Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200135 (University of Belgrade, Faculty of Technology and Metallurgy)

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Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200135 (University of Belgrade, Faculty of Technology and Metallurgy) (en)
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, Ugovor br. 451-03-68/2020-14/200135 (Univerzitet u Beogradu, Tehnološko-metalurški fakultet) (sr_RS)
Министарство просвете, науке и технолошког развоја Републике Србије, Уговор бр. 451-03-68/2020-14/200135 (Универзитет у Београду, Технолошко-металуршки факултет) (sr)
Authors

Publications

Production of prebiotic enriched maple syrup through enzymatic conversion of sucrose into fructo-oligosaccharides

Veljković, Milica; Banjanac, Katarina; Milivojević, Ana; Ćorović, Marija; Simović, Milica; Bezbradica, Dejan

(Elsevier Ltd., 2024-08)

TY  - JOUR
AU  - Veljković, Milica
AU  - Banjanac, Katarina
AU  - Milivojević, Ana
AU  - Ćorović, Marija
AU  - Simović, Milica
AU  - Bezbradica, Dejan
PY  - 2024-08
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7425
AB  - Maple syrup, a popular natural sweetener has a high content of sucrose, whose consumption is linked to different health issues such as obesity and diabetes. Hence, within this paper, the conversion of sucrose to prebiotics (fructo-oligosaccharides, FOS) was proposed as a promising approach to obtaining a healthier, value-added product. Enzymatic conversion was optimized with respect to key experimental factors, and thereafter derived immobilized preparation of fructosyltransferase (FTase) from Pectinex® Ultra SP-L (FTase-epoxy Purolite, 255 IU/g support) was successfully utilized to produce novel functional product in ten consecutive reaction cycles. The product, obtained under optimal conditions (60 ◦C, 7.65 IU/mL, 12 h), resulted in 56.0% FOS, 16.7% sucrose, and 27.3% monosaccharides of total carbohydrates, leading to a 1.6-fold reduction in caloric content. The obtained products` prebiotic potential toward the probiotic strain Lactobacillus plantarum 299v was demonstrated. The changes in physico-chemical and sensorial characteristics were esteemed as negligible.
PB  - Elsevier Ltd.
T2  - Food Chemistry
T1  - Production of prebiotic enriched maple syrup through enzymatic conversion of sucrose into fructo-oligosaccharides
SP  - 139180
VL  - 449
DO  - 10.1016/j.foodchem.2024.139180
ER  - 
@article{
author = "Veljković, Milica and Banjanac, Katarina and Milivojević, Ana and Ćorović, Marija and Simović, Milica and Bezbradica, Dejan",
year = "2024-08",
abstract = "Maple syrup, a popular natural sweetener has a high content of sucrose, whose consumption is linked to different health issues such as obesity and diabetes. Hence, within this paper, the conversion of sucrose to prebiotics (fructo-oligosaccharides, FOS) was proposed as a promising approach to obtaining a healthier, value-added product. Enzymatic conversion was optimized with respect to key experimental factors, and thereafter derived immobilized preparation of fructosyltransferase (FTase) from Pectinex® Ultra SP-L (FTase-epoxy Purolite, 255 IU/g support) was successfully utilized to produce novel functional product in ten consecutive reaction cycles. The product, obtained under optimal conditions (60 ◦C, 7.65 IU/mL, 12 h), resulted in 56.0% FOS, 16.7% sucrose, and 27.3% monosaccharides of total carbohydrates, leading to a 1.6-fold reduction in caloric content. The obtained products` prebiotic potential toward the probiotic strain Lactobacillus plantarum 299v was demonstrated. The changes in physico-chemical and sensorial characteristics were esteemed as negligible.",
publisher = "Elsevier Ltd.",
journal = "Food Chemistry",
title = "Production of prebiotic enriched maple syrup through enzymatic conversion of sucrose into fructo-oligosaccharides",
pages = "139180",
volume = "449",
doi = "10.1016/j.foodchem.2024.139180"
}
Veljković, M., Banjanac, K., Milivojević, A., Ćorović, M., Simović, M.,& Bezbradica, D.. (2024-08). Production of prebiotic enriched maple syrup through enzymatic conversion of sucrose into fructo-oligosaccharides. in Food Chemistry
Elsevier Ltd.., 449, 139180.
https://doi.org/10.1016/j.foodchem.2024.139180
Veljković M, Banjanac K, Milivojević A, Ćorović M, Simović M, Bezbradica D. Production of prebiotic enriched maple syrup through enzymatic conversion of sucrose into fructo-oligosaccharides. in Food Chemistry. 2024;449:139180.
doi:10.1016/j.foodchem.2024.139180 .
Veljković, Milica, Banjanac, Katarina, Milivojević, Ana, Ćorović, Marija, Simović, Milica, Bezbradica, Dejan, "Production of prebiotic enriched maple syrup through enzymatic conversion of sucrose into fructo-oligosaccharides" in Food Chemistry, 449 (2024-08):139180,
https://doi.org/10.1016/j.foodchem.2024.139180 . .

Crystallographic and theoretical analysis of a spirohydantoin derivative: 3-(4‑tert-butylbenzoyl)-1,3-diazaspiro[4.5]decane-2,4‑dione

Lazić, Anita; Radovanović, Lidija; Rogan, Jelena; Valentić, Nataša; Đorđević, Ivana; Trišović, Nemanja

(Elsevier B.V., 2024-08)

TY  - JOUR
AU  - Lazić, Anita
AU  - Radovanović, Lidija
AU  - Rogan, Jelena
AU  - Valentić, Nataša
AU  - Đorđević, Ivana
AU  - Trišović, Nemanja
PY  - 2024-08
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7435
AB  - Providing structural information on drug-like compounds is a significant step in efforts to develop innovative drugs with balanced solubility, cell permeability and target binding. In this paper, a new cyclohexane-5-spirohydantoin tethered with a 4‑tert-butylbenzoyl group was synthesized and its crystal structure was determined using the single crystal X-ray diffraction. The Hirshfeld surface analysis was used to gain a preliminary insight into the proportion and nature of the intermolecular interactions in the crystal structure, while their quantitative description is further presented in terms of a systematic analysis of dimeric motifs representing different recognition modes. A combination of N–H∙∙∙O and C(sp3)–H∙∙∙O hydrogen bonds, C(sp3)–H∙∙∙π, lone-pair∙∙∙π and π∙∙∙π stacking interactions links the molecules into a bilayer having two carbonyl O atoms exposed to the exterior. Further stacking of the bilayers occurs through C(sp3)–H∙∙∙O hydrogen bonds involving these O atoms as acceptors, C(sp3)–H∙∙∙π and π∙∙∙π stacking interactions between the phenyl groups. The molecular electrostatic potential surface map reveals that the carbonyl O atoms of the hydantoin ring and the phenyl ring are electrophilic centers, while the N1–H1 group is a nucleophilic center. The calculated HOMO and LUMO energies were used to semiquantitatively estimate the global reactivity descriptors suggesting the soft nature of the molecule.
PB  - Elsevier B.V.
T2  - Journal of Molecular Structure
T1  - Crystallographic and theoretical analysis of a spirohydantoin derivative: 3-(4‑tert-butylbenzoyl)-1,3-diazaspiro[4.5]decane-2,4‑dione
SP  - 138234
VL  - 1310
DO  - 10.1016/j.molstruc.2024.138234
ER  - 
@article{
author = "Lazić, Anita and Radovanović, Lidija and Rogan, Jelena and Valentić, Nataša and Đorđević, Ivana and Trišović, Nemanja",
year = "2024-08",
abstract = "Providing structural information on drug-like compounds is a significant step in efforts to develop innovative drugs with balanced solubility, cell permeability and target binding. In this paper, a new cyclohexane-5-spirohydantoin tethered with a 4‑tert-butylbenzoyl group was synthesized and its crystal structure was determined using the single crystal X-ray diffraction. The Hirshfeld surface analysis was used to gain a preliminary insight into the proportion and nature of the intermolecular interactions in the crystal structure, while their quantitative description is further presented in terms of a systematic analysis of dimeric motifs representing different recognition modes. A combination of N–H∙∙∙O and C(sp3)–H∙∙∙O hydrogen bonds, C(sp3)–H∙∙∙π, lone-pair∙∙∙π and π∙∙∙π stacking interactions links the molecules into a bilayer having two carbonyl O atoms exposed to the exterior. Further stacking of the bilayers occurs through C(sp3)–H∙∙∙O hydrogen bonds involving these O atoms as acceptors, C(sp3)–H∙∙∙π and π∙∙∙π stacking interactions between the phenyl groups. The molecular electrostatic potential surface map reveals that the carbonyl O atoms of the hydantoin ring and the phenyl ring are electrophilic centers, while the N1–H1 group is a nucleophilic center. The calculated HOMO and LUMO energies were used to semiquantitatively estimate the global reactivity descriptors suggesting the soft nature of the molecule.",
publisher = "Elsevier B.V.",
journal = "Journal of Molecular Structure",
title = "Crystallographic and theoretical analysis of a spirohydantoin derivative: 3-(4‑tert-butylbenzoyl)-1,3-diazaspiro[4.5]decane-2,4‑dione",
pages = "138234",
volume = "1310",
doi = "10.1016/j.molstruc.2024.138234"
}
Lazić, A., Radovanović, L., Rogan, J., Valentić, N., Đorđević, I.,& Trišović, N.. (2024-08). Crystallographic and theoretical analysis of a spirohydantoin derivative: 3-(4‑tert-butylbenzoyl)-1,3-diazaspiro[4.5]decane-2,4‑dione. in Journal of Molecular Structure
Elsevier B.V.., 1310, 138234.
https://doi.org/10.1016/j.molstruc.2024.138234
Lazić A, Radovanović L, Rogan J, Valentić N, Đorđević I, Trišović N. Crystallographic and theoretical analysis of a spirohydantoin derivative: 3-(4‑tert-butylbenzoyl)-1,3-diazaspiro[4.5]decane-2,4‑dione. in Journal of Molecular Structure. 2024;1310:138234.
doi:10.1016/j.molstruc.2024.138234 .
Lazić, Anita, Radovanović, Lidija, Rogan, Jelena, Valentić, Nataša, Đorđević, Ivana, Trišović, Nemanja, "Crystallographic and theoretical analysis of a spirohydantoin derivative: 3-(4‑tert-butylbenzoyl)-1,3-diazaspiro[4.5]decane-2,4‑dione" in Journal of Molecular Structure, 1310 (2024-08):138234,
https://doi.org/10.1016/j.molstruc.2024.138234 . .

Catalytic hydrogenation reaction micro-kinetic model for dibenzyltoluene as liquid organic hydrogen carrier

Tomić, Aleksandra; Pomeroy, Brett; Todić, Branislav; Likozar, Blaž; Nikačević, Nikola

(Elsevier Ltd., 2024-07)

TY  - JOUR
AU  - Tomić, Aleksandra
AU  - Pomeroy, Brett
AU  - Todić, Branislav
AU  - Likozar, Blaž
AU  - Nikačević, Nikola
PY  - 2024-07
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7452
AB  - The implementation of the liquid organic hydrogen carrier (LOHC) technology for efficient energy storage requires the development of a reliable kinetic model for both hydrogenation and dehydrogenation processes. In this research study, the catalytic hydrocarbon saturation for a dibenzyltoluene (DBT) mixture solution, containing dibenzylbenzene (DBB), dibenzylethylbenzene (DBEB) and impurities has been performed in the presence of Ru/Al2O3 particles. The influence of different reaction conditions, such as temperature, pressure, initial reactant concentration, catalyst amount and stirring speed has been examined. A measurement-based system micro-kinetics, based on the Langmuir–Hinshelwood mechanism with dissociative H2 surface adsorption, has been derived. H2 thermodynamic solubility equilibrium was defined through Henry's law. The adsorbing, desorption and reactivity of inert solvent molecules was not considered to be relevant. The mass transfer resistance over 1000 rpm stirring speed was negligible. Relative- and mean squared error of representation were 40.9% and 1.00×10−4, respectively. Expressions gave an excellent data prediction for the profile period trends with a relatively accurate estimation of H2 intermediates' rate selectivity, H2-covered area approximation and pathway rate-determining steps. Due to the lack of commercially available standard chemical compounds for quantitative analysis techniques, a novel experiment-based numerical calibration method was developed. Mean field (micro)kinetics represent an advancement in the mesoscale mechanistic understanding of physical interface phenomena. This also enables catalysis structure–activity relationships, unlocking the methodology for new LOHC reaching beyond traditional, such as ammonia, methanol and formate, which do not release H2 alone. Integrated multiscale simulations could include fluidics later on.
PB  - Elsevier Ltd.
T2  - Applied Energy
T1  - Catalytic hydrogenation reaction micro-kinetic model for dibenzyltoluene as liquid organic hydrogen carrier
SP  - 123262
VL  - 365
DO  - 10.1016/j.apenergy.2024.123262
ER  - 
@article{
author = "Tomić, Aleksandra and Pomeroy, Brett and Todić, Branislav and Likozar, Blaž and Nikačević, Nikola",
year = "2024-07",
abstract = "The implementation of the liquid organic hydrogen carrier (LOHC) technology for efficient energy storage requires the development of a reliable kinetic model for both hydrogenation and dehydrogenation processes. In this research study, the catalytic hydrocarbon saturation for a dibenzyltoluene (DBT) mixture solution, containing dibenzylbenzene (DBB), dibenzylethylbenzene (DBEB) and impurities has been performed in the presence of Ru/Al2O3 particles. The influence of different reaction conditions, such as temperature, pressure, initial reactant concentration, catalyst amount and stirring speed has been examined. A measurement-based system micro-kinetics, based on the Langmuir–Hinshelwood mechanism with dissociative H2 surface adsorption, has been derived. H2 thermodynamic solubility equilibrium was defined through Henry's law. The adsorbing, desorption and reactivity of inert solvent molecules was not considered to be relevant. The mass transfer resistance over 1000 rpm stirring speed was negligible. Relative- and mean squared error of representation were 40.9% and 1.00×10−4, respectively. Expressions gave an excellent data prediction for the profile period trends with a relatively accurate estimation of H2 intermediates' rate selectivity, H2-covered area approximation and pathway rate-determining steps. Due to the lack of commercially available standard chemical compounds for quantitative analysis techniques, a novel experiment-based numerical calibration method was developed. Mean field (micro)kinetics represent an advancement in the mesoscale mechanistic understanding of physical interface phenomena. This also enables catalysis structure–activity relationships, unlocking the methodology for new LOHC reaching beyond traditional, such as ammonia, methanol and formate, which do not release H2 alone. Integrated multiscale simulations could include fluidics later on.",
publisher = "Elsevier Ltd.",
journal = "Applied Energy",
title = "Catalytic hydrogenation reaction micro-kinetic model for dibenzyltoluene as liquid organic hydrogen carrier",
pages = "123262",
volume = "365",
doi = "10.1016/j.apenergy.2024.123262"
}
Tomić, A., Pomeroy, B., Todić, B., Likozar, B.,& Nikačević, N.. (2024-07). Catalytic hydrogenation reaction micro-kinetic model for dibenzyltoluene as liquid organic hydrogen carrier. in Applied Energy
Elsevier Ltd.., 365, 123262.
https://doi.org/10.1016/j.apenergy.2024.123262
Tomić A, Pomeroy B, Todić B, Likozar B, Nikačević N. Catalytic hydrogenation reaction micro-kinetic model for dibenzyltoluene as liquid organic hydrogen carrier. in Applied Energy. 2024;365:123262.
doi:10.1016/j.apenergy.2024.123262 .
Tomić, Aleksandra, Pomeroy, Brett, Todić, Branislav, Likozar, Blaž, Nikačević, Nikola, "Catalytic hydrogenation reaction micro-kinetic model for dibenzyltoluene as liquid organic hydrogen carrier" in Applied Energy, 365 (2024-07):123262,
https://doi.org/10.1016/j.apenergy.2024.123262 . .

Determination of the ductile-to-brittle transition temperature of NIOMOL 490 K steel welded joints

Maksimović, Ana; Milović, Ljubica; Zečević, Bojana; Aleksić, Vujadin; Bekrić, Dragoljub

(Elsevier B.V., 2024-06)


                                            

                                            
Maksimović, A., Milović, L., Zečević, B., Aleksić, V.,& Bekrić, D.. (2024-06). Determination of the ductile-to-brittle transition temperature of NIOMOL 490 K steel welded joints. in Theoretical and Applied Fracture Mechanics
Elsevier B.V.., 131, 104404.
https://doi.org/10.1016/j.tafmec.2024.104404
Maksimović A, Milović L, Zečević B, Aleksić V, Bekrić D. Determination of the ductile-to-brittle transition temperature of NIOMOL 490 K steel welded joints. in Theoretical and Applied Fracture Mechanics. 2024;131:104404.
doi:10.1016/j.tafmec.2024.104404 .
Maksimović, Ana, Milović, Ljubica, Zečević, Bojana, Aleksić, Vujadin, Bekrić, Dragoljub, "Determination of the ductile-to-brittle transition temperature of NIOMOL 490 K steel welded joints" in Theoretical and Applied Fracture Mechanics, 131 (2024-06):104404,
https://doi.org/10.1016/j.tafmec.2024.104404 . .

Cornstarch aerogels with thymol, citronellol, carvacrol, and eugenol prepared by supercritical CO2- assisted techniques for potential biomedical applications

Milovanović, Stoja; Marković, Darka; Janković-Častvan, Ivona; Lukić, Ivana

(Elsevier Ltd., 2024-05)

TY  - JOUR
AU  - Milovanović, Stoja
AU  - Marković, Darka
AU  - Janković-Častvan, Ivona
AU  - Lukić, Ivana
PY  - 2024-05
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7258
AB  - This study focuses on the development of bioactive materials using environmentally friendly techniques, renewable, biocompatible, and biodegradable polysaccharide, as well as natural bioactive compounds (NBCs) found in plant extracts. First, cornstarch aerogels with a porosity of 86 % and a specific surface area of 225 m2/g were produced via supercritical CO2- assisted drying. Further, thymol, citronellol, carvacrol, and eugenol were incorporated into the aerogels by supercritical CO2- assisted impregnation, which allowed variation in loadings of NBCs (12.8–17.6 %). Interaction between cornstarch aerogels and NBCs determined impregnation rate, pore wall thickness (in the range 18–95 nm), liquid absorption capacity (from 265 to 569 %), dehydration mass loss, and release in phosphate-buffered saline. Controlled release of NBCs was maintained over a 3-day period. Moreover, impregnated aerogels showed a significant antioxidant effect with the highest value for DPPH radical inhibition of 25.5 % determined for the aerogels impregnated with eugenol. Notable antimicrobial activity against tested Gram-negative bacteria, Gram-positive bacteria, and fungi was also observed, being the highest for thymol-loaded aerogel with the diameter of the inhibition zones of up to 37.5 mm. This work shows a promising green approach for the production of bioactive two-component starch-based materials for potential applications in skin infection treatment.
PB  - Elsevier Ltd.
T2  - Carbohydrate Polymers
T1  - Cornstarch aerogels with thymol, citronellol, carvacrol, and eugenol prepared by supercritical CO2- assisted techniques for potential biomedical applications
SP  - 121874
VL  - 331
DO  - 10.1016/j.carbpol.2024.121874
ER  - 
@article{
author = "Milovanović, Stoja and Marković, Darka and Janković-Častvan, Ivona and Lukić, Ivana",
year = "2024-05",
abstract = "This study focuses on the development of bioactive materials using environmentally friendly techniques, renewable, biocompatible, and biodegradable polysaccharide, as well as natural bioactive compounds (NBCs) found in plant extracts. First, cornstarch aerogels with a porosity of 86 % and a specific surface area of 225 m2/g were produced via supercritical CO2- assisted drying. Further, thymol, citronellol, carvacrol, and eugenol were incorporated into the aerogels by supercritical CO2- assisted impregnation, which allowed variation in loadings of NBCs (12.8–17.6 %). Interaction between cornstarch aerogels and NBCs determined impregnation rate, pore wall thickness (in the range 18–95 nm), liquid absorption capacity (from 265 to 569 %), dehydration mass loss, and release in phosphate-buffered saline. Controlled release of NBCs was maintained over a 3-day period. Moreover, impregnated aerogels showed a significant antioxidant effect with the highest value for DPPH radical inhibition of 25.5 % determined for the aerogels impregnated with eugenol. Notable antimicrobial activity against tested Gram-negative bacteria, Gram-positive bacteria, and fungi was also observed, being the highest for thymol-loaded aerogel with the diameter of the inhibition zones of up to 37.5 mm. This work shows a promising green approach for the production of bioactive two-component starch-based materials for potential applications in skin infection treatment.",
publisher = "Elsevier Ltd.",
journal = "Carbohydrate Polymers",
title = "Cornstarch aerogels with thymol, citronellol, carvacrol, and eugenol prepared by supercritical CO2- assisted techniques for potential biomedical applications",
pages = "121874",
volume = "331",
doi = "10.1016/j.carbpol.2024.121874"
}
Milovanović, S., Marković, D., Janković-Častvan, I.,& Lukić, I.. (2024-05). Cornstarch aerogels with thymol, citronellol, carvacrol, and eugenol prepared by supercritical CO2- assisted techniques for potential biomedical applications. in Carbohydrate Polymers
Elsevier Ltd.., 331, 121874.
https://doi.org/10.1016/j.carbpol.2024.121874
Milovanović S, Marković D, Janković-Častvan I, Lukić I. Cornstarch aerogels with thymol, citronellol, carvacrol, and eugenol prepared by supercritical CO2- assisted techniques for potential biomedical applications. in Carbohydrate Polymers. 2024;331:121874.
doi:10.1016/j.carbpol.2024.121874 .
Milovanović, Stoja, Marković, Darka, Janković-Častvan, Ivona, Lukić, Ivana, "Cornstarch aerogels with thymol, citronellol, carvacrol, and eugenol prepared by supercritical CO2- assisted techniques for potential biomedical applications" in Carbohydrate Polymers, 331 (2024-05):121874,
https://doi.org/10.1016/j.carbpol.2024.121874 . .

GC-MS/MS and LC-MS/MS analysis followed by risk ranking of mepiquat and pyrethroids in coffee

Radulović, Jelena; Lučić, Milica; Onjia, Antonije

(Academic Press Inc., 2024-05)

TY  - JOUR
AU  - Radulović, Jelena
AU  - Lučić, Milica
AU  - Onjia, Antonije
PY  - 2024-05
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7361
AB  - Pesticides used in coffee cultivation may remain behind and pose a risk to humans even after various processing stages of coffee beans (washing, drying, roasting, and grinding). In addition to pesticides applied to battle pests and diseases, mepiquat formation occurs during roasting. A comprehensive LC-MS/MS and GC-MS/MS multi-residue screening approach to determine pesticides in coffee was used in this study. Residues were extracted using the QuEChERS method and analyzed using multiple reaction monitoring (MRM) mass spectrometry after chromatographic separations. Good linearity (r2˃0.9919), recovery (80.2–118%), and RSD (≤19%) were obtained for the procedure including sample preparation and both instrumental techniques. Nine residues were identified as commonly present in coffee samples collected from supermarkets in Serbia. The human intake risk of pesticides was categorized and prioritized using the matrix ranking scheme. Also, health risk assessment was conducted by calculating acute and chronic hazard indices. Multi-residues were present in 79.2% of samples, whereas mepiquat chloride (88.9%) and permethrin (81.9%) were the most detected residues. Risk ranking classified mepiquat chloride, permethrin, and methiocarb sulfone in a high-risk group. On the other hand, the human health risk assessment indicated no risks in the short- and long-term and no cumulative chronic risk.
PB  - Academic Press Inc.
T2  - Journal of Food Composition and Analysis
T1  - GC-MS/MS and LC-MS/MS analysis followed by risk ranking of mepiquat and pyrethroids in coffee
SP  - 106100
VL  - 129
DO  - 10.1016/j.jfca.2024.106100
ER  - 
@article{
author = "Radulović, Jelena and Lučić, Milica and Onjia, Antonije",
year = "2024-05",
abstract = "Pesticides used in coffee cultivation may remain behind and pose a risk to humans even after various processing stages of coffee beans (washing, drying, roasting, and grinding). In addition to pesticides applied to battle pests and diseases, mepiquat formation occurs during roasting. A comprehensive LC-MS/MS and GC-MS/MS multi-residue screening approach to determine pesticides in coffee was used in this study. Residues were extracted using the QuEChERS method and analyzed using multiple reaction monitoring (MRM) mass spectrometry after chromatographic separations. Good linearity (r2˃0.9919), recovery (80.2–118%), and RSD (≤19%) were obtained for the procedure including sample preparation and both instrumental techniques. Nine residues were identified as commonly present in coffee samples collected from supermarkets in Serbia. The human intake risk of pesticides was categorized and prioritized using the matrix ranking scheme. Also, health risk assessment was conducted by calculating acute and chronic hazard indices. Multi-residues were present in 79.2% of samples, whereas mepiquat chloride (88.9%) and permethrin (81.9%) were the most detected residues. Risk ranking classified mepiquat chloride, permethrin, and methiocarb sulfone in a high-risk group. On the other hand, the human health risk assessment indicated no risks in the short- and long-term and no cumulative chronic risk.",
publisher = "Academic Press Inc.",
journal = "Journal of Food Composition and Analysis",
title = "GC-MS/MS and LC-MS/MS analysis followed by risk ranking of mepiquat and pyrethroids in coffee",
pages = "106100",
volume = "129",
doi = "10.1016/j.jfca.2024.106100"
}
Radulović, J., Lučić, M.,& Onjia, A.. (2024-05). GC-MS/MS and LC-MS/MS analysis followed by risk ranking of mepiquat and pyrethroids in coffee. in Journal of Food Composition and Analysis
Academic Press Inc.., 129, 106100.
https://doi.org/10.1016/j.jfca.2024.106100
Radulović J, Lučić M, Onjia A. GC-MS/MS and LC-MS/MS analysis followed by risk ranking of mepiquat and pyrethroids in coffee. in Journal of Food Composition and Analysis. 2024;129:106100.
doi:10.1016/j.jfca.2024.106100 .
Radulović, Jelena, Lučić, Milica, Onjia, Antonije, "GC-MS/MS and LC-MS/MS analysis followed by risk ranking of mepiquat and pyrethroids in coffee" in Journal of Food Composition and Analysis, 129 (2024-05):106100,
https://doi.org/10.1016/j.jfca.2024.106100 . .
1

Source-specific probabilistic health risk assessment of potentially toxic elements in groundwater of a copper mining and smelter area

Vesković, Jelena; Bulatović, Sandra; Miletić, Andrijana; Tadić, Tamara; Marković, Bojana; Nastasović, Aleksandra; Onjia, Antonije

(Springer Science and Business Media Deutschland GmbH, 2024)

TY  - JOUR
AU  - Vesković, Jelena
AU  - Bulatović, Sandra
AU  - Miletić, Andrijana
AU  - Tadić, Tamara
AU  - Marković, Bojana
AU  - Nastasović, Aleksandra
AU  - Onjia, Antonije
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7141
AB  - The occurrence of potentially toxic elements (PTEs), including twelve heavy metal(loid)s (Cd, Cr, Cu, Ni, Pb, Zn, Hg, As, Co, V, Fe, Mn), fluoride (F−), and nitrate (NO3−) was evaluated in groundwater in the copper mining and smelter area of Bor city (south Carpathian, eastern Serbia). Groundwater samples were analyzed to determine the extent of pollution, identify natural and anthropogenic input of PTEs, and estimate potential human health risks due to exposure to these substances. The results revealed that the groundwater in the study area was highly contaminated with PTEs, particularly Cu and Zn. Multivariate analysis supported the natural and anthropogenic origin of PTEs, with Fe, Mn, and F− classified as naturally occurring, NO3− resulting from agricultural activities, while other PTEs were linked to smelter/mining processes. Geospatial mapping discovered several hotspots with potential high non-cancer and cancer risks to humans through ingestion pathway. From the studied PTEs, As is the most health risk contributing toxic element. The source-specific probabilistic risk assessment indicated the most significant contribution to the hazard index and total cancer risk from accidental leakage of metallurgical wastewater and wastewater from open mine pits. Monte Carlo analysis identified the human body weight and the ingestion rate as the most sensitive risk parameters. The study underscores the need for stringent environmental management measures, emphasizing the critical role of source-specific risk assessments in mitigating potential hazards associated with metallurgical wastewater and open mine pits.
PB  - Springer Science and Business Media Deutschland GmbH
T2  - Stochastic Environmental Research and Risk Assessment
T1  - Source-specific probabilistic health risk assessment of potentially toxic elements in groundwater of a copper mining and smelter area
EP  - 1612
IS  - 4
SP  - 1597
VL  - 38
DO  - 10.1007/s00477-023-02643-6
ER  - 
@article{
author = "Vesković, Jelena and Bulatović, Sandra and Miletić, Andrijana and Tadić, Tamara and Marković, Bojana and Nastasović, Aleksandra and Onjia, Antonije",
year = "2024",
abstract = "The occurrence of potentially toxic elements (PTEs), including twelve heavy metal(loid)s (Cd, Cr, Cu, Ni, Pb, Zn, Hg, As, Co, V, Fe, Mn), fluoride (F−), and nitrate (NO3−) was evaluated in groundwater in the copper mining and smelter area of Bor city (south Carpathian, eastern Serbia). Groundwater samples were analyzed to determine the extent of pollution, identify natural and anthropogenic input of PTEs, and estimate potential human health risks due to exposure to these substances. The results revealed that the groundwater in the study area was highly contaminated with PTEs, particularly Cu and Zn. Multivariate analysis supported the natural and anthropogenic origin of PTEs, with Fe, Mn, and F− classified as naturally occurring, NO3− resulting from agricultural activities, while other PTEs were linked to smelter/mining processes. Geospatial mapping discovered several hotspots with potential high non-cancer and cancer risks to humans through ingestion pathway. From the studied PTEs, As is the most health risk contributing toxic element. The source-specific probabilistic risk assessment indicated the most significant contribution to the hazard index and total cancer risk from accidental leakage of metallurgical wastewater and wastewater from open mine pits. Monte Carlo analysis identified the human body weight and the ingestion rate as the most sensitive risk parameters. The study underscores the need for stringent environmental management measures, emphasizing the critical role of source-specific risk assessments in mitigating potential hazards associated with metallurgical wastewater and open mine pits.",
publisher = "Springer Science and Business Media Deutschland GmbH",
journal = "Stochastic Environmental Research and Risk Assessment",
title = "Source-specific probabilistic health risk assessment of potentially toxic elements in groundwater of a copper mining and smelter area",
pages = "1612-1597",
number = "4",
volume = "38",
doi = "10.1007/s00477-023-02643-6"
}
Vesković, J., Bulatović, S., Miletić, A., Tadić, T., Marković, B., Nastasović, A.,& Onjia, A.. (2024). Source-specific probabilistic health risk assessment of potentially toxic elements in groundwater of a copper mining and smelter area. in Stochastic Environmental Research and Risk Assessment
Springer Science and Business Media Deutschland GmbH., 38(4), 1597-1612.
https://doi.org/10.1007/s00477-023-02643-6
Vesković J, Bulatović S, Miletić A, Tadić T, Marković B, Nastasović A, Onjia A. Source-specific probabilistic health risk assessment of potentially toxic elements in groundwater of a copper mining and smelter area. in Stochastic Environmental Research and Risk Assessment. 2024;38(4):1597-1612.
doi:10.1007/s00477-023-02643-6 .
Vesković, Jelena, Bulatović, Sandra, Miletić, Andrijana, Tadić, Tamara, Marković, Bojana, Nastasović, Aleksandra, Onjia, Antonije, "Source-specific probabilistic health risk assessment of potentially toxic elements in groundwater of a copper mining and smelter area" in Stochastic Environmental Research and Risk Assessment, 38, no. 4 (2024):1597-1612,
https://doi.org/10.1007/s00477-023-02643-6 . .
2
1

The effect of sulfuric acid treatment on physicochemical properties of g-C3N4 and its efficiency for photocatalytic reduction of Cr(VI)

Petrović, Jana; Radovanović, Željko; Lazarević, Slavica; Janaćković, Đorđe; Petrović, Rada; Gasik, Michael

(Savez hemijskih inženjera Srbije, 2024)

TY  - CONF
AU  - Petrović, Jana
AU  - Radovanović, Željko
AU  - Lazarević, Slavica
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
AU  - Gasik, Michael
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7486
AB  - A great deal of interest is directed towards g-C3N4 (CN) for the photocatalytic reduction of Cr(VI), due to its high stability in acidic conditions and medium band gap (~2,7 eV), but its practical application is limited because of the high recombination rate of electrons and holes. Sulfuric acid treatment is considered as one of the methods for optimizing properties of CN by certain surface and possibly structure modifications which would lead to an increased specific surface area (Sp) and more active sites, anchoring electronegative groups to enhance charge separation, exfoliated bulk CN into the nanosheets, etc. The aim of this research was to investigate the influence of H2SO4 concentration and other experimental conditions (temperature and time) on physicochemical properties and photocatalytic efficiency of CN.
PB  - Savez hemijskih inženjera Srbije
C3  - Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
T1  - The effect of sulfuric acid treatment on physicochemical properties of g-C3N4 and its efficiency for photocatalytic reduction of Cr(VI)
IS  - 1S
SP  - 71
VL  - 78
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7486
ER  - 
@conference{
author = "Petrović, Jana and Radovanović, Željko and Lazarević, Slavica and Janaćković, Đorđe and Petrović, Rada and Gasik, Michael",
year = "2024",
abstract = "A great deal of interest is directed towards g-C3N4 (CN) for the photocatalytic reduction of Cr(VI), due to its high stability in acidic conditions and medium band gap (~2,7 eV), but its practical application is limited because of the high recombination rate of electrons and holes. Sulfuric acid treatment is considered as one of the methods for optimizing properties of CN by certain surface and possibly structure modifications which would lead to an increased specific surface area (Sp) and more active sites, anchoring electronegative groups to enhance charge separation, exfoliated bulk CN into the nanosheets, etc. The aim of this research was to investigate the influence of H2SO4 concentration and other experimental conditions (temperature and time) on physicochemical properties and photocatalytic efficiency of CN.",
publisher = "Savez hemijskih inženjera Srbije",
journal = "Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts",
title = "The effect of sulfuric acid treatment on physicochemical properties of g-C3N4 and its efficiency for photocatalytic reduction of Cr(VI)",
number = "1S",
pages = "71",
volume = "78",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7486"
}
Petrović, J., Radovanović, Ž., Lazarević, S., Janaćković, Đ., Petrović, R.,& Gasik, M.. (2024). The effect of sulfuric acid treatment on physicochemical properties of g-C3N4 and its efficiency for photocatalytic reduction of Cr(VI). in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
Savez hemijskih inženjera Srbije., 78(1S), 71.
https://hdl.handle.net/21.15107/rcub_technorep_7486
Petrović J, Radovanović Ž, Lazarević S, Janaćković Đ, Petrović R, Gasik M. The effect of sulfuric acid treatment on physicochemical properties of g-C3N4 and its efficiency for photocatalytic reduction of Cr(VI). in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts. 2024;78(1S):71.
https://hdl.handle.net/21.15107/rcub_technorep_7486 .
Petrović, Jana, Radovanović, Željko, Lazarević, Slavica, Janaćković, Đorđe, Petrović, Rada, Gasik, Michael, "The effect of sulfuric acid treatment on physicochemical properties of g-C3N4 and its efficiency for photocatalytic reduction of Cr(VI)" in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts, 78, no. 1S (2024):71,
https://hdl.handle.net/21.15107/rcub_technorep_7486 .

Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia)

Vesković, Jelena; Deršek-Timotić, Ivana; Lučić, Milica; Miletić, Andrijana; Đolić, Maja; Ražić, Slavica; Onjia, Antonije

(Elsevier Ltd., 2024)

TY  - JOUR
AU  - Vesković, Jelena
AU  - Deršek-Timotić, Ivana
AU  - Lučić, Milica
AU  - Miletić, Andrijana
AU  - Đolić, Maja
AU  - Ražić, Slavica
AU  - Onjia, Antonije
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7407
AB  - Population growth, urbanization, industry, floods, and agriculture globally degrade groundwater in river plains, necessitating action for its quality assessment and management. Hence, a comprehensive methodology, including hydrogeochemical facies (Piper, Gibbs), irrigation indices (SAR, Wilcox), entropy-weighted water quality index (EWQI), positive matrix factorization (PMF), and Monte Carlo simulation of source-specific health risks was used in this study to analyze groundwater in the Morava river plain (Serbia). The results revealed a prevalent Ca–Mg–HCO3 groundwater type, influenced by water–rock interactions. Although groundwater was found suitable for irrigation, only 66.7 % of the samples were considered drinkable. Agricultural activities, natural processes, and municipal wastewater were identified as primary pollution sources. The incremental lifetime cancer risk (ILCR) and hazard index (HI) threshold exceedance for adults and children ranged from 8.5 % to 39 % of the samples, with arsenic identified as the most risk-contributing contaminant. These findings provide valuable insights for researchers studying groundwater vulnerability in river plains.
PB  - Elsevier Ltd.
T2  - Marine Pollution Bulletin
T1  - Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia)
SP  - 116277
VL  - 201
DO  - 10.1016/j.marpolbul.2024.116277
ER  - 
@article{
author = "Vesković, Jelena and Deršek-Timotić, Ivana and Lučić, Milica and Miletić, Andrijana and Đolić, Maja and Ražić, Slavica and Onjia, Antonije",
year = "2024",
abstract = "Population growth, urbanization, industry, floods, and agriculture globally degrade groundwater in river plains, necessitating action for its quality assessment and management. Hence, a comprehensive methodology, including hydrogeochemical facies (Piper, Gibbs), irrigation indices (SAR, Wilcox), entropy-weighted water quality index (EWQI), positive matrix factorization (PMF), and Monte Carlo simulation of source-specific health risks was used in this study to analyze groundwater in the Morava river plain (Serbia). The results revealed a prevalent Ca–Mg–HCO3 groundwater type, influenced by water–rock interactions. Although groundwater was found suitable for irrigation, only 66.7 % of the samples were considered drinkable. Agricultural activities, natural processes, and municipal wastewater were identified as primary pollution sources. The incremental lifetime cancer risk (ILCR) and hazard index (HI) threshold exceedance for adults and children ranged from 8.5 % to 39 % of the samples, with arsenic identified as the most risk-contributing contaminant. These findings provide valuable insights for researchers studying groundwater vulnerability in river plains.",
publisher = "Elsevier Ltd.",
journal = "Marine Pollution Bulletin",
title = "Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia)",
pages = "116277",
volume = "201",
doi = "10.1016/j.marpolbul.2024.116277"
}
Vesković, J., Deršek-Timotić, I., Lučić, M., Miletić, A., Đolić, M., Ražić, S.,& Onjia, A.. (2024). Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia). in Marine Pollution Bulletin
Elsevier Ltd.., 201, 116277.
https://doi.org/10.1016/j.marpolbul.2024.116277
Vesković J, Deršek-Timotić I, Lučić M, Miletić A, Đolić M, Ražić S, Onjia A. Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia). in Marine Pollution Bulletin. 2024;201:116277.
doi:10.1016/j.marpolbul.2024.116277 .
Vesković, Jelena, Deršek-Timotić, Ivana, Lučić, Milica, Miletić, Andrijana, Đolić, Maja, Ražić, Slavica, Onjia, Antonije, "Entropy-weighted water quality index, hydrogeochemistry, and Monte Carlo simulation of source-specific health risks of groundwater in the Morava River plain (Serbia)" in Marine Pollution Bulletin, 201 (2024):116277,
https://doi.org/10.1016/j.marpolbul.2024.116277 . .
1

An inverse gas chromatography study of the adsorption of organics on zeolite and zeolite/iron oxyhydroxide composite at the infinite and finite surface coverage

Lazarević, Slavica S.; Mihajlović-Kostić, Marija T.; Janković-Častvan, Ivona M.; Janaćković, Đorđe T.; Petrović, Rada D.

(Serbian Chemical Society, 2024)

TY  - JOUR
AU  - Lazarević, Slavica S.
AU  - Mihajlović-Kostić, Marija T.
AU  - Janković-Častvan, Ivona M.
AU  - Janaćković, Đorđe T.
AU  - Petrović, Rada D.
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7434
AB  - The surfaces of natural (NZ) and zeolite/iron oxyhydroxide composite (ZFe) samples were analysed by means of inverse gas chromatography (IGC) using the adsorption data of organic non-polar and polar probes, in the infinite and finite-dilution regimes, in the temperature range 483-513 K. The dispersive components of the free energy of adsorption, γS, determined by the Gray method, decreased with increasing temperature for both zeolites. The specific interactions were characterised by the specific free adsorption energy change, ΔGaS, the specific enthalpy change of adsorption, ΔHaS, as well as the donor and acceptor interaction parameters (KA, KD) and the basic character of the NZ and ZFe was evidenced. The adsorption isotherms of n-hexane, benzene, chloroform and tetrahydrofuran (THF) were determined under finite surface coverage and used to estimate the specific surface area and the adsorption energy distribution. The adsorption capacity of the ZFe was higher than for NZ for all the investigated adsorbates. The specific surface areas and pore size distributions were also determined using nitrogen adsorption-desorption isotherms, i.e., the BET method. It was observed that the nature of the adsorbate and the properties of the solid surface of the initial and modified samples governed the uptake of adsorbates.
AB  - Применом инверзне гасне хроматографије, испитана су површинска својства природног зеолита (NZ) и композита зеолита и гвожђе-оксихидроксида (ZFe), коришћењем поларних и неполарних проба у условима нулте и коначне прекривености у температурном опсегу 483–513 K. Вредности дисперзивне компоненте слободне енергије адсорпције, γS, одређене методом Греја, опадају са порастом температуре за оба зеолита. Одређивањем промене специфичне слободне енергије адсорпције, ΔGa S, и промене специфичне енталпије адсорпције, ΔHa S, које одговарају кисело/базним интеракцијама на чврстој површини, одређени су и акцепторски и донорски параметри (KА и KD) на основу којих је утврђено да су површине узорака NZ и ZFe базног карактера. На основу добијених адсорпционих изотерми за n-хексан, бензен, хлороформ и тетрахидрофуран, применом инверзне гасне хроматографије у условима коначне прекривености, израчунате су вредности специфичне површине као и расподела адсорпционе енергије. Капацитет адсорпције узорка ZFe је био већи у односу на капацитета узорка NZ, за све испитане адсорбенте. Специфична површина узорака као и расподела величине мезопора одређени су применом адсорпионе/десорпционе изотерме за гасовити азот, односно применом BET методе. Закључено је да су природа адсорбата и површинска својства адсорбената главни фактори који одређују капацитет адсорпције.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - An inverse gas chromatography study of the adsorption of organics on zeolite and zeolite/iron oxyhydroxide composite at the infinite and finite surface coverage
T1  - Примена инверзне гасне хроматографије при нултој и коначној прекривености за испитивање адсорпције органских мoлекула на зеолиту и композиту зеолита и гвожђе-оксихидроксида
EP  - 397
IS  - 3
SP  - 383
VL  - 89
DO  - 10.2298/JSC230908093L
ER  - 
@article{
author = "Lazarević, Slavica S. and Mihajlović-Kostić, Marija T. and Janković-Častvan, Ivona M. and Janaćković, Đorđe T. and Petrović, Rada D.",
year = "2024",
abstract = "The surfaces of natural (NZ) and zeolite/iron oxyhydroxide composite (ZFe) samples were analysed by means of inverse gas chromatography (IGC) using the adsorption data of organic non-polar and polar probes, in the infinite and finite-dilution regimes, in the temperature range 483-513 K. The dispersive components of the free energy of adsorption, γS, determined by the Gray method, decreased with increasing temperature for both zeolites. The specific interactions were characterised by the specific free adsorption energy change, ΔGaS, the specific enthalpy change of adsorption, ΔHaS, as well as the donor and acceptor interaction parameters (KA, KD) and the basic character of the NZ and ZFe was evidenced. The adsorption isotherms of n-hexane, benzene, chloroform and tetrahydrofuran (THF) were determined under finite surface coverage and used to estimate the specific surface area and the adsorption energy distribution. The adsorption capacity of the ZFe was higher than for NZ for all the investigated adsorbates. The specific surface areas and pore size distributions were also determined using nitrogen adsorption-desorption isotherms, i.e., the BET method. It was observed that the nature of the adsorbate and the properties of the solid surface of the initial and modified samples governed the uptake of adsorbates., Применом инверзне гасне хроматографије, испитана су површинска својства природног зеолита (NZ) и композита зеолита и гвожђе-оксихидроксида (ZFe), коришћењем поларних и неполарних проба у условима нулте и коначне прекривености у температурном опсегу 483–513 K. Вредности дисперзивне компоненте слободне енергије адсорпције, γS, одређене методом Греја, опадају са порастом температуре за оба зеолита. Одређивањем промене специфичне слободне енергије адсорпције, ΔGa S, и промене специфичне енталпије адсорпције, ΔHa S, које одговарају кисело/базним интеракцијама на чврстој површини, одређени су и акцепторски и донорски параметри (KА и KD) на основу којих је утврђено да су површине узорака NZ и ZFe базног карактера. На основу добијених адсорпционих изотерми за n-хексан, бензен, хлороформ и тетрахидрофуран, применом инверзне гасне хроматографије у условима коначне прекривености, израчунате су вредности специфичне површине као и расподела адсорпционе енергије. Капацитет адсорпције узорка ZFe је био већи у односу на капацитета узорка NZ, за све испитане адсорбенте. Специфична површина узорака као и расподела величине мезопора одређени су применом адсорпионе/десорпционе изотерме за гасовити азот, односно применом BET методе. Закључено је да су природа адсорбата и површинска својства адсорбената главни фактори који одређују капацитет адсорпције.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "An inverse gas chromatography study of the adsorption of organics on zeolite and zeolite/iron oxyhydroxide composite at the infinite and finite surface coverage, Примена инверзне гасне хроматографије при нултој и коначној прекривености за испитивање адсорпције органских мoлекула на зеолиту и композиту зеолита и гвожђе-оксихидроксида",
pages = "397-383",
number = "3",
volume = "89",
doi = "10.2298/JSC230908093L"
}
Lazarević, S. S., Mihajlović-Kostić, M. T., Janković-Častvan, I. M., Janaćković, Đ. T.,& Petrović, R. D.. (2024). An inverse gas chromatography study of the adsorption of organics on zeolite and zeolite/iron oxyhydroxide composite at the infinite and finite surface coverage. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 89(3), 383-397.
https://doi.org/10.2298/JSC230908093L
Lazarević SS, Mihajlović-Kostić MT, Janković-Častvan IM, Janaćković ĐT, Petrović RD. An inverse gas chromatography study of the adsorption of organics on zeolite and zeolite/iron oxyhydroxide composite at the infinite and finite surface coverage. in Journal of the Serbian Chemical Society. 2024;89(3):383-397.
doi:10.2298/JSC230908093L .
Lazarević, Slavica S., Mihajlović-Kostić, Marija T., Janković-Častvan, Ivona M., Janaćković, Đorđe T., Petrović, Rada D., "An inverse gas chromatography study of the adsorption of organics on zeolite and zeolite/iron oxyhydroxide composite at the infinite and finite surface coverage" in Journal of the Serbian Chemical Society, 89, no. 3 (2024):383-397,
https://doi.org/10.2298/JSC230908093L . .

The current trend in innovative bioactive materials for dental and orthopedic applications

Veljović, Đorđe; Janaćković, Đorđe; Petrović, Rada; Radovanović, Željko; Ugrinović, Vukašin; Matić, Tamara; Milivojević, Marija

(Savez hemijskih inženjera Srbije, 2024)

TY  - CONF
AU  - Veljović, Đorđe
AU  - Janaćković, Đorđe
AU  - Petrović, Rada
AU  - Radovanović, Željko
AU  - Ugrinović, Vukašin
AU  - Matić, Tamara
AU  - Milivojević, Marija
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7439
AB  - Bioactive  materials  for  the repairand  regeneration  of human bone  tissue,  as  well  as  for  the restoration  of  teeth,  are  the focus of  numerous  studies  in  the  field  of  biomaterials.Orthopaedic  surgeons  anticipate that  bioactive materialshave  the  potential  to  facilitate  the  formation  of  new  apatite-like  crystals  upon  contact  with body fluids, promoting the development of new bone tissue under in vivoconditions. On the other hand, dentists expect that bioactive  materials  have  the  potential  for  remineralization  of  partially  demineralized  enamel  and  dentin. In  the preceding years, the Bioceramic Materials Group, founded within the Department of Inorganic Chemical Technology at the  Faculty  of  Technology  and  Metallurgy,  University  of  Belgrade (FTM-UB),  conducted  extensive  research  on  the advancement of bioactive and biocompatible materials with adequate mechanical properties, designed for applicationin dentistry, orthopaedics, maxillofacial surgery, and also bone tissue engineering(BTE).
PB  - Savez hemijskih inženjera Srbije
C3  - Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
T1  - The current trend in innovative bioactive materials for dental and orthopedic applications
IS  - 1S
SP  - 37
VL  - 78
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7439
ER  - 
@conference{
author = "Veljović, Đorđe and Janaćković, Đorđe and Petrović, Rada and Radovanović, Željko and Ugrinović, Vukašin and Matić, Tamara and Milivojević, Marija",
year = "2024",
abstract = "Bioactive  materials  for  the repairand  regeneration  of human bone  tissue,  as  well  as  for  the restoration  of  teeth,  are  the focus of  numerous  studies  in  the  field  of  biomaterials.Orthopaedic  surgeons  anticipate that  bioactive materialshave  the  potential  to  facilitate  the  formation  of  new  apatite-like  crystals  upon  contact  with body fluids, promoting the development of new bone tissue under in vivoconditions. On the other hand, dentists expect that bioactive  materials  have  the  potential  for  remineralization  of  partially  demineralized  enamel  and  dentin. In  the preceding years, the Bioceramic Materials Group, founded within the Department of Inorganic Chemical Technology at the  Faculty  of  Technology  and  Metallurgy,  University  of  Belgrade (FTM-UB),  conducted  extensive  research  on  the advancement of bioactive and biocompatible materials with adequate mechanical properties, designed for applicationin dentistry, orthopaedics, maxillofacial surgery, and also bone tissue engineering(BTE).",
publisher = "Savez hemijskih inženjera Srbije",
journal = "Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts",
title = "The current trend in innovative bioactive materials for dental and orthopedic applications",
number = "1S",
pages = "37",
volume = "78",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7439"
}
Veljović, Đ., Janaćković, Đ., Petrović, R., Radovanović, Ž., Ugrinović, V., Matić, T.,& Milivojević, M.. (2024). The current trend in innovative bioactive materials for dental and orthopedic applications. in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
Savez hemijskih inženjera Srbije., 78(1S), 37.
https://hdl.handle.net/21.15107/rcub_technorep_7439
Veljović Đ, Janaćković Đ, Petrović R, Radovanović Ž, Ugrinović V, Matić T, Milivojević M. The current trend in innovative bioactive materials for dental and orthopedic applications. in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts. 2024;78(1S):37.
https://hdl.handle.net/21.15107/rcub_technorep_7439 .
Veljović, Đorđe, Janaćković, Đorđe, Petrović, Rada, Radovanović, Željko, Ugrinović, Vukašin, Matić, Tamara, Milivojević, Marija, "The current trend in innovative bioactive materials for dental and orthopedic applications" in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts, 78, no. 1S (2024):37,
https://hdl.handle.net/21.15107/rcub_technorep_7439 .

Selection of processing parameters for the integrated supercritical CO2 extraction from green tea leaves and extract impregnation onto starch-chitosan based films

Milovanović, Stoja; Lukić, Ivana; Krgović, Nemanja; Tadić, Vanja; Radovanović, Željko; Tyśkiewicz, Katarzyna; Konkol, Marcin

(Elsevier B.V., 2024)

TY  - JOUR
AU  - Milovanović, Stoja
AU  - Lukić, Ivana
AU  - Krgović, Nemanja
AU  - Tadić, Vanja
AU  - Radovanović, Željko
AU  - Tyśkiewicz, Katarzyna
AU  - Konkol, Marcin
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7140
AB  - The study aimed toward the development of biocompatible and biodegradable polymeric films (starch-chitosan and starch-chitosan-cyclodextrin) with biologically valuable green tea leaf extract using an environmentally friendly integrated process of supercritical fluid extraction (SFE) and supercritical solvent impregnation (SSI). The SFE-SSI process parameters were selected through the initial estimation of the SFE parameters effect (temperatures 35 and 70 °C and the addition of co-solvents ethanol, ethanol/water, and water). The present early-stage work showed that an increase in temperature increased extraction yield (from 0.9 to 4.2%) and caffeine content while it decreased polyphenolic and pigment content as well as antioxidant activity and extract loading onto films (from 7.1 to 0.1%). The addition of co-solvents to sc-CO2 had an adverse effect on extract yield, composition, and loading. The highest recorded total phenolic, flavonoid, chlorophyll A, and caffeine content in extracts were 136.5 mg GE/g, 22.7 mg RE/g, 8.1 mg/g, and 460.0 mg/g, respectively.
PB  - Elsevier B.V.
T2  - Journal of Supercritical Fluids
T1  - Selection of processing parameters for the integrated supercritical CO2 extraction from green tea leaves and extract impregnation onto starch-chitosan based films
SP  - 106163
VL  - 206
DO  - 10.1016/j.supflu.2023.106163
ER  - 
@article{
author = "Milovanović, Stoja and Lukić, Ivana and Krgović, Nemanja and Tadić, Vanja and Radovanović, Željko and Tyśkiewicz, Katarzyna and Konkol, Marcin",
year = "2024",
abstract = "The study aimed toward the development of biocompatible and biodegradable polymeric films (starch-chitosan and starch-chitosan-cyclodextrin) with biologically valuable green tea leaf extract using an environmentally friendly integrated process of supercritical fluid extraction (SFE) and supercritical solvent impregnation (SSI). The SFE-SSI process parameters were selected through the initial estimation of the SFE parameters effect (temperatures 35 and 70 °C and the addition of co-solvents ethanol, ethanol/water, and water). The present early-stage work showed that an increase in temperature increased extraction yield (from 0.9 to 4.2%) and caffeine content while it decreased polyphenolic and pigment content as well as antioxidant activity and extract loading onto films (from 7.1 to 0.1%). The addition of co-solvents to sc-CO2 had an adverse effect on extract yield, composition, and loading. The highest recorded total phenolic, flavonoid, chlorophyll A, and caffeine content in extracts were 136.5 mg GE/g, 22.7 mg RE/g, 8.1 mg/g, and 460.0 mg/g, respectively.",
publisher = "Elsevier B.V.",
journal = "Journal of Supercritical Fluids",
title = "Selection of processing parameters for the integrated supercritical CO2 extraction from green tea leaves and extract impregnation onto starch-chitosan based films",
pages = "106163",
volume = "206",
doi = "10.1016/j.supflu.2023.106163"
}
Milovanović, S., Lukić, I., Krgović, N., Tadić, V., Radovanović, Ž., Tyśkiewicz, K.,& Konkol, M.. (2024). Selection of processing parameters for the integrated supercritical CO2 extraction from green tea leaves and extract impregnation onto starch-chitosan based films. in Journal of Supercritical Fluids
Elsevier B.V.., 206, 106163.
https://doi.org/10.1016/j.supflu.2023.106163
Milovanović S, Lukić I, Krgović N, Tadić V, Radovanović Ž, Tyśkiewicz K, Konkol M. Selection of processing parameters for the integrated supercritical CO2 extraction from green tea leaves and extract impregnation onto starch-chitosan based films. in Journal of Supercritical Fluids. 2024;206:106163.
doi:10.1016/j.supflu.2023.106163 .
Milovanović, Stoja, Lukić, Ivana, Krgović, Nemanja, Tadić, Vanja, Radovanović, Željko, Tyśkiewicz, Katarzyna, Konkol, Marcin, "Selection of processing parameters for the integrated supercritical CO2 extraction from green tea leaves and extract impregnation onto starch-chitosan based films" in Journal of Supercritical Fluids, 206 (2024):106163,
https://doi.org/10.1016/j.supflu.2023.106163 . .
1
1
1

Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations

Matić, Tamara; Ležaja Zebić, Maja; Miletić, Vesna; Trajković, Isaak; Milošević, Miloš; Racić, Aleksandar; Veljović, Đorđe

(John Wiley and Sons Inc., 2024)

TY  - JOUR
AU  - Matić, Tamara
AU  - Ležaja Zebić, Maja
AU  - Miletić, Vesna
AU  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Racić, Aleksandar
AU  - Veljović, Đorđe
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6659
AB  - This study aimed to (1) comparatively analyze properties of Sr- and Mg-substituted
hydroxyapatite (HAP)-based dental inserts; (2) evaluate insert bonding to restorative
materials, and (3) evaluate the effect of doped HAP inserts on fracture resistance
(FR) of human molars with large occlusal restorations. By ion-doping with Sr or Mg,
3 insert types were obtained and characterized using XRD, SEM, Vickers hardness and
fracture toughness. Shear bond strength (SBS) was determined between acid etched or
unetched inserts and following materials: Maxcem cement (Kerr); Filtek Z250
(3M) bonded with Single Bond Universal (SBU; 3M) or Clearfil Universal (Cf; Kuraray).
Modified Class I cavities were prepared in 16 intact molars and restored using insert
+ composite or composite only (control) (n = 8/group). FR of restored molars was
determined by static load until fracture upon thermal cycling. Fracture toughness was
similar between Sr/Mg-doped inserts (0.94–1.04 MPam 1/2 p = .429). Mg-doped
inserts showed greater hardness (range 4.78–5.15 GPa) than Sr6 inserts (3.74
± 0.31 GPa; p < .05). SBS for SBU and Cf adhesives (range 7.19–15.93 MPa) was higher
than for Maxcem (range 3.07–5.95 MPa) (p < .05). There was no significant difference
in FR between molars restored with insert-containing and control restorations (3.00
± 0.30 kN and 3.22 ± 0.42 kN, respectively; p > .05). HAP-based inserts doped with
Mg/Sr had different composition and mechanical properties. Adhesive bonding to
inserts resulted in greater bond strength than cementation, which may be improved by
insert acid-etching. Ion-doped HAP inserts did not affect FR of restored molars. In conclusion,
HAP-based dental inserts may potentially replace dentin in large cavities, without
affecting fracture resistance of restored teeth.
PB  - John Wiley and Sons Inc.
T2  - Journal of Biomedical Materials Research Part B: Applied Biomaterials
T1  - Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations
IS  - 1
SP  - e35331
VL  - 112
DO  - 10.1002/jbm.b.35331
ER  - 
@article{
author = "Matić, Tamara and Ležaja Zebić, Maja and Miletić, Vesna and Trajković, Isaak and Milošević, Miloš and Racić, Aleksandar and Veljović, Đorđe",
year = "2024",
abstract = "This study aimed to (1) comparatively analyze properties of Sr- and Mg-substituted
hydroxyapatite (HAP)-based dental inserts; (2) evaluate insert bonding to restorative
materials, and (3) evaluate the effect of doped HAP inserts on fracture resistance
(FR) of human molars with large occlusal restorations. By ion-doping with Sr or Mg,
3 insert types were obtained and characterized using XRD, SEM, Vickers hardness and
fracture toughness. Shear bond strength (SBS) was determined between acid etched or
unetched inserts and following materials: Maxcem cement (Kerr); Filtek Z250
(3M) bonded with Single Bond Universal (SBU; 3M) or Clearfil Universal (Cf; Kuraray).
Modified Class I cavities were prepared in 16 intact molars and restored using insert
+ composite or composite only (control) (n = 8/group). FR of restored molars was
determined by static load until fracture upon thermal cycling. Fracture toughness was
similar between Sr/Mg-doped inserts (0.94–1.04 MPam 1/2 p = .429). Mg-doped
inserts showed greater hardness (range 4.78–5.15 GPa) than Sr6 inserts (3.74
± 0.31 GPa; p < .05). SBS for SBU and Cf adhesives (range 7.19–15.93 MPa) was higher
than for Maxcem (range 3.07–5.95 MPa) (p < .05). There was no significant difference
in FR between molars restored with insert-containing and control restorations (3.00
± 0.30 kN and 3.22 ± 0.42 kN, respectively; p > .05). HAP-based inserts doped with
Mg/Sr had different composition and mechanical properties. Adhesive bonding to
inserts resulted in greater bond strength than cementation, which may be improved by
insert acid-etching. Ion-doped HAP inserts did not affect FR of restored molars. In conclusion,
HAP-based dental inserts may potentially replace dentin in large cavities, without
affecting fracture resistance of restored teeth.",
publisher = "John Wiley and Sons Inc.",
journal = "Journal of Biomedical Materials Research Part B: Applied Biomaterials",
title = "Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations",
number = "1",
pages = "e35331",
volume = "112",
doi = "10.1002/jbm.b.35331"
}
Matić, T., Ležaja Zebić, M., Miletić, V., Trajković, I., Milošević, M., Racić, A.,& Veljović, Đ.. (2024). Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations. in Journal of Biomedical Materials Research Part B: Applied Biomaterials
John Wiley and Sons Inc.., 112(1), e35331.
https://doi.org/10.1002/jbm.b.35331
Matić T, Ležaja Zebić M, Miletić V, Trajković I, Milošević M, Racić A, Veljović Đ. Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations. in Journal of Biomedical Materials Research Part B: Applied Biomaterials. 2024;112(1):e35331.
doi:10.1002/jbm.b.35331 .
Matić, Tamara, Ležaja Zebić, Maja, Miletić, Vesna, Trajković, Isaak, Milošević, Miloš, Racić, Aleksandar, Veljović, Đorđe, "Hydroxyapatite-based dental inserts: microstructure, mechanical properties, bonding efficiency and fracture resistance of molars with occlusal restorations" in Journal of Biomedical Materials Research Part B: Applied Biomaterials, 112, no. 1 (2024):e35331,
https://doi.org/10.1002/jbm.b.35331 . .
2

Zn2+/Poly(2-Hydroxyethyl Acrylate/Itaconic Acid) Hydrogels as Potential Antibacterial Wound Dressings

Vuković, Jovana S.; Babić Radić, Marija M.; Trifunović, Saša B.; Koch, Thomas; Perić-Grujić, Aleksandra A.; Vojnović, Sandra; Tomić, Simonida Lj.

(John Wiley and Sons Inc., 2024)

TY  - JOUR
AU  - Vuković, Jovana S.
AU  - Babić Radić, Marija M.
AU  - Trifunović, Saša B.
AU  - Koch, Thomas
AU  - Perić-Grujić, Aleksandra A.
AU  - Vojnović, Sandra
AU  - Tomić, Simonida Lj.
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6759
AB  - Antibacterial hydrogels, as an advanced approach, can create optimal conditions for wound healing, even in the fight against stubborn and difficult-to-treat wound infections. Interestingly, pH is an often neglected clinical parameter, although it has a significant impact on the wound healing process. At different stages of wound healing, the pH in the wound bed changes from slightly alkaline to neutral to acidic. To develop novel pH-sensitive antibacterial hydrogel dressings, Zn2+-loaded poly(2-hydroxyethyl acrylate/itaconic acid) hydrogels are synthesized. The hydrogels exhibit pH-sensitive swelling in the physiologically relevant pH range, with a pronounced swelling ability at neutral pH. The controlled release of Zn2+ occurs in a buffer of pH 7.40 at 37 °C. The liquid transport mechanism and release kinetics are evaluated using the specific kinetic models of Ritger-Peppas and Peppas-Sahlin. The effect of Zn2+ on structural, thermal, swelling, cytocompatibility, and antibacterial properties is evaluated by Fourier transform infrared spectroscopy, differential scanning calorimetry, swelling studies, MTT, and antibacterial tests. The hydrogels show excellent antibacterial activity against Escherichia coli. The research opens new perspectives for efficient wound healing management, and the extension of the study will be orchestrated by optimising the hydrogel composition to achieve improved performance.
PB  - John Wiley and Sons Inc.
T2  - Macromolecular Chemistry and Physics
T1  - Zn2+/Poly(2-Hydroxyethyl Acrylate/Itaconic Acid) Hydrogels as Potential Antibacterial Wound Dressings
IS  - 1
SP  - 2300310
VL  - 225
DO  - 10.1002/macp.202300310
ER  - 
@article{
author = "Vuković, Jovana S. and Babić Radić, Marija M. and Trifunović, Saša B. and Koch, Thomas and Perić-Grujić, Aleksandra A. and Vojnović, Sandra and Tomić, Simonida Lj.",
year = "2024",
abstract = "Antibacterial hydrogels, as an advanced approach, can create optimal conditions for wound healing, even in the fight against stubborn and difficult-to-treat wound infections. Interestingly, pH is an often neglected clinical parameter, although it has a significant impact on the wound healing process. At different stages of wound healing, the pH in the wound bed changes from slightly alkaline to neutral to acidic. To develop novel pH-sensitive antibacterial hydrogel dressings, Zn2+-loaded poly(2-hydroxyethyl acrylate/itaconic acid) hydrogels are synthesized. The hydrogels exhibit pH-sensitive swelling in the physiologically relevant pH range, with a pronounced swelling ability at neutral pH. The controlled release of Zn2+ occurs in a buffer of pH 7.40 at 37 °C. The liquid transport mechanism and release kinetics are evaluated using the specific kinetic models of Ritger-Peppas and Peppas-Sahlin. The effect of Zn2+ on structural, thermal, swelling, cytocompatibility, and antibacterial properties is evaluated by Fourier transform infrared spectroscopy, differential scanning calorimetry, swelling studies, MTT, and antibacterial tests. The hydrogels show excellent antibacterial activity against Escherichia coli. The research opens new perspectives for efficient wound healing management, and the extension of the study will be orchestrated by optimising the hydrogel composition to achieve improved performance.",
publisher = "John Wiley and Sons Inc.",
journal = "Macromolecular Chemistry and Physics",
title = "Zn2+/Poly(2-Hydroxyethyl Acrylate/Itaconic Acid) Hydrogels as Potential Antibacterial Wound Dressings",
number = "1",
pages = "2300310",
volume = "225",
doi = "10.1002/macp.202300310"
}
Vuković, J. S., Babić Radić, M. M., Trifunović, S. B., Koch, T., Perić-Grujić, A. A., Vojnović, S.,& Tomić, S. Lj.. (2024). Zn2+/Poly(2-Hydroxyethyl Acrylate/Itaconic Acid) Hydrogels as Potential Antibacterial Wound Dressings. in Macromolecular Chemistry and Physics
John Wiley and Sons Inc.., 225(1), 2300310.
https://doi.org/10.1002/macp.202300310
Vuković JS, Babić Radić MM, Trifunović SB, Koch T, Perić-Grujić AA, Vojnović S, Tomić SL. Zn2+/Poly(2-Hydroxyethyl Acrylate/Itaconic Acid) Hydrogels as Potential Antibacterial Wound Dressings. in Macromolecular Chemistry and Physics. 2024;225(1):2300310.
doi:10.1002/macp.202300310 .
Vuković, Jovana S., Babić Radić, Marija M., Trifunović, Saša B., Koch, Thomas, Perić-Grujić, Aleksandra A., Vojnović, Sandra, Tomić, Simonida Lj., "Zn2+/Poly(2-Hydroxyethyl Acrylate/Itaconic Acid) Hydrogels as Potential Antibacterial Wound Dressings" in Macromolecular Chemistry and Physics, 225, no. 1 (2024):2300310,
https://doi.org/10.1002/macp.202300310 . .

Tehnološki postupak ekstrakcije iz smilja i impregnacije čvrstih nosača ekstraktom pomoću natkritičnog ugljenik(IV)-oksida

Maksimović, Svetolik; Tadić, Vanja; Žižović, Irena

(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2024)


                                            

                                            
Maksimović, S., Tadić, V.,& Žižović, I.. (2024). Tehnološki postupak ekstrakcije iz smilja i impregnacije čvrstih nosača ekstraktom pomoću natkritičnog ugljenik(IV)-oksida. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_technorep_7480
Maksimović S, Tadić V, Žižović I. Tehnološki postupak ekstrakcije iz smilja i impregnacije čvrstih nosača ekstraktom pomoću natkritičnog ugljenik(IV)-oksida. 2024;.
https://hdl.handle.net/21.15107/rcub_technorep_7480 .
Maksimović, Svetolik, Tadić, Vanja, Žižović, Irena, "Tehnološki postupak ekstrakcije iz smilja i impregnacije čvrstih nosača ekstraktom pomoću natkritičnog ugljenik(IV)-oksida" (2024),
https://hdl.handle.net/21.15107/rcub_technorep_7480 .

Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent

Ljubić, Verica; Perendija, Jovana; Cvetković, Slobodan; Rogan, Jelena; Trivunac, Katarina; Stojanović, Marijana; Popović, Mina

(Springer, 2024)

TY  - JOUR
AU  - Ljubić, Verica
AU  - Perendija, Jovana
AU  - Cvetković, Slobodan
AU  - Rogan, Jelena
AU  - Trivunac, Katarina
AU  - Stojanović, Marijana
AU  - Popović, Mina
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6609
AB  - Nowadays, exopolysaccharides (EPS) produced from bacterial cells are manufactured for their use in different industries in the world, mainly in the food, pharmaceutical, and wastewater industries. The characteristics of EPS, such as being biodegradable, safe, high adsorption capacity, and reusable, make them significant and potential applications in the purification of contaminated water of heavy metals. In this study, the possible application in biosorption Ni2+ ions from contaminated water was assessed using this exopolysaccharide as a biosorbent. The new exopolysaccharide from the bacterial strain K. oxytoca J7 was extracted, isolated, and characterized using SEM, FTIR, XRD, TGA/DTG, and MALDI-TOF MS analysis. Likewise, the cytotoxic activity was performed for EPS from K. oxytoca J7 strain. The aim of this study was to investigate the possible application of non-toxic exopolysaccharide in the purification of contaminated water by removing Ni2+ ions. The results obtained from the biosorption study showed that the Langmuir model is well suited to describe the adsorption process of Ni2+ ions by EPS from K. oxytoca J7, with a maximum adsorption capacity of 269.97 mg g–1. The importance of this study is the possible use of natural nontoxic exopolysaccharide extracted from the pathogen microorganism, K. oxytoca J7, for the removal of Ni2+ ions from the contaminated water.
PB  - Springer
T2  - Journal of Polymers and the Environment
T1  - Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent
EP  - 1121
SP  - 1105
VL  - 32
DO  - 10.1007/s10924-023-03031-5
ER  - 
@article{
author = "Ljubić, Verica and Perendija, Jovana and Cvetković, Slobodan and Rogan, Jelena and Trivunac, Katarina and Stojanović, Marijana and Popović, Mina",
year = "2024",
abstract = "Nowadays, exopolysaccharides (EPS) produced from bacterial cells are manufactured for their use in different industries in the world, mainly in the food, pharmaceutical, and wastewater industries. The characteristics of EPS, such as being biodegradable, safe, high adsorption capacity, and reusable, make them significant and potential applications in the purification of contaminated water of heavy metals. In this study, the possible application in biosorption Ni2+ ions from contaminated water was assessed using this exopolysaccharide as a biosorbent. The new exopolysaccharide from the bacterial strain K. oxytoca J7 was extracted, isolated, and characterized using SEM, FTIR, XRD, TGA/DTG, and MALDI-TOF MS analysis. Likewise, the cytotoxic activity was performed for EPS from K. oxytoca J7 strain. The aim of this study was to investigate the possible application of non-toxic exopolysaccharide in the purification of contaminated water by removing Ni2+ ions. The results obtained from the biosorption study showed that the Langmuir model is well suited to describe the adsorption process of Ni2+ ions by EPS from K. oxytoca J7, with a maximum adsorption capacity of 269.97 mg g–1. The importance of this study is the possible use of natural nontoxic exopolysaccharide extracted from the pathogen microorganism, K. oxytoca J7, for the removal of Ni2+ ions from the contaminated water.",
publisher = "Springer",
journal = "Journal of Polymers and the Environment",
title = "Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent",
pages = "1121-1105",
volume = "32",
doi = "10.1007/s10924-023-03031-5"
}
Ljubić, V., Perendija, J., Cvetković, S., Rogan, J., Trivunac, K., Stojanović, M.,& Popović, M.. (2024). Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent. in Journal of Polymers and the Environment
Springer., 32, 1105-1121.
https://doi.org/10.1007/s10924-023-03031-5
Ljubić V, Perendija J, Cvetković S, Rogan J, Trivunac K, Stojanović M, Popović M. Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent. in Journal of Polymers and the Environment. 2024;32:1105-1121.
doi:10.1007/s10924-023-03031-5 .
Ljubić, Verica, Perendija, Jovana, Cvetković, Slobodan, Rogan, Jelena, Trivunac, Katarina, Stojanović, Marijana, Popović, Mina, "Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent" in Journal of Polymers and the Environment, 32 (2024):1105-1121,
https://doi.org/10.1007/s10924-023-03031-5 . .
2
1

A step towards tuning the jute fiber structure and properties by employing sodium periodate oxidation and coating with alginate

Ivanovska, Aleksandra; Milošević, Marija; Lađarević, Jelena; Jankoska, Maja; Matić, Tamara; Svirčev, Zorica; Kostić, Mirjana

(Elsevier B.V., 2024)

TY  - JOUR
AU  - Ivanovska, Aleksandra
AU  - Milošević, Marija
AU  - Lađarević, Jelena
AU  - Jankoska, Maja
AU  - Matić, Tamara
AU  - Svirčev, Zorica
AU  - Kostić, Mirjana
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6978
AB  - This paper outlines a novel simple protocol for tuning the structure and properties of jute using sodium periodate (NaIO4) oxidation and coating with alginate. When compared to the raw jute, fabrics oxidized with a 0.2 or 0.4 % NaIO4 solution for 30–120 min exhibited an increased aldehyde group content (0.185 vs. 0.239–0.398 mmol/g), a significantly increased negative zeta potential (from − 8.57 down to − 20.12 mV), a slight disruption of fiber crystallinity, 15.1–37.5 % and 27.9–49.8 % lower fabric maximum force and stiffness, respectively. Owing to the removal of hydrophobic surface barrier, decreased crystallinity index and the presence of micropores on the
fabrics' surfaces, oxidized fabrics have a 22.3–29.6 % improved ability for moisture sorption compared to raw fabric. Oxidized fabrics characterized by very long wetting times and excellent antioxidant activities (> 98 %), can find applications as hydrophobic packaging materials. To further extend the utilization of jute in biocarpet engineering such as water-binding geo-prebiotic supports, oxidized fabrics were coated with alginate resulting in 7.9–24.9 % higher moisture sorption and 352–660 times lower wetting times than their oxidized counterparts. This modification protocol has never been applied to lignocellulosic fibers and sheds new light on obtaining jute fabrics with tuned structure and properties intended for various applications.
PB  - Elsevier B.V.
T2  - International Journal of Biological Macromolecules
T1  - A step towards tuning the jute fiber structure and properties by employing sodium periodate oxidation and coating with alginate
SP  - 128668
VL  - 257
DO  - 10.1016/j.ijbiomac.2023.128668
ER  - 
@article{
author = "Ivanovska, Aleksandra and Milošević, Marija and Lađarević, Jelena and Jankoska, Maja and Matić, Tamara and Svirčev, Zorica and Kostić, Mirjana",
year = "2024",
abstract = "This paper outlines a novel simple protocol for tuning the structure and properties of jute using sodium periodate (NaIO4) oxidation and coating with alginate. When compared to the raw jute, fabrics oxidized with a 0.2 or 0.4 % NaIO4 solution for 30–120 min exhibited an increased aldehyde group content (0.185 vs. 0.239–0.398 mmol/g), a significantly increased negative zeta potential (from − 8.57 down to − 20.12 mV), a slight disruption of fiber crystallinity, 15.1–37.5 % and 27.9–49.8 % lower fabric maximum force and stiffness, respectively. Owing to the removal of hydrophobic surface barrier, decreased crystallinity index and the presence of micropores on the
fabrics' surfaces, oxidized fabrics have a 22.3–29.6 % improved ability for moisture sorption compared to raw fabric. Oxidized fabrics characterized by very long wetting times and excellent antioxidant activities (> 98 %), can find applications as hydrophobic packaging materials. To further extend the utilization of jute in biocarpet engineering such as water-binding geo-prebiotic supports, oxidized fabrics were coated with alginate resulting in 7.9–24.9 % higher moisture sorption and 352–660 times lower wetting times than their oxidized counterparts. This modification protocol has never been applied to lignocellulosic fibers and sheds new light on obtaining jute fabrics with tuned structure and properties intended for various applications.",
publisher = "Elsevier B.V.",
journal = "International Journal of Biological Macromolecules",
title = "A step towards tuning the jute fiber structure and properties by employing sodium periodate oxidation and coating with alginate",
pages = "128668",
volume = "257",
doi = "10.1016/j.ijbiomac.2023.128668"
}
Ivanovska, A., Milošević, M., Lađarević, J., Jankoska, M., Matić, T., Svirčev, Z.,& Kostić, M.. (2024). A step towards tuning the jute fiber structure and properties by employing sodium periodate oxidation and coating with alginate. in International Journal of Biological Macromolecules
Elsevier B.V.., 257, 128668.
https://doi.org/10.1016/j.ijbiomac.2023.128668
Ivanovska A, Milošević M, Lađarević J, Jankoska M, Matić T, Svirčev Z, Kostić M. A step towards tuning the jute fiber structure and properties by employing sodium periodate oxidation and coating with alginate. in International Journal of Biological Macromolecules. 2024;257:128668.
doi:10.1016/j.ijbiomac.2023.128668 .
Ivanovska, Aleksandra, Milošević, Marija, Lađarević, Jelena, Jankoska, Maja, Matić, Tamara, Svirčev, Zorica, Kostić, Mirjana, "A step towards tuning the jute fiber structure and properties by employing sodium periodate oxidation and coating with alginate" in International Journal of Biological Macromolecules, 257 (2024):128668,
https://doi.org/10.1016/j.ijbiomac.2023.128668 . .
1
1

Reduction of fines in recycled paper white water via cellulase enzymes

Jevtović, Đorđe; Živković, Predrag; Milivojević, Ana; Bezbradica, Dejan; Van Der Auwera, Luc

(North Carolina State University, 2024)

TY  - JOUR
AU  - Jevtović, Đorđe
AU  - Živković, Predrag
AU  - Milivojević, Ana
AU  - Bezbradica, Dejan
AU  - Van Der Auwera, Luc
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6987
AB  - Due to the high wastepaper recyclability and water-loop system closure, packaging paper mills struggle with increased fines, causing runnability issues. Cellulase enzymes are a preferred treatment choice for the improvement of the pulp refining in stock preparation area but are not widely used or easy to introduce in the production process. Different cellulase enzymes were tested, and those with the highest activity were introduced to the white-water (WW) samples with the aim to reduce fines content as potentially new enzyme applications on the paper machine. The first portion of the study involved the development of an experiment model to find and confirm the optimal enzyme process parameters (40 °C, pH 5.7, reaction time 3 h, and 0.18% v/v enzyme addition) for laboratory made white-water. The second portion of the study included turbidity, colloidal charge, flow cytometry (FCM), and chemical oxygen demand (COD) analysis on industrial and laboratory made white-water samples at optimized process parameters. Obtained results corresponded to reduced fines content in white-water samples, which justified commercial usage of cellulase enzymes on recycled paper machine short loop and potentially increased machine runnability without negative influence on wastewater treatment plant.
PB  - North Carolina State University
T2  - BioResources
T1  - Reduction of fines in recycled paper white water via cellulase enzymes
EP  - 655
IS  - 1
SP  - 635
VL  - 19
DO  - 10.15376/biores.19.1.635-655
ER  - 
@article{
author = "Jevtović, Đorđe and Živković, Predrag and Milivojević, Ana and Bezbradica, Dejan and Van Der Auwera, Luc",
year = "2024",
abstract = "Due to the high wastepaper recyclability and water-loop system closure, packaging paper mills struggle with increased fines, causing runnability issues. Cellulase enzymes are a preferred treatment choice for the improvement of the pulp refining in stock preparation area but are not widely used or easy to introduce in the production process. Different cellulase enzymes were tested, and those with the highest activity were introduced to the white-water (WW) samples with the aim to reduce fines content as potentially new enzyme applications on the paper machine. The first portion of the study involved the development of an experiment model to find and confirm the optimal enzyme process parameters (40 °C, pH 5.7, reaction time 3 h, and 0.18% v/v enzyme addition) for laboratory made white-water. The second portion of the study included turbidity, colloidal charge, flow cytometry (FCM), and chemical oxygen demand (COD) analysis on industrial and laboratory made white-water samples at optimized process parameters. Obtained results corresponded to reduced fines content in white-water samples, which justified commercial usage of cellulase enzymes on recycled paper machine short loop and potentially increased machine runnability without negative influence on wastewater treatment plant.",
publisher = "North Carolina State University",
journal = "BioResources",
title = "Reduction of fines in recycled paper white water via cellulase enzymes",
pages = "655-635",
number = "1",
volume = "19",
doi = "10.15376/biores.19.1.635-655"
}
Jevtović, Đ., Živković, P., Milivojević, A., Bezbradica, D.,& Van Der Auwera, L.. (2024). Reduction of fines in recycled paper white water via cellulase enzymes. in BioResources
North Carolina State University., 19(1), 635-655.
https://doi.org/10.15376/biores.19.1.635-655
Jevtović Đ, Živković P, Milivojević A, Bezbradica D, Van Der Auwera L. Reduction of fines in recycled paper white water via cellulase enzymes. in BioResources. 2024;19(1):635-655.
doi:10.15376/biores.19.1.635-655 .
Jevtović, Đorđe, Živković, Predrag, Milivojević, Ana, Bezbradica, Dejan, Van Der Auwera, Luc, "Reduction of fines in recycled paper white water via cellulase enzymes" in BioResources, 19, no. 1 (2024):635-655,
https://doi.org/10.15376/biores.19.1.635-655 . .

Ru–Co alloy coatings electrodeposited on a MAX phase substrate as efficient catalysts for the hydrogen evolution reaction

Kutyła, Dawid; Krstajić Pajić, Mila N.; Lačnjevac, Uroš Č.; Marzec, Mateusz M.; Elezović, Nevenka R.; Żabiński, Piotr

(Elsevier Ltd., 2024)

TY  - JOUR
AU  - Kutyła, Dawid
AU  - Krstajić Pajić, Mila N.
AU  - Lačnjevac, Uroš Č.
AU  - Marzec, Mateusz M.
AU  - Elezović, Nevenka R.
AU  - Żabiński, Piotr
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6992
AB  - This study investigates the structure, electrochemical behavior and hydrogen evolution reaction (HER) performance of electrodeposited Ru–Co alloy coatings. The alloys were prepared from a 0.75 M Co2+ + 0.025 M Ru3+ solution at various potentials ranging from −0.5 to −1.2 V vs. SCE. Results reveal that the Ru and Co deposition processes are interdependent. The deposition of nobler Ru from the mixed metal solution reaches pure diffusion control already at −0.7 V compared to −1.0 V from a single Ru bath. On the other hand, Co deposition is significantly facilitated in the presence of Ru in the solution. Consequently, as the deposition potential changes from −0.6 to −1.0 V, Ru–Co solid solution coatings characterized by a distinct globular morphology are formed, with their Co content increasing from 22.1/7.4 to 70.2/86.1 wt% for the Cu/Ti2AlC MAX phase substrate applied. The alloy catalysts are found to show much better HER activity and stability in alkaline than in acidic solutions. The best Ru–Co@Ti2AlC sample, electrodeposited at −0.6 V, requires an overpotential of only −95 mV to deliver a current density of −100 mA cm−2 in 1 M KOH, thus outperforming most Ru–Co-based HER electrocatalysts reported to date.
PB  - Elsevier Ltd.
T2  - International Journal of Hydrogen Energy
T1  - Ru–Co alloy coatings electrodeposited on a MAX phase substrate as efficient catalysts for the hydrogen evolution reaction
EP  - 40
SP  - 28
VL  - 56
DO  - 10.1016/j.ijhydene.2023.11.296
ER  - 
@article{
author = "Kutyła, Dawid and Krstajić Pajić, Mila N. and Lačnjevac, Uroš Č. and Marzec, Mateusz M. and Elezović, Nevenka R. and Żabiński, Piotr",
year = "2024",
abstract = "This study investigates the structure, electrochemical behavior and hydrogen evolution reaction (HER) performance of electrodeposited Ru–Co alloy coatings. The alloys were prepared from a 0.75 M Co2+ + 0.025 M Ru3+ solution at various potentials ranging from −0.5 to −1.2 V vs. SCE. Results reveal that the Ru and Co deposition processes are interdependent. The deposition of nobler Ru from the mixed metal solution reaches pure diffusion control already at −0.7 V compared to −1.0 V from a single Ru bath. On the other hand, Co deposition is significantly facilitated in the presence of Ru in the solution. Consequently, as the deposition potential changes from −0.6 to −1.0 V, Ru–Co solid solution coatings characterized by a distinct globular morphology are formed, with their Co content increasing from 22.1/7.4 to 70.2/86.1 wt% for the Cu/Ti2AlC MAX phase substrate applied. The alloy catalysts are found to show much better HER activity and stability in alkaline than in acidic solutions. The best Ru–Co@Ti2AlC sample, electrodeposited at −0.6 V, requires an overpotential of only −95 mV to deliver a current density of −100 mA cm−2 in 1 M KOH, thus outperforming most Ru–Co-based HER electrocatalysts reported to date.",
publisher = "Elsevier Ltd.",
journal = "International Journal of Hydrogen Energy",
title = "Ru–Co alloy coatings electrodeposited on a MAX phase substrate as efficient catalysts for the hydrogen evolution reaction",
pages = "40-28",
volume = "56",
doi = "10.1016/j.ijhydene.2023.11.296"
}
Kutyła, D., Krstajić Pajić, M. N., Lačnjevac, U. Č., Marzec, M. M., Elezović, N. R.,& Żabiński, P.. (2024). Ru–Co alloy coatings electrodeposited on a MAX phase substrate as efficient catalysts for the hydrogen evolution reaction. in International Journal of Hydrogen Energy
Elsevier Ltd.., 56, 28-40.
https://doi.org/10.1016/j.ijhydene.2023.11.296
Kutyła D, Krstajić Pajić MN, Lačnjevac UČ, Marzec MM, Elezović NR, Żabiński P. Ru–Co alloy coatings electrodeposited on a MAX phase substrate as efficient catalysts for the hydrogen evolution reaction. in International Journal of Hydrogen Energy. 2024;56:28-40.
doi:10.1016/j.ijhydene.2023.11.296 .
Kutyła, Dawid, Krstajić Pajić, Mila N., Lačnjevac, Uroš Č., Marzec, Mateusz M., Elezović, Nevenka R., Żabiński, Piotr, "Ru–Co alloy coatings electrodeposited on a MAX phase substrate as efficient catalysts for the hydrogen evolution reaction" in International Journal of Hydrogen Energy, 56 (2024):28-40,
https://doi.org/10.1016/j.ijhydene.2023.11.296 . .
1
1

The influence of polycaprolactone content on the surface properties of polyurethane networks

Stefanović, Ivan S.; Džunuzović, Jasna V.; Džunuzović, Enis S.; Ranđelović, Danijela V.

(John Wiley and Sons Inc., 2024)

TY  - JOUR
AU  - Stefanović, Ivan S.
AU  - Džunuzović, Jasna V.
AU  - Džunuzović, Enis S.
AU  - Ranđelović, Danijela V.
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6993
AB  - The aim of this work was to examine the influence of polycaprolactone (PCL) as a soft segment (SS) on the surface properties of polyurethane networks (PUNs). Five PUNs with different SS content (from 10 to 50 wt%) were prepared using Boltorn® aliphatic hyperbranched polyester of the second pseudo generation and isophorone diisocyanate as components of hard segments. The structure, hydrophobicity, wettability, and swelling behavior of these PUNs were investigated. Primarily, the obtained results showed that properties of prepared PUNs strongly depend on the content of SS that is, PCL. It has been established that the increase of SS content reduced the degree of hydrogen bonding in PUNs. Also, the increase of the SS content in PUNs induced appearance of more pronounced microphase separated morphology, better hydrophobicity and non-wetting with diiodomethane. Simultaneously, the increase of the SS content led to the decrease of contact angles with formamide, and surface free energy of the prepared PUNs. These PUNs show good surface properties that are required for their potential application such as coatings.
PB  - John Wiley and Sons Inc.
T2  - Journal of Applied Polymer Science
T1  - The influence of polycaprolactone content on the surface properties of polyurethane networks
IS  - 8
SP  - e54989
VL  - 141
DO  - 10.1002/app.54989
ER  - 
@article{
author = "Stefanović, Ivan S. and Džunuzović, Jasna V. and Džunuzović, Enis S. and Ranđelović, Danijela V.",
year = "2024",
abstract = "The aim of this work was to examine the influence of polycaprolactone (PCL) as a soft segment (SS) on the surface properties of polyurethane networks (PUNs). Five PUNs with different SS content (from 10 to 50 wt%) were prepared using Boltorn® aliphatic hyperbranched polyester of the second pseudo generation and isophorone diisocyanate as components of hard segments. The structure, hydrophobicity, wettability, and swelling behavior of these PUNs were investigated. Primarily, the obtained results showed that properties of prepared PUNs strongly depend on the content of SS that is, PCL. It has been established that the increase of SS content reduced the degree of hydrogen bonding in PUNs. Also, the increase of the SS content in PUNs induced appearance of more pronounced microphase separated morphology, better hydrophobicity and non-wetting with diiodomethane. Simultaneously, the increase of the SS content led to the decrease of contact angles with formamide, and surface free energy of the prepared PUNs. These PUNs show good surface properties that are required for their potential application such as coatings.",
publisher = "John Wiley and Sons Inc.",
journal = "Journal of Applied Polymer Science",
title = "The influence of polycaprolactone content on the surface properties of polyurethane networks",
number = "8",
pages = "e54989",
volume = "141",
doi = "10.1002/app.54989"
}
Stefanović, I. S., Džunuzović, J. V., Džunuzović, E. S.,& Ranđelović, D. V.. (2024). The influence of polycaprolactone content on the surface properties of polyurethane networks. in Journal of Applied Polymer Science
John Wiley and Sons Inc.., 141(8), e54989.
https://doi.org/10.1002/app.54989
Stefanović IS, Džunuzović JV, Džunuzović ES, Ranđelović DV. The influence of polycaprolactone content on the surface properties of polyurethane networks. in Journal of Applied Polymer Science. 2024;141(8):e54989.
doi:10.1002/app.54989 .
Stefanović, Ivan S., Džunuzović, Jasna V., Džunuzović, Enis S., Ranđelović, Danijela V., "The influence of polycaprolactone content on the surface properties of polyurethane networks" in Journal of Applied Polymer Science, 141, no. 8 (2024):e54989,
https://doi.org/10.1002/app.54989 . .

Black cumin essential oil as a valuable source of bioactive compounds: Evaluation of the conventional vs. modern extraction technique

Dimitrijević, Snežana; Milić, Marija; Tadić, Vanja; Maksimović, Svetolik; Filipović, Vladimir; Dimitrijević-Branković, Suzana; Miljković, Miona; Salamon, Ivan

(Elsevier B.V., 2024)

TY  - JOUR
AU  - Dimitrijević, Snežana
AU  - Milić, Marija
AU  - Tadić, Vanja
AU  - Maksimović, Svetolik
AU  - Filipović, Vladimir
AU  - Dimitrijević-Branković, Suzana
AU  - Miljković, Miona
AU  - Salamon, Ivan
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7036
AB  - Within this investigation, the effect of conventional and sophisticated extraction method was evaluated on the chemical composition of black cumin seeds (Nigella sativa L.) essential oils and their bioactive characteristics. Soxhlet extraction at 60 °C by hexane (SEH) and petroleum ether (SEP) was adopted as traditionally used technique, while the supercritical extraction with CO2 (SFE), under the pressure of 10 MPa and temperature of 40 °C, was performed as a modern method, expected to overcome the drawbacks of the conventional solvent extraction. The results showed that SFE enabled up to ten times higher extraction yields, compared to essential oils derived after Soxhlet extraction, however, the bioactive compounds content, such as polyphenols, flavonoids and carotenoids, were extracted in higher quantities in the oil from Soxhlet extraction performance. Thereby, the strongest antioxidant agent was found to be the essential oil obtained from SEP, followed by the oil from SFE and oil obtained from SEH, respectively. The GC-MS analysis revealed that the content of thymoquinone was the highest in the essential oil from SEP (69.58%), and the obtained values are among the highest reported within the available literature data. Also, this oil sample contained about eleven times higher thymoquinone quantities than the essential oil obtained by SFE, which was mostly constituted of a methyl linoleate, a fatty acid methyl ester of linoleic acid. In addition, the essential oil from SEP exerted a value added antimicrobial properties, where it was found to be particularly effective in suppression of the Gram-positive bacteria growth.
PB  - Elsevier B.V.
T2  - Sustainable Chemistry and Pharmacy
T1  - Black cumin essential oil as a valuable source of bioactive compounds: Evaluation of the conventional vs. modern extraction technique
SP  - 101390
VL  - 37
DO  - 10.1016/j.scp.2023.101390
ER  - 
@article{
author = "Dimitrijević, Snežana and Milić, Marija and Tadić, Vanja and Maksimović, Svetolik and Filipović, Vladimir and Dimitrijević-Branković, Suzana and Miljković, Miona and Salamon, Ivan",
year = "2024",
abstract = "Within this investigation, the effect of conventional and sophisticated extraction method was evaluated on the chemical composition of black cumin seeds (Nigella sativa L.) essential oils and their bioactive characteristics. Soxhlet extraction at 60 °C by hexane (SEH) and petroleum ether (SEP) was adopted as traditionally used technique, while the supercritical extraction with CO2 (SFE), under the pressure of 10 MPa and temperature of 40 °C, was performed as a modern method, expected to overcome the drawbacks of the conventional solvent extraction. The results showed that SFE enabled up to ten times higher extraction yields, compared to essential oils derived after Soxhlet extraction, however, the bioactive compounds content, such as polyphenols, flavonoids and carotenoids, were extracted in higher quantities in the oil from Soxhlet extraction performance. Thereby, the strongest antioxidant agent was found to be the essential oil obtained from SEP, followed by the oil from SFE and oil obtained from SEH, respectively. The GC-MS analysis revealed that the content of thymoquinone was the highest in the essential oil from SEP (69.58%), and the obtained values are among the highest reported within the available literature data. Also, this oil sample contained about eleven times higher thymoquinone quantities than the essential oil obtained by SFE, which was mostly constituted of a methyl linoleate, a fatty acid methyl ester of linoleic acid. In addition, the essential oil from SEP exerted a value added antimicrobial properties, where it was found to be particularly effective in suppression of the Gram-positive bacteria growth.",
publisher = "Elsevier B.V.",
journal = "Sustainable Chemistry and Pharmacy",
title = "Black cumin essential oil as a valuable source of bioactive compounds: Evaluation of the conventional vs. modern extraction technique",
pages = "101390",
volume = "37",
doi = "10.1016/j.scp.2023.101390"
}
Dimitrijević, S., Milić, M., Tadić, V., Maksimović, S., Filipović, V., Dimitrijević-Branković, S., Miljković, M.,& Salamon, I.. (2024). Black cumin essential oil as a valuable source of bioactive compounds: Evaluation of the conventional vs. modern extraction technique. in Sustainable Chemistry and Pharmacy
Elsevier B.V.., 37, 101390.
https://doi.org/10.1016/j.scp.2023.101390
Dimitrijević S, Milić M, Tadić V, Maksimović S, Filipović V, Dimitrijević-Branković S, Miljković M, Salamon I. Black cumin essential oil as a valuable source of bioactive compounds: Evaluation of the conventional vs. modern extraction technique. in Sustainable Chemistry and Pharmacy. 2024;37:101390.
doi:10.1016/j.scp.2023.101390 .
Dimitrijević, Snežana, Milić, Marija, Tadić, Vanja, Maksimović, Svetolik, Filipović, Vladimir, Dimitrijević-Branković, Suzana, Miljković, Miona, Salamon, Ivan, "Black cumin essential oil as a valuable source of bioactive compounds: Evaluation of the conventional vs. modern extraction technique" in Sustainable Chemistry and Pharmacy, 37 (2024):101390,
https://doi.org/10.1016/j.scp.2023.101390 . .

The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash

Savić, Veljko; Dojčinović, Marina; Topalović, Vladimir; Cvijović-Alagić, Ivana; Stojanović, Jovica; Matijašević, Srđan; Grujić, Snežana

(Springer, 2024)

TY  - JOUR
AU  - Savić, Veljko
AU  - Dojčinović, Marina
AU  - Topalović, Vladimir
AU  - Cvijović-Alagić, Ivana
AU  - Stojanović, Jovica
AU  - Matijašević, Srđan
AU  - Grujić, Snežana
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7090
AB  - The incombustible portion of coal that remains after burning is known as bottom or fly ash, and it has a detrimental influence on the environment. One of the possible alternatives for reducing the amount of ash deposited in landfills might be the production of useful glass–ceramic from vitrified fly ash. Glass–ceramic was synthesized using fly ash from the thermal power plant "Nikola Tesla" and fluxing additives. Sinter crystallization of the parent glass resulted in glass ceramics. The glass was created by melting a combination of coal fly ash (CFA), Na2CO3, and CaCO3 at T = 1500 °C and quenching the melt in the air. Glass powders were sintered at temperatures 850 and 900 °C. The resulting glass–ceramics were characterized microstructurally, physically, and mechanically. The cavitation erosion of samples was evaluated. The cavitation rate was 0.015 mg/min for the sample sintered at 850 °C and 0.0053 mg/min for the sample sintered at 900 °C. The leaching of heavy metals in glass–ceramic samples was determined using Toxicity Characteristic Leaching Procedure. A low concentration of heavy metals in the leaching solution showed that heavy metals were successfully incorporated in the glass matrix and that obtained glass–ceramics are ecologically safe for usage. Both samples exhibit good resistance to cavitation erosion, suggesting their potential as possible replacements for structural ceramics commonly employed components of hydraulic machinery.
PB  - Springer
T2  - International Journal of Environmental Science and Technology
T1  - The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash
DO  - 10.1007/s13762-023-05411-9
ER  - 
@article{
author = "Savić, Veljko and Dojčinović, Marina and Topalović, Vladimir and Cvijović-Alagić, Ivana and Stojanović, Jovica and Matijašević, Srđan and Grujić, Snežana",
year = "2024",
abstract = "The incombustible portion of coal that remains after burning is known as bottom or fly ash, and it has a detrimental influence on the environment. One of the possible alternatives for reducing the amount of ash deposited in landfills might be the production of useful glass–ceramic from vitrified fly ash. Glass–ceramic was synthesized using fly ash from the thermal power plant "Nikola Tesla" and fluxing additives. Sinter crystallization of the parent glass resulted in glass ceramics. The glass was created by melting a combination of coal fly ash (CFA), Na2CO3, and CaCO3 at T = 1500 °C and quenching the melt in the air. Glass powders were sintered at temperatures 850 and 900 °C. The resulting glass–ceramics were characterized microstructurally, physically, and mechanically. The cavitation erosion of samples was evaluated. The cavitation rate was 0.015 mg/min for the sample sintered at 850 °C and 0.0053 mg/min for the sample sintered at 900 °C. The leaching of heavy metals in glass–ceramic samples was determined using Toxicity Characteristic Leaching Procedure. A low concentration of heavy metals in the leaching solution showed that heavy metals were successfully incorporated in the glass matrix and that obtained glass–ceramics are ecologically safe for usage. Both samples exhibit good resistance to cavitation erosion, suggesting their potential as possible replacements for structural ceramics commonly employed components of hydraulic machinery.",
publisher = "Springer",
journal = "International Journal of Environmental Science and Technology",
title = "The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash",
doi = "10.1007/s13762-023-05411-9"
}
Savić, V., Dojčinović, M., Topalović, V., Cvijović-Alagić, I., Stojanović, J., Matijašević, S.,& Grujić, S.. (2024). The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash. in International Journal of Environmental Science and Technology
Springer..
https://doi.org/10.1007/s13762-023-05411-9
Savić V, Dojčinović M, Topalović V, Cvijović-Alagić I, Stojanović J, Matijašević S, Grujić S. The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash. in International Journal of Environmental Science and Technology. 2024;.
doi:10.1007/s13762-023-05411-9 .
Savić, Veljko, Dojčinović, Marina, Topalović, Vladimir, Cvijović-Alagić, Ivana, Stojanović, Jovica, Matijašević, Srđan, Grujić, Snežana, "The effect of sintering temperature on cavitation erosion in glass–ceramics based on coal fly ash" in International Journal of Environmental Science and Technology (2024),
https://doi.org/10.1007/s13762-023-05411-9 . .

Novel chitosan and N-isopropylacrylamide-grafted-dextran-based microformulations as effective oral drug delivery system

Vučković, Nemanja; Prlainović, Nevena; Glođović, Nikola; Čalija, Bojan; Milosavljević, Nedeljko; Kalagasidis Krušić, Melina; Milašinović, Nikola

(Springer Science and Business Media Deutschland GmbH, 2024)

TY  - JOUR
AU  - Vučković, Nemanja
AU  - Prlainović, Nevena
AU  - Glođović, Nikola
AU  - Čalija, Bojan
AU  - Milosavljević, Nedeljko
AU  - Kalagasidis Krušić, Melina
AU  - Milašinović, Nikola
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7149
AB  - Novel polymer network microformulations have been widely used for pharmaceutical applications. Especially challenging is to design and develop an ideal oral drug formulation due to many hostile factors in gastrointestinal (GI) tract microenvironment. Hydrogels attained striking attention for the use in controlled drug delivery systems, and for that purpose temperature- and pH-sensitive hydrogels have been extensively employed. This paper reports synthesis and characterization of innovative polymers-crosslinked hydrogel system consisted of N-isopropylacrylamide-graft-dextran (NiPAAm-g-Dex) and chitosan (Ch). Composition of the system was optimized to demonstrate distinguished encapsulation efficiency (EE) and release properties of diclofenac sodium (DS). The microspheres structure and morphology were confirmed by attenuated total reflectance Fourier transform infrared spectroscopy (ATR FT-IR) and scanning electron microscopy (SEM), respectively. Prepared microparticles have successfully passed through the simulated gastric and small intestine and reached the intestine, where the release of DS was carried out. In vitro release studies showed smooth release profile in a controllable manner with up to 40% release of the model drug after 4 h at pH 7.20 ± 0.01. Based on the results, novel polymer microformulations show excellent potential as controlled release drug delivery system and represent a superb candidate for additional in vivo testing.
PB  - Springer Science and Business Media Deutschland GmbH
T2  - Journal of the Iranian Chemical Society
T1  - Novel chitosan and N-isopropylacrylamide-grafted-dextran-based microformulations as effective oral drug delivery system
DO  - 10.1007/s13738-023-02960-1
ER  - 
@article{
author = "Vučković, Nemanja and Prlainović, Nevena and Glođović, Nikola and Čalija, Bojan and Milosavljević, Nedeljko and Kalagasidis Krušić, Melina and Milašinović, Nikola",
year = "2024",
abstract = "Novel polymer network microformulations have been widely used for pharmaceutical applications. Especially challenging is to design and develop an ideal oral drug formulation due to many hostile factors in gastrointestinal (GI) tract microenvironment. Hydrogels attained striking attention for the use in controlled drug delivery systems, and for that purpose temperature- and pH-sensitive hydrogels have been extensively employed. This paper reports synthesis and characterization of innovative polymers-crosslinked hydrogel system consisted of N-isopropylacrylamide-graft-dextran (NiPAAm-g-Dex) and chitosan (Ch). Composition of the system was optimized to demonstrate distinguished encapsulation efficiency (EE) and release properties of diclofenac sodium (DS). The microspheres structure and morphology were confirmed by attenuated total reflectance Fourier transform infrared spectroscopy (ATR FT-IR) and scanning electron microscopy (SEM), respectively. Prepared microparticles have successfully passed through the simulated gastric and small intestine and reached the intestine, where the release of DS was carried out. In vitro release studies showed smooth release profile in a controllable manner with up to 40% release of the model drug after 4 h at pH 7.20 ± 0.01. Based on the results, novel polymer microformulations show excellent potential as controlled release drug delivery system and represent a superb candidate for additional in vivo testing.",
publisher = "Springer Science and Business Media Deutschland GmbH",
journal = "Journal of the Iranian Chemical Society",
title = "Novel chitosan and N-isopropylacrylamide-grafted-dextran-based microformulations as effective oral drug delivery system",
doi = "10.1007/s13738-023-02960-1"
}
Vučković, N., Prlainović, N., Glođović, N., Čalija, B., Milosavljević, N., Kalagasidis Krušić, M.,& Milašinović, N.. (2024). Novel chitosan and N-isopropylacrylamide-grafted-dextran-based microformulations as effective oral drug delivery system. in Journal of the Iranian Chemical Society
Springer Science and Business Media Deutschland GmbH..
https://doi.org/10.1007/s13738-023-02960-1
Vučković N, Prlainović N, Glođović N, Čalija B, Milosavljević N, Kalagasidis Krušić M, Milašinović N. Novel chitosan and N-isopropylacrylamide-grafted-dextran-based microformulations as effective oral drug delivery system. in Journal of the Iranian Chemical Society. 2024;.
doi:10.1007/s13738-023-02960-1 .
Vučković, Nemanja, Prlainović, Nevena, Glođović, Nikola, Čalija, Bojan, Milosavljević, Nedeljko, Kalagasidis Krušić, Melina, Milašinović, Nikola, "Novel chitosan and N-isopropylacrylamide-grafted-dextran-based microformulations as effective oral drug delivery system" in Journal of the Iranian Chemical Society (2024),
https://doi.org/10.1007/s13738-023-02960-1 . .

High Pressure Densities and Derived Thermodynamic Properties of Pure (1R)-(+)-α-Pinene, (1S)-(−)-β-Pinene, and Linalool: Experiment and Modeling

Grozdanić, Nikola; Simić, Zoran; Kijevčanin, Mirjana; Radović, Ivona

(American Chemical Society, 2024)

TY  - JOUR
AU  - Grozdanić, Nikola
AU  - Simić, Zoran
AU  - Kijevčanin, Mirjana
AU  - Radović, Ivona
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7150
AB  - Terpenes usually found in plants have a wide range of applications, especially as additives in various types of fuels, and most recently in the aviation industry, where they can be blended with jet fuels or kerosene. In this work, the densities of pure terpenes (1R)-(+)-α-pinene, (1S)-(−)-β-pinene, and linalool were measured over the temperature range T = (293.15 to 413.15) K and at high pressures p = (0.1 to 60) MPa. The experimental density data were fitted by the modified Tammann-Tait equation where the absolute average percentage deviation between measured and calculated densities was less than 0.02%, the percentage maximum deviation was less than 0.2%, and the average percentage deviation was less than 0.02% for all three measured terpenes. The obtained parameters were used to determine isothermal compressibility (κT), isobaric thermal expansivity (αp), internal pressure (pint), and the difference between specific heat capacity at constant pressure (cp) and constant volume (cv). Furthermore, the PC-SAFT model was applied for liquid density prediction at high pressures. Derived thermodynamic properties such as isothermal compressibility and isobaric thermal expansivity increase as temperature increases and decrease with pressure for all of the studied compounds.
PB  - American Chemical Society
T2  - Journal of Chemical and Engineering Data
T1  - High Pressure Densities and Derived Thermodynamic Properties of Pure (1R)-(+)-α-Pinene, (1S)-(−)-β-Pinene, and Linalool: Experiment and Modeling
EP  - 863
IS  - 3
SP  - 854
VL  - 69
DO  - 10.1021/acs.jced.3c00582
ER  - 
@article{
author = "Grozdanić, Nikola and Simić, Zoran and Kijevčanin, Mirjana and Radović, Ivona",
year = "2024",
abstract = "Terpenes usually found in plants have a wide range of applications, especially as additives in various types of fuels, and most recently in the aviation industry, where they can be blended with jet fuels or kerosene. In this work, the densities of pure terpenes (1R)-(+)-α-pinene, (1S)-(−)-β-pinene, and linalool were measured over the temperature range T = (293.15 to 413.15) K and at high pressures p = (0.1 to 60) MPa. The experimental density data were fitted by the modified Tammann-Tait equation where the absolute average percentage deviation between measured and calculated densities was less than 0.02%, the percentage maximum deviation was less than 0.2%, and the average percentage deviation was less than 0.02% for all three measured terpenes. The obtained parameters were used to determine isothermal compressibility (κT), isobaric thermal expansivity (αp), internal pressure (pint), and the difference between specific heat capacity at constant pressure (cp) and constant volume (cv). Furthermore, the PC-SAFT model was applied for liquid density prediction at high pressures. Derived thermodynamic properties such as isothermal compressibility and isobaric thermal expansivity increase as temperature increases and decrease with pressure for all of the studied compounds.",
publisher = "American Chemical Society",
journal = "Journal of Chemical and Engineering Data",
title = "High Pressure Densities and Derived Thermodynamic Properties of Pure (1R)-(+)-α-Pinene, (1S)-(−)-β-Pinene, and Linalool: Experiment and Modeling",
pages = "863-854",
number = "3",
volume = "69",
doi = "10.1021/acs.jced.3c00582"
}
Grozdanić, N., Simić, Z., Kijevčanin, M.,& Radović, I.. (2024). High Pressure Densities and Derived Thermodynamic Properties of Pure (1R)-(+)-α-Pinene, (1S)-(−)-β-Pinene, and Linalool: Experiment and Modeling. in Journal of Chemical and Engineering Data
American Chemical Society., 69(3), 854-863.
https://doi.org/10.1021/acs.jced.3c00582
Grozdanić N, Simić Z, Kijevčanin M, Radović I. High Pressure Densities and Derived Thermodynamic Properties of Pure (1R)-(+)-α-Pinene, (1S)-(−)-β-Pinene, and Linalool: Experiment and Modeling. in Journal of Chemical and Engineering Data. 2024;69(3):854-863.
doi:10.1021/acs.jced.3c00582 .
Grozdanić, Nikola, Simić, Zoran, Kijevčanin, Mirjana, Radović, Ivona, "High Pressure Densities and Derived Thermodynamic Properties of Pure (1R)-(+)-α-Pinene, (1S)-(−)-β-Pinene, and Linalool: Experiment and Modeling" in Journal of Chemical and Engineering Data, 69, no. 3 (2024):854-863,
https://doi.org/10.1021/acs.jced.3c00582 . .

Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior

Elhmali, Houda Taher; Stajčić, Ivana; Stajčić, Aleksandar; Pešić, Ivan; Jovanović, Marija; Petrović, Miloš; Radojević, Vesna

(MDPI, 2024)

TY  - JOUR
AU  - Elhmali, Houda Taher
AU  - Stajčić, Ivana
AU  - Stajčić, Aleksandar
AU  - Pešić, Ivan
AU  - Jovanović, Marija
AU  - Petrović, Miloš
AU  - Radojević, Vesna
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7157
AB  - While dental poly methyl methacrylate(PMMA) possesses distinctive qualities such as ease of fabrication, cost-effectiveness, and favorable physical and mechanical properties, these attributes alone are inadequate to impart the necessary impact strength and hardness. Consequently, pure PMMA is less suitable for dental applications. This research focused on the incorporation of Strontium titanate (SrTiO3-STO) and hybrid filler STO/Manganese oxide (MnO2) to improve impact resistance and hardness. The potential of STO in reinforcing PMMA is poorly investigated, while hybrid filler STO/MnO2 has not been presented yet. Differential scanning calorimetry is conducted in order to investigate the agglomeration influence on the PMMA glass transition temperature (Tg), as well as the leaching of residual monomer and volatile additives that could pose a threat to human health. It has been determined that agglomeration with 1 wt% loading had no influence on Tg, while the first scan revealed differences in evaporation of small molecules, in favor of composite PMMA-STO/MnO2, which showed the trapping potential of volatiles. Investigations of mechanical properties have revealed the significant influence of hybrid STO/MnO2 filler on microhardness and total absorbed impact energy, which were increased by 89.9% and 145.4%, respectively. Results presented in this study revealed the reinforcing potential of hybrid nanoparticles that could find application in other polymers as well.
PB  - MDPI
T2  - Polymers
T1  - Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior
IS  - 2
SP  - 278
VL  - 16
DO  - 10.3390/polym16020278
ER  - 
@article{
author = "Elhmali, Houda Taher and Stajčić, Ivana and Stajčić, Aleksandar and Pešić, Ivan and Jovanović, Marija and Petrović, Miloš and Radojević, Vesna",
year = "2024",
abstract = "While dental poly methyl methacrylate(PMMA) possesses distinctive qualities such as ease of fabrication, cost-effectiveness, and favorable physical and mechanical properties, these attributes alone are inadequate to impart the necessary impact strength and hardness. Consequently, pure PMMA is less suitable for dental applications. This research focused on the incorporation of Strontium titanate (SrTiO3-STO) and hybrid filler STO/Manganese oxide (MnO2) to improve impact resistance and hardness. The potential of STO in reinforcing PMMA is poorly investigated, while hybrid filler STO/MnO2 has not been presented yet. Differential scanning calorimetry is conducted in order to investigate the agglomeration influence on the PMMA glass transition temperature (Tg), as well as the leaching of residual monomer and volatile additives that could pose a threat to human health. It has been determined that agglomeration with 1 wt% loading had no influence on Tg, while the first scan revealed differences in evaporation of small molecules, in favor of composite PMMA-STO/MnO2, which showed the trapping potential of volatiles. Investigations of mechanical properties have revealed the significant influence of hybrid STO/MnO2 filler on microhardness and total absorbed impact energy, which were increased by 89.9% and 145.4%, respectively. Results presented in this study revealed the reinforcing potential of hybrid nanoparticles that could find application in other polymers as well.",
publisher = "MDPI",
journal = "Polymers",
title = "Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior",
number = "2",
pages = "278",
volume = "16",
doi = "10.3390/polym16020278"
}
Elhmali, H. T., Stajčić, I., Stajčić, A., Pešić, I., Jovanović, M., Petrović, M.,& Radojević, V.. (2024). Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior. in Polymers
MDPI., 16(2), 278.
https://doi.org/10.3390/polym16020278
Elhmali HT, Stajčić I, Stajčić A, Pešić I, Jovanović M, Petrović M, Radojević V. Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior. in Polymers. 2024;16(2):278.
doi:10.3390/polym16020278 .
Elhmali, Houda Taher, Stajčić, Ivana, Stajčić, Aleksandar, Pešić, Ivan, Jovanović, Marija, Petrović, Miloš, Radojević, Vesna, "Influence of Novel SrTiO3/MnO2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior" in Polymers, 16, no. 2 (2024):278,
https://doi.org/10.3390/polym16020278 . .
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