TY  - JOUR
AU  - Panczyszyn, Elzbieta
AU  - Saverio, Valentina
AU  - Monzani, Romina
AU  - Gagliardi, Mara
AU  - Petrović, Jelena
AU  - Stojkovska, Jasmina
AU  - Collavin, Licio
AU  - Corazzari, Marco
PY  - 2024-12
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7318
AB  - Human osteosarcoma (OS) is a relatively rare malignancy preferentially affecting long body bones which prognosis is often poor also due to the lack of effective therapies. Clinical management of this cancer basically relies on surgical removal of primary tumor coupled with radio/chemotherapy. Unfortunately, most osteosarcoma cells are resistant to conventional therapy, with the undergoing epithelial-mesenchymal transition (EMT) giving rise to gene expression reprogramming, thus increasing cancer cell invasiveness and metastatic potential. Alternative clinical approaches are thus urgently needed. In this context, the recently described ferroptotic cell death represents an attractive new strategy to efficiently kill cancer cells, since most chemoresistant and mesenchymal-shaped tumors display high susceptibility to pro-ferroptotic compounds. However, cancer cells have also evolved anti-ferroptotic strategies, which somehow sustain their survival upon ferroptosis induction. Indeed, here we show that osteosarcoma cell lines display heterogeneous sensitivity to ferroptosis execution, correlating with the mesenchymal phenotype, which is consistently affected by the expression of the well-known anti-ferroptotic factor ferroptosis suppressor protein 1 (FSP1). Interestingly, inhibiting the activity or expression of FSP1 restores cancer cell sensitivity to ferroptosis. Moreover, we also found that: i) AKRs might also contribute to resistance; ii) NRF2 enhances FSP1 expression upon ferroptosis induction; while iii) p53 contributes to the regulation of FSP1 basal expression in OS cells. In conclusion, FSP1 expression can potentially be used as a valuable predictive marker of OS sensitivity to ferroptosis and as a new potential therapeutic target.
PB  - Springer Nature
T2  - Cell Death Discovery
T1  - FSP1 is a predictive biomarker of osteosarcoma cells’ susceptibility to ferroptotic cell death and a potential therapeutic target
IS  - 1
SP  - 87
VL  - 10
DO  - 10.1038/s41420-024-01854-2
ER  - 

@article{
author = "Panczyszyn, Elzbieta and Saverio, Valentina and Monzani, Romina and Gagliardi, Mara and Petrović, Jelena and Stojkovska, Jasmina and Collavin, Licio and Corazzari, Marco",
year = "2024-12",
abstract = "Human osteosarcoma (OS) is a relatively rare malignancy preferentially affecting long body bones which prognosis is often poor also due to the lack of effective therapies. Clinical management of this cancer basically relies on surgical removal of primary tumor coupled with radio/chemotherapy. Unfortunately, most osteosarcoma cells are resistant to conventional therapy, with the undergoing epithelial-mesenchymal transition (EMT) giving rise to gene expression reprogramming, thus increasing cancer cell invasiveness and metastatic potential. Alternative clinical approaches are thus urgently needed. In this context, the recently described ferroptotic cell death represents an attractive new strategy to efficiently kill cancer cells, since most chemoresistant and mesenchymal-shaped tumors display high susceptibility to pro-ferroptotic compounds. However, cancer cells have also evolved anti-ferroptotic strategies, which somehow sustain their survival upon ferroptosis induction. Indeed, here we show that osteosarcoma cell lines display heterogeneous sensitivity to ferroptosis execution, correlating with the mesenchymal phenotype, which is consistently affected by the expression of the well-known anti-ferroptotic factor ferroptosis suppressor protein 1 (FSP1). Interestingly, inhibiting the activity or expression of FSP1 restores cancer cell sensitivity to ferroptosis. Moreover, we also found that: i) AKRs might also contribute to resistance; ii) NRF2 enhances FSP1 expression upon ferroptosis induction; while iii) p53 contributes to the regulation of FSP1 basal expression in OS cells. In conclusion, FSP1 expression can potentially be used as a valuable predictive marker of OS sensitivity to ferroptosis and as a new potential therapeutic target.",
publisher = "Springer Nature",
journal = "Cell Death Discovery",
title = "FSP1 is a predictive biomarker of osteosarcoma cells’ susceptibility to ferroptotic cell death and a potential therapeutic target",
number = "1",
pages = "87",
volume = "10",
doi = "10.1038/s41420-024-01854-2"
}

Panczyszyn, E., Saverio, V., Monzani, R., Gagliardi, M., Petrović, J., Stojkovska, J., Collavin, L.,& Corazzari, M.. (2024-12). FSP1 is a predictive biomarker of osteosarcoma cells’ susceptibility to ferroptotic cell death and a potential therapeutic target. in Cell Death Discovery
Springer Nature., 10(1), 87.
https://doi.org/10.1038/s41420-024-01854-2

Panczyszyn E, Saverio V, Monzani R, Gagliardi M, Petrović J, Stojkovska J, Collavin L, Corazzari M. FSP1 is a predictive biomarker of osteosarcoma cells’ susceptibility to ferroptotic cell death and a potential therapeutic target. in Cell Death Discovery. 2024;10(1):87.
doi:10.1038/s41420-024-01854-2 .

Panczyszyn, Elzbieta, Saverio, Valentina, Monzani, Romina, Gagliardi, Mara, Petrović, Jelena, Stojkovska, Jasmina, Collavin, Licio, Corazzari, Marco, "FSP1 is a predictive biomarker of osteosarcoma cells’ susceptibility to ferroptotic cell death and a potential therapeutic target" in Cell Death Discovery, 10, no. 1 (2024-12):87,
https://doi.org/10.1038/s41420-024-01854-2 . .

TY  - JOUR
AU  - Vasiljević, Bojana R.
AU  - Odobaša, Daliborka
AU  - Vujičić, Ivica
AU  - Filimonović, Milica Budimir
AU  - Smits, Krisjanis
AU  - Mijin, Dušan
AU  - Marinković, Dragana
PY  - 2024-09
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7469
AB  - In the present research, the two different systems of dye based on zinc phthalocyanine were prepared by microwave-induced synthesis and conventional methods. They were evaluated as new effective chemical-based dosimeters for gamma irradiation. The sensitivity of the prepared dosimeters was examined by studying the comparative results between them through the changes in structural and optical properties upon exposure to different gamma irradiation doses. The color bleaching of the solutions was followed spectrophotometrically. Gradual changes from blue to light yellow color of zinc phthalocyanine solution, with the increase of the gamma radiation dose, were observed due to the decomposition of the dyes based on the zinc phthalocyanine. The synthesized zinc phthalocyanine chemical-based dosimeters for measurement of gamma irradiation up to 25kGy showed excellent stability after irradiation in terms of morphology and structure, which makes them a suitable novel material as composite-based dosimeters of gamma irradiation.
PB  - Elsevier Ltd.
T2  - Radiation Physics and Chemistry
T1  - Sustainable and fast synthesis of zinc-phthalocyanine for gamma radiation dosimeter application
SP  - 111816
VL  - 222
DO  - 10.1016/j.radphyschem.2024.111816
ER  - 

@article{
author = "Vasiljević, Bojana R. and Odobaša, Daliborka and Vujičić, Ivica and Filimonović, Milica Budimir and Smits, Krisjanis and Mijin, Dušan and Marinković, Dragana",
year = "2024-09",
abstract = "In the present research, the two different systems of dye based on zinc phthalocyanine were prepared by microwave-induced synthesis and conventional methods. They were evaluated as new effective chemical-based dosimeters for gamma irradiation. The sensitivity of the prepared dosimeters was examined by studying the comparative results between them through the changes in structural and optical properties upon exposure to different gamma irradiation doses. The color bleaching of the solutions was followed spectrophotometrically. Gradual changes from blue to light yellow color of zinc phthalocyanine solution, with the increase of the gamma radiation dose, were observed due to the decomposition of the dyes based on the zinc phthalocyanine. The synthesized zinc phthalocyanine chemical-based dosimeters for measurement of gamma irradiation up to 25kGy showed excellent stability after irradiation in terms of morphology and structure, which makes them a suitable novel material as composite-based dosimeters of gamma irradiation.",
publisher = "Elsevier Ltd.",
journal = "Radiation Physics and Chemistry",
title = "Sustainable and fast synthesis of zinc-phthalocyanine for gamma radiation dosimeter application",
pages = "111816",
volume = "222",
doi = "10.1016/j.radphyschem.2024.111816"
}

Vasiljević, B. R., Odobaša, D., Vujičić, I., Filimonović, M. B., Smits, K., Mijin, D.,& Marinković, D.. (2024-09). Sustainable and fast synthesis of zinc-phthalocyanine for gamma radiation dosimeter application. in Radiation Physics and Chemistry
Elsevier Ltd.., 222, 111816.
https://doi.org/10.1016/j.radphyschem.2024.111816

Vasiljević BR, Odobaša D, Vujičić I, Filimonović MB, Smits K, Mijin D, Marinković D. Sustainable and fast synthesis of zinc-phthalocyanine for gamma radiation dosimeter application. in Radiation Physics and Chemistry. 2024;222:111816.
doi:10.1016/j.radphyschem.2024.111816 .

Vasiljević, Bojana R., Odobaša, Daliborka, Vujičić, Ivica, Filimonović, Milica Budimir, Smits, Krisjanis, Mijin, Dušan, Marinković, Dragana, "Sustainable and fast synthesis of zinc-phthalocyanine for gamma radiation dosimeter application" in Radiation Physics and Chemistry, 222 (2024-09):111816,
https://doi.org/10.1016/j.radphyschem.2024.111816 . .

TY  - JOUR
AU  - Rakić, Jelena M.
AU  - Petrović, Rada D.
AU  - Radojević, Vesna J.
AU  - Baščarević, Zvezdana D.
PY  - 2024-08
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7496
AB  - This study investigates hydration mechanism of a high volume fly ash (HVFA) binder, comprising 70 wt% of fly ash (FA), chemically activated by using sodium oxalate (Na2C2O4) and calcium formate (Ca(HCOO)2). Prior to the binder synthesis, mechanical activation of FA was employed. Effects of the activators on the properties of the HVFA binders were determined by measuring setting times and compressive strength of the binders. Heat of hydration, pore solution composition, bound water and portlandite content, mineral composition, and microstructure of HVFA binder pastes were analyzed in order to compare the hydration mechanisms of the HVFA binders activated with the selected activators. The obtained results indicated that using of the two different activators led to the enhancement of the properties of the HVFA binders, but it was achieved in two distinct ways. It was found that the use of Ca(HCOO)2 mitigated adverse effects of the high alkalinity of the pore solution of chemically activated HVFA binder on hydration process and strength development in the later period. Therefore, it was concluded that Ca(HCOO)2 was more suitable for chemical activation of HVFA binders, compared to Na2C2O4.
PB  - Elsevier Ltd.
T2  - Journal of Building Engineering
T1  - Use of sodium oxalate and calcium formate for chemical activation of high volume fly ash (HVFA) binders
SP  - 109666
VL  - 91
DO  - 10.1016/j.jobe.2024.109666
ER  - 

@article{
author = "Rakić, Jelena M. and Petrović, Rada D. and Radojević, Vesna J. and Baščarević, Zvezdana D.",
year = "2024-08",
abstract = "This study investigates hydration mechanism of a high volume fly ash (HVFA) binder, comprising 70 wt% of fly ash (FA), chemically activated by using sodium oxalate (Na2C2O4) and calcium formate (Ca(HCOO)2). Prior to the binder synthesis, mechanical activation of FA was employed. Effects of the activators on the properties of the HVFA binders were determined by measuring setting times and compressive strength of the binders. Heat of hydration, pore solution composition, bound water and portlandite content, mineral composition, and microstructure of HVFA binder pastes were analyzed in order to compare the hydration mechanisms of the HVFA binders activated with the selected activators. The obtained results indicated that using of the two different activators led to the enhancement of the properties of the HVFA binders, but it was achieved in two distinct ways. It was found that the use of Ca(HCOO)2 mitigated adverse effects of the high alkalinity of the pore solution of chemically activated HVFA binder on hydration process and strength development in the later period. Therefore, it was concluded that Ca(HCOO)2 was more suitable for chemical activation of HVFA binders, compared to Na2C2O4.",
publisher = "Elsevier Ltd.",
journal = "Journal of Building Engineering",
title = "Use of sodium oxalate and calcium formate for chemical activation of high volume fly ash (HVFA) binders",
pages = "109666",
volume = "91",
doi = "10.1016/j.jobe.2024.109666"
}

Rakić, J. M., Petrović, R. D., Radojević, V. J.,& Baščarević, Z. D.. (2024-08). Use of sodium oxalate and calcium formate for chemical activation of high volume fly ash (HVFA) binders. in Journal of Building Engineering
Elsevier Ltd.., 91, 109666.
https://doi.org/10.1016/j.jobe.2024.109666

Rakić JM, Petrović RD, Radojević VJ, Baščarević ZD. Use of sodium oxalate and calcium formate for chemical activation of high volume fly ash (HVFA) binders. in Journal of Building Engineering. 2024;91:109666.
doi:10.1016/j.jobe.2024.109666 .

Rakić, Jelena M., Petrović, Rada D., Radojević, Vesna J., Baščarević, Zvezdana D., "Use of sodium oxalate and calcium formate for chemical activation of high volume fly ash (HVFA) binders" in Journal of Building Engineering, 91 (2024-08):109666,
https://doi.org/10.1016/j.jobe.2024.109666 . .

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 . .

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 . .

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 . .

Batinić, P., Jovanović, A., Stojković, D., Čutović, N., Cvijetić, I., Gašić, U., Carević, T., Zengin, G., Marinković, A.,& Marković, T.. (2024-06). A novel source of biologically active compounds – The leaves of Serbian herbaceous peonies. in Saudi Pharmaceutical Journal
Elsevier B.V.., 32(6), 102090.
https://doi.org/10.1016/j.jsps.2024.102090

Batinić P, Jovanović A, Stojković D, Čutović N, Cvijetić I, Gašić U, Carević T, Zengin G, Marinković A, Marković T. A novel source of biologically active compounds – The leaves of Serbian herbaceous peonies. in Saudi Pharmaceutical Journal. 2024;32(6):102090.
doi:10.1016/j.jsps.2024.102090 .

Batinić, Petar, Jovanović, Aleksandra, Stojković, Dejan, Čutović, Natalija, Cvijetić, Ilija, Gašić, Uroš, Carević, Tamara, Zengin, Gökhan, Marinković, Aleksandar, Marković, Tatjana, "A novel source of biologically active compounds – The leaves of Serbian herbaceous peonies" in Saudi Pharmaceutical Journal, 32, no. 6 (2024-06):102090,
https://doi.org/10.1016/j.jsps.2024.102090 . .

TY  - JOUR
AU  - Aranđelović, Mihajlo
AU  - Đorđević, Branislav
AU  - Sedmak, Simon
AU  - Radu, Dorin
AU  - Petrović, Ana
AU  - Dikić, Stefan
AU  - Sedmak, Aleksandar
PY  - 2024-06
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7360
AB  - Failure analysis of welded joint with multiple defects was performed taking into account the effect of all defects, not just a dominant one. Four cases of multiple defects in welded joint under the uniaxial tensile loading were investigated using extended Finite Element Method. Two-dimensional Finite Element Models were made according to the tensile specimens with initial crack located in a critical area of welded joint. For each multiple defects case, numerical simulation was performed with three initial crack depth. Engineering Critical Analysis was made using Failure Assessment Diagrams for each defect that was determined as critical for its welded joint case. Numerical simulation showed that the geometry of the most prominent one from a point of view of structural integrity. It was concluded that the vertical misalignment in combination with a secondary defect, had the most adverse effect which can lead to failure of welded structure.
PB  - Elsevier Ltd.
T2  - Engineering Failure Analysis
T1  - Failure analysis of welded joint with multiple defects by extended Finite Element Method and Engineering Critical Analysis
SP  - 108176
VL  - 160
DO  - 10.1016/j.engfailanal.2024.108176
ER  - 

@article{
author = "Aranđelović, Mihajlo and Đorđević, Branislav and Sedmak, Simon and Radu, Dorin and Petrović, Ana and Dikić, Stefan and Sedmak, Aleksandar",
year = "2024-06",
abstract = "Failure analysis of welded joint with multiple defects was performed taking into account the effect of all defects, not just a dominant one. Four cases of multiple defects in welded joint under the uniaxial tensile loading were investigated using extended Finite Element Method. Two-dimensional Finite Element Models were made according to the tensile specimens with initial crack located in a critical area of welded joint. For each multiple defects case, numerical simulation was performed with three initial crack depth. Engineering Critical Analysis was made using Failure Assessment Diagrams for each defect that was determined as critical for its welded joint case. Numerical simulation showed that the geometry of the most prominent one from a point of view of structural integrity. It was concluded that the vertical misalignment in combination with a secondary defect, had the most adverse effect which can lead to failure of welded structure.",
publisher = "Elsevier Ltd.",
journal = "Engineering Failure Analysis",
title = "Failure analysis of welded joint with multiple defects by extended Finite Element Method and Engineering Critical Analysis",
pages = "108176",
volume = "160",
doi = "10.1016/j.engfailanal.2024.108176"
}

Aranđelović, M., Đorđević, B., Sedmak, S., Radu, D., Petrović, A., Dikić, S.,& Sedmak, A.. (2024-06). Failure analysis of welded joint with multiple defects by extended Finite Element Method and Engineering Critical Analysis. in Engineering Failure Analysis
Elsevier Ltd.., 160, 108176.
https://doi.org/10.1016/j.engfailanal.2024.108176

Aranđelović M, Đorđević B, Sedmak S, Radu D, Petrović A, Dikić S, Sedmak A. Failure analysis of welded joint with multiple defects by extended Finite Element Method and Engineering Critical Analysis. in Engineering Failure Analysis. 2024;160:108176.
doi:10.1016/j.engfailanal.2024.108176 .

Aranđelović, Mihajlo, Đorđević, Branislav, Sedmak, Simon, Radu, Dorin, Petrović, Ana, Dikić, Stefan, Sedmak, Aleksandar, "Failure analysis of welded joint with multiple defects by extended Finite Element Method and Engineering Critical Analysis" in Engineering Failure Analysis, 160 (2024-06):108176,
https://doi.org/10.1016/j.engfailanal.2024.108176 . .

TY  - JOUR
AU  - Ayub, Hafiz Muhammad Uzair
AU  - Alnouri, Sabla Y.
AU  - Stijepović, Mirko
AU  - Stijepović, Vladimir
AU  - Hussein, Ibnelwaleed A.
PY  - 2024-06
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7449
AB  - Energy systems are undergoing rapid change as the world responds to climate change. Many policymakers may ask, what will be the next great energy source for a low-carbon future? All indications so far point to hydrogen energy. Although it is anticipated that costs will likely fall as the hydrogen production scale increases, it may be reported that the high technology costs remain a barrier to the widespread shift towards hydrogen. This paper presents hydrogen production costs for various production methods for different regions across the world, including the USA, the Middle East, Europe, India, and Canada. The costs of hydrogen production from biomass gasification, coal gasification, and natural gas reforming are compared, revealing the varying costs across different regions. Moreover, the production of green hydrogen from renewable energy sources is also presented, and compared with conventional methods. It highlights that while green hydrogen is environmentally sustainable, its production remains cost-intensive compared to integrated processes. Notably, the Middle East and India demonstrate the most economical production costs for both electrolysis and nuclear-based processes, while Europe shows the highest costs. The information presented in this paper could be helpful for researchers and policymakers to make informed decisions regarding the necessary aspects that still need to be investigated, to help with the transition into a hydrogen energy future.
PB  - Institution of Chemical Engineers
T2  - Process Safety and Environmental Protection
T1  - A cost comparison study for hydrogen production between conventional and renewable methods
EP  - 932
SP  - 921
VL  - 186
DO  - 10.1016/j.psep.2024.04.080
ER  - 

@article{
author = "Ayub, Hafiz Muhammad Uzair and Alnouri, Sabla Y. and Stijepović, Mirko and Stijepović, Vladimir and Hussein, Ibnelwaleed A.",
year = "2024-06",
abstract = "Energy systems are undergoing rapid change as the world responds to climate change. Many policymakers may ask, what will be the next great energy source for a low-carbon future? All indications so far point to hydrogen energy. Although it is anticipated that costs will likely fall as the hydrogen production scale increases, it may be reported that the high technology costs remain a barrier to the widespread shift towards hydrogen. This paper presents hydrogen production costs for various production methods for different regions across the world, including the USA, the Middle East, Europe, India, and Canada. The costs of hydrogen production from biomass gasification, coal gasification, and natural gas reforming are compared, revealing the varying costs across different regions. Moreover, the production of green hydrogen from renewable energy sources is also presented, and compared with conventional methods. It highlights that while green hydrogen is environmentally sustainable, its production remains cost-intensive compared to integrated processes. Notably, the Middle East and India demonstrate the most economical production costs for both electrolysis and nuclear-based processes, while Europe shows the highest costs. The information presented in this paper could be helpful for researchers and policymakers to make informed decisions regarding the necessary aspects that still need to be investigated, to help with the transition into a hydrogen energy future.",
publisher = "Institution of Chemical Engineers",
journal = "Process Safety and Environmental Protection",
title = "A cost comparison study for hydrogen production between conventional and renewable methods",
pages = "932-921",
volume = "186",
doi = "10.1016/j.psep.2024.04.080"
}

Ayub, H. M. U., Alnouri, S. Y., Stijepović, M., Stijepović, V.,& Hussein, I. A.. (2024-06). A cost comparison study for hydrogen production between conventional and renewable methods. in Process Safety and Environmental Protection
Institution of Chemical Engineers., 186, 921-932.
https://doi.org/10.1016/j.psep.2024.04.080

Ayub HMU, Alnouri SY, Stijepović M, Stijepović V, Hussein IA. A cost comparison study for hydrogen production between conventional and renewable methods. in Process Safety and Environmental Protection. 2024;186:921-932.
doi:10.1016/j.psep.2024.04.080 .

Ayub, Hafiz Muhammad Uzair, Alnouri, Sabla Y., Stijepović, Mirko, Stijepović, Vladimir, Hussein, Ibnelwaleed A., "A cost comparison study for hydrogen production between conventional and renewable methods" in Process Safety and Environmental Protection, 186 (2024-06):921-932,
https://doi.org/10.1016/j.psep.2024.04.080 . .

TY  - JOUR
AU  - Cvjetićanin, Milica
AU  - Ramić, Bojana
AU  - Milanović, Marija
AU  - Veljović, Đorđe
AU  - Anđelković, Aleksandar
AU  - Maletić, Snežana
AU  - Jevrosimov, Irina
AU  - Bajkin, Branislav
AU  - Gudurić, Vera
PY  - 2024-06
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7453
AB  - Objectives: To assess and compare the cell viability and ion release profiles of two conventional glass ionomer cements (GICs), Fuji IX and Ketac Molar EasyMix, modified with TiO2 and Mg-doped-HAp nanoparticles (NPs). Methods: TiO2 NPs, synthesized via a sol–gel method, and Mg-doped hydroxyapatite, synthesized via a hydrothermal process, were incorporated into GICs at a concentration of 5 wt.%. The biocompatibility of prepared materials was assessed by evaluating their effects on the viability of dental pulp stem cells (DPSCs), together with monitoring ion release profiles. Statistical analysis was performed using One-way analysis of variance, with significance level p < 0.05. Results: The addition of NPs did not significantly affect the biocompatibility of GICs, as evidenced by comparable decreased levels in cell viability to their original formulations. Distinct variations in cell viability were observed among Fuji IX and Ketac Molar, including their respective modifications. FUJI IX and its modification with TiO2 exhibited moderate decrease in cell viability, while other groups exhibited severe negative effects. While slight differences in ion release profiles were observed among the groups, significant variations compared to original cements were not achieved. Fluoride release exhibited an initial “burst release” within the initial 24 h in all samples, stabilizing over subsequent days. Conclusions: The addition of NPs did not compromise biocompatibility, nor anticariogenic potential of tested GICs. However, observed differences among FUJI IX and Ketac Molar, including their respective modifications, as well as induced low viability of DPSC by all tested groups, suggest the need for careful consideration of cement composition in their biological assessments. Clinical significance: The findings contribute to understanding the complex interaction between NPs and GIC matrices. However, the results should be interpreted recognizing the inherent limitations associated with in vitro studies. Further research avenues could explore long-term effects, in vivo performance, and potential clinical applications.
PB  - Elsevier Ltd.
T2  - Journal of Dentistry
T1  - Cell viability assessment and ion release profiles of GICs modified with TiO2- and Mg-doped hydroxyapatite nanoparticles
SP  - 105015
VL  - 145
DO  - 10.1016/j.jdent.2024.105015
ER  - 

@article{
author = "Cvjetićanin, Milica and Ramić, Bojana and Milanović, Marija and Veljović, Đorđe and Anđelković, Aleksandar and Maletić, Snežana and Jevrosimov, Irina and Bajkin, Branislav and Gudurić, Vera",
year = "2024-06",
abstract = "Objectives: To assess and compare the cell viability and ion release profiles of two conventional glass ionomer cements (GICs), Fuji IX and Ketac Molar EasyMix, modified with TiO2 and Mg-doped-HAp nanoparticles (NPs). Methods: TiO2 NPs, synthesized via a sol–gel method, and Mg-doped hydroxyapatite, synthesized via a hydrothermal process, were incorporated into GICs at a concentration of 5 wt.%. The biocompatibility of prepared materials was assessed by evaluating their effects on the viability of dental pulp stem cells (DPSCs), together with monitoring ion release profiles. Statistical analysis was performed using One-way analysis of variance, with significance level p < 0.05. Results: The addition of NPs did not significantly affect the biocompatibility of GICs, as evidenced by comparable decreased levels in cell viability to their original formulations. Distinct variations in cell viability were observed among Fuji IX and Ketac Molar, including their respective modifications. FUJI IX and its modification with TiO2 exhibited moderate decrease in cell viability, while other groups exhibited severe negative effects. While slight differences in ion release profiles were observed among the groups, significant variations compared to original cements were not achieved. Fluoride release exhibited an initial “burst release” within the initial 24 h in all samples, stabilizing over subsequent days. Conclusions: The addition of NPs did not compromise biocompatibility, nor anticariogenic potential of tested GICs. However, observed differences among FUJI IX and Ketac Molar, including their respective modifications, as well as induced low viability of DPSC by all tested groups, suggest the need for careful consideration of cement composition in their biological assessments. Clinical significance: The findings contribute to understanding the complex interaction between NPs and GIC matrices. However, the results should be interpreted recognizing the inherent limitations associated with in vitro studies. Further research avenues could explore long-term effects, in vivo performance, and potential clinical applications.",
publisher = "Elsevier Ltd.",
journal = "Journal of Dentistry",
title = "Cell viability assessment and ion release profiles of GICs modified with TiO2- and Mg-doped hydroxyapatite nanoparticles",
pages = "105015",
volume = "145",
doi = "10.1016/j.jdent.2024.105015"
}

Cvjetićanin, M., Ramić, B., Milanović, M., Veljović, Đ., Anđelković, A., Maletić, S., Jevrosimov, I., Bajkin, B.,& Gudurić, V.. (2024-06). Cell viability assessment and ion release profiles of GICs modified with TiO2- and Mg-doped hydroxyapatite nanoparticles. in Journal of Dentistry
Elsevier Ltd.., 145, 105015.
https://doi.org/10.1016/j.jdent.2024.105015

Cvjetićanin M, Ramić B, Milanović M, Veljović Đ, Anđelković A, Maletić S, Jevrosimov I, Bajkin B, Gudurić V. Cell viability assessment and ion release profiles of GICs modified with TiO2- and Mg-doped hydroxyapatite nanoparticles. in Journal of Dentistry. 2024;145:105015.
doi:10.1016/j.jdent.2024.105015 .

Cvjetićanin, Milica, Ramić, Bojana, Milanović, Marija, Veljović, Đorđe, Anđelković, Aleksandar, Maletić, Snežana, Jevrosimov, Irina, Bajkin, Branislav, Gudurić, Vera, "Cell viability assessment and ion release profiles of GICs modified with TiO2- and Mg-doped hydroxyapatite nanoparticles" in Journal of Dentistry, 145 (2024-06):105015,
https://doi.org/10.1016/j.jdent.2024.105015 . .

TY  - JOUR
AU  - Pantelić, Nebojša Đ.
AU  - Dimić, Dušan
AU  - Saoud, Mohamad
AU  - Matović, Luka R.
AU  - Jovanović Stević, Snežana
AU  - Kasalović, Marijana P.
AU  - Dojčinović, Biljana
AU  - Zmejkovski, Bojana B.
AU  - Banjac, Nebojša R.
AU  - Kaluđerović, Goran N.
PY  - 2024-06
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7473
AB  - Three novel triphenyltin(IV) compounds with modulated azo-carboxylato ligands: triphenylstannyl (E)-4-((2-hydroxynaphthalen-1-yl)diazenyl)benzoate, 1, triphenylstannyl (E)-4-((4-hydroxyphenyl)diazenyl)benzoate, 2, and triphenylstannyl (E)-4-((4-(dimethylamino)phenyl)diazenyl)benzoate, 3, were synthesized and characterized by elemental analysis, FTIR and NMR (1H, 13C, 119Sn) spectroscopy. The structures and spectra of compounds were predicted by Density Functional Theory (DFT) methods at B3LYP-D3BJ/6–311++G(d,p)(H,C,N,O)/LanL2DZ(Sn) level of theory. Furthermore, the antitumor potential of ligand precursors, HL1–HL3, and appropriate organotin(IV) compounds 1–3 was evaluated across mouse melanoma B16F1, human breast adenocarcinoma MCF-7, human colorectal HT-29 and human prostate PC3 cell lines using MTT and CV assays. The organotin(IV) compounds exhibit enhanced cellular uptake and efficacy in reducing viable cell numbers when compared to free acids. Specifically, compound 3 demonstrates a notable impact at lower nanomolar concentrations on all tested cell lines. Moreover, 3 induces cell death in MCF-7 cells by inhibiting cell division and promoting the overproduction of cellular nitric oxide (NO), ultimately leading to caspase-independent apoptosis. Importantly, this process occurs without concurrent activation of autophagy or the generation of ROS/RNS species. The binding affinity of 1–3 with calf thymus DNA (CT-DNA) and bovine serum albumin (BSA) was investigated by fluorescence spectroscopy and molecular docking simulations, suggesting their capacity to interact with these biomolecules.
PB  - Elsevier B.V.
T2  - Journal of Organometallic Chemistry
T1  - Triphenyltin(IV) compounds bearing modulated azo-carboxylato ligands: Synthesis, structural characterization, in vitro cytotoxicity, BSA/DNA binding affinity, and in silico studies
SP  - 123158
VL  - 1013
DO  - 10.1016/j.jorganchem.2024.123158
ER  - 

@article{
author = "Pantelić, Nebojša Đ. and Dimić, Dušan and Saoud, Mohamad and Matović, Luka R. and Jovanović Stević, Snežana and Kasalović, Marijana P. and Dojčinović, Biljana and Zmejkovski, Bojana B. and Banjac, Nebojša R. and Kaluđerović, Goran N.",
year = "2024-06",
abstract = "Three novel triphenyltin(IV) compounds with modulated azo-carboxylato ligands: triphenylstannyl (E)-4-((2-hydroxynaphthalen-1-yl)diazenyl)benzoate, 1, triphenylstannyl (E)-4-((4-hydroxyphenyl)diazenyl)benzoate, 2, and triphenylstannyl (E)-4-((4-(dimethylamino)phenyl)diazenyl)benzoate, 3, were synthesized and characterized by elemental analysis, FTIR and NMR (1H, 13C, 119Sn) spectroscopy. The structures and spectra of compounds were predicted by Density Functional Theory (DFT) methods at B3LYP-D3BJ/6–311++G(d,p)(H,C,N,O)/LanL2DZ(Sn) level of theory. Furthermore, the antitumor potential of ligand precursors, HL1–HL3, and appropriate organotin(IV) compounds 1–3 was evaluated across mouse melanoma B16F1, human breast adenocarcinoma MCF-7, human colorectal HT-29 and human prostate PC3 cell lines using MTT and CV assays. The organotin(IV) compounds exhibit enhanced cellular uptake and efficacy in reducing viable cell numbers when compared to free acids. Specifically, compound 3 demonstrates a notable impact at lower nanomolar concentrations on all tested cell lines. Moreover, 3 induces cell death in MCF-7 cells by inhibiting cell division and promoting the overproduction of cellular nitric oxide (NO), ultimately leading to caspase-independent apoptosis. Importantly, this process occurs without concurrent activation of autophagy or the generation of ROS/RNS species. The binding affinity of 1–3 with calf thymus DNA (CT-DNA) and bovine serum albumin (BSA) was investigated by fluorescence spectroscopy and molecular docking simulations, suggesting their capacity to interact with these biomolecules.",
publisher = "Elsevier B.V.",
journal = "Journal of Organometallic Chemistry",
title = "Triphenyltin(IV) compounds bearing modulated azo-carboxylato ligands: Synthesis, structural characterization, in vitro cytotoxicity, BSA/DNA binding affinity, and in silico studies",
pages = "123158",
volume = "1013",
doi = "10.1016/j.jorganchem.2024.123158"
}

Pantelić, N. Đ., Dimić, D., Saoud, M., Matović, L. R., Jovanović Stević, S., Kasalović, M. P., Dojčinović, B., Zmejkovski, B. B., Banjac, N. R.,& Kaluđerović, G. N.. (2024-06). Triphenyltin(IV) compounds bearing modulated azo-carboxylato ligands: Synthesis, structural characterization, in vitro cytotoxicity, BSA/DNA binding affinity, and in silico studies. in Journal of Organometallic Chemistry
Elsevier B.V.., 1013, 123158.
https://doi.org/10.1016/j.jorganchem.2024.123158

Pantelić NĐ, Dimić D, Saoud M, Matović LR, Jovanović Stević S, Kasalović MP, Dojčinović B, Zmejkovski BB, Banjac NR, Kaluđerović GN. Triphenyltin(IV) compounds bearing modulated azo-carboxylato ligands: Synthesis, structural characterization, in vitro cytotoxicity, BSA/DNA binding affinity, and in silico studies. in Journal of Organometallic Chemistry. 2024;1013:123158.
doi:10.1016/j.jorganchem.2024.123158 .

Pantelić, Nebojša Đ., Dimić, Dušan, Saoud, Mohamad, Matović, Luka R., Jovanović Stević, Snežana, Kasalović, Marijana P., Dojčinović, Biljana, Zmejkovski, Bojana B., Banjac, Nebojša R., Kaluđerović, Goran N., "Triphenyltin(IV) compounds bearing modulated azo-carboxylato ligands: Synthesis, structural characterization, in vitro cytotoxicity, BSA/DNA binding affinity, and in silico studies" in Journal of Organometallic Chemistry, 1013 (2024-06):123158,
https://doi.org/10.1016/j.jorganchem.2024.123158 . .

TY  - JOUR
AU  - Petkovska, Jovana
AU  - Geskovski, Nikola
AU  - Marković, Darka
AU  - Dimova, Vesna
AU  - Mirakovski, Dejan
AU  - Radetić, Maja
AU  - Jordanov, Igor
PY  - 2024-06
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7155
AB  - Environmentally benign pH-indicating wound dressing comprised of carbohydrates chitosan (CH) and pectin (P), and anthocyanin grape (AG) dye is created via layer-by-layer assembly. Cotton fabric coated with eight bilayers of (CH-AG)4/(P-AG)4 deposited 1.97 % AG-dye. It exhibited a visible and immediate color change from pink to violet-blue while increasing its pH value from 6 to pH 7, matching the turning pH point of healing into an infected wound. Color transition of AG-dye in water-based buffers, tested by VIS-spectroscopy, shows the same color change when the pH value increased from 6 to 7. This coating imparts excellent antimicrobial activity against Gram-positive bacteria Staphylococcus aureus and yeast Candida albicans, moderate antibacterial activity against Gram-negative Escherichia coli bacteria, and no cytotoxicity on human fibroblast cells (MRC-5). This research proposes a sustainable, low-cost, and simple method for obtaining smart wound dressing that provides real-time monitoring of the wound pH.
PB  - Elsevier Ltd.
T2  - Carbohydrate Polymer Technologies and Applications
T1  - Chitosan-pectin multilayer coating with anthocyanin grape dye as pH indicating wound dressing: Synthesis and characterization
SP  - 100438
VL  - 7
DO  - 10.1016/j.carpta.2024.100438
ER  - 

@article{
author = "Petkovska, Jovana and Geskovski, Nikola and Marković, Darka and Dimova, Vesna and Mirakovski, Dejan and Radetić, Maja and Jordanov, Igor",
year = "2024-06",
abstract = "Environmentally benign pH-indicating wound dressing comprised of carbohydrates chitosan (CH) and pectin (P), and anthocyanin grape (AG) dye is created via layer-by-layer assembly. Cotton fabric coated with eight bilayers of (CH-AG)4/(P-AG)4 deposited 1.97 % AG-dye. It exhibited a visible and immediate color change from pink to violet-blue while increasing its pH value from 6 to pH 7, matching the turning pH point of healing into an infected wound. Color transition of AG-dye in water-based buffers, tested by VIS-spectroscopy, shows the same color change when the pH value increased from 6 to 7. This coating imparts excellent antimicrobial activity against Gram-positive bacteria Staphylococcus aureus and yeast Candida albicans, moderate antibacterial activity against Gram-negative Escherichia coli bacteria, and no cytotoxicity on human fibroblast cells (MRC-5). This research proposes a sustainable, low-cost, and simple method for obtaining smart wound dressing that provides real-time monitoring of the wound pH.",
publisher = "Elsevier Ltd.",
journal = "Carbohydrate Polymer Technologies and Applications",
title = "Chitosan-pectin multilayer coating with anthocyanin grape dye as pH indicating wound dressing: Synthesis and characterization",
pages = "100438",
volume = "7",
doi = "10.1016/j.carpta.2024.100438"
}

Petkovska, J., Geskovski, N., Marković, D., Dimova, V., Mirakovski, D., Radetić, M.,& Jordanov, I.. (2024-06). Chitosan-pectin multilayer coating with anthocyanin grape dye as pH indicating wound dressing: Synthesis and characterization. in Carbohydrate Polymer Technologies and Applications
Elsevier Ltd.., 7, 100438.
https://doi.org/10.1016/j.carpta.2024.100438

Petkovska J, Geskovski N, Marković D, Dimova V, Mirakovski D, Radetić M, Jordanov I. Chitosan-pectin multilayer coating with anthocyanin grape dye as pH indicating wound dressing: Synthesis and characterization. in Carbohydrate Polymer Technologies and Applications. 2024;7:100438.
doi:10.1016/j.carpta.2024.100438 .

Petkovska, Jovana, Geskovski, Nikola, Marković, Darka, Dimova, Vesna, Mirakovski, Dejan, Radetić, Maja, Jordanov, Igor, "Chitosan-pectin multilayer coating with anthocyanin grape dye as pH indicating wound dressing: Synthesis and characterization" in Carbohydrate Polymer Technologies and Applications, 7 (2024-06):100438,
https://doi.org/10.1016/j.carpta.2024.100438 . .

TY  - JOUR
AU  - Perović, Milica N.
AU  - Knežević Jugović, Zorica D.
AU  - Antov, Mirjana G.
PY  - 2024-06
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7257
AB  - Nanoparticles  prepared by heat treatment of protein from pumpkin leaves were evaluated as potential carriers of β-carotene. White protein fraction was recovered from green juice produced by pressing the leaves, with the step of enzyme-assisted extraction (green protocol) or without it (conventional protocol). Heat treatment of white protein fractions from conventional and green protocols at 90 °C and pH 9.3 during 20 min induced formation of nanoparticles with peak diameter 18 nm and 21 nm, respectively. Due to heating, portion of β-sheets in nanoparticles from both native protein fractions decreased by approximately 15 %, associated with an increase in surface hydrophobicity-to-area ratio. Quenching constant of β-carotene for nanoparticles was increased nearly 100 times by heating the white protein fraction recovered in green protocol. Native white protein fraction from conventional protocol and corresponding nanoparticles exhibited high ability to bind β-carotene, with quenching constant 3 × 105 L/mol and 3.3 × 105 L/mol, respectively. White protein fraction from pumpkin leaves appeared to be a suitable substrate for the fabrication of nanoparticles by heat treatment, with potential application as β-carotene nanocarriers in food matrices.
PB  - Elsevier B.V.
T2  - Future Foods
T1  - Heat-induced nanoparticles from pumpkin leaf protein for potential application as β-carotene carriers
SP  - 100310
VL  - 9
DO  - 10.1016/j.fufo.2024.100310
ER  - 

@article{
author = "Perović, Milica N. and Knežević Jugović, Zorica D. and Antov, Mirjana G.",
year = "2024-06",
abstract = "Nanoparticles  prepared by heat treatment of protein from pumpkin leaves were evaluated as potential carriers of β-carotene. White protein fraction was recovered from green juice produced by pressing the leaves, with the step of enzyme-assisted extraction (green protocol) or without it (conventional protocol). Heat treatment of white protein fractions from conventional and green protocols at 90 °C and pH 9.3 during 20 min induced formation of nanoparticles with peak diameter 18 nm and 21 nm, respectively. Due to heating, portion of β-sheets in nanoparticles from both native protein fractions decreased by approximately 15 %, associated with an increase in surface hydrophobicity-to-area ratio. Quenching constant of β-carotene for nanoparticles was increased nearly 100 times by heating the white protein fraction recovered in green protocol. Native white protein fraction from conventional protocol and corresponding nanoparticles exhibited high ability to bind β-carotene, with quenching constant 3 × 105 L/mol and 3.3 × 105 L/mol, respectively. White protein fraction from pumpkin leaves appeared to be a suitable substrate for the fabrication of nanoparticles by heat treatment, with potential application as β-carotene nanocarriers in food matrices.",
publisher = "Elsevier B.V.",
journal = "Future Foods",
title = "Heat-induced nanoparticles from pumpkin leaf protein for potential application as β-carotene carriers",
pages = "100310",
volume = "9",
doi = "10.1016/j.fufo.2024.100310"
}

Perović, M. N., Knežević Jugović, Z. D.,& Antov, M. G.. (2024-06). Heat-induced nanoparticles from pumpkin leaf protein for potential application as β-carotene carriers. in Future Foods
Elsevier B.V.., 9, 100310.
https://doi.org/10.1016/j.fufo.2024.100310

Perović MN, Knežević Jugović ZD, Antov MG. Heat-induced nanoparticles from pumpkin leaf protein for potential application as β-carotene carriers. in Future Foods. 2024;9:100310.
doi:10.1016/j.fufo.2024.100310 .

Perović, Milica N., Knežević Jugović, Zorica D., Antov, Mirjana G., "Heat-induced nanoparticles from pumpkin leaf protein for potential application as β-carotene carriers" in Future Foods, 9 (2024-06):100310,
https://doi.org/10.1016/j.fufo.2024.100310 . .

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 . .

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 . .

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 . .

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 . .

TY  - CONF
AU  - Marković, Maja D.
AU  - Svetozarević, Milica M.
AU  - Meng, Huan
AU  - Li, Zhen
AU  - Grad, Sibylle
AU  - Panić, Vesna V.
AU  - Kalagasidis Krušić, Melina T.
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7391
AB  - INTRODUCTION: Inflammation  process  in  human  body  can  lead  to  many serious inflammation-related  diseases. Hence, there are urge to find better solution for the treatment of the inflammation processes. Solution can be found in application  ofpoly(methacrylicacid)  hydrogels  which  have  potential  for  targeted  delivery  and  controlled  release  of drugs. These pH-sensitive hydrogelscan swell at the pH values between 5 and 8,and release drug in the process. So,taking into account that pH value at the inflammation site is around 6, these hydrogels are materials of choice. It  is  very  important thatthe system  for  controlled  releasebe  prepared  through mild  and  non-toxic  conditions  in order to preserve bioactivity of the drug andkeep good impact on environment. Enzymes are good candidates for eco-friendly preparation of hydrogels, because these greensubstancescan initiate polymerisation of various monomers. 
EXPERIMENTAL (or Materials and Methods):In this study, hydrogels based on poly(methacrylic acid) were prepared through  eco-friendly  method  by  using enzyme/hydrogen  peroxide(HP)/ascorbic  acid(AA)as  initiator.  Two  groupsof the samples were prepared: in the first group peroxidase isolated from potato peel waste (with activity of 0.8 IU) was used in the initiation system, whereas in the second group peroxidase isolated from soya bean coats (with activity of 0.8  IU) was  employed  in  the  initiation  system.  The  amounts  of HPand AAin  both  series  were  40  μL  and  10  mg, respectively.Anti-inflammatory drugs,dexamethasone(5 mg/mL)and diclofenac(4.5 mg/mL)were encapsulated in the first and the second group of the PMAA samples, respectively. Anti-inflammatory  effect of the PMAA hydrogels  with encapsulated drugs were tested on the Bovine Chondrocytes cells.
RESULTS  AND  DISCUSSION:Results  showed  that  the  level  of  pro-inflammatory  mediators  NO  and  IL-8  decreased. The PCR analysis showed that the proinflammatory TNα, IL-6 genesexpression level decreased, the matrix catabolism MMP1and MMP3 genesexpression level decreased and the fibrotic COL2 and ACAN genes expression level increased.
CONCLUSIONS:The studyshowed that the PMAA hydrogels have anti-inflammatory effect and have potential for treatment of the inflammation processes.
PB  - Savez hemijskih inženjera Srbije
C3  - Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
T1  - Biocharacterization of hydrogels based on poly(methacrylic acid) prepared by eco-friendly method
IS  - 1S
SP  - 28
VL  - 78
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7391
ER  - 

@conference{
author = "Marković, Maja D. and Svetozarević, Milica M. and Meng, Huan and Li, Zhen and Grad, Sibylle and Panić, Vesna V. and Kalagasidis Krušić, Melina T.",
year = "2024",
abstract = "INTRODUCTION: Inflammation  process  in  human  body  can  lead  to  many serious inflammation-related  diseases. Hence, there are urge to find better solution for the treatment of the inflammation processes. Solution can be found in application  ofpoly(methacrylicacid)  hydrogels  which  have  potential  for  targeted  delivery  and  controlled  release  of drugs. These pH-sensitive hydrogelscan swell at the pH values between 5 and 8,and release drug in the process. So,taking into account that pH value at the inflammation site is around 6, these hydrogels are materials of choice. It  is  very  important thatthe system  for  controlled  releasebe  prepared  through mild  and  non-toxic  conditions  in order to preserve bioactivity of the drug andkeep good impact on environment. Enzymes are good candidates for eco-friendly preparation of hydrogels, because these greensubstancescan initiate polymerisation of various monomers. 
EXPERIMENTAL (or Materials and Methods):In this study, hydrogels based on poly(methacrylic acid) were prepared through  eco-friendly  method  by  using enzyme/hydrogen  peroxide(HP)/ascorbic  acid(AA)as  initiator.  Two  groupsof the samples were prepared: in the first group peroxidase isolated from potato peel waste (with activity of 0.8 IU) was used in the initiation system, whereas in the second group peroxidase isolated from soya bean coats (with activity of 0.8  IU) was  employed  in  the  initiation  system.  The  amounts  of HPand AAin  both  series  were  40  μL  and  10  mg, respectively.Anti-inflammatory drugs,dexamethasone(5 mg/mL)and diclofenac(4.5 mg/mL)were encapsulated in the first and the second group of the PMAA samples, respectively. Anti-inflammatory  effect of the PMAA hydrogels  with encapsulated drugs were tested on the Bovine Chondrocytes cells.
RESULTS  AND  DISCUSSION:Results  showed  that  the  level  of  pro-inflammatory  mediators  NO  and  IL-8  decreased. The PCR analysis showed that the proinflammatory TNα, IL-6 genesexpression level decreased, the matrix catabolism MMP1and MMP3 genesexpression level decreased and the fibrotic COL2 and ACAN genes expression level increased.
CONCLUSIONS:The studyshowed that the PMAA hydrogels have anti-inflammatory effect and have potential for treatment of the inflammation processes.",
publisher = "Savez hemijskih inženjera Srbije",
journal = "Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts",
title = "Biocharacterization of hydrogels based on poly(methacrylic acid) prepared by eco-friendly method",
number = "1S",
pages = "28",
volume = "78",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7391"
}

Marković, M. D., Svetozarević, M. M., Meng, H., Li, Z., Grad, S., Panić, V. V.,& Kalagasidis Krušić, M. T.. (2024). Biocharacterization of hydrogels based on poly(methacrylic acid) prepared by eco-friendly method. in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
Savez hemijskih inženjera Srbije., 78(1S), 28.
https://hdl.handle.net/21.15107/rcub_technorep_7391

Marković MD, Svetozarević MM, Meng H, Li Z, Grad S, Panić VV, Kalagasidis Krušić MT. Biocharacterization of hydrogels based on poly(methacrylic acid) prepared by eco-friendly method. in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts. 2024;78(1S):28.
https://hdl.handle.net/21.15107/rcub_technorep_7391 .

Marković, Maja D., Svetozarević, Milica M., Meng, Huan, Li, Zhen, Grad, Sibylle, Panić, Vesna V., Kalagasidis Krušić, Melina T., "Biocharacterization of hydrogels based on poly(methacrylic acid) prepared by eco-friendly method" in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts, 78, no. 1S (2024):28,
https://hdl.handle.net/21.15107/rcub_technorep_7391 .

TY  - CONF
AU  - Kalagasidis Krušić, Melina
AU  - Lučić Škorić, Marija
AU  - Milovanović, Stoja
AU  - Panić, Vesna
AU  - Marković, Maja
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7392
AB  - The Polymer group of the Faculty of Technology and Metallurgy University of Belgrade deals with environment-sensitive hydrogel as carriersfor biomedical applications, including drug delivery, wound healing, and regenerative medicine. The first hydrogel generation synthesized in our labs was discs made of polyacrylamide and its derivatives. The synthesis was at higher temperatures (50 °C), with traditional crosslinker, N, N’-methylenebisacrylamide, and persulphate/pyrosulphate as initiator. Due to the growing demands for environmental sustainability, the general approach changed to reduce petrochemical raw materials and prepare eco-friendly materials focusing on 1) renewable polymers, initiators, and crosslinkers and 2) the application of simple, cost-effective, and eco-friendly approaches in hydrogel synthesis. To obtain the second hydrogel generation, we use renewable polymers: polysaccharides, proteins, and polyhydroxyalkanoates [1]. Still, the mechanical strength was weak. Hence, the applicationof carboxylic acids, methacrylic and itaconic, and N-isopropyl acrylamide improves mechanical properties and enhances the environmental stimuli of the carriers. Instead of traditional crosslinkers -organic molecules, we gave the advantage to plant extracts like genipin, sodium tripolyphosphate, citric acid, and calcium chloride. We made beads, microgels, aerogels, discs, films, and cylinders sensitive to pH, temperature, magnetic field, or specific molecules such as glucose. Facing an everyday challenge, improving drug delivery routes, especially for poorly water-soluble drugs, and finding an alternative to traditional antibiotics, encapsulation, and controlled release remain a challenge. Therefore, we used a mild condition (e.g., deep coating) to encapsulate/release traditional water-soluble and poorly water-soluble drugs, proteins, phenolic compounds, or supercritical carbon dioxide (scCO2) for thymol, carvacrol, and eugenol, a promising alternative for traditional antibiotics [2]. Furthermore, we reduced the hydrogel production temperature to ambient conditions and made a simple and cost-effective production process that doesn't require special equipment. The promising results we got pushed us further. So, the current research focuses on the encapsulation/controlled release of antioxidant phenolic compounds extracted from orange peel waste by applying ultrasonic-assisted extraction and deep eutectic solvent(DES) based on glycerol: urea: water. We use a new initiator system based on vitamin C and H2O2to polymerizea methacrylic acid[3]that could be useful for other monomers.As a concluding remark, we achieved significant progress in hydrogels encouragingus to continue further.
PB  - Savez hemijskih inženjera Srbije
C3  - Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
T1  - Environmentally friendly hydrogels for medical and pharmaceutical applications
IS  - 1S
SP  - 27
VL  - 78
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7392
ER  - 

@conference{
author = "Kalagasidis Krušić, Melina and Lučić Škorić, Marija and Milovanović, Stoja and Panić, Vesna and Marković, Maja",
year = "2024",
abstract = "The Polymer group of the Faculty of Technology and Metallurgy University of Belgrade deals with environment-sensitive hydrogel as carriersfor biomedical applications, including drug delivery, wound healing, and regenerative medicine. The first hydrogel generation synthesized in our labs was discs made of polyacrylamide and its derivatives. The synthesis was at higher temperatures (50 °C), with traditional crosslinker, N, N’-methylenebisacrylamide, and persulphate/pyrosulphate as initiator. Due to the growing demands for environmental sustainability, the general approach changed to reduce petrochemical raw materials and prepare eco-friendly materials focusing on 1) renewable polymers, initiators, and crosslinkers and 2) the application of simple, cost-effective, and eco-friendly approaches in hydrogel synthesis. To obtain the second hydrogel generation, we use renewable polymers: polysaccharides, proteins, and polyhydroxyalkanoates [1]. Still, the mechanical strength was weak. Hence, the applicationof carboxylic acids, methacrylic and itaconic, and N-isopropyl acrylamide improves mechanical properties and enhances the environmental stimuli of the carriers. Instead of traditional crosslinkers -organic molecules, we gave the advantage to plant extracts like genipin, sodium tripolyphosphate, citric acid, and calcium chloride. We made beads, microgels, aerogels, discs, films, and cylinders sensitive to pH, temperature, magnetic field, or specific molecules such as glucose. Facing an everyday challenge, improving drug delivery routes, especially for poorly water-soluble drugs, and finding an alternative to traditional antibiotics, encapsulation, and controlled release remain a challenge. Therefore, we used a mild condition (e.g., deep coating) to encapsulate/release traditional water-soluble and poorly water-soluble drugs, proteins, phenolic compounds, or supercritical carbon dioxide (scCO2) for thymol, carvacrol, and eugenol, a promising alternative for traditional antibiotics [2]. Furthermore, we reduced the hydrogel production temperature to ambient conditions and made a simple and cost-effective production process that doesn't require special equipment. The promising results we got pushed us further. So, the current research focuses on the encapsulation/controlled release of antioxidant phenolic compounds extracted from orange peel waste by applying ultrasonic-assisted extraction and deep eutectic solvent(DES) based on glycerol: urea: water. We use a new initiator system based on vitamin C and H2O2to polymerizea methacrylic acid[3]that could be useful for other monomers.As a concluding remark, we achieved significant progress in hydrogels encouragingus to continue further.",
publisher = "Savez hemijskih inženjera Srbije",
journal = "Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts",
title = "Environmentally friendly hydrogels for medical and pharmaceutical applications",
number = "1S",
pages = "27",
volume = "78",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7392"
}

Kalagasidis Krušić, M., Lučić Škorić, M., Milovanović, S., Panić, V.,& Marković, M.. (2024). Environmentally friendly hydrogels for medical and pharmaceutical applications. in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts
Savez hemijskih inženjera Srbije., 78(1S), 27.
https://hdl.handle.net/21.15107/rcub_technorep_7392

Kalagasidis Krušić M, Lučić Škorić M, Milovanović S, Panić V, Marković M. Environmentally friendly hydrogels for medical and pharmaceutical applications. in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts. 2024;78(1S):27.
https://hdl.handle.net/21.15107/rcub_technorep_7392 .

Kalagasidis Krušić, Melina, Lučić Škorić, Marija, Milovanović, Stoja, Panić, Vesna, Marković, Maja, "Environmentally friendly hydrogels for medical and pharmaceutical applications" in Hemijska industrija - Supplementary Issue - ExcellMater Conference 2024 Abstracts, 78, no. 1S (2024):27,
https://hdl.handle.net/21.15107/rcub_technorep_7392 .

TY  - JOUR
AU  - Veljić, Darko
AU  - Musrati, Walid
AU  - Međo, Bojan
AU  - Sedmak, Aleksandar
AU  - Radović, Nenad
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7507
AB  - This paper deals with the tool plunge stage of friction stir
welding which precedes the formation of the T-joint. A threedimensional numerical model, developed in software package
Simulia Abaqus® is applied for numerical analysis. The material of the welding plates is high strength aluminium alloy
2024-T3 of 3 mm thickness. The change of thermomechanical
conditions in the welding zones has been analysed, as well
as the conditions for eliminating the joining line in the weld
root. The tool rotation speed and shoulder plunge depth are
varied. Two tools are used for analysis with different tool pin
lengths: 2.6 mm and 3 mm. Increase in tool rotation speed
raises the temperature in the welding zone and creates conditions for eliminating the joining line in the weld root. In
addition, the increased tool pin length is also beneficial. It
is obtained that the tool rotation speed exceeding 500 min–1
is necessary for this joint and tool geometries.
AB  - U ovom radu je analizirana faza uranjanja alata pri
formiranju T spoja primenom postupka zavarivanja trenjem
sa mešanjem. Za termomehaničku analizu je korišćen trodimenzionalni numerički model, razvijen u softverskom paketu
Abaqus®. Radne ploče su od legure aluminijuma visoke
čvrstoće 2024-T3, debljine 3 mm. Praćena je promena termomehaničkih uslova u zoni zavarivanja tokom uranjanja alata,
kao i uslovi potrebni za eliminisanje linije spajanja u korenom delu zavara. Menjana je brzina rotacije alata i dubina
uranjanja čela alata. Za analizu su korišćeni alati sa dužinom trna 2.6 mm i 3 mm. Povećanjem brzine rotacije alata,
povećava se temperatura u zoni zavarivanja i stvaraju se
uslovi za eliminisanje linije spajanja u korenu zavara. Povećanje dužine trna alata utiče na eliminisanje linije spajanja.
Prema dobijenim rezultatima, brzina rotacije iznad 500 min–1
je potrebna za razmatrane geometrije spoja i alata.
PB  - Society for Structural Integrity and Life (DIVK)
T2  - Structural Integrity and Life
T1  - NUMERICAL SIMULATION OF FRICTION STIR WELDING - THE PLUNGE STAGE IN T-JOINT
T1  - NUMERIČKA SIMULACIJA ZAVARIVANJA TRENJEM SA MEŠANJEM - FAZA URANJANJA ALATA U T-SPOJ
EP  - 110
IS  - 1
SP  - 105
VL  - 24
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7507
ER  - 

@article{
author = "Veljić, Darko and Musrati, Walid and Međo, Bojan and Sedmak, Aleksandar and Radović, Nenad",
year = "2024",
abstract = "This paper deals with the tool plunge stage of friction stir
welding which precedes the formation of the T-joint. A threedimensional numerical model, developed in software package
Simulia Abaqus® is applied for numerical analysis. The material of the welding plates is high strength aluminium alloy
2024-T3 of 3 mm thickness. The change of thermomechanical
conditions in the welding zones has been analysed, as well
as the conditions for eliminating the joining line in the weld
root. The tool rotation speed and shoulder plunge depth are
varied. Two tools are used for analysis with different tool pin
lengths: 2.6 mm and 3 mm. Increase in tool rotation speed
raises the temperature in the welding zone and creates conditions for eliminating the joining line in the weld root. In
addition, the increased tool pin length is also beneficial. It
is obtained that the tool rotation speed exceeding 500 min–1
is necessary for this joint and tool geometries., U ovom radu je analizirana faza uranjanja alata pri
formiranju T spoja primenom postupka zavarivanja trenjem
sa mešanjem. Za termomehaničku analizu je korišćen trodimenzionalni numerički model, razvijen u softverskom paketu
Abaqus®. Radne ploče su od legure aluminijuma visoke
čvrstoće 2024-T3, debljine 3 mm. Praćena je promena termomehaničkih uslova u zoni zavarivanja tokom uranjanja alata,
kao i uslovi potrebni za eliminisanje linije spajanja u korenom delu zavara. Menjana je brzina rotacije alata i dubina
uranjanja čela alata. Za analizu su korišćeni alati sa dužinom trna 2.6 mm i 3 mm. Povećanjem brzine rotacije alata,
povećava se temperatura u zoni zavarivanja i stvaraju se
uslovi za eliminisanje linije spajanja u korenu zavara. Povećanje dužine trna alata utiče na eliminisanje linije spajanja.
Prema dobijenim rezultatima, brzina rotacije iznad 500 min–1
je potrebna za razmatrane geometrije spoja i alata.",
publisher = "Society for Structural Integrity and Life (DIVK)",
journal = "Structural Integrity and Life",
title = "NUMERICAL SIMULATION OF FRICTION STIR WELDING - THE PLUNGE STAGE IN T-JOINT, NUMERIČKA SIMULACIJA ZAVARIVANJA TRENJEM SA MEŠANJEM - FAZA URANJANJA ALATA U T-SPOJ",
pages = "110-105",
number = "1",
volume = "24",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7507"
}

Veljić, D., Musrati, W., Međo, B., Sedmak, A.,& Radović, N.. (2024). NUMERICAL SIMULATION OF FRICTION STIR WELDING - THE PLUNGE STAGE IN T-JOINT. in Structural Integrity and Life
Society for Structural Integrity and Life (DIVK)., 24(1), 105-110.
https://hdl.handle.net/21.15107/rcub_technorep_7507

Veljić D, Musrati W, Međo B, Sedmak A, Radović N. NUMERICAL SIMULATION OF FRICTION STIR WELDING - THE PLUNGE STAGE IN T-JOINT. in Structural Integrity and Life. 2024;24(1):105-110.
https://hdl.handle.net/21.15107/rcub_technorep_7507 .

Veljić, Darko, Musrati, Walid, Međo, Bojan, Sedmak, Aleksandar, Radović, Nenad, "NUMERICAL SIMULATION OF FRICTION STIR WELDING - THE PLUNGE STAGE IN T-JOINT" in Structural Integrity and Life, 24, no. 1 (2024):105-110,
https://hdl.handle.net/21.15107/rcub_technorep_7507 .

TY  - JOUR
AU  - Miletić, Andrijana
AU  - Vesković, Jelena
AU  - Lučić, Milica
AU  - Onjia, Antonije
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7504
AB  - Anthropogenic activities predominantly affect environmental Pb pollution, especially during waste lead-acid battery (LAB) recycling operations. In this study, the presence of Pb and nine other potentially toxic elements (PTEs) in the soil at an abandoned LAB recycling site was investigated. The focus was on spatial and vertical distributions and potential health issues related to PTEs. Average concentrations of Cd, As, Hg, Pb, Al, Zn, Cu, and Sb were elevated at all investigated soil depths, whereas the concentrations of Zn, Cu, and Sb were significant only on the soil surface. Positive matrix factorization, correlation and cluster analyses, as well as self-organizing maps, identified four primary pollution sources: recycling activities (Cd, Hg, Pb, and Sb), mixed anthropogenic sources (Zn and Cu), the soil parent material (As, Cr, and Ni), and surface runoff combined with sand application (Al and pH). While the non-carcinogenic risk results revealed a negligible risk for adults, the hazard index (HI) values for children were greater than one in 26% of the samples. For adults and children, the total carcinogenic risk (TCR) values were acceptable for 98% and 94% of the samples, respectively. Geospatial analysis identified the main hotspot in the battery disposal area. Source-specific non-carcinogenic and carcinogenic risks were most influenced by recycling activities. Monte Carlo simulation (MCS) of total HI for children showed that the risk value exceeded the threshold level (HI > 1) at the 10th percentile, whereas the maximum value of total HI for adults was 0.2. Regarding carcinogenic risk, the TCR values at the 95th percentile of all four sources for adults and children were below the limit value (1 × 10−4), indicating a low probability of cancer development.
PB  - Springer Science and Business Media Deutschland GmbH
T2  - Stochastic Environmental Research and Risk Assessment
T1  - Monte Carlo simulation of source-specific risks of soil at an abandoned lead-acid battery recycling site
DO  - 10.1007/s00477-024-02747-7
ER  - 

@article{
author = "Miletić, Andrijana and Vesković, Jelena and Lučić, Milica and Onjia, Antonije",
year = "2024",
abstract = "Anthropogenic activities predominantly affect environmental Pb pollution, especially during waste lead-acid battery (LAB) recycling operations. In this study, the presence of Pb and nine other potentially toxic elements (PTEs) in the soil at an abandoned LAB recycling site was investigated. The focus was on spatial and vertical distributions and potential health issues related to PTEs. Average concentrations of Cd, As, Hg, Pb, Al, Zn, Cu, and Sb were elevated at all investigated soil depths, whereas the concentrations of Zn, Cu, and Sb were significant only on the soil surface. Positive matrix factorization, correlation and cluster analyses, as well as self-organizing maps, identified four primary pollution sources: recycling activities (Cd, Hg, Pb, and Sb), mixed anthropogenic sources (Zn and Cu), the soil parent material (As, Cr, and Ni), and surface runoff combined with sand application (Al and pH). While the non-carcinogenic risk results revealed a negligible risk for adults, the hazard index (HI) values for children were greater than one in 26% of the samples. For adults and children, the total carcinogenic risk (TCR) values were acceptable for 98% and 94% of the samples, respectively. Geospatial analysis identified the main hotspot in the battery disposal area. Source-specific non-carcinogenic and carcinogenic risks were most influenced by recycling activities. Monte Carlo simulation (MCS) of total HI for children showed that the risk value exceeded the threshold level (HI > 1) at the 10th percentile, whereas the maximum value of total HI for adults was 0.2. Regarding carcinogenic risk, the TCR values at the 95th percentile of all four sources for adults and children were below the limit value (1 × 10−4), indicating a low probability of cancer development.",
publisher = "Springer Science and Business Media Deutschland GmbH",
journal = "Stochastic Environmental Research and Risk Assessment",
title = "Monte Carlo simulation of source-specific risks of soil at an abandoned lead-acid battery recycling site",
doi = "10.1007/s00477-024-02747-7"
}

Miletić, A., Vesković, J., Lučić, M.,& Onjia, A.. (2024). Monte Carlo simulation of source-specific risks of soil at an abandoned lead-acid battery recycling site. in Stochastic Environmental Research and Risk Assessment
Springer Science and Business Media Deutschland GmbH..
https://doi.org/10.1007/s00477-024-02747-7

Miletić A, Vesković J, Lučić M, Onjia A. Monte Carlo simulation of source-specific risks of soil at an abandoned lead-acid battery recycling site. in Stochastic Environmental Research and Risk Assessment. 2024;.
doi:10.1007/s00477-024-02747-7 .

Miletić, Andrijana, Vesković, Jelena, Lučić, Milica, Onjia, Antonije, "Monte Carlo simulation of source-specific risks of soil at an abandoned lead-acid battery recycling site" in Stochastic Environmental Research and Risk Assessment (2024),
https://doi.org/10.1007/s00477-024-02747-7 . .

TY  - JOUR
AU  - Miletić, Vesna
AU  - Avuthu, Rajiv
AU  - Zaprzala, Patrick
AU  - Divnić‐Resnik, Tihana
AU  - Savić‐Stanković, Tatjana
AU  - Cabunac, Jovan
AU  - Stašić, Jovana N.
AU  - Matić, Tamara
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7503
AB  - Objectives: To evaluate the effects of enhanced personal protective equipment (Enhanced_PPE) on student-operator's experience and restorative procedure. Methods: Student-operators (N = 29 Year 3 dental students) performed Class II composite restorations (SimpliShade, Kerr) in typodont upper molars (OneDental) equipped with N95 respirators, full-face shields, disposable headwear and gowns (Enhanced_PPE) or surgical masks, protective glasses/goggles and non-disposable gowns (Standard_PPE) 2 weeks later. Cavity dimensions were measured on cone beam computed tomography images. The quality of composite restorations was assessed using selected FDI criteria and Vickers hardness. A questionnaire assessed the operators' discomfort, anxiety, confidence, ability to perform, and procedure outcome. Data were analyzed using paired t-test and McNemar test (alpha = 0.05). Results: Student-operators experienced greater discomfort and anxiety, reduced confidence and ability to perform, and rated the procedure as less satisfactory with Enhanced_PPE (p < 0.05). Differences in proximal box width were marginally significant (Enhanced_PPE 1.8 ± 0.4 mm, Standard_PPE 1.6 ± 0.3 mm) (p = 0.047). Other cavity dimensions were similar between groups (p > 0.05) as were restorations regarding surface luster, anatomical form, marginal adaptation, proximal contour, and contact (p > 0.05). There were no differences in the hardness of composite restorations (top p = 0.349, bottom p = 0.334). Conclusions: Enhanced_PPE led to student-operator discomfort, anxiety, and reduced confidence, but did not impact the quality of Class II preparation and composite restorations versus Standard_PPE.
PB  - John Wiley and Sons Inc.
T2  - Journal of Dental Education
T1  - Enhanced personal protective equipment and dental students’ experience and quality of a restorative procedure in a simulated clinical setting
DO  - 10.1002/jdd.13593
ER  - 

@article{
author = "Miletić, Vesna and Avuthu, Rajiv and Zaprzala, Patrick and Divnić‐Resnik, Tihana and Savić‐Stanković, Tatjana and Cabunac, Jovan and Stašić, Jovana N. and Matić, Tamara",
year = "2024",
abstract = "Objectives: To evaluate the effects of enhanced personal protective equipment (Enhanced_PPE) on student-operator's experience and restorative procedure. Methods: Student-operators (N = 29 Year 3 dental students) performed Class II composite restorations (SimpliShade, Kerr) in typodont upper molars (OneDental) equipped with N95 respirators, full-face shields, disposable headwear and gowns (Enhanced_PPE) or surgical masks, protective glasses/goggles and non-disposable gowns (Standard_PPE) 2 weeks later. Cavity dimensions were measured on cone beam computed tomography images. The quality of composite restorations was assessed using selected FDI criteria and Vickers hardness. A questionnaire assessed the operators' discomfort, anxiety, confidence, ability to perform, and procedure outcome. Data were analyzed using paired t-test and McNemar test (alpha = 0.05). Results: Student-operators experienced greater discomfort and anxiety, reduced confidence and ability to perform, and rated the procedure as less satisfactory with Enhanced_PPE (p < 0.05). Differences in proximal box width were marginally significant (Enhanced_PPE 1.8 ± 0.4 mm, Standard_PPE 1.6 ± 0.3 mm) (p = 0.047). Other cavity dimensions were similar between groups (p > 0.05) as were restorations regarding surface luster, anatomical form, marginal adaptation, proximal contour, and contact (p > 0.05). There were no differences in the hardness of composite restorations (top p = 0.349, bottom p = 0.334). Conclusions: Enhanced_PPE led to student-operator discomfort, anxiety, and reduced confidence, but did not impact the quality of Class II preparation and composite restorations versus Standard_PPE.",
publisher = "John Wiley and Sons Inc.",
journal = "Journal of Dental Education",
title = "Enhanced personal protective equipment and dental students’ experience and quality of a restorative procedure in a simulated clinical setting",
doi = "10.1002/jdd.13593"
}

Miletić, V., Avuthu, R., Zaprzala, P., Divnić‐Resnik, T., Savić‐Stanković, T., Cabunac, J., Stašić, J. N.,& Matić, T.. (2024). Enhanced personal protective equipment and dental students’ experience and quality of a restorative procedure in a simulated clinical setting. in Journal of Dental Education
John Wiley and Sons Inc...
https://doi.org/10.1002/jdd.13593

Miletić V, Avuthu R, Zaprzala P, Divnić‐Resnik T, Savić‐Stanković T, Cabunac J, Stašić JN, Matić T. Enhanced personal protective equipment and dental students’ experience and quality of a restorative procedure in a simulated clinical setting. in Journal of Dental Education. 2024;.
doi:10.1002/jdd.13593 .

Miletić, Vesna, Avuthu, Rajiv, Zaprzala, Patrick, Divnić‐Resnik, Tihana, Savić‐Stanković, Tatjana, Cabunac, Jovan, Stašić, Jovana N., Matić, Tamara, "Enhanced personal protective equipment and dental students’ experience and quality of a restorative procedure in a simulated clinical setting" in Journal of Dental Education (2024),
https://doi.org/10.1002/jdd.13593 . .

TY  - JOUR
AU  - Mladenović Nikolić, Nataša
AU  - Kljajević, Ljiljana
AU  - Nenadović, Snežana S.
AU  - Potočnik, Jelena
AU  - Knežević, Sanja
AU  - Dolenec, Sabina
AU  - Trivunac, Katarina
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7502
AB  - The objective of this study was to demonstrate the potential utilization of fly ash (FA), wood ash (WA), and metakaolin (MK) in developing new alkali-activated materials (AAMs) for the removal of cadmium ions from waste water. The synthesis of AAMs involved the dissolution of solid precursors, FA, WA, and MK, by a liquid activator (Na2SiO3 and NaOH). In concentrated solutions of the activator, the formation of an aluminosilicate gel structure occurred. DRIFT spectroscopy of the AAMs indicated main vibration bands between 1036 cm−1 and 996 cm−1, corresponding to Si-O-Si/Si-O-Al bands. Shifting vibration bands were seen at 1028 cm−1 to 1021 cm−1, indicating that the Si-O-Si/Si-O-Al bond is elongating, and the bond angle is decreasing. Based on the X-ray diffraction results, alkali-activated samples consist of an amorphous phase and residual mineral phases. The characteristic “hump” of an amorphous phase in the range from 20 to 40° 2θ was observed in FA and in all AWAFA samples. By the XRD patterns of the AAMs obtained by the activation of a solid three-component system, a new crystalline phase, gehlenite, was identified. The efficiency of AAMs in removing cadmium ions from aqueous solutions was tested under various conditions. The highest values of adsorption capacity, 64.76 mg/g (AWAFA6), 67.02 mg/g (AWAFAMK6), and 72.84 mg/g mg/g (AWAMK6), were obtained for materials activated with a 6 M NaOH solution in the alkali activator. The Langmuir adsorption isotherm and pseudo-second kinetic order provided the best fit for all investigated AAMs.
PB  - MDPI
T2  - Gels
T1  - Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials
IS  - 5
SP  - 317
VL  - 10
DO  - 10.3390/gels10050317
ER  - 

@article{
author = "Mladenović Nikolić, Nataša and Kljajević, Ljiljana and Nenadović, Snežana S. and Potočnik, Jelena and Knežević, Sanja and Dolenec, Sabina and Trivunac, Katarina",
year = "2024",
abstract = "The objective of this study was to demonstrate the potential utilization of fly ash (FA), wood ash (WA), and metakaolin (MK) in developing new alkali-activated materials (AAMs) for the removal of cadmium ions from waste water. The synthesis of AAMs involved the dissolution of solid precursors, FA, WA, and MK, by a liquid activator (Na2SiO3 and NaOH). In concentrated solutions of the activator, the formation of an aluminosilicate gel structure occurred. DRIFT spectroscopy of the AAMs indicated main vibration bands between 1036 cm−1 and 996 cm−1, corresponding to Si-O-Si/Si-O-Al bands. Shifting vibration bands were seen at 1028 cm−1 to 1021 cm−1, indicating that the Si-O-Si/Si-O-Al bond is elongating, and the bond angle is decreasing. Based on the X-ray diffraction results, alkali-activated samples consist of an amorphous phase and residual mineral phases. The characteristic “hump” of an amorphous phase in the range from 20 to 40° 2θ was observed in FA and in all AWAFA samples. By the XRD patterns of the AAMs obtained by the activation of a solid three-component system, a new crystalline phase, gehlenite, was identified. The efficiency of AAMs in removing cadmium ions from aqueous solutions was tested under various conditions. The highest values of adsorption capacity, 64.76 mg/g (AWAFA6), 67.02 mg/g (AWAFAMK6), and 72.84 mg/g mg/g (AWAMK6), were obtained for materials activated with a 6 M NaOH solution in the alkali activator. The Langmuir adsorption isotherm and pseudo-second kinetic order provided the best fit for all investigated AAMs.",
publisher = "MDPI",
journal = "Gels",
title = "Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials",
number = "5",
pages = "317",
volume = "10",
doi = "10.3390/gels10050317"
}

Mladenović Nikolić, N., Kljajević, L., Nenadović, S. S., Potočnik, J., Knežević, S., Dolenec, S.,& Trivunac, K.. (2024). Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials. in Gels
MDPI., 10(5), 317.
https://doi.org/10.3390/gels10050317

Mladenović Nikolić N, Kljajević L, Nenadović SS, Potočnik J, Knežević S, Dolenec S, Trivunac K. Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials. in Gels. 2024;10(5):317.
doi:10.3390/gels10050317 .

Mladenović Nikolić, Nataša, Kljajević, Ljiljana, Nenadović, Snežana S., Potočnik, Jelena, Knežević, Sanja, Dolenec, Sabina, Trivunac, Katarina, "Adsorption Efficiency of Cadmium (II) by Different Alkali-Activated Materials" in Gels, 10, no. 5 (2024):317,
https://doi.org/10.3390/gels10050317 . .

TY  - JOUR
AU  - Molnar, Dejan
AU  - Josipović, Sonja
AU  - Baškot, Bojan
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7500
AB  - U radu su predstavljeni različiti modeli regionalnog ekonomskog rasta prema kojima obrazovna struktura radno sposobnog stanovništva i preduzetnička aktivnost značajno doprinose unapređenju ekonomskih performansi. Takođe, analizira se uloga koju preduzetnička aktivnost i kvalitet ljudskog kapitala imaju na regionalni ekonomski rast u Republici Srbiji u periodu 2011-2020, na uzorku od 25 subregiona NUTS 3 nivoa. Rezultati ocenjivanja tri izabrana modela panela ukazuju da preduzetničke aktivnosti imaju vitalnu ulogu za rast bruto dodate vrednosti na nivou subregiona. S obzirom da glavni teorijski i brojni empirijski nalazi upućuju na to da nosioci regionalnog razvoja treba da budu preduzetnici koji poseduju odgovarajuća znanja, sposobnosti, kreativnost i veštine, preporuka za kreatore javnih politika je da kontinuirano rade na unapređenju poslovne klime i izgradnji stimulativnog preduzetničkog okruženja. Takav ambijent može podstaći visokoobrazovane pojedince da postanu ključni nosioci preduzetničkih aktivnosti.
AB  - The paper presents different concepts of regional economic growth, according to which the educational structure of the working age population and entrepreneurial activity significantly contribute to the improvement of economic performance. It also analyzes the role of the entrepreneurial activity and the quality of human capital in regional economic growth in Serbia in the period from 2011 to 2020 using a sample of 25 NUTS 3 level sub-regions. The results of the evaluation of the three selected panel models indicate that entrepreneurial activities play a vital role in the growth of gross added value at the level of the sub-region. Given the fact that the main theoretical and numerous empirical findings suggest that bearers of regional development should be entrepreneurs who possess the appropriate knowledge, abilities, creativity and skills, the recommendation for the creators of public policies is to continuously work on improving the business climate and building a stimulating entrepreneurial environment. Such an environment can encourage highly educated individuals to become the key bearers of entrepreneurial activities.
PB  - Univerzitet u Kragujevcu, Ekonomski fakultet
T2  - Ekonomski horizonti
T1  - Da li su preduzetništvo i ljudski kapital pokretači regionalnog rasta? Empirijsko istraživanje na nivou NUTS 3 subregiona u Republici Srbiji
T1  - Are entrepreneurship and human capital the drivers of regional growth? Evidence from NUTS 3 sub-regions in Serbia
EP  - 39
IS  - 1
SP  - 25
VL  - 26
DO  - 10.5937/ekonhor2401025M
ER  - 

@article{
author = "Molnar, Dejan and Josipović, Sonja and Baškot, Bojan",
year = "2024",
abstract = "U radu su predstavljeni različiti modeli regionalnog ekonomskog rasta prema kojima obrazovna struktura radno sposobnog stanovništva i preduzetnička aktivnost značajno doprinose unapređenju ekonomskih performansi. Takođe, analizira se uloga koju preduzetnička aktivnost i kvalitet ljudskog kapitala imaju na regionalni ekonomski rast u Republici Srbiji u periodu 2011-2020, na uzorku od 25 subregiona NUTS 3 nivoa. Rezultati ocenjivanja tri izabrana modela panela ukazuju da preduzetničke aktivnosti imaju vitalnu ulogu za rast bruto dodate vrednosti na nivou subregiona. S obzirom da glavni teorijski i brojni empirijski nalazi upućuju na to da nosioci regionalnog razvoja treba da budu preduzetnici koji poseduju odgovarajuća znanja, sposobnosti, kreativnost i veštine, preporuka za kreatore javnih politika je da kontinuirano rade na unapređenju poslovne klime i izgradnji stimulativnog preduzetničkog okruženja. Takav ambijent može podstaći visokoobrazovane pojedince da postanu ključni nosioci preduzetničkih aktivnosti., The paper presents different concepts of regional economic growth, according to which the educational structure of the working age population and entrepreneurial activity significantly contribute to the improvement of economic performance. It also analyzes the role of the entrepreneurial activity and the quality of human capital in regional economic growth in Serbia in the period from 2011 to 2020 using a sample of 25 NUTS 3 level sub-regions. The results of the evaluation of the three selected panel models indicate that entrepreneurial activities play a vital role in the growth of gross added value at the level of the sub-region. Given the fact that the main theoretical and numerous empirical findings suggest that bearers of regional development should be entrepreneurs who possess the appropriate knowledge, abilities, creativity and skills, the recommendation for the creators of public policies is to continuously work on improving the business climate and building a stimulating entrepreneurial environment. Such an environment can encourage highly educated individuals to become the key bearers of entrepreneurial activities.",
publisher = "Univerzitet u Kragujevcu, Ekonomski fakultet",
journal = "Ekonomski horizonti",
title = "Da li su preduzetništvo i ljudski kapital pokretači regionalnog rasta? Empirijsko istraživanje na nivou NUTS 3 subregiona u Republici Srbiji, Are entrepreneurship and human capital the drivers of regional growth? Evidence from NUTS 3 sub-regions in Serbia",
pages = "39-25",
number = "1",
volume = "26",
doi = "10.5937/ekonhor2401025M"
}

Molnar, D., Josipović, S.,& Baškot, B.. (2024). Da li su preduzetništvo i ljudski kapital pokretači regionalnog rasta? Empirijsko istraživanje na nivou NUTS 3 subregiona u Republici Srbiji. in Ekonomski horizonti
Univerzitet u Kragujevcu, Ekonomski fakultet., 26(1), 25-39.
https://doi.org/10.5937/ekonhor2401025M

Molnar D, Josipović S, Baškot B. Da li su preduzetništvo i ljudski kapital pokretači regionalnog rasta? Empirijsko istraživanje na nivou NUTS 3 subregiona u Republici Srbiji. in Ekonomski horizonti. 2024;26(1):25-39.
doi:10.5937/ekonhor2401025M .

Molnar, Dejan, Josipović, Sonja, Baškot, Bojan, "Da li su preduzetništvo i ljudski kapital pokretači regionalnog rasta? Empirijsko istraživanje na nivou NUTS 3 subregiona u Republici Srbiji" in Ekonomski horizonti, 26, no. 1 (2024):25-39,
https://doi.org/10.5937/ekonhor2401025M . .

TY  - JOUR
AU  - Đorđević, Milena
AU  - Cerović, Radosav
AU  - Meland, Mekjell
AU  - Akšić, Milica Fotirić
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7499
AB  - This paper reports on a study investigating the viability and senescence of plum ovules when exposed to different constant temperatures over two years. The research was conducted on the primary and secondary ovules of four plum cultivars: ‘Mallard’, ‘Edda’, ‘Jubileum’, and ‘Reeves’. The results show that the first indication of ovule viability loss was callose accumulation, which was detected using the fluorescent dye aniline blue. All cultivars had viable ovules, in different percentages, at 8 °C on the twelfth day after anthesis. However, at higher temperatures, distinct patterns emerged, indicating the adaptability of each cultivar at certain temperatures. The first indication of callose accumulation became visible at the chalazal pole. After anthesis, the ovule’s ability to remain viable gradually reduced, followed by callose deposition throughout the ovary. The cultivars ‘Edda’ and ‘Reeves’, from 6 days after anthesis onward, in both years, showed the highest percentage of nonviable ovules. In contrast, the ‘Jubileum’ cultivar demonstrated the highest percentage of viable ovules. The loss of viability of secondary ovules followed a similar pattern to that of the primary ovules in all cultivars. This research provides valuable insights into embryological processes, which can help in the following breeding programs, and to cultivate plum cultivars in Western Norway’s climate conditions.
PB  - MDPI
T2  - Plants
T1  - The Effect of Different Temperatures on the Viability and Senescence of Plum Ovules (Prunus domestica L.)
IS  - 10
SP  - 1359
VL  - 13
DO  - 10.3390/plants13101359
ER  - 

@article{
author = "Đorđević, Milena and Cerović, Radosav and Meland, Mekjell and Akšić, Milica Fotirić",
year = "2024",
abstract = "This paper reports on a study investigating the viability and senescence of plum ovules when exposed to different constant temperatures over two years. The research was conducted on the primary and secondary ovules of four plum cultivars: ‘Mallard’, ‘Edda’, ‘Jubileum’, and ‘Reeves’. The results show that the first indication of ovule viability loss was callose accumulation, which was detected using the fluorescent dye aniline blue. All cultivars had viable ovules, in different percentages, at 8 °C on the twelfth day after anthesis. However, at higher temperatures, distinct patterns emerged, indicating the adaptability of each cultivar at certain temperatures. The first indication of callose accumulation became visible at the chalazal pole. After anthesis, the ovule’s ability to remain viable gradually reduced, followed by callose deposition throughout the ovary. The cultivars ‘Edda’ and ‘Reeves’, from 6 days after anthesis onward, in both years, showed the highest percentage of nonviable ovules. In contrast, the ‘Jubileum’ cultivar demonstrated the highest percentage of viable ovules. The loss of viability of secondary ovules followed a similar pattern to that of the primary ovules in all cultivars. This research provides valuable insights into embryological processes, which can help in the following breeding programs, and to cultivate plum cultivars in Western Norway’s climate conditions.",
publisher = "MDPI",
journal = "Plants",
title = "The Effect of Different Temperatures on the Viability and Senescence of Plum Ovules (Prunus domestica L.)",
number = "10",
pages = "1359",
volume = "13",
doi = "10.3390/plants13101359"
}

Đorđević, M., Cerović, R., Meland, M.,& Akšić, M. F.. (2024). The Effect of Different Temperatures on the Viability and Senescence of Plum Ovules (Prunus domestica L.). in Plants
MDPI., 13(10), 1359.
https://doi.org/10.3390/plants13101359

Đorđević M, Cerović R, Meland M, Akšić MF. The Effect of Different Temperatures on the Viability and Senescence of Plum Ovules (Prunus domestica L.). in Plants. 2024;13(10):1359.
doi:10.3390/plants13101359 .

Đorđević, Milena, Cerović, Radosav, Meland, Mekjell, Akšić, Milica Fotirić, "The Effect of Different Temperatures on the Viability and Senescence of Plum Ovules (Prunus domestica L.)" in Plants, 13, no. 10 (2024):1359,
https://doi.org/10.3390/plants13101359 . .