TY  - JOUR
AU  - Milinčić, Danijel D.
AU  - Kostić, Aleksandar Ž.
AU  - Kolašinac, Stefan
AU  - Rac, Vladislav
AU  - Banjac, Nebojša
AU  - Lađarević, Jelena
AU  - Lević, Steva
AU  - Pavlović, Vladimir B.
AU  - Stanojević, Slađana P.
AU  - Nedović, Viktor A.
AU  - Pešić, Mirjana B.
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6650
AB  - This study aimed to evaluate the physical (particle size and ζ-potential) and techno-functional properties (emulsifying and foaming) of goat milk powders enriched with grape pomace seed extract (TME), as promising food ingredients in the formulation of functional food. Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) and Raman spectroscopies, along with advanced chemometric tools were employed as well as Scanning Electron Microscopy (SEM) for analyzing TME powders. All powders exhibited a unimodal particle size distribution and ζ-potential values more negative than −36 mV. ATR-FTIR and Raman spectroscopies combined with principal component analysis (PCA) demonstrated distinct separation among skimmed goat milk (M), thermally treated skimmed goat milk (TM), and TME powders in different spectral regions (amide I, II, III, and fingerprint region). This separation resulted from the applied thermal treatment, the presence of phenolic compounds and their complexes with goat milk proteins, and the formation of Maillard reaction products. SEM analysis confirmed the different morphology and shapes of M, TM and TME powders. The 0.1% solutions of M, TM and TME exhibited good emulsifying properties (emulsion activity index and emulsion stability index) but showed poor foaming properties, except for the M sample. Solution concentrations higher than 0.1% for all samples (0.5% and 1.0%) displayed poor techno-functional properties. In summary, a schematic representation of the arrangement of casein micelles in 0.1% M, TM and TME samples, on oil/water and air/water surfaces was provided. The production of TME powders represents an innovative strategy for waste recovery in the production of functional food ingredients with good emulsifying properties.
PB  - Elsevier B.V.
T2  - Food Hydrocolloids
T1  - Goat milk powders enriched with grape pomace seed extract: Physical and techno-functional properties
SP  - 109293
VL  - 146
DO  - 10.1016/j.foodhyd.2023.109293
ER  - 

@article{
author = "Milinčić, Danijel D. and Kostić, Aleksandar Ž. and Kolašinac, Stefan and Rac, Vladislav and Banjac, Nebojša and Lađarević, Jelena and Lević, Steva and Pavlović, Vladimir B. and Stanojević, Slađana P. and Nedović, Viktor A. and Pešić, Mirjana B.",
year = "2024",
abstract = "This study aimed to evaluate the physical (particle size and ζ-potential) and techno-functional properties (emulsifying and foaming) of goat milk powders enriched with grape pomace seed extract (TME), as promising food ingredients in the formulation of functional food. Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) and Raman spectroscopies, along with advanced chemometric tools were employed as well as Scanning Electron Microscopy (SEM) for analyzing TME powders. All powders exhibited a unimodal particle size distribution and ζ-potential values more negative than −36 mV. ATR-FTIR and Raman spectroscopies combined with principal component analysis (PCA) demonstrated distinct separation among skimmed goat milk (M), thermally treated skimmed goat milk (TM), and TME powders in different spectral regions (amide I, II, III, and fingerprint region). This separation resulted from the applied thermal treatment, the presence of phenolic compounds and their complexes with goat milk proteins, and the formation of Maillard reaction products. SEM analysis confirmed the different morphology and shapes of M, TM and TME powders. The 0.1% solutions of M, TM and TME exhibited good emulsifying properties (emulsion activity index and emulsion stability index) but showed poor foaming properties, except for the M sample. Solution concentrations higher than 0.1% for all samples (0.5% and 1.0%) displayed poor techno-functional properties. In summary, a schematic representation of the arrangement of casein micelles in 0.1% M, TM and TME samples, on oil/water and air/water surfaces was provided. The production of TME powders represents an innovative strategy for waste recovery in the production of functional food ingredients with good emulsifying properties.",
publisher = "Elsevier B.V.",
journal = "Food Hydrocolloids",
title = "Goat milk powders enriched with grape pomace seed extract: Physical and techno-functional properties",
pages = "109293",
volume = "146",
doi = "10.1016/j.foodhyd.2023.109293"
}

Milinčić, D. D., Kostić, A. Ž., Kolašinac, S., Rac, V., Banjac, N., Lađarević, J., Lević, S., Pavlović, V. B., Stanojević, S. P., Nedović, V. A.,& Pešić, M. B.. (2024). Goat milk powders enriched with grape pomace seed extract: Physical and techno-functional properties. in Food Hydrocolloids
Elsevier B.V.., 146, 109293.
https://doi.org/10.1016/j.foodhyd.2023.109293

Milinčić DD, Kostić AŽ, Kolašinac S, Rac V, Banjac N, Lađarević J, Lević S, Pavlović VB, Stanojević SP, Nedović VA, Pešić MB. Goat milk powders enriched with grape pomace seed extract: Physical and techno-functional properties. in Food Hydrocolloids. 2024;146:109293.
doi:10.1016/j.foodhyd.2023.109293 .

Milinčić, Danijel D., Kostić, Aleksandar Ž., Kolašinac, Stefan, Rac, Vladislav, Banjac, Nebojša, Lađarević, Jelena, Lević, Steva, Pavlović, Vladimir B., Stanojević, Slađana P., Nedović, Viktor A., Pešić, Mirjana B., "Goat milk powders enriched with grape pomace seed extract: Physical and techno-functional properties" in Food Hydrocolloids, 146 (2024):109293,
https://doi.org/10.1016/j.foodhyd.2023.109293 . .

TY  - JOUR
AU  - Vujančević, Jelena
AU  - Andričević, Pavao
AU  - Đokić, Veljko
AU  - Blagojević, Vladimir
AU  - Pavlović, Vera P.
AU  - Ćirković, Jovana
AU  - Horváth, Endre
AU  - Forró, László
AU  - Karoui, Abdennaceur
AU  - Pavlović, Vladimir B.
AU  - Janaćković, Đorđe
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5921
AB  - In this study, we report the influence of vanadium oxide (VO), as a photosensitive component, on the photoactivity of TiO2 nanotubes (TNTs). A series of TNTs of varying tube diameter were synthesized by the anodization of titanium foils at different voltages, while vanadium oxide was deposited on TNTs by wet chemical deposition. An improvement in the optical properties of nanotubes was observed after the deposition of vanadium oxide. An improvement in the optical properties (redshift in UV-Vis spectra) of TNTs and TNT/VO was noted. The photocatalytic activity was improved with increasing tube diameter, while it was weakened after the deposition of VO. Furthermore, photoactivity was investigated in photodiodes based on TNTs or TNT/VO and single crystals of CH3NH3PbI3. The photoelectric measurement revealed that different TNT diameters did not influence the I-V characteristic of the photodiodes, while the deposition of VO improved the photocurrent for smaller TNTs.
PB  - MDPI
T2  - Catalysts
T1  - Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal
IS  - 2
SP  - 352
VL  - 13
DO  - 10.3390/catal13020352
ER  - 

@article{
author = "Vujančević, Jelena and Andričević, Pavao and Đokić, Veljko and Blagojević, Vladimir and Pavlović, Vera P. and Ćirković, Jovana and Horváth, Endre and Forró, László and Karoui, Abdennaceur and Pavlović, Vladimir B. and Janaćković, Đorđe",
year = "2023",
abstract = "In this study, we report the influence of vanadium oxide (VO), as a photosensitive component, on the photoactivity of TiO2 nanotubes (TNTs). A series of TNTs of varying tube diameter were synthesized by the anodization of titanium foils at different voltages, while vanadium oxide was deposited on TNTs by wet chemical deposition. An improvement in the optical properties of nanotubes was observed after the deposition of vanadium oxide. An improvement in the optical properties (redshift in UV-Vis spectra) of TNTs and TNT/VO was noted. The photocatalytic activity was improved with increasing tube diameter, while it was weakened after the deposition of VO. Furthermore, photoactivity was investigated in photodiodes based on TNTs or TNT/VO and single crystals of CH3NH3PbI3. The photoelectric measurement revealed that different TNT diameters did not influence the I-V characteristic of the photodiodes, while the deposition of VO improved the photocurrent for smaller TNTs.",
publisher = "MDPI",
journal = "Catalysts",
title = "Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal",
number = "2",
pages = "352",
volume = "13",
doi = "10.3390/catal13020352"
}

Vujančević, J., Andričević, P., Đokić, V., Blagojević, V., Pavlović, V. P., Ćirković, J., Horváth, E., Forró, L., Karoui, A., Pavlović, V. B.,& Janaćković, Đ.. (2023). Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal. in Catalysts
MDPI., 13(2), 352.
https://doi.org/10.3390/catal13020352

Vujančević J, Andričević P, Đokić V, Blagojević V, Pavlović VP, Ćirković J, Horváth E, Forró L, Karoui A, Pavlović VB, Janaćković Đ. Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal. in Catalysts. 2023;13(2):352.
doi:10.3390/catal13020352 .

Vujančević, Jelena, Andričević, Pavao, Đokić, Veljko, Blagojević, Vladimir, Pavlović, Vera P., Ćirković, Jovana, Horváth, Endre, Forró, László, Karoui, Abdennaceur, Pavlović, Vladimir B., Janaćković, Đorđe, "Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal" in Catalysts, 13, no. 2 (2023):352,
https://doi.org/10.3390/catal13020352 . .

TY  - JOUR
AU  - Janićijević, Aleksandra
AU  - Filipović, Suzana
AU  - Sknepnek, Aleksandra
AU  - Vlahović, Branislav
AU  - Đorđević, Nenad
AU  - Kovačević, Danijela
AU  - Mirković, Miljana
AU  - Petronijević, Ivan
AU  - Živković, Predrag
AU  - Rogan, Jelena
AU  - Pavlović, Vladimir B.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6805
AB  - In the search for environmentally friendly materials with a wide range of properties, polymer composites have emerged as a promising alternative due to their multifunctional properties. This study focuses on the synthesis of composite materials consisting of four components: bacterial nanocellulose (BNC) modified with magnetic Fe3O4, and a mixture of BaTiO3 (BT) and polyvinylidene fluoride (PVDF). The BT powder was mechanically activated prior to mixing with PVDF. The influence of BT mechanical activation and BNC with magnetic particles on the PVDF matrix was investigated. The obtained composite films’ structural characteristics, morphology, and dielectric properties are presented. This research provides insights into the relationship between mechanical activation of the filler and structural and dielectric properties in the PVDF/BT/BNC/Fe3O4 system, creating the way for the development of materials with a wide range of diverse properties that support the concept of green technologies.
PB  - MDPI
T2  - Polymers
T1  - Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite
IS  - 20
SP  - 4080
VL  - 15
DO  - 10.3390/polym15204080
ER  - 

@article{
author = "Janićijević, Aleksandra and Filipović, Suzana and Sknepnek, Aleksandra and Vlahović, Branislav and Đorđević, Nenad and Kovačević, Danijela and Mirković, Miljana and Petronijević, Ivan and Živković, Predrag and Rogan, Jelena and Pavlović, Vladimir B.",
year = "2023",
abstract = "In the search for environmentally friendly materials with a wide range of properties, polymer composites have emerged as a promising alternative due to their multifunctional properties. This study focuses on the synthesis of composite materials consisting of four components: bacterial nanocellulose (BNC) modified with magnetic Fe3O4, and a mixture of BaTiO3 (BT) and polyvinylidene fluoride (PVDF). The BT powder was mechanically activated prior to mixing with PVDF. The influence of BT mechanical activation and BNC with magnetic particles on the PVDF matrix was investigated. The obtained composite films’ structural characteristics, morphology, and dielectric properties are presented. This research provides insights into the relationship between mechanical activation of the filler and structural and dielectric properties in the PVDF/BT/BNC/Fe3O4 system, creating the way for the development of materials with a wide range of diverse properties that support the concept of green technologies.",
publisher = "MDPI",
journal = "Polymers",
title = "Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite",
number = "20",
pages = "4080",
volume = "15",
doi = "10.3390/polym15204080"
}

Janićijević, A., Filipović, S., Sknepnek, A., Vlahović, B., Đorđević, N., Kovačević, D., Mirković, M., Petronijević, I., Živković, P., Rogan, J.,& Pavlović, V. B.. (2023). Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite. in Polymers
MDPI., 15(20), 4080.
https://doi.org/10.3390/polym15204080

Janićijević A, Filipović S, Sknepnek A, Vlahović B, Đorđević N, Kovačević D, Mirković M, Petronijević I, Živković P, Rogan J, Pavlović VB. Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite. in Polymers. 2023;15(20):4080.
doi:10.3390/polym15204080 .

Janićijević, Aleksandra, Filipović, Suzana, Sknepnek, Aleksandra, Vlahović, Branislav, Đorđević, Nenad, Kovačević, Danijela, Mirković, Miljana, Petronijević, Ivan, Živković, Predrag, Rogan, Jelena, Pavlović, Vladimir B., "Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite" in Polymers, 15, no. 20 (2023):4080,
https://doi.org/10.3390/polym15204080 . .

TY  - JOUR
AU  - Obradović, Nina
AU  - Filipović, Suzana
AU  - Fahrenholtz, William G.
AU  - Marinković, Bojan A.
AU  - Rogan, Jelena
AU  - Lević, Steva
AU  - Đorđević, Antonije
AU  - Pavlović, Vladimir B.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6467
AB  - Magnesium aluminate has the spinel structure along with good mechanical, chemical, and thermal properties. Magnesium aluminate has a wide range of applications including refractory ceramics, optically transparent ceramic windows, and armors. Its low dielectric permeability and low loss tangent enable its applications for integrated electronic devices, as well. In this paper, MgO and Al2O3 powders were mixed in a one-to-one molar ratio and calcined at temperatures ranging from 1500 to 1800°C to produce phase pure spinel. Thereafter, pellets were crushed and treated in a planetary ball mill for 60 min to obtain a fine powder. All powders were examined for phase composition, crystal structure, and morphology. The obtained results showed that by increasing the temperature, samples with higher density were synthesized. Milling for 1 h led to formation of larger particles, but finer powders after milling. XRPD and Raman spectroscopy showed disorder in the crystal structure after milling.
AB  - Магнезијум алуминат поседује структуру спинела и добра механичка, хемијска и термичка својства. Има широк спектар примене, укључујући рефракторну керамику, оружје и оптички транспарентна керамичка стакла. Ниска диелектрична пермеабилност и тангенс губитака пружају овој керамици примену и у електричним направама. У овом раду, прахови MgO и Al2O3 су помешани у моларном односу 1:1 и калцинисани на температурама између 1500°C и 1800°C да би се добио спинел. Након тога, узорци су смрвљени и механички активирани у млину током 60 минута да би се добио фини уситњен прах. Одређени су фазни састав, кристална структура и морфологија свих прахова. Резултати су показали да са порастом температуре расте и густина синтетисаних узорака. Млевење од 1 сата води ка формирању већих честица, али финијих прахова након млевења. XRPD и Раман спектроскопија указују на неуређену кристалну структуру након млевења.
PB  - International Institute for the Science of Sintering (IISS)
T2  - Science of Sintering
T1  - Morphological and Structural Characterization of MgAl2O4 Spinel
EP  - 10
IS  - 1
SP  - 1
VL  - 55
DO  - 10.2298/SOS2301001O
ER  - 

@article{
author = "Obradović, Nina and Filipović, Suzana and Fahrenholtz, William G. and Marinković, Bojan A. and Rogan, Jelena and Lević, Steva and Đorđević, Antonije and Pavlović, Vladimir B.",
year = "2023",
abstract = "Magnesium aluminate has the spinel structure along with good mechanical, chemical, and thermal properties. Magnesium aluminate has a wide range of applications including refractory ceramics, optically transparent ceramic windows, and armors. Its low dielectric permeability and low loss tangent enable its applications for integrated electronic devices, as well. In this paper, MgO and Al2O3 powders were mixed in a one-to-one molar ratio and calcined at temperatures ranging from 1500 to 1800°C to produce phase pure spinel. Thereafter, pellets were crushed and treated in a planetary ball mill for 60 min to obtain a fine powder. All powders were examined for phase composition, crystal structure, and morphology. The obtained results showed that by increasing the temperature, samples with higher density were synthesized. Milling for 1 h led to formation of larger particles, but finer powders after milling. XRPD and Raman spectroscopy showed disorder in the crystal structure after milling., Магнезијум алуминат поседује структуру спинела и добра механичка, хемијска и термичка својства. Има широк спектар примене, укључујући рефракторну керамику, оружје и оптички транспарентна керамичка стакла. Ниска диелектрична пермеабилност и тангенс губитака пружају овој керамици примену и у електричним направама. У овом раду, прахови MgO и Al2O3 су помешани у моларном односу 1:1 и калцинисани на температурама између 1500°C и 1800°C да би се добио спинел. Након тога, узорци су смрвљени и механички активирани у млину током 60 минута да би се добио фини уситњен прах. Одређени су фазни састав, кристална структура и морфологија свих прахова. Резултати су показали да са порастом температуре расте и густина синтетисаних узорака. Млевење од 1 сата води ка формирању већих честица, али финијих прахова након млевења. XRPD и Раман спектроскопија указују на неуређену кристалну структуру након млевења.",
publisher = "International Institute for the Science of Sintering (IISS)",
journal = "Science of Sintering",
title = "Morphological and Structural Characterization of MgAl2O4 Spinel",
pages = "10-1",
number = "1",
volume = "55",
doi = "10.2298/SOS2301001O"
}

Obradović, N., Filipović, S., Fahrenholtz, W. G., Marinković, B. A., Rogan, J., Lević, S., Đorđević, A.,& Pavlović, V. B.. (2023). Morphological and Structural Characterization of MgAl2O4 Spinel. in Science of Sintering
International Institute for the Science of Sintering (IISS)., 55(1), 1-10.
https://doi.org/10.2298/SOS2301001O

Obradović N, Filipović S, Fahrenholtz WG, Marinković BA, Rogan J, Lević S, Đorđević A, Pavlović VB. Morphological and Structural Characterization of MgAl2O4 Spinel. in Science of Sintering. 2023;55(1):1-10.
doi:10.2298/SOS2301001O .

Obradović, Nina, Filipović, Suzana, Fahrenholtz, William G., Marinković, Bojan A., Rogan, Jelena, Lević, Steva, Đorđević, Antonije, Pavlović, Vladimir B., "Morphological and Structural Characterization of MgAl2O4 Spinel" in Science of Sintering, 55, no. 1 (2023):1-10,
https://doi.org/10.2298/SOS2301001O . .

TY  - JOUR
AU  - Popović, Ana L.
AU  - Veličković, Zlate
AU  - Radovanović, Željko
AU  - Đolić, Maja
AU  - Pavlović, Vladimir
AU  - Marinković, Aleksandar D.
AU  - Grzetić, Jelena D.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5155
AB  - Highly effective lignin-based microspheres were prepared by inverse copolymerization of lignin (kraft) from suspension, with poly(ethylene imine) and amino-functionalized magnetite nanoparticles (A-LMS_Fe3O4) or manganese(IV)oxide nanoparticles (A-LMS_MnO2). The XRD, FTIR, SEM, BET, TEM techniques, including the porosity determination, were performed to analyze morphological and structural properties of synthesized microspheres. The effect of pH, the adsorbent dosage, temperature and contact duration on a batch-mode adsorption efficiency of arsenate and chromate (oxy)anions removal was tested. Spontaneous adsorption was found to be feasible, reaching the adsorption capacities of Cr(VI) (62.9 mg g-1), As(V) (47.8 mg g-1) by A-LMS_Fe3O4, and of Cr(VI) (73.9 mg g-1), As(V) (62.5 mg g-1) using A-LMS_MnO2 adsorbent. Fast removal rates were confirmed via kinetic study, using pseudo-second order, the Weber-Morris and the single resistance mass-transfer model, with a limiting step of the diffusion transport through pores. The correlation of fixed-bed-column results with Bohart-Adams, Thomas, Yoon-Nelson and Dose Response models displayed that breakthrough behavior was influenced by flow rate and the inlet concentration. Significant potential of produced bio-adsorbent is further confirmed by the pore surface diffusion modeling, desorption study and adsorption from multi-component system using artificial water.
PB  - Elsevier Ltd.
T2  - Journal of Environmental Chemical Engineering
T1  - Hybrid amino-terminated lignin microspheres loaded with magnetite and manganese oxide nanoparticles: An effective hazardous oxyanions adsorbent
IS  - 3
SP  - 108009
VL  - 10
DO  - 10.1016/j.jece.2022.108009
ER  - 

@article{
author = "Popović, Ana L. and Veličković, Zlate and Radovanović, Željko and Đolić, Maja and Pavlović, Vladimir and Marinković, Aleksandar D. and Grzetić, Jelena D.",
year = "2022",
abstract = "Highly effective lignin-based microspheres were prepared by inverse copolymerization of lignin (kraft) from suspension, with poly(ethylene imine) and amino-functionalized magnetite nanoparticles (A-LMS_Fe3O4) or manganese(IV)oxide nanoparticles (A-LMS_MnO2). The XRD, FTIR, SEM, BET, TEM techniques, including the porosity determination, were performed to analyze morphological and structural properties of synthesized microspheres. The effect of pH, the adsorbent dosage, temperature and contact duration on a batch-mode adsorption efficiency of arsenate and chromate (oxy)anions removal was tested. Spontaneous adsorption was found to be feasible, reaching the adsorption capacities of Cr(VI) (62.9 mg g-1), As(V) (47.8 mg g-1) by A-LMS_Fe3O4, and of Cr(VI) (73.9 mg g-1), As(V) (62.5 mg g-1) using A-LMS_MnO2 adsorbent. Fast removal rates were confirmed via kinetic study, using pseudo-second order, the Weber-Morris and the single resistance mass-transfer model, with a limiting step of the diffusion transport through pores. The correlation of fixed-bed-column results with Bohart-Adams, Thomas, Yoon-Nelson and Dose Response models displayed that breakthrough behavior was influenced by flow rate and the inlet concentration. Significant potential of produced bio-adsorbent is further confirmed by the pore surface diffusion modeling, desorption study and adsorption from multi-component system using artificial water.",
publisher = "Elsevier Ltd.",
journal = "Journal of Environmental Chemical Engineering",
title = "Hybrid amino-terminated lignin microspheres loaded with magnetite and manganese oxide nanoparticles: An effective hazardous oxyanions adsorbent",
number = "3",
pages = "108009",
volume = "10",
doi = "10.1016/j.jece.2022.108009"
}

Popović, A. L., Veličković, Z., Radovanović, Ž., Đolić, M., Pavlović, V., Marinković, A. D.,& Grzetić, J. D.. (2022). Hybrid amino-terminated lignin microspheres loaded with magnetite and manganese oxide nanoparticles: An effective hazardous oxyanions adsorbent. in Journal of Environmental Chemical Engineering
Elsevier Ltd.., 10(3), 108009.
https://doi.org/10.1016/j.jece.2022.108009

Popović AL, Veličković Z, Radovanović Ž, Đolić M, Pavlović V, Marinković AD, Grzetić JD. Hybrid amino-terminated lignin microspheres loaded with magnetite and manganese oxide nanoparticles: An effective hazardous oxyanions adsorbent. in Journal of Environmental Chemical Engineering. 2022;10(3):108009.
doi:10.1016/j.jece.2022.108009 .

Popović, Ana L., Veličković, Zlate, Radovanović, Željko, Đolić, Maja, Pavlović, Vladimir, Marinković, Aleksandar D., Grzetić, Jelena D., "Hybrid amino-terminated lignin microspheres loaded with magnetite and manganese oxide nanoparticles: An effective hazardous oxyanions adsorbent" in Journal of Environmental Chemical Engineering, 10, no. 3 (2022):108009,
https://doi.org/10.1016/j.jece.2022.108009 . .

TY  - JOUR
AU  - Ivanovic, Marija
AU  - Nenadovic, Snezana
AU  - Pavlovic, Vera P.
AU  - Radović, Ivona
AU  - Kijevčanin, Mirjana
AU  - Pavlović, Vladimir B.
AU  - Kljajevic, Ljiljana
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4869
AB  - Thermodynamic parameters (densities, viscosities, speed of sound, and refractive index) of four series of alkaline activators were determined over the temperature range from 15 to 60 degrees C for the process of geopolymerization. Mixtures of Na2SiO3 and NaOH of different molar concentrations ( from 2M to 8M with step 2) were used as an alkaline activator. The sample with the highest NaOH concentration also shows the highest values of all thermodynamic parameters. Metakaolin, obtained by calcination of kaolin at 750 degrees C, was used as the starting material. The samples were characterized by X-ray diffraction (XRD), FTIR and Raman spectroscopy, Scanning Electron Microscopy (SEM), and Energy-Dispersive X-Ray (EDX) Spectroscopy. Results of FTIR analysis correlated with results of Raman Spectroscopy. Due to the polymerization process, the changes in the phonon spectrum were confirmed. The different concentrations of activators do not notably change the Si/Al ratio.
T2  - Macedonian Journal of Chemistry and Chemical Engineering
T1  - The influence of thermodynamic parameters on alkaline activators of geopolymers and the structure of geopolymers
EP  - 117
IS  - 1
SP  - 107
VL  - 40
DO  - 10.20450/mjcce.2021.2127
ER  - 

@article{
author = "Ivanovic, Marija and Nenadovic, Snezana and Pavlovic, Vera P. and Radović, Ivona and Kijevčanin, Mirjana and Pavlović, Vladimir B. and Kljajevic, Ljiljana",
year = "2021",
abstract = "Thermodynamic parameters (densities, viscosities, speed of sound, and refractive index) of four series of alkaline activators were determined over the temperature range from 15 to 60 degrees C for the process of geopolymerization. Mixtures of Na2SiO3 and NaOH of different molar concentrations ( from 2M to 8M with step 2) were used as an alkaline activator. The sample with the highest NaOH concentration also shows the highest values of all thermodynamic parameters. Metakaolin, obtained by calcination of kaolin at 750 degrees C, was used as the starting material. The samples were characterized by X-ray diffraction (XRD), FTIR and Raman spectroscopy, Scanning Electron Microscopy (SEM), and Energy-Dispersive X-Ray (EDX) Spectroscopy. Results of FTIR analysis correlated with results of Raman Spectroscopy. Due to the polymerization process, the changes in the phonon spectrum were confirmed. The different concentrations of activators do not notably change the Si/Al ratio.",
journal = "Macedonian Journal of Chemistry and Chemical Engineering",
title = "The influence of thermodynamic parameters on alkaline activators of geopolymers and the structure of geopolymers",
pages = "117-107",
number = "1",
volume = "40",
doi = "10.20450/mjcce.2021.2127"
}

Ivanovic, M., Nenadovic, S., Pavlovic, V. P., Radović, I., Kijevčanin, M., Pavlović, V. B.,& Kljajevic, L.. (2021). The influence of thermodynamic parameters on alkaline activators of geopolymers and the structure of geopolymers. in Macedonian Journal of Chemistry and Chemical Engineering, 40(1), 107-117.
https://doi.org/10.20450/mjcce.2021.2127

Ivanovic M, Nenadovic S, Pavlovic VP, Radović I, Kijevčanin M, Pavlović VB, Kljajevic L. The influence of thermodynamic parameters on alkaline activators of geopolymers and the structure of geopolymers. in Macedonian Journal of Chemistry and Chemical Engineering. 2021;40(1):107-117.
doi:10.20450/mjcce.2021.2127 .

Ivanovic, Marija, Nenadovic, Snezana, Pavlovic, Vera P., Radović, Ivona, Kijevčanin, Mirjana, Pavlović, Vladimir B., Kljajevic, Ljiljana, "The influence of thermodynamic parameters on alkaline activators of geopolymers and the structure of geopolymers" in Macedonian Journal of Chemistry and Chemical Engineering, 40, no. 1 (2021):107-117,
https://doi.org/10.20450/mjcce.2021.2127 . .

TY  - JOUR
AU  - Jovanović, Aleksandra
AU  - Levic, Steva M.
AU  - Pavlović, Vladimir B.
AU  - Markovic, Smilja B.
AU  - Pjanović, Rada
AU  - Đorđević, Verica
AU  - Nedović, Viktor
AU  - Bugarski, Branko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4863
AB  - Freeze drying was compared with spray drying regarding feasibility to process wild thyme drugs in order to obtain dry formulations at laboratory scale starting from liquid extracts produced by different extraction methods: maceration and heat-, ultrasound-, and microwave-assisted extractions. Higher total powder yield (based on the dry weight prior to extraction) was achieved by freeze than spray drying and lower loss of total polyphenol content (TPC) and total flavonoid content (TFC) due to the drying process. Gelatin as a coating agent (5% w/w) provided better TPC recovery by 70% in case of lyophilization and higher total powder yield in case of spray drying by diminishing material deposition on the wall of the drying chamber. The resulting gelatin-free and gelatin-containing powders carried polyphenols in amount similar to 190 and 53-75 mg gallic acid equivalents GAE/g of powder, respectively. Microwave-assisted extract formulation was distinguished from the others by a higher content of polyphenols, proteins and sugars, higher bulk density and lower solubility. The type of the drying process mainly affected the position of the gelatin-derived -OH and amide bands in FTIR spectra. Spray-dried formulations compared to freeze-dried expressed higher thermal stability as confirmed by differential scanning calorimetry analysis and a higher diffusion coefficient; the last feature can be associated with the lower specific surface area of irregularly shaped freeze-dried particles (151-223 mu m) compared to small microspheres (similar to 8 mu m) in spray-dried powder.
T2  - Molecules
T1  - Freeze vs. Spray Drying for Dry Wild Thyme (Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material
IS  - 13
VL  - 26
DO  - 10.3390/molecules26133933
ER  - 

@article{
author = "Jovanović, Aleksandra and Levic, Steva M. and Pavlović, Vladimir B. and Markovic, Smilja B. and Pjanović, Rada and Đorđević, Verica and Nedović, Viktor and Bugarski, Branko",
year = "2021",
abstract = "Freeze drying was compared with spray drying regarding feasibility to process wild thyme drugs in order to obtain dry formulations at laboratory scale starting from liquid extracts produced by different extraction methods: maceration and heat-, ultrasound-, and microwave-assisted extractions. Higher total powder yield (based on the dry weight prior to extraction) was achieved by freeze than spray drying and lower loss of total polyphenol content (TPC) and total flavonoid content (TFC) due to the drying process. Gelatin as a coating agent (5% w/w) provided better TPC recovery by 70% in case of lyophilization and higher total powder yield in case of spray drying by diminishing material deposition on the wall of the drying chamber. The resulting gelatin-free and gelatin-containing powders carried polyphenols in amount similar to 190 and 53-75 mg gallic acid equivalents GAE/g of powder, respectively. Microwave-assisted extract formulation was distinguished from the others by a higher content of polyphenols, proteins and sugars, higher bulk density and lower solubility. The type of the drying process mainly affected the position of the gelatin-derived -OH and amide bands in FTIR spectra. Spray-dried formulations compared to freeze-dried expressed higher thermal stability as confirmed by differential scanning calorimetry analysis and a higher diffusion coefficient; the last feature can be associated with the lower specific surface area of irregularly shaped freeze-dried particles (151-223 mu m) compared to small microspheres (similar to 8 mu m) in spray-dried powder.",
journal = "Molecules",
title = "Freeze vs. Spray Drying for Dry Wild Thyme (Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material",
number = "13",
volume = "26",
doi = "10.3390/molecules26133933"
}

Jovanović, A., Levic, S. M., Pavlović, V. B., Markovic, S. B., Pjanović, R., Đorđević, V., Nedović, V.,& Bugarski, B.. (2021). Freeze vs. Spray Drying for Dry Wild Thyme (Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material. in Molecules, 26(13).
https://doi.org/10.3390/molecules26133933

Jovanović A, Levic SM, Pavlović VB, Markovic SB, Pjanović R, Đorđević V, Nedović V, Bugarski B. Freeze vs. Spray Drying for Dry Wild Thyme (Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material. in Molecules. 2021;26(13).
doi:10.3390/molecules26133933 .

Jovanović, Aleksandra, Levic, Steva M., Pavlović, Vladimir B., Markovic, Smilja B., Pjanović, Rada, Đorđević, Verica, Nedović, Viktor, Bugarski, Branko, "Freeze vs. Spray Drying for Dry Wild Thyme (Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material" in Molecules, 26, no. 13 (2021),
https://doi.org/10.3390/molecules26133933 . .

TY  - CONF
AU  - Tomić, Nataša
AU  - Vuksanović, Marija
AU  - Kalifa, Mustafa
AU  - Stojanović, Dušica
AU  - Pavlović, Vladimir
AU  - Balanč, Bojana
AU  - Jančić Heinemann, Radmila
AU  - Marinković, Aleksandar
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6932
AB  - The aim of this study is to investigate the in uence of the polyhedral oligo silsesquioxanes (POSS)
structure obtained by facile synthesis on the improvement in mechanical properties of acrylate composite
 lms. The composite  lms consist of UV cured Bisphenol A glycidylmethacrylate/triethylene glycol
dimethacrylate (Bis-GMA/TEGDMA) as matrix and reactive POSS structures as reinforcement. Introduced
functionalities considering hydroxyl, both hydroxyl and allyl, and methacrylate groups in POSS-M,
POSS-M-A and POSS-M-Cl, respectively, enabled optimization of system compatibility. Composites
were made with 1, 3 and 5 wt. % of POSS particles. A morphology of hybrid composites was examined
by transmission electron microscopy (TEM). Cross-linking density (3), storage modulus (G'), damping
factor (tanδ) and Tg of the composites were determined from the dynamic-mechanical analysis (DMA).
A higher amount of methacrylate groups contributed to the increased cross-linking points and thus to
increased storage modulus for composites with POSS-M-Cl. Micro Vickers hardness (HV) of hybrid
composites showed incompatibility of POSS-M particles with Bis-GMA/TEGDMA matrix that led to
a decrease of composite hardness when compared to neat polymer matrix. The highest hardness
improvement was obtained by the addition of POSS-M-A reinforcement (increase by 50%). Brazilian
test was used to estimate the elastic modulus by the indirect test method and it indicated a decrease
in mechanical properties with the POSS addition higher than 1 wt.%. Methods used in this paper for
estimation of reinforcing e ect clearly indicate that the incompletely condensed POSS-M-A exhibit the optimal performance of composites based on Bis-GMA/TEGDMA matrix due to the presence of both
hydroxyl and allyl functional group.
PB  - Lisbon : Instituto Superior Tecnico
C3  - Book of Abstracts / 5th International Conference on Mechanics of Composites, MECHCOMP 2019, Instituto Superior Técnico, Lisbon, Portugal, 1-4 July 2019
T1  - Effect of novel nanocrystalline polyhedral oligo silesquioxanes (POSS) on the hybrid acrylate composites performance
EP  - 208
SP  - 207
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6932
ER  - 

@conference{
author = "Tomić, Nataša and Vuksanović, Marija and Kalifa, Mustafa and Stojanović, Dušica and Pavlović, Vladimir and Balanč, Bojana and Jančić Heinemann, Radmila and Marinković, Aleksandar",
year = "2019",
abstract = "The aim of this study is to investigate the in uence of the polyhedral oligo silsesquioxanes (POSS)
structure obtained by facile synthesis on the improvement in mechanical properties of acrylate composite
 lms. The composite  lms consist of UV cured Bisphenol A glycidylmethacrylate/triethylene glycol
dimethacrylate (Bis-GMA/TEGDMA) as matrix and reactive POSS structures as reinforcement. Introduced
functionalities considering hydroxyl, both hydroxyl and allyl, and methacrylate groups in POSS-M,
POSS-M-A and POSS-M-Cl, respectively, enabled optimization of system compatibility. Composites
were made with 1, 3 and 5 wt. % of POSS particles. A morphology of hybrid composites was examined
by transmission electron microscopy (TEM). Cross-linking density (3), storage modulus (G'), damping
factor (tanδ) and Tg of the composites were determined from the dynamic-mechanical analysis (DMA).
A higher amount of methacrylate groups contributed to the increased cross-linking points and thus to
increased storage modulus for composites with POSS-M-Cl. Micro Vickers hardness (HV) of hybrid
composites showed incompatibility of POSS-M particles with Bis-GMA/TEGDMA matrix that led to
a decrease of composite hardness when compared to neat polymer matrix. The highest hardness
improvement was obtained by the addition of POSS-M-A reinforcement (increase by 50%). Brazilian
test was used to estimate the elastic modulus by the indirect test method and it indicated a decrease
in mechanical properties with the POSS addition higher than 1 wt.%. Methods used in this paper for
estimation of reinforcing e ect clearly indicate that the incompletely condensed POSS-M-A exhibit the optimal performance of composites based on Bis-GMA/TEGDMA matrix due to the presence of both
hydroxyl and allyl functional group.",
publisher = "Lisbon : Instituto Superior Tecnico",
journal = "Book of Abstracts / 5th International Conference on Mechanics of Composites, MECHCOMP 2019, Instituto Superior Técnico, Lisbon, Portugal, 1-4 July 2019",
title = "Effect of novel nanocrystalline polyhedral oligo silesquioxanes (POSS) on the hybrid acrylate composites performance",
pages = "208-207",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6932"
}

Tomić, N., Vuksanović, M., Kalifa, M., Stojanović, D., Pavlović, V., Balanč, B., Jančić Heinemann, R.,& Marinković, A.. (2019). Effect of novel nanocrystalline polyhedral oligo silesquioxanes (POSS) on the hybrid acrylate composites performance. in Book of Abstracts / 5th International Conference on Mechanics of Composites, MECHCOMP 2019, Instituto Superior Técnico, Lisbon, Portugal, 1-4 July 2019
Lisbon : Instituto Superior Tecnico., 207-208.
https://hdl.handle.net/21.15107/rcub_technorep_6932

Tomić N, Vuksanović M, Kalifa M, Stojanović D, Pavlović V, Balanč B, Jančić Heinemann R, Marinković A. Effect of novel nanocrystalline polyhedral oligo silesquioxanes (POSS) on the hybrid acrylate composites performance. in Book of Abstracts / 5th International Conference on Mechanics of Composites, MECHCOMP 2019, Instituto Superior Técnico, Lisbon, Portugal, 1-4 July 2019. 2019;:207-208.
https://hdl.handle.net/21.15107/rcub_technorep_6932 .

Tomić, Nataša, Vuksanović, Marija, Kalifa, Mustafa, Stojanović, Dušica, Pavlović, Vladimir, Balanč, Bojana, Jančić Heinemann, Radmila, Marinković, Aleksandar, "Effect of novel nanocrystalline polyhedral oligo silesquioxanes (POSS) on the hybrid acrylate composites performance" in Book of Abstracts / 5th International Conference on Mechanics of Composites, MECHCOMP 2019, Instituto Superior Técnico, Lisbon, Portugal, 1-4 July 2019 (2019):207-208,
https://hdl.handle.net/21.15107/rcub_technorep_6932 .