TY  - JOUR
AU  - Milojkov, Dušan V.
AU  - Radosavljević-Mihajlović, Ana S.
AU  - Stanić, Vojislav
AU  - Nastasijević, Branislav J.
AU  - Radotić, Ksenija
AU  - Janković-Častvan, Ivona
AU  - Živković-Radovanović, Vukosava
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10612
AB  - Nanomaterials based on metal–doped fluorapatite (FAP) have attracted considerable interest as potential next–generation antimicrobial agents. In this study, Cu2+–doped FAP nanocrystals have been successfully synthesized by a neutralization method at room temperature. Their structural, optical, antimicrobial, and hemcompatible properties have been investigated. XRD, FTIR, FESEM, and N2 adsorption–desorption studies indicate the formation of single–phase FAP mesoporous nanopowders, composed of rod–like particles. TEM images confirmed the formation of nanorodes with a length of 60 nm and a width of about 18 nm. Rietveld analysis shows that the Cu2+ ions preferentially substitute Ca2 (6 h) sites in the hexagonal fluorapatite crystal structure. Fluorescence spectroscopy accompanied by MCR–ALS method confirms substitution of Cu2+ ions in FAP crystal lattice with extracting additional d–d band transition at green color from FAP broadband self–activated luminescence in violet–blue color. Antimicrobial studies conducted on Staphylococcus aureus, Escherichia coli and Micrococcus lysodeikticus showed that FAP nanopowder with the highest Cu2+ content have strong bacteriostatic action on Staphylococcus aureus bacterial strain in mediums containing nutrition matters. In addition, this sample in comparison to pure FAP achieved a high percentage of relative reduction of bacterial population for all three species, being >90% in most cases. Fungistatic action is noticed too, throwgh the slowing down mycelium growth of fungus Aspergillus niger, Aspergillus flavus and Penicillium roqueforti and reduction of sporulation of Aspergillus niger species. Cu2+–doped FAP nanocrystals shows a synergistic antimicrobial effect with Cu2+ and F− ions. Concerning the potential biomedical applications, the hemolysis ratios of the Cu2+–doped FAP samples were below 5%. The obtained results pointed out the possible use of the synthesized nanocrystals as broad–spectrum antimicrobial agents for various biomedical and health care preparations.
T2  - Journal of Photochemistry and Photobiology B: Biology
T1  - Synthesis and characterization of luminescent Cu2+–doped fluorapatite nanocrystals as potential broad–spectrum antimicrobial agents
VL  - 239
SP  - 112649
DO  - 10.1016/j.jphotobiol.2023.112649
ER  - 

@article{
author = "Milojkov, Dušan V. and Radosavljević-Mihajlović, Ana S. and Stanić, Vojislav and Nastasijević, Branislav J. and Radotić, Ksenija and Janković-Častvan, Ivona and Živković-Radovanović, Vukosava",
year = "2023",
abstract = "Nanomaterials based on metal–doped fluorapatite (FAP) have attracted considerable interest as potential next–generation antimicrobial agents. In this study, Cu2+–doped FAP nanocrystals have been successfully synthesized by a neutralization method at room temperature. Their structural, optical, antimicrobial, and hemcompatible properties have been investigated. XRD, FTIR, FESEM, and N2 adsorption–desorption studies indicate the formation of single–phase FAP mesoporous nanopowders, composed of rod–like particles. TEM images confirmed the formation of nanorodes with a length of 60 nm and a width of about 18 nm. Rietveld analysis shows that the Cu2+ ions preferentially substitute Ca2 (6 h) sites in the hexagonal fluorapatite crystal structure. Fluorescence spectroscopy accompanied by MCR–ALS method confirms substitution of Cu2+ ions in FAP crystal lattice with extracting additional d–d band transition at green color from FAP broadband self–activated luminescence in violet–blue color. Antimicrobial studies conducted on Staphylococcus aureus, Escherichia coli and Micrococcus lysodeikticus showed that FAP nanopowder with the highest Cu2+ content have strong bacteriostatic action on Staphylococcus aureus bacterial strain in mediums containing nutrition matters. In addition, this sample in comparison to pure FAP achieved a high percentage of relative reduction of bacterial population for all three species, being >90% in most cases. Fungistatic action is noticed too, throwgh the slowing down mycelium growth of fungus Aspergillus niger, Aspergillus flavus and Penicillium roqueforti and reduction of sporulation of Aspergillus niger species. Cu2+–doped FAP nanocrystals shows a synergistic antimicrobial effect with Cu2+ and F− ions. Concerning the potential biomedical applications, the hemolysis ratios of the Cu2+–doped FAP samples were below 5%. The obtained results pointed out the possible use of the synthesized nanocrystals as broad–spectrum antimicrobial agents for various biomedical and health care preparations.",
journal = "Journal of Photochemistry and Photobiology B: Biology",
title = "Synthesis and characterization of luminescent Cu2+–doped fluorapatite nanocrystals as potential broad–spectrum antimicrobial agents",
volume = "239",
pages = "112649",
doi = "10.1016/j.jphotobiol.2023.112649"
}

Milojkov, D. V., Radosavljević-Mihajlović, A. S., Stanić, V., Nastasijević, B. J., Radotić, K., Janković-Častvan, I.,& Živković-Radovanović, V.. (2023). Synthesis and characterization of luminescent Cu2+–doped fluorapatite nanocrystals as potential broad–spectrum antimicrobial agents. in Journal of Photochemistry and Photobiology B: Biology, 239, 112649.
https://doi.org/10.1016/j.jphotobiol.2023.112649

Milojkov DV, Radosavljević-Mihajlović AS, Stanić V, Nastasijević BJ, Radotić K, Janković-Častvan I, Živković-Radovanović V. Synthesis and characterization of luminescent Cu2+–doped fluorapatite nanocrystals as potential broad–spectrum antimicrobial agents. in Journal of Photochemistry and Photobiology B: Biology. 2023;239:112649.
doi:10.1016/j.jphotobiol.2023.112649 .

Milojkov, Dušan V., Radosavljević-Mihajlović, Ana S., Stanić, Vojislav, Nastasijević, Branislav J., Radotić, Ksenija, Janković-Častvan, Ivona, Živković-Radovanović, Vukosava, "Synthesis and characterization of luminescent Cu2+–doped fluorapatite nanocrystals as potential broad–spectrum antimicrobial agents" in Journal of Photochemistry and Photobiology B: Biology, 239 (2023):112649,
https://doi.org/10.1016/j.jphotobiol.2023.112649 . .

TY  - JOUR
AU  - Katnić, Đurica
AU  - Marinović-Cincović, Milena
AU  - Porobić, Slavica
AU  - Vujčić, Ivica
AU  - Šaponjić, Aleksandra
AU  - Sikirić, Biljana
AU  - Živojinović, Dragana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10230
AB  - Redirecting waste biomass back into the economy can reduce their burden on the environment. The use of waste biomass for the production of fuels, value-added materials or natural fillers has significant economic and environmental benefits. Physico-chemical characterization of waste biomass (plum pomace and fig pomace) was done by proximate, elemental, biochemical analysis, FTIR and SEM analysis. The calorific value of both biomasses can be compared with the calorific value of lignite, which rises their potential use as a solid biofuel. The combustion behavior of biomass was investigated by thermal analysis techniques. Based on thermal degradation experiments performed at four heating rates a kinetic analysis of the biomass decomposition process was accomplished. The kinetic study was done using Kissinger method, Ozawa method, Flynn-Wall-Ozawa (FWO) method, Starink method, and Kissinger-Akahira-Sunose (KAS) method. The value of activation energy obtained by different kinetic methods was ∼210 kJ/mol for plum pomace and ∼162 kJ/mol for fig pomace. Estimated activation energy values were used to calculate thermodynamic parameters. In addition to the fact that the obtained results can serve as a useful reference for the design of pyrolysis reactors, this research has ecological significance because it solves the problem of solid waste disposal.
T2  - Journal of Cleaner Production
T1  - Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass
VL  - 352
SP  - 131637
DO  - 10.1016/j.jclepro.2022.131637
ER  - 

@article{
author = "Katnić, Đurica and Marinović-Cincović, Milena and Porobić, Slavica and Vujčić, Ivica and Šaponjić, Aleksandra and Sikirić, Biljana and Živojinović, Dragana",
year = "2022",
abstract = "Redirecting waste biomass back into the economy can reduce their burden on the environment. The use of waste biomass for the production of fuels, value-added materials or natural fillers has significant economic and environmental benefits. Physico-chemical characterization of waste biomass (plum pomace and fig pomace) was done by proximate, elemental, biochemical analysis, FTIR and SEM analysis. The calorific value of both biomasses can be compared with the calorific value of lignite, which rises their potential use as a solid biofuel. The combustion behavior of biomass was investigated by thermal analysis techniques. Based on thermal degradation experiments performed at four heating rates a kinetic analysis of the biomass decomposition process was accomplished. The kinetic study was done using Kissinger method, Ozawa method, Flynn-Wall-Ozawa (FWO) method, Starink method, and Kissinger-Akahira-Sunose (KAS) method. The value of activation energy obtained by different kinetic methods was ∼210 kJ/mol for plum pomace and ∼162 kJ/mol for fig pomace. Estimated activation energy values were used to calculate thermodynamic parameters. In addition to the fact that the obtained results can serve as a useful reference for the design of pyrolysis reactors, this research has ecological significance because it solves the problem of solid waste disposal.",
journal = "Journal of Cleaner Production",
title = "Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass",
volume = "352",
pages = "131637",
doi = "10.1016/j.jclepro.2022.131637"
}

Katnić, Đ., Marinović-Cincović, M., Porobić, S., Vujčić, I., Šaponjić, A., Sikirić, B.,& Živojinović, D.. (2022). Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass. in Journal of Cleaner Production, 352, 131637.
https://doi.org/10.1016/j.jclepro.2022.131637

Katnić Đ, Marinović-Cincović M, Porobić S, Vujčić I, Šaponjić A, Sikirić B, Živojinović D. Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass. in Journal of Cleaner Production. 2022;352:131637.
doi:10.1016/j.jclepro.2022.131637 .

Katnić, Đurica, Marinović-Cincović, Milena, Porobić, Slavica, Vujčić, Ivica, Šaponjić, Aleksandra, Sikirić, Biljana, Živojinović, Dragana, "Characterization and kinetics of thermal decomposition behavior of plum and fig pomace biomass" in Journal of Cleaner Production, 352 (2022):131637,
https://doi.org/10.1016/j.jclepro.2022.131637 . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Meseldžija, Slađana
AU  - Cabrera-Barjas, Gustavo
AU  - Onjia, Antonije E.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10149
AB  - Pectin is a natural biopolymer with broad applications in the food industry and it is suitable to prepare edible films to prolong food shelf-life. However, the main limitation of pectin-based films is their poor mechanical and barrier properties. Zeolite Y is a hydrophobic clay that can be used as film reinforcement material to improve its physicochemical and mechanical properties. In this work, the influence of high methoxyl citrus and apple pectin on physicochemical properties of biopolymer films modified with zeolite Y (0.05–0.2 wt%) was investigated. The films were characterized by FTIR, TGA, WAXD, mechanical analysis, and water vapor permeability analysis, and a potential film application is presented. The WAXD and FTIR analysis demonstrated that the strongest interaction between pectin chains and zeolite Y occurred when citrus high methylated pectin was used. Adding 0.2 wt% of zeolite Y into citrus high methylated pectin matrix enhanced the tensile strength by 66%, thermal stability by 13%, and water vapor barrier by 54%. In addition, fruit shelf-life test was performed, where strawberries were sealed in film. It was shown that sealed strawberries maintained a better color and healthy appearance than the control treatment after 7 days at 10◦ C. This study enabled the development of biocomposite films with improved properties for potential application in food packaging. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
T2  - Foods
T1  - Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications
VL  - 11
IS  - 3
SP  - 360
DO  - 10.3390/foods11030360
ER  - 

@article{
author = "Nešić, Aleksandra and Meseldžija, Slađana and Cabrera-Barjas, Gustavo and Onjia, Antonije E.",
year = "2022",
abstract = "Pectin is a natural biopolymer with broad applications in the food industry and it is suitable to prepare edible films to prolong food shelf-life. However, the main limitation of pectin-based films is their poor mechanical and barrier properties. Zeolite Y is a hydrophobic clay that can be used as film reinforcement material to improve its physicochemical and mechanical properties. In this work, the influence of high methoxyl citrus and apple pectin on physicochemical properties of biopolymer films modified with zeolite Y (0.05–0.2 wt%) was investigated. The films were characterized by FTIR, TGA, WAXD, mechanical analysis, and water vapor permeability analysis, and a potential film application is presented. The WAXD and FTIR analysis demonstrated that the strongest interaction between pectin chains and zeolite Y occurred when citrus high methylated pectin was used. Adding 0.2 wt% of zeolite Y into citrus high methylated pectin matrix enhanced the tensile strength by 66%, thermal stability by 13%, and water vapor barrier by 54%. In addition, fruit shelf-life test was performed, where strawberries were sealed in film. It was shown that sealed strawberries maintained a better color and healthy appearance than the control treatment after 7 days at 10◦ C. This study enabled the development of biocomposite films with improved properties for potential application in food packaging. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.",
journal = "Foods",
title = "Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications",
volume = "11",
number = "3",
pages = "360",
doi = "10.3390/foods11030360"
}

Nešić, A., Meseldžija, S., Cabrera-Barjas, G.,& Onjia, A. E.. (2022). Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications. in Foods, 11(3), 360.
https://doi.org/10.3390/foods11030360

Nešić A, Meseldžija S, Cabrera-Barjas G, Onjia AE. Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications. in Foods. 2022;11(3):360.
doi:10.3390/foods11030360 .

Nešić, Aleksandra, Meseldžija, Slađana, Cabrera-Barjas, Gustavo, Onjia, Antonije E., "Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications" in Foods, 11, no. 3 (2022):360,
https://doi.org/10.3390/foods11030360 . .

TY  - JOUR
AU  - Cabrera-Barjas, Gustavo
AU  - Nešić, Aleksandra
AU  - Bravo-Arrepol, Gaston
AU  - Rodríguez-Llamazares, Saddys
AU  - Valdés, Oscar
AU  - Banerjee, Aparna
AU  - Castaño, Johanna
AU  - Delattre, Cédric
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10100
AB  - This study investigated the biocomposite pectin films enriched with murta (Ugni molinae T.) seed polyphenolic extract and reinforced by chitin nanofiber. The structural, morphological, mechanical, barrier, colorimetric, and antioxidant activity of films were evaluated. The obtained data clearly demonstrated that the addition of murta seed extract and the high load of chitin nanofibers (50%) provided more cohesive and dense morphology of films and improved the mechanical resistance and water vapor barrier in comparison to the control pectin film. The antioxidant activity ranged between 71% and 86%, depending on the film formulation and concentration of chitin nanofibers. The presented results highlight the potential use of chitin nanofibers and murta seed extract in the pectin matrix to be applied in functional food coatings and packaging, as a sustainable solution.
T2  - Molecules
T1  - Bioactive Pectin-Murta (Ugni molinae T.) Seed Extract Films Reinforced with Chitin Fibers
VL  - 26
IS  - 24
SP  - 7477
DO  - 10.3390/molecules26247477
ER  - 

@article{
author = "Cabrera-Barjas, Gustavo and Nešić, Aleksandra and Bravo-Arrepol, Gaston and Rodríguez-Llamazares, Saddys and Valdés, Oscar and Banerjee, Aparna and Castaño, Johanna and Delattre, Cédric",
year = "2021",
abstract = "This study investigated the biocomposite pectin films enriched with murta (Ugni molinae T.) seed polyphenolic extract and reinforced by chitin nanofiber. The structural, morphological, mechanical, barrier, colorimetric, and antioxidant activity of films were evaluated. The obtained data clearly demonstrated that the addition of murta seed extract and the high load of chitin nanofibers (50%) provided more cohesive and dense morphology of films and improved the mechanical resistance and water vapor barrier in comparison to the control pectin film. The antioxidant activity ranged between 71% and 86%, depending on the film formulation and concentration of chitin nanofibers. The presented results highlight the potential use of chitin nanofibers and murta seed extract in the pectin matrix to be applied in functional food coatings and packaging, as a sustainable solution.",
journal = "Molecules",
title = "Bioactive Pectin-Murta (Ugni molinae T.) Seed Extract Films Reinforced with Chitin Fibers",
volume = "26",
number = "24",
pages = "7477",
doi = "10.3390/molecules26247477"
}

Cabrera-Barjas, G., Nešić, A., Bravo-Arrepol, G., Rodríguez-Llamazares, S., Valdés, O., Banerjee, A., Castaño, J.,& Delattre, C.. (2021). Bioactive Pectin-Murta (Ugni molinae T.) Seed Extract Films Reinforced with Chitin Fibers. in Molecules, 26(24), 7477.
https://doi.org/10.3390/molecules26247477

Cabrera-Barjas G, Nešić A, Bravo-Arrepol G, Rodríguez-Llamazares S, Valdés O, Banerjee A, Castaño J, Delattre C. Bioactive Pectin-Murta (Ugni molinae T.) Seed Extract Films Reinforced with Chitin Fibers. in Molecules. 2021;26(24):7477.
doi:10.3390/molecules26247477 .

Cabrera-Barjas, Gustavo, Nešić, Aleksandra, Bravo-Arrepol, Gaston, Rodríguez-Llamazares, Saddys, Valdés, Oscar, Banerjee, Aparna, Castaño, Johanna, Delattre, Cédric, "Bioactive Pectin-Murta (Ugni molinae T.) Seed Extract Films Reinforced with Chitin Fibers" in Molecules, 26, no. 24 (2021):7477,
https://doi.org/10.3390/molecules26247477 . .

TY  - JOUR
AU  - Cabrera-Barjas, Gustavo
AU  - Radovanović, Neda
AU  - Arrepol, Gaston Bravo
AU  - de la Torre, Alexander F.
AU  - Valdes, Oscar
AU  - Nešić, Aleksandra
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10700
AB  - The efficient use of waste from food processing industry is one of the innovative approaches within sustainable development, because it can be transferred into added value products, which could improve economic, energetic and environmental sectors. In this context, the squid pen waste from seafood industry was used as raw material to obtain nanofibrous beta-chitin films. In order to extend functionality of obtained films, elderberry extract obtained from biomass was added at different concentrations. The tensile strength of chitin-elderberry extract films was improved by 52%, elongation at break by 153% and water vapor barrier by 65%. The obtained material showed distinct color change when subjected to acidic or basic solutions. It was proven by CIELab color analysis that all color changes could be easily perceived visually. In addition, the obtained nanofibrous film was successfully used to monitor the freshness of Hake fish. Namely, when the film was introduced in a package that contained fresh fish, its color was efficiently changed within the time during the storage at 4 degrees C. The obtained results demonstrated that food processing waste could be efficiently valorized, and could give sustainable food package design as a spoilage indicator of high protein food.
T2  - International Journal of Biological Macromolecules
T1  - Valorization of food waste to produce intelligent nanofibrous beta-chitin films
VL  - 186
SP  - 92
EP  - 99
DO  - 10.1016/j.ijbiomac.2021.07.045
ER  - 

@article{
author = "Cabrera-Barjas, Gustavo and Radovanović, Neda and Arrepol, Gaston Bravo and de la Torre, Alexander F. and Valdes, Oscar and Nešić, Aleksandra",
year = "2021",
abstract = "The efficient use of waste from food processing industry is one of the innovative approaches within sustainable development, because it can be transferred into added value products, which could improve economic, energetic and environmental sectors. In this context, the squid pen waste from seafood industry was used as raw material to obtain nanofibrous beta-chitin films. In order to extend functionality of obtained films, elderberry extract obtained from biomass was added at different concentrations. The tensile strength of chitin-elderberry extract films was improved by 52%, elongation at break by 153% and water vapor barrier by 65%. The obtained material showed distinct color change when subjected to acidic or basic solutions. It was proven by CIELab color analysis that all color changes could be easily perceived visually. In addition, the obtained nanofibrous film was successfully used to monitor the freshness of Hake fish. Namely, when the film was introduced in a package that contained fresh fish, its color was efficiently changed within the time during the storage at 4 degrees C. The obtained results demonstrated that food processing waste could be efficiently valorized, and could give sustainable food package design as a spoilage indicator of high protein food.",
journal = "International Journal of Biological Macromolecules",
title = "Valorization of food waste to produce intelligent nanofibrous beta-chitin films",
volume = "186",
pages = "92-99",
doi = "10.1016/j.ijbiomac.2021.07.045"
}

Cabrera-Barjas, G., Radovanović, N., Arrepol, G. B., de la Torre, A. F., Valdes, O.,& Nešić, A.. (2021). Valorization of food waste to produce intelligent nanofibrous beta-chitin films. in International Journal of Biological Macromolecules, 186, 92-99.
https://doi.org/10.1016/j.ijbiomac.2021.07.045

Cabrera-Barjas G, Radovanović N, Arrepol GB, de la Torre AF, Valdes O, Nešić A. Valorization of food waste to produce intelligent nanofibrous beta-chitin films. in International Journal of Biological Macromolecules. 2021;186:92-99.
doi:10.1016/j.ijbiomac.2021.07.045 .

Cabrera-Barjas, Gustavo, Radovanović, Neda, Arrepol, Gaston Bravo, de la Torre, Alexander F., Valdes, Oscar, Nešić, Aleksandra, "Valorization of food waste to produce intelligent nanofibrous beta-chitin films" in International Journal of Biological Macromolecules, 186 (2021):92-99,
https://doi.org/10.1016/j.ijbiomac.2021.07.045 . .

TY  - JOUR
AU  - Ćujić, Mirjana
AU  - Janković Mandić, Ljiljana
AU  - Petrović, Jelena M.
AU  - Dragović, Ranko M.
AU  - Đorđević, Milan
AU  - Đokić, Mrđan
AU  - Dragović, Snežana D.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8903
AB  - As an inert radioactive gas, 222Rn could be easily transported to the atmosphere via emanation, migration, or exhalation. Research measurements pointed out that 222Rn activity concentration changes during the winter and summer months, as well as during wet and dry season periods. Changes in radon concentration can affect the atmospheric electric field. At the boundary layer near the ground, short-lived daughters of 222Rn can be used as natural tracers in the atmosphere. In this work, factors controlling 222Rn pathways in the environment and its levels in soil gas and outdoor air are summarized. 222Rn has a short half-life of 3.82 days, but the dose rate due to radon and its radioactive progeny could be significant to the living beings. Epidemiological studies on humans pointed out that up to 14% of lung cancers are induced by exposure to low and moderate concentrations of radon. Animals that breed in ground holes have been exposed to the higher doses due to radiation present in soil air. During the years, different dose-effect models are developed for risk assessment on human and non-human biota. In this work are reviewed research results of 222Rn exposure of human and non-human biota. © 2020, ISB.
T2  - International Journal of Biometeorology
T1  - Radon-222: environmental behavior and impact to (human and non-human) biota
VL  - 65
IS  - 1
SP  - 69
EP  - 83
DO  - 10.1007/s00484-020-01860-w
ER  - 

@article{
author = "Ćujić, Mirjana and Janković Mandić, Ljiljana and Petrović, Jelena M. and Dragović, Ranko M. and Đorđević, Milan and Đokić, Mrđan and Dragović, Snežana D.",
year = "2021",
abstract = "As an inert radioactive gas, 222Rn could be easily transported to the atmosphere via emanation, migration, or exhalation. Research measurements pointed out that 222Rn activity concentration changes during the winter and summer months, as well as during wet and dry season periods. Changes in radon concentration can affect the atmospheric electric field. At the boundary layer near the ground, short-lived daughters of 222Rn can be used as natural tracers in the atmosphere. In this work, factors controlling 222Rn pathways in the environment and its levels in soil gas and outdoor air are summarized. 222Rn has a short half-life of 3.82 days, but the dose rate due to radon and its radioactive progeny could be significant to the living beings. Epidemiological studies on humans pointed out that up to 14% of lung cancers are induced by exposure to low and moderate concentrations of radon. Animals that breed in ground holes have been exposed to the higher doses due to radiation present in soil air. During the years, different dose-effect models are developed for risk assessment on human and non-human biota. In this work are reviewed research results of 222Rn exposure of human and non-human biota. © 2020, ISB.",
journal = "International Journal of Biometeorology",
title = "Radon-222: environmental behavior and impact to (human and non-human) biota",
volume = "65",
number = "1",
pages = "69-83",
doi = "10.1007/s00484-020-01860-w"
}

Ćujić, M., Janković Mandić, L., Petrović, J. M., Dragović, R. M., Đorđević, M., Đokić, M.,& Dragović, S. D.. (2021). Radon-222: environmental behavior and impact to (human and non-human) biota. in International Journal of Biometeorology, 65(1), 69-83.
https://doi.org/10.1007/s00484-020-01860-w

Ćujić M, Janković Mandić L, Petrović JM, Dragović RM, Đorđević M, Đokić M, Dragović SD. Radon-222: environmental behavior and impact to (human and non-human) biota. in International Journal of Biometeorology. 2021;65(1):69-83.
doi:10.1007/s00484-020-01860-w .

Ćujić, Mirjana, Janković Mandić, Ljiljana, Petrović, Jelena M., Dragović, Ranko M., Đorđević, Milan, Đokić, Mrđan, Dragović, Snežana D., "Radon-222: environmental behavior and impact to (human and non-human) biota" in International Journal of Biometeorology, 65, no. 1 (2021):69-83,
https://doi.org/10.1007/s00484-020-01860-w . .

TY  - JOUR
AU  - Hunting, Ellard R
AU  - Matthews, James
AU  - Fernández de Arróyabe, Pablo
AU  - England, Sam J.
AU  - Kourtidis, Konstantinos
AU  - Koh, Kuang
AU  - Nicoll, Keri
AU  - Harrison, R. Giles
AU  - Manser, Konstantine
AU  - Price, Colin
AU  - Dragović, Snežana D.
AU  - Cifra, Michal
AU  - Odzimek, Anna
AU  - Robert, Daniel
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9083
AB  - The atmosphere is host to a complex electric environment, ranging from a global electric circuit generating fluctuating atmospheric electric fields to local lightning strikes and ions. While research on interactions of organisms with their electrical environment is deeply rooted in the aquatic environment, it has hitherto been confined to interactions with local electrical phenomena and organismal perception of electric fields. However, there is emerging evidence of coupling between large- and small-scale atmospheric electrical phenomena and various biological processes in terrestrial environments that even appear to be tied to continental waters. Here, we synthesize our current understanding of this connectivity, discussing how atmospheric electricity can affect various levels of biological organization across multiple ecosystems. We identify opportunities for research, highlighting its complexity and interdisciplinary nature and draw attention to both conceptual and technical challenges lying ahead of our future understanding of the relationship between atmospheric electricity and the organization and functioning of biological systems.
T2  - International Journal of Biometeorology
T1  - Challenges in coupling atmospheric electricity with biological systems
VL  - 65
IS  - 1
SP  - 45
EP  - 58
DO  - 10.1007/s00484-020-01960-7
ER  - 

@article{
author = "Hunting, Ellard R and Matthews, James and Fernández de Arróyabe, Pablo and England, Sam J. and Kourtidis, Konstantinos and Koh, Kuang and Nicoll, Keri and Harrison, R. Giles and Manser, Konstantine and Price, Colin and Dragović, Snežana D. and Cifra, Michal and Odzimek, Anna and Robert, Daniel",
year = "2021",
abstract = "The atmosphere is host to a complex electric environment, ranging from a global electric circuit generating fluctuating atmospheric electric fields to local lightning strikes and ions. While research on interactions of organisms with their electrical environment is deeply rooted in the aquatic environment, it has hitherto been confined to interactions with local electrical phenomena and organismal perception of electric fields. However, there is emerging evidence of coupling between large- and small-scale atmospheric electrical phenomena and various biological processes in terrestrial environments that even appear to be tied to continental waters. Here, we synthesize our current understanding of this connectivity, discussing how atmospheric electricity can affect various levels of biological organization across multiple ecosystems. We identify opportunities for research, highlighting its complexity and interdisciplinary nature and draw attention to both conceptual and technical challenges lying ahead of our future understanding of the relationship between atmospheric electricity and the organization and functioning of biological systems.",
journal = "International Journal of Biometeorology",
title = "Challenges in coupling atmospheric electricity with biological systems",
volume = "65",
number = "1",
pages = "45-58",
doi = "10.1007/s00484-020-01960-7"
}

Hunting, E. R., Matthews, J., Fernández de Arróyabe, P., England, S. J., Kourtidis, K., Koh, K., Nicoll, K., Harrison, R. G., Manser, K., Price, C., Dragović, S. D., Cifra, M., Odzimek, A.,& Robert, D.. (2021). Challenges in coupling atmospheric electricity with biological systems. in International Journal of Biometeorology, 65(1), 45-58.
https://doi.org/10.1007/s00484-020-01960-7

Hunting ER, Matthews J, Fernández de Arróyabe P, England SJ, Kourtidis K, Koh K, Nicoll K, Harrison RG, Manser K, Price C, Dragović SD, Cifra M, Odzimek A, Robert D. Challenges in coupling atmospheric electricity with biological systems. in International Journal of Biometeorology. 2021;65(1):45-58.
doi:10.1007/s00484-020-01960-7 .

Hunting, Ellard R, Matthews, James, Fernández de Arróyabe, Pablo, England, Sam J., Kourtidis, Konstantinos, Koh, Kuang, Nicoll, Keri, Harrison, R. Giles, Manser, Konstantine, Price, Colin, Dragović, Snežana D., Cifra, Michal, Odzimek, Anna, Robert, Daniel, "Challenges in coupling atmospheric electricity with biological systems" in International Journal of Biometeorology, 65, no. 1 (2021):45-58,
https://doi.org/10.1007/s00484-020-01960-7 . .

TY  - JOUR
AU  - Janković, Marija M.
AU  - Janković, Bojan Ž.
AU  - Marinović-Cincović, Milena
AU  - Porobić, Slavica
AU  - Krneta-Nikolić, Jelena D.
AU  - Sarap, Nataša
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8905
AB  - Simultaneous thermal analysis (TG–DTA) of low-rank coals from different annual periods (2015 and 2018) which originate from Kolubara and Nikola Tesla A (TENT A) coal-fired power plants was studied to identify their combustion characteristics and self-ignition risks. In order to investigate kinetics of thermo-oxidative degradation, model-free models including the Friedman and Kissinger–Akahira–Sunose methods were applied. In accordance with obtained kinetic results, numerical optimization of combustion process was implemented. Homogeneous and heterogeneous types of ignition were identified for the tested coals, and factors that affect their occurrence are the used heating rate and volatile matter content. From thermal susceptibility graph, it was found that the tested coals expand in a wide range of self-ignition risk, depending on their coal rank. The youngest coal (TENT A (2018)) has the largest propensity to self-ignite among high-ranking coals. It was found that less tendency of 2018 coals to show true isokinetic temperature in comparison with 2015 coals is a consequence of intraparticle diffusion limitations, and change of char properties, at higher conversion values. Gamma spectrometry analysis of coals showed that higher concentration of 40K radionuclide (which is in mineral composition) may contribute through its deposition on available sites, decreasing surface area for reaction with oxidizing species. © 2020, Akadémiai Kiadó, Budapest, Hungary.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Experimental study of low-rank coals using simultaneous thermal analysis (TG–DTA) techniques under air conditions and radiation level characterization
VL  - 142
IS  - 2
SP  - 547
EP  - 564
DO  - 10.1007/s10973-020-09288-5
ER  - 

@article{
author = "Janković, Marija M. and Janković, Bojan Ž. and Marinović-Cincović, Milena and Porobić, Slavica and Krneta-Nikolić, Jelena D. and Sarap, Nataša",
year = "2020",
abstract = "Simultaneous thermal analysis (TG–DTA) of low-rank coals from different annual periods (2015 and 2018) which originate from Kolubara and Nikola Tesla A (TENT A) coal-fired power plants was studied to identify their combustion characteristics and self-ignition risks. In order to investigate kinetics of thermo-oxidative degradation, model-free models including the Friedman and Kissinger–Akahira–Sunose methods were applied. In accordance with obtained kinetic results, numerical optimization of combustion process was implemented. Homogeneous and heterogeneous types of ignition were identified for the tested coals, and factors that affect their occurrence are the used heating rate and volatile matter content. From thermal susceptibility graph, it was found that the tested coals expand in a wide range of self-ignition risk, depending on their coal rank. The youngest coal (TENT A (2018)) has the largest propensity to self-ignite among high-ranking coals. It was found that less tendency of 2018 coals to show true isokinetic temperature in comparison with 2015 coals is a consequence of intraparticle diffusion limitations, and change of char properties, at higher conversion values. Gamma spectrometry analysis of coals showed that higher concentration of 40K radionuclide (which is in mineral composition) may contribute through its deposition on available sites, decreasing surface area for reaction with oxidizing species. © 2020, Akadémiai Kiadó, Budapest, Hungary.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Experimental study of low-rank coals using simultaneous thermal analysis (TG–DTA) techniques under air conditions and radiation level characterization",
volume = "142",
number = "2",
pages = "547-564",
doi = "10.1007/s10973-020-09288-5"
}

Janković, M. M., Janković, B. Ž., Marinović-Cincović, M., Porobić, S., Krneta-Nikolić, J. D.,& Sarap, N.. (2020). Experimental study of low-rank coals using simultaneous thermal analysis (TG–DTA) techniques under air conditions and radiation level characterization. in Journal of Thermal Analysis and Calorimetry, 142(2), 547-564.
https://doi.org/10.1007/s10973-020-09288-5

Janković MM, Janković BŽ, Marinović-Cincović M, Porobić S, Krneta-Nikolić JD, Sarap N. Experimental study of low-rank coals using simultaneous thermal analysis (TG–DTA) techniques under air conditions and radiation level characterization. in Journal of Thermal Analysis and Calorimetry. 2020;142(2):547-564.
doi:10.1007/s10973-020-09288-5 .

Janković, Marija M., Janković, Bojan Ž., Marinović-Cincović, Milena, Porobić, Slavica, Krneta-Nikolić, Jelena D., Sarap, Nataša, "Experimental study of low-rank coals using simultaneous thermal analysis (TG–DTA) techniques under air conditions and radiation level characterization" in Journal of Thermal Analysis and Calorimetry, 142, no. 2 (2020):547-564,
https://doi.org/10.1007/s10973-020-09288-5 . .

TY  - JOUR
AU  - Meseldžija, Slađana
AU  - Petrović, Jelena D.
AU  - Onjia, Antonije E.
AU  - Volkov-Husović, Tatjana
AU  - Nešić, Aleksandra
AU  - Vukelić, Nikola
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9734
AB  - This study is aimed to evaluate the possibility of lemon peel, as an agro-industrial waste, to remove Fe2+, Zn2+ and Mn2+ from single aqueous solutions and mining wastewater. For this purpose, the influence of various parameters: sorption time, initial pH solution, initial metal ion concentration and a dose of sorbent on the sorption process were studied in batch experiments. The experimental equilibrium data have been analysed utilizing linearized forms of Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms. The Langmuir isotherm provided the best theoretical correlation of the experimental equilibrium data for Fe2+, Zn2+ and Mn2+, with the maximum sorption capacities of 4.40, 5.03 and 4.52 mg g(-1), respectively. The percentage of targeted ions removal from single aqueous solutions was 92.9 % (Zn2+), 84.5 % (Fe2+) and 78.2 % (Mn2+). Regarding the sorption capability of lemon peel in mining wastewater, the maximum removal of Fe2+, Zn2+ and Mn2+ from mining wastewater was 49.62, 33.97 and 9.11 %, respectively. In addition, the potential reusability of the lemon peel as sorbent was investigated through desorption study in 0.1M of CH3COO4, HCl and HNO3 solution. The highest rate of desorption was achieved in 0.1 M HCl solution, reached a value of 55.19 % for Mn2+ and 37.24 % for Zn2+, while for Fe2+ the highest value of 25.82 % was achieved in 0.1M HNO3 solution.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste
VL  - 85
IS  - 10
SP  - 1371
EP  - 1382
DO  - 10.2298/JSC200413030M
ER  - 

@article{
author = "Meseldžija, Slađana and Petrović, Jelena D. and Onjia, Antonije E. and Volkov-Husović, Tatjana and Nešić, Aleksandra and Vukelić, Nikola",
year = "2020",
abstract = "This study is aimed to evaluate the possibility of lemon peel, as an agro-industrial waste, to remove Fe2+, Zn2+ and Mn2+ from single aqueous solutions and mining wastewater. For this purpose, the influence of various parameters: sorption time, initial pH solution, initial metal ion concentration and a dose of sorbent on the sorption process were studied in batch experiments. The experimental equilibrium data have been analysed utilizing linearized forms of Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms. The Langmuir isotherm provided the best theoretical correlation of the experimental equilibrium data for Fe2+, Zn2+ and Mn2+, with the maximum sorption capacities of 4.40, 5.03 and 4.52 mg g(-1), respectively. The percentage of targeted ions removal from single aqueous solutions was 92.9 % (Zn2+), 84.5 % (Fe2+) and 78.2 % (Mn2+). Regarding the sorption capability of lemon peel in mining wastewater, the maximum removal of Fe2+, Zn2+ and Mn2+ from mining wastewater was 49.62, 33.97 and 9.11 %, respectively. In addition, the potential reusability of the lemon peel as sorbent was investigated through desorption study in 0.1M of CH3COO4, HCl and HNO3 solution. The highest rate of desorption was achieved in 0.1 M HCl solution, reached a value of 55.19 % for Mn2+ and 37.24 % for Zn2+, while for Fe2+ the highest value of 25.82 % was achieved in 0.1M HNO3 solution.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste",
volume = "85",
number = "10",
pages = "1371-1382",
doi = "10.2298/JSC200413030M"
}

Meseldžija, S., Petrović, J. D., Onjia, A. E., Volkov-Husović, T., Nešić, A.,& Vukelić, N.. (2020). Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 85(10), 1371-1382.
https://doi.org/10.2298/JSC200413030M

Meseldžija S, Petrović JD, Onjia AE, Volkov-Husović T, Nešić A, Vukelić N. Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste. in Journal of the Serbian Chemical Society. 2020;85(10):1371-1382.
doi:10.2298/JSC200413030M .

Meseldžija, Slađana, Petrović, Jelena D., Onjia, Antonije E., Volkov-Husović, Tatjana, Nešić, Aleksandra, Vukelić, Nikola, "Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste" in Journal of the Serbian Chemical Society, 85, no. 10 (2020):1371-1382,
https://doi.org/10.2298/JSC200413030M . .

TY  - JOUR
AU  - Dragović, Snežana D.
AU  - Yamauchi, Masatoshi
AU  - Aoyama, Michio
AU  - Kajino, Mizuo
AU  - Petrović, Jelena M.
AU  - Ćujić, Mirjana
AU  - Dragović, Ranko M.
AU  - Đorđević, Milan
AU  - Bór, József
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9006
AB  - Radioactive materials released during the two most serious nuclear accidents in history, at Chernobyl and Fukushima, caused exceptionally significant contamination and perturbations of the environment. Among them, this paper focuses on the effects related to the atmospheric electricity (AE). Measurements of the most significant disturbances in the values of various AE parameters recorded near ground level are reviewed and the corresponding results are jointly evaluated. The Chernobyl and Fukushima events caused changes in the AE parameters both after long-distance transport (Chernobyl) and short-distance transport including re-suspension (Fukushima). The data indicates that the electrical conductivity of the air is more sensitive to the presence of airborne radioactivity than the atmospheric electric potential gradient (PG). PG, on the other hand, can be monitored more easily and its variation also reflects the vertical redistribution of radionuclides in the air due to their transport, deposition, and re-suspension from the ground. A brief overview of studies on atmospheric transport and deposition of radioactive clouds is given to facilitate the importance of considering the AE measurements in these subjects, and to incorporate those studies in interpreting the results of AE measurements. The AE measurements are particularly important in studying microphysical effects of enhanced radioactivity in the air where no other distance monitoring method exists, both for fair weather conditions wet conditions.
T2  - Science of the Total Environment
T1  - Synthesis of studies on significant atmospheric electrical effects of major nuclear accidents in Chernobyl and Fukushima
VL  - 733
SP  - 139271
DO  - 10.1016/j.scitotenv.2020.139271
ER  - 

@article{
author = "Dragović, Snežana D. and Yamauchi, Masatoshi and Aoyama, Michio and Kajino, Mizuo and Petrović, Jelena M. and Ćujić, Mirjana and Dragović, Ranko M. and Đorđević, Milan and Bór, József",
year = "2020",
abstract = "Radioactive materials released during the two most serious nuclear accidents in history, at Chernobyl and Fukushima, caused exceptionally significant contamination and perturbations of the environment. Among them, this paper focuses on the effects related to the atmospheric electricity (AE). Measurements of the most significant disturbances in the values of various AE parameters recorded near ground level are reviewed and the corresponding results are jointly evaluated. The Chernobyl and Fukushima events caused changes in the AE parameters both after long-distance transport (Chernobyl) and short-distance transport including re-suspension (Fukushima). The data indicates that the electrical conductivity of the air is more sensitive to the presence of airborne radioactivity than the atmospheric electric potential gradient (PG). PG, on the other hand, can be monitored more easily and its variation also reflects the vertical redistribution of radionuclides in the air due to their transport, deposition, and re-suspension from the ground. A brief overview of studies on atmospheric transport and deposition of radioactive clouds is given to facilitate the importance of considering the AE measurements in these subjects, and to incorporate those studies in interpreting the results of AE measurements. The AE measurements are particularly important in studying microphysical effects of enhanced radioactivity in the air where no other distance monitoring method exists, both for fair weather conditions wet conditions.",
journal = "Science of the Total Environment",
title = "Synthesis of studies on significant atmospheric electrical effects of major nuclear accidents in Chernobyl and Fukushima",
volume = "733",
pages = "139271",
doi = "10.1016/j.scitotenv.2020.139271"
}

Dragović, S. D., Yamauchi, M., Aoyama, M., Kajino, M., Petrović, J. M., Ćujić, M., Dragović, R. M., Đorđević, M.,& Bór, J.. (2020). Synthesis of studies on significant atmospheric electrical effects of major nuclear accidents in Chernobyl and Fukushima. in Science of the Total Environment, 733, 139271.
https://doi.org/10.1016/j.scitotenv.2020.139271

Dragović SD, Yamauchi M, Aoyama M, Kajino M, Petrović JM, Ćujić M, Dragović RM, Đorđević M, Bór J. Synthesis of studies on significant atmospheric electrical effects of major nuclear accidents in Chernobyl and Fukushima. in Science of the Total Environment. 2020;733:139271.
doi:10.1016/j.scitotenv.2020.139271 .

Dragović, Snežana D., Yamauchi, Masatoshi, Aoyama, Michio, Kajino, Mizuo, Petrović, Jelena M., Ćujić, Mirjana, Dragović, Ranko M., Đorđević, Milan, Bór, József, "Synthesis of studies on significant atmospheric electrical effects of major nuclear accidents in Chernobyl and Fukushima" in Science of the Total Environment, 733 (2020):139271,
https://doi.org/10.1016/j.scitotenv.2020.139271 . .

TY  - JOUR
AU  - Čeliković, Igor T.
AU  - Pantelić, Gordana K.
AU  - Živanović, Miloš Z.
AU  - Vukanac, Ivana
AU  - Krneta-Nikolić, Jelena D.
AU  - Kandić, Aleksandar
AU  - Lončar, Boris B.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9052
AB  - The second most important source of indoor radon, after soil beneath dwelling, is building material. With the increase in environmental awareness and new energy-saving policies, residents tend to replace the existing windows with tighter windows, which leads to a decrease in air exchange rate and consequently an increase in indoor radon concentration. In case of low exchange rates, dose caused by inhalation of radon and its progeny can exceed external dose originating from the radium content in the surrounding building material. In this paper, surface exhalation rates of radon ( 222 Rn) and thoron ( 220 Rn) from typical building materials used for construction and interior decoration of houses in Serbia were investigated. Surface exhalation rate measurements were performed using the closed-chamber method, while concentrations of radon and thoron in the chamber were continuously measured using an active device, RTM1688-2, produced by SARAD® GmbH. Finally, the impact of the replacement of windows on the indoor radon concentration was estimated.
T2  - Nukleonika
T1  - Radon and thoron exhalation rate measurements from building materials used in Serbia
VL  - 65
IS  - 2
SP  - 111
EP  - 114
DO  - 10.2478/nuka-2020-0017
ER  - 

@article{
author = "Čeliković, Igor T. and Pantelić, Gordana K. and Živanović, Miloš Z. and Vukanac, Ivana and Krneta-Nikolić, Jelena D. and Kandić, Aleksandar and Lončar, Boris B.",
year = "2020",
abstract = "The second most important source of indoor radon, after soil beneath dwelling, is building material. With the increase in environmental awareness and new energy-saving policies, residents tend to replace the existing windows with tighter windows, which leads to a decrease in air exchange rate and consequently an increase in indoor radon concentration. In case of low exchange rates, dose caused by inhalation of radon and its progeny can exceed external dose originating from the radium content in the surrounding building material. In this paper, surface exhalation rates of radon ( 222 Rn) and thoron ( 220 Rn) from typical building materials used for construction and interior decoration of houses in Serbia were investigated. Surface exhalation rate measurements were performed using the closed-chamber method, while concentrations of radon and thoron in the chamber were continuously measured using an active device, RTM1688-2, produced by SARAD® GmbH. Finally, the impact of the replacement of windows on the indoor radon concentration was estimated.",
journal = "Nukleonika",
title = "Radon and thoron exhalation rate measurements from building materials used in Serbia",
volume = "65",
number = "2",
pages = "111-114",
doi = "10.2478/nuka-2020-0017"
}

Čeliković, I. T., Pantelić, G. K., Živanović, M. Z., Vukanac, I., Krneta-Nikolić, J. D., Kandić, A.,& Lončar, B. B.. (2020). Radon and thoron exhalation rate measurements from building materials used in Serbia. in Nukleonika, 65(2), 111-114.
https://doi.org/10.2478/nuka-2020-0017

Čeliković IT, Pantelić GK, Živanović MZ, Vukanac I, Krneta-Nikolić JD, Kandić A, Lončar BB. Radon and thoron exhalation rate measurements from building materials used in Serbia. in Nukleonika. 2020;65(2):111-114.
doi:10.2478/nuka-2020-0017 .

Čeliković, Igor T., Pantelić, Gordana K., Živanović, Miloš Z., Vukanac, Ivana, Krneta-Nikolić, Jelena D., Kandić, Aleksandar, Lončar, Boris B., "Radon and thoron exhalation rate measurements from building materials used in Serbia" in Nukleonika, 65, no. 2 (2020):111-114,
https://doi.org/10.2478/nuka-2020-0017 . .

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Smičiklas, Ivana D.
AU  - Manić, Nebojša G.
AU  - Mraković, Ana Đ.
AU  - Mandić, Milica
AU  - Veljović, Đorđe N.
AU  - Jović, Mihajlo D.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8836
AB  - Thermo-oxidative degradation of mollusk shells to CaO through intermediate phase of CaCO3 has been investigated using various analytical techniques. Powders of shells species (Dosinia exoleta and Ostrea edulis), with particle size fractions of 0.045 – 0.125 mm, 0.125–0.2 mm, and 0.2–1 mm, were subjected to degradation at the various heating rates (5, 10, 15 and 20 °C min−1). Degradation pathway of this carbonate-rich waste material has not yet been analyzed in detail at particulate level. Understanding transformation process in air should lead to control over yield and morphology of final product. Thermogravimetric analysis (TGA) and X-ray diffraction (XRD) techniques were used to benchmark transformation steps at different heating rates and final decarbonation temperatures, while scanning electron microscope (SEM) was used to analyze the effect of temperature on evolution of morphological changes for particles of different fractions. It was found that sintering in the presence of carbon dioxide (CO2) could be triggered by agglomeration of CaO crystals, enhanced by CO2 adsorption that increases surface energy. © 2020 Elsevier B.V.
T2  - Thermochimica Acta
T1  - Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors
VL  - 686
SP  - 178568
DO  - 10.1016/j.tca.2020.178568
ER  - 

@article{
author = "Janković, Bojan Ž. and Smičiklas, Ivana D. and Manić, Nebojša G. and Mraković, Ana Đ. and Mandić, Milica and Veljović, Đorđe N. and Jović, Mihajlo D.",
year = "2020",
abstract = "Thermo-oxidative degradation of mollusk shells to CaO through intermediate phase of CaCO3 has been investigated using various analytical techniques. Powders of shells species (Dosinia exoleta and Ostrea edulis), with particle size fractions of 0.045 – 0.125 mm, 0.125–0.2 mm, and 0.2–1 mm, were subjected to degradation at the various heating rates (5, 10, 15 and 20 °C min−1). Degradation pathway of this carbonate-rich waste material has not yet been analyzed in detail at particulate level. Understanding transformation process in air should lead to control over yield and morphology of final product. Thermogravimetric analysis (TGA) and X-ray diffraction (XRD) techniques were used to benchmark transformation steps at different heating rates and final decarbonation temperatures, while scanning electron microscope (SEM) was used to analyze the effect of temperature on evolution of morphological changes for particles of different fractions. It was found that sintering in the presence of carbon dioxide (CO2) could be triggered by agglomeration of CaO crystals, enhanced by CO2 adsorption that increases surface energy. © 2020 Elsevier B.V.",
journal = "Thermochimica Acta",
title = "Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors",
volume = "686",
pages = "178568",
doi = "10.1016/j.tca.2020.178568"
}

Janković, B. Ž., Smičiklas, I. D., Manić, N. G., Mraković, A. Đ., Mandić, M., Veljović, Đ. N.,& Jović, M. D.. (2020). Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors. in Thermochimica Acta, 686, 178568.
https://doi.org/10.1016/j.tca.2020.178568

Janković BŽ, Smičiklas ID, Manić NG, Mraković AĐ, Mandić M, Veljović ĐN, Jović MD. Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors. in Thermochimica Acta. 2020;686:178568.
doi:10.1016/j.tca.2020.178568 .

Janković, Bojan Ž., Smičiklas, Ivana D., Manić, Nebojša G., Mraković, Ana Đ., Mandić, Milica, Veljović, Đorđe N., Jović, Mihajlo D., "Thermo-oxidative evolution and physico-chemical characterization of seashell waste for application in commercial sectors" in Thermochimica Acta, 686 (2020):178568,
https://doi.org/10.1016/j.tca.2020.178568 . .

TY  - JOUR
AU  - Sarap, Nataša
AU  - Krneta-Nikolić, Jelena D.
AU  - Meseldžija, Slađana
AU  - Janković Mandić, Ljiljana
AU  - Janković, Marija M.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8860
AB  - This paper is focused on determination of activity concentration of gamma emitters in surface layer of soil, in surrounding of the coal-fired power plant complex. Also, the impact of coal-fired power plant emissions on certain of physical and chemical properties of the soil was studied. The results of this study indicated that the operation of the power plant has no significant negative impact on the environment in terms of the content of radionuclides. The effect of the coal-fired power plant emissions on soil is a function of the pollutant gradient existing in the area. The increased soil acidity can adversely affect the microbiological and pedogenetic processes in soil which cause cation-anion imbalance and microbe population reduction to affect soil fertility. © 2020, Editura Academiei Romane. All rights reserved.
T2  - Romanian Journal of Physics
T1  - Quantification of radioisotopic pollution of soil from coal fired power plant surrounding
VL  - 65
IS  - 1-2
SP  - 802
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8860
ER  - 

@article{
author = "Sarap, Nataša and Krneta-Nikolić, Jelena D. and Meseldžija, Slađana and Janković Mandić, Ljiljana and Janković, Marija M.",
year = "2020",
abstract = "This paper is focused on determination of activity concentration of gamma emitters in surface layer of soil, in surrounding of the coal-fired power plant complex. Also, the impact of coal-fired power plant emissions on certain of physical and chemical properties of the soil was studied. The results of this study indicated that the operation of the power plant has no significant negative impact on the environment in terms of the content of radionuclides. The effect of the coal-fired power plant emissions on soil is a function of the pollutant gradient existing in the area. The increased soil acidity can adversely affect the microbiological and pedogenetic processes in soil which cause cation-anion imbalance and microbe population reduction to affect soil fertility. © 2020, Editura Academiei Romane. All rights reserved.",
journal = "Romanian Journal of Physics",
title = "Quantification of radioisotopic pollution of soil from coal fired power plant surrounding",
volume = "65",
number = "1-2",
pages = "802",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8860"
}

Sarap, N., Krneta-Nikolić, J. D., Meseldžija, S., Janković Mandić, L.,& Janković, M. M.. (2020). Quantification of radioisotopic pollution of soil from coal fired power plant surrounding. in Romanian Journal of Physics, 65(1-2), 802.
https://hdl.handle.net/21.15107/rcub_vinar_8860

Sarap N, Krneta-Nikolić JD, Meseldžija S, Janković Mandić L, Janković MM. Quantification of radioisotopic pollution of soil from coal fired power plant surrounding. in Romanian Journal of Physics. 2020;65(1-2):802.
https://hdl.handle.net/21.15107/rcub_vinar_8860 .

Sarap, Nataša, Krneta-Nikolić, Jelena D., Meseldžija, Slađana, Janković Mandić, Ljiljana, Janković, Marija M., "Quantification of radioisotopic pollution of soil from coal fired power plant surrounding" in Romanian Journal of Physics, 65, no. 1-2 (2020):802,
https://hdl.handle.net/21.15107/rcub_vinar_8860 .

TY  - JOUR
AU  - Vukanac, Ivana
AU  - Janković, Marija M.
AU  - Rajačić, Milica
AU  - Todorović, Dragana
AU  - Ujić, Predrag
AU  - Pantelić, Gordana K.
AU  - Sarap, Nataša
AU  - Krneta-Nikolić, Jelena D.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9594
AB  - Various imported building materials commonly used in construction and industry in Serbia were analyzed using gamma spectrometry. Based on the activity concentrations of 226Ra, 232Th, and 40K in the investigated samples, radium equivalent activity, Raeq, absorbed dose rate, D, annual effective dose, DE, and the external hazard index, Hex, were calculated to assess the radiation hazard for people. The Raeq for most of the analyzed samples (416 in total) was lower than the maximum admissible value of 370 Bqkg-1 set in the UNSCEAR report. The absorbed gamma dose rate in air was found to vary from 0.030 mGyh-1 to 1.328 mGyh-1 which in some cases exceeded indoor dose rates in Europe. The obtained values for annual effective dose exceed the limits of 0.41 mSv given in literature for about 5 % of measured samples, while values of Hex were higher than unity for three samples of cement, eight samples of granite, and one sand sample. As a possible source of elevated effective dose, the radon exhalation from building materials was estimated using the parameters given in literature. The internal dose due to 222Rn exhaled from the building material was found to be up to nine times higher than external dose due to 226Ra content in some cases.
T2  - Nuclear Technology and Radiation Protection
T1  - Assessment of natural radioactivity levels and radon exhalation rate potential from various building materials
VL  - 35
IS  - 1
SP  - 64
EP  - 73
DO  - 10.2298/NTRP2001064V
ER  - 

@article{
author = "Vukanac, Ivana and Janković, Marija M. and Rajačić, Milica and Todorović, Dragana and Ujić, Predrag and Pantelić, Gordana K. and Sarap, Nataša and Krneta-Nikolić, Jelena D.",
year = "2020",
abstract = "Various imported building materials commonly used in construction and industry in Serbia were analyzed using gamma spectrometry. Based on the activity concentrations of 226Ra, 232Th, and 40K in the investigated samples, radium equivalent activity, Raeq, absorbed dose rate, D, annual effective dose, DE, and the external hazard index, Hex, were calculated to assess the radiation hazard for people. The Raeq for most of the analyzed samples (416 in total) was lower than the maximum admissible value of 370 Bqkg-1 set in the UNSCEAR report. The absorbed gamma dose rate in air was found to vary from 0.030 mGyh-1 to 1.328 mGyh-1 which in some cases exceeded indoor dose rates in Europe. The obtained values for annual effective dose exceed the limits of 0.41 mSv given in literature for about 5 % of measured samples, while values of Hex were higher than unity for three samples of cement, eight samples of granite, and one sand sample. As a possible source of elevated effective dose, the radon exhalation from building materials was estimated using the parameters given in literature. The internal dose due to 222Rn exhaled from the building material was found to be up to nine times higher than external dose due to 226Ra content in some cases.",
journal = "Nuclear Technology and Radiation Protection",
title = "Assessment of natural radioactivity levels and radon exhalation rate potential from various building materials",
volume = "35",
number = "1",
pages = "64-73",
doi = "10.2298/NTRP2001064V"
}

Vukanac, I., Janković, M. M., Rajačić, M., Todorović, D., Ujić, P., Pantelić, G. K., Sarap, N.,& Krneta-Nikolić, J. D.. (2020). Assessment of natural radioactivity levels and radon exhalation rate potential from various building materials. in Nuclear Technology and Radiation Protection, 35(1), 64-73.
https://doi.org/10.2298/NTRP2001064V

Vukanac I, Janković MM, Rajačić M, Todorović D, Ujić P, Pantelić GK, Sarap N, Krneta-Nikolić JD. Assessment of natural radioactivity levels and radon exhalation rate potential from various building materials. in Nuclear Technology and Radiation Protection. 2020;35(1):64-73.
doi:10.2298/NTRP2001064V .

Vukanac, Ivana, Janković, Marija M., Rajačić, Milica, Todorović, Dragana, Ujić, Predrag, Pantelić, Gordana K., Sarap, Nataša, Krneta-Nikolić, Jelena D., "Assessment of natural radioactivity levels and radon exhalation rate potential from various building materials" in Nuclear Technology and Radiation Protection, 35, no. 1 (2020):64-73,
https://doi.org/10.2298/NTRP2001064V . .

TY  - CONF
AU  - Živanović, Miloš
AU  - Pantelić, Gordana K.
AU  - Čeliković, Igor T.
AU  - Krneta-Nikolić, Jelena D.
AU  - Vukanac, Ivana
AU  - Zekić, Ranko
AU  - Svrkota, Nikola
AU  - Kastratović, Dejan
AU  - Vukotić, Perko
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11142
PB  - RAD Centre, Niš, Serbia
C3  - RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference
T1  - Calibration of recycled open-faced charcoal canisters for two- and one-day radon concentration measurements
SP  - 160
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11142
ER  - 

@conference{
author = "Živanović, Miloš and Pantelić, Gordana K. and Čeliković, Igor T. and Krneta-Nikolić, Jelena D. and Vukanac, Ivana and Zekić, Ranko and Svrkota, Nikola and Kastratović, Dejan and Vukotić, Perko",
year = "2020",
publisher = "RAD Centre, Niš, Serbia",
journal = "RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference",
title = "Calibration of recycled open-faced charcoal canisters for two- and one-day radon concentration measurements",
pages = "160",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11142"
}

Živanović, M., Pantelić, G. K., Čeliković, I. T., Krneta-Nikolić, J. D., Vukanac, I., Zekić, R., Svrkota, N., Kastratović, D.,& Vukotić, P.. (2020). Calibration of recycled open-faced charcoal canisters for two- and one-day radon concentration measurements. in RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference
RAD Centre, Niš, Serbia., 160.
https://hdl.handle.net/21.15107/rcub_vinar_11142

Živanović M, Pantelić GK, Čeliković IT, Krneta-Nikolić JD, Vukanac I, Zekić R, Svrkota N, Kastratović D, Vukotić P. Calibration of recycled open-faced charcoal canisters for two- and one-day radon concentration measurements. in RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference. 2020;:160.
https://hdl.handle.net/21.15107/rcub_vinar_11142 .

Živanović, Miloš, Pantelić, Gordana K., Čeliković, Igor T., Krneta-Nikolić, Jelena D., Vukanac, Ivana, Zekić, Ranko, Svrkota, Nikola, Kastratović, Dejan, Vukotić, Perko, "Calibration of recycled open-faced charcoal canisters for two- and one-day radon concentration measurements" in RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference (2020):160,
https://hdl.handle.net/21.15107/rcub_vinar_11142 .

TY  - JOUR
AU  - Živanović, Miloš Z.
AU  - Pantelić, Gordana K.
AU  - Čeliković, Igor T.
AU  - Krneta-Nikolić, Jelena D.
AU  - Vukanac, Ivana
AU  - Kržanović, Nikola
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9113
AB  - Open-faced charcoal canisters have been used for radon measurements for over 40 years. This method is sensitive to temperature, changing radon concentrations, humidity and other parameters, but a comprehensive study dealing with the influence quantities and measurement uncertainty was not available in literature. In this paper, all the identified influence quantities are discussed in detail, uncertainty budget is developed, good practice and bad practice examples are introduced and new recommendations are proposed to optimize the method and reduce uncertainty.
T2  - Applied Radiation and Isotopes
T1  - Radon measurements using open-faced charcoal canisters - Measurement uncertainty and method optimization
VL  - 165
SP  - 109335
DO  - 10.1016/j.apradiso.2020.109335
ER  - 

@article{
author = "Živanović, Miloš Z. and Pantelić, Gordana K. and Čeliković, Igor T. and Krneta-Nikolić, Jelena D. and Vukanac, Ivana and Kržanović, Nikola",
year = "2020",
abstract = "Open-faced charcoal canisters have been used for radon measurements for over 40 years. This method is sensitive to temperature, changing radon concentrations, humidity and other parameters, but a comprehensive study dealing with the influence quantities and measurement uncertainty was not available in literature. In this paper, all the identified influence quantities are discussed in detail, uncertainty budget is developed, good practice and bad practice examples are introduced and new recommendations are proposed to optimize the method and reduce uncertainty.",
journal = "Applied Radiation and Isotopes",
title = "Radon measurements using open-faced charcoal canisters - Measurement uncertainty and method optimization",
volume = "165",
pages = "109335",
doi = "10.1016/j.apradiso.2020.109335"
}

Živanović, M. Z., Pantelić, G. K., Čeliković, I. T., Krneta-Nikolić, J. D., Vukanac, I.,& Kržanović, N.. (2020). Radon measurements using open-faced charcoal canisters - Measurement uncertainty and method optimization. in Applied Radiation and Isotopes, 165, 109335.
https://doi.org/10.1016/j.apradiso.2020.109335

Živanović MZ, Pantelić GK, Čeliković IT, Krneta-Nikolić JD, Vukanac I, Kržanović N. Radon measurements using open-faced charcoal canisters - Measurement uncertainty and method optimization. in Applied Radiation and Isotopes. 2020;165:109335.
doi:10.1016/j.apradiso.2020.109335 .

Živanović, Miloš Z., Pantelić, Gordana K., Čeliković, Igor T., Krneta-Nikolić, Jelena D., Vukanac, Ivana, Kržanović, Nikola, "Radon measurements using open-faced charcoal canisters - Measurement uncertainty and method optimization" in Applied Radiation and Isotopes, 165 (2020):109335,
https://doi.org/10.1016/j.apradiso.2020.109335 . .

TY  - JOUR
AU  - Sarap, Nataša
AU  - Krneta-Nikolić, Jelena D.
AU  - Trifković, Jelena Đ.
AU  - Janković, Marija M.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8790
AB  - Taking into account the importance of distribution and transfer of radionuclides in the soil–plant system, especially in agricultural fields, the aim of this research was assessment of radioactivity contribution and transfer characteristics of natural radionuclides in agroecosystem. The measurement of the natural radioactivity distribution was conducted in organic and sustainable farming management systems. Statistical evaluation of the physical and chemical properties of soils subjected to different farming systems, revealed the existence of differences in some parameters. Balanced distribution of natural radionuclides in soil-crop system was observed. Radionuclide 40K was the most accessible to the investigated crops via uptake from the soil, then 232Th and 226Ra. The obtained results are useful for understanding the behavior of the radionuclides and provide an insight into the cumulative deposition of radioactivity in the agroecosystem.
T2  - Journal of Radioanalytical and Nuclear Chemistry
T1  - Assessment of radioactivity contribution and transfer characteristics of natural radionuclides in agroecosystem
VL  - 323
IS  - 2
SP  - 805
EP  - 815
DO  - 10.1007/s10967-019-06986-9
ER  - 

@article{
author = "Sarap, Nataša and Krneta-Nikolić, Jelena D. and Trifković, Jelena Đ. and Janković, Marija M.",
year = "2020",
abstract = "Taking into account the importance of distribution and transfer of radionuclides in the soil–plant system, especially in agricultural fields, the aim of this research was assessment of radioactivity contribution and transfer characteristics of natural radionuclides in agroecosystem. The measurement of the natural radioactivity distribution was conducted in organic and sustainable farming management systems. Statistical evaluation of the physical and chemical properties of soils subjected to different farming systems, revealed the existence of differences in some parameters. Balanced distribution of natural radionuclides in soil-crop system was observed. Radionuclide 40K was the most accessible to the investigated crops via uptake from the soil, then 232Th and 226Ra. The obtained results are useful for understanding the behavior of the radionuclides and provide an insight into the cumulative deposition of radioactivity in the agroecosystem.",
journal = "Journal of Radioanalytical and Nuclear Chemistry",
title = "Assessment of radioactivity contribution and transfer characteristics of natural radionuclides in agroecosystem",
volume = "323",
number = "2",
pages = "805-815",
doi = "10.1007/s10967-019-06986-9"
}

Sarap, N., Krneta-Nikolić, J. D., Trifković, J. Đ.,& Janković, M. M.. (2020). Assessment of radioactivity contribution and transfer characteristics of natural radionuclides in agroecosystem. in Journal of Radioanalytical and Nuclear Chemistry, 323(2), 805-815.
https://doi.org/10.1007/s10967-019-06986-9

Sarap N, Krneta-Nikolić JD, Trifković JĐ, Janković MM. Assessment of radioactivity contribution and transfer characteristics of natural radionuclides in agroecosystem. in Journal of Radioanalytical and Nuclear Chemistry. 2020;323(2):805-815.
doi:10.1007/s10967-019-06986-9 .

Sarap, Nataša, Krneta-Nikolić, Jelena D., Trifković, Jelena Đ., Janković, Marija M., "Assessment of radioactivity contribution and transfer characteristics of natural radionuclides in agroecosystem" in Journal of Radioanalytical and Nuclear Chemistry, 323, no. 2 (2020):805-815,
https://doi.org/10.1007/s10967-019-06986-9 . .

TY  - JOUR
AU  - Milojkov, Dušan V.
AU  - Silvestre, Oscar F.
AU  - Stanić, Vojislav
AU  - Janjić, Goran V.
AU  - Mutavdžić, Dragosav R.
AU  - Milanović, Marija
AU  - Nieder, Jana B.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8529
AB  - Fluorapatite doped with rare-earth elements has a wide-range of biomedical applications. Here, a new type of fluorapatite nanocrystals doped with praseodymium (FAP-Pr) with excitation-emission profiles in visible part of the spectrum is fabricated. Energy levels of Pr3+ activator ion contain metastable multiplet states that offer the possibility of efficient multicolor emission lines in FAP nanocrystals. Three types of FAP-Pr nanocrystals with 0.1%, 0.5% and 1% atomic percent of Pr3+ (along with the undoped FAP control sample) are studied. Their novel chemical production method is described, the FAP-Pr nanocrystals structure, biocompatibility and the suitability for cell imaging are analyzed. Physicochemical characterization confirms crystals down to nanometer size. In addition, quantum-chemical calculation predicts that Pr3+ ions are incorporated into the FAP crystal lattice at Ca2 (6 h) sites. In vitro viability results shows that FAP-Pr nanocrystals are nontoxic to live cells. Additionally, the cell uptake of the FAP-Pr nanocrystals is studied using fluorescence-based widefield and confocal microscopy. The nanocrystals show characteristic green emission at 545 nm (3P0→3H5 transition of Pr3+ ion) and orange emission at 600 nm (1D2→3H4), which we use to discriminate from cell autofluorescence background. Orthogonal projections across 3D confocal stacks show that the nanocrystals are able to enter the cells positioning themselves within the cytoplasm. Overall, the new FAP-Pr nanocrystals are biocompatible and of the tested types, the 0.5% Pr3+ doped nanocrystals show the highest promise as a tracking nanoparticle probe for bioimaging applications. © 2019
T2  - Journal of Luminescence
T1  - Fabrication and characterization of luminescent Pr3+ doped fluorapatite nanocrystals as bioimaging contrast agents
VL  - 217
SP  - 116757
DO  - 10.1016/j.jlumin.2019.116757
ER  - 

@article{
author = "Milojkov, Dušan V. and Silvestre, Oscar F. and Stanić, Vojislav and Janjić, Goran V. and Mutavdžić, Dragosav R. and Milanović, Marija and Nieder, Jana B.",
year = "2020",
abstract = "Fluorapatite doped with rare-earth elements has a wide-range of biomedical applications. Here, a new type of fluorapatite nanocrystals doped with praseodymium (FAP-Pr) with excitation-emission profiles in visible part of the spectrum is fabricated. Energy levels of Pr3+ activator ion contain metastable multiplet states that offer the possibility of efficient multicolor emission lines in FAP nanocrystals. Three types of FAP-Pr nanocrystals with 0.1%, 0.5% and 1% atomic percent of Pr3+ (along with the undoped FAP control sample) are studied. Their novel chemical production method is described, the FAP-Pr nanocrystals structure, biocompatibility and the suitability for cell imaging are analyzed. Physicochemical characterization confirms crystals down to nanometer size. In addition, quantum-chemical calculation predicts that Pr3+ ions are incorporated into the FAP crystal lattice at Ca2 (6 h) sites. In vitro viability results shows that FAP-Pr nanocrystals are nontoxic to live cells. Additionally, the cell uptake of the FAP-Pr nanocrystals is studied using fluorescence-based widefield and confocal microscopy. The nanocrystals show characteristic green emission at 545 nm (3P0→3H5 transition of Pr3+ ion) and orange emission at 600 nm (1D2→3H4), which we use to discriminate from cell autofluorescence background. Orthogonal projections across 3D confocal stacks show that the nanocrystals are able to enter the cells positioning themselves within the cytoplasm. Overall, the new FAP-Pr nanocrystals are biocompatible and of the tested types, the 0.5% Pr3+ doped nanocrystals show the highest promise as a tracking nanoparticle probe for bioimaging applications. © 2019",
journal = "Journal of Luminescence",
title = "Fabrication and characterization of luminescent Pr3+ doped fluorapatite nanocrystals as bioimaging contrast agents",
volume = "217",
pages = "116757",
doi = "10.1016/j.jlumin.2019.116757"
}

Milojkov, D. V., Silvestre, O. F., Stanić, V., Janjić, G. V., Mutavdžić, D. R., Milanović, M.,& Nieder, J. B.. (2020). Fabrication and characterization of luminescent Pr3+ doped fluorapatite nanocrystals as bioimaging contrast agents. in Journal of Luminescence, 217, 116757.
https://doi.org/10.1016/j.jlumin.2019.116757

Milojkov DV, Silvestre OF, Stanić V, Janjić GV, Mutavdžić DR, Milanović M, Nieder JB. Fabrication and characterization of luminescent Pr3+ doped fluorapatite nanocrystals as bioimaging contrast agents. in Journal of Luminescence. 2020;217:116757.
doi:10.1016/j.jlumin.2019.116757 .

Milojkov, Dušan V., Silvestre, Oscar F., Stanić, Vojislav, Janjić, Goran V., Mutavdžić, Dragosav R., Milanović, Marija, Nieder, Jana B., "Fabrication and characterization of luminescent Pr3+ doped fluorapatite nanocrystals as bioimaging contrast agents" in Journal of Luminescence, 217 (2020):116757,
https://doi.org/10.1016/j.jlumin.2019.116757 . .

TY  - JOUR
AU  - Martinović, Biljana
AU  - Jelić, Ivana V.
AU  - Rikalović, Milena
AU  - Šljivić-Ivanović, Marija Z.
AU  - Radosavljević, Jelena
AU  - Kostić, Aleksandar Ž.
AU  - Adžemović, Mesud
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9640
AB  - The aim of the present study is the comparison of ambient pollution in working environment during infectious medical waste treatment in two relevant health care institutions in the Republic of Serbia - The Blood Transfusion Institute of Serbia and The Clinical Centre of Serbia by different sterilization methods (sterilizer-convertor and autoclave, respectively). Monitoring and analysis of the following chemical compounds were performed in both institutions: water vapor, carbon dioxide, carbon monoxide, hydrochloric acid, methane, ethane, propane, hexane, formaldehyde, benzene, toluene, m-xylene, phenol, acrolein, ethanol, ethyl acetate, ethylamine, ethylene oxide, methanol, dimethyl disulphide, dimethyl sulphide, ethyl mercaptan, methyl mercaptan, freon 11 (trichlorofluoromethane), carbonyl sulphide and hydrogen chloride. The determination of vapor-phase concentrations was done by extractive Fourier transform infrared spectroscopy. Monitoring of ambient pollution during infectious medical waste sterilization has shown that mercaptans, acrolein, formaldehyde, dimethyl sulphide, and ethylene oxide are emitted in both health institutions, in concentrations which are not permitted by regulations, while increased concentrations of hydrogen chloride and phenol were found in the Clinical Centre of Serbia. A comparison of ambient pollution with two different sterilization methods has shown that higher concentrations of pollutants are emitted at higher temperatures. Considering the fact that mentioned compounds exhibit high toxicity, hence represent the risk to air quality in working and living environment, i.e. represents a risk to human health it is necessary to revise and improve the existing treatment methods. © 2020 Parlar Scientific Publications. All rights reserved.
T2  - Fresenius Environmental Bulletin
T1  - Comparison of air pollution in the working environment during in site treatment of infectious medical waste by convertor and autoclave sterilization
VL  - 29
IS  - 4
SP  - 2160
EP  - 2165
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9640
ER  - 

@article{
author = "Martinović, Biljana and Jelić, Ivana V. and Rikalović, Milena and Šljivić-Ivanović, Marija Z. and Radosavljević, Jelena and Kostić, Aleksandar Ž. and Adžemović, Mesud",
year = "2020",
abstract = "The aim of the present study is the comparison of ambient pollution in working environment during infectious medical waste treatment in two relevant health care institutions in the Republic of Serbia - The Blood Transfusion Institute of Serbia and The Clinical Centre of Serbia by different sterilization methods (sterilizer-convertor and autoclave, respectively). Monitoring and analysis of the following chemical compounds were performed in both institutions: water vapor, carbon dioxide, carbon monoxide, hydrochloric acid, methane, ethane, propane, hexane, formaldehyde, benzene, toluene, m-xylene, phenol, acrolein, ethanol, ethyl acetate, ethylamine, ethylene oxide, methanol, dimethyl disulphide, dimethyl sulphide, ethyl mercaptan, methyl mercaptan, freon 11 (trichlorofluoromethane), carbonyl sulphide and hydrogen chloride. The determination of vapor-phase concentrations was done by extractive Fourier transform infrared spectroscopy. Monitoring of ambient pollution during infectious medical waste sterilization has shown that mercaptans, acrolein, formaldehyde, dimethyl sulphide, and ethylene oxide are emitted in both health institutions, in concentrations which are not permitted by regulations, while increased concentrations of hydrogen chloride and phenol were found in the Clinical Centre of Serbia. A comparison of ambient pollution with two different sterilization methods has shown that higher concentrations of pollutants are emitted at higher temperatures. Considering the fact that mentioned compounds exhibit high toxicity, hence represent the risk to air quality in working and living environment, i.e. represents a risk to human health it is necessary to revise and improve the existing treatment methods. © 2020 Parlar Scientific Publications. All rights reserved.",
journal = "Fresenius Environmental Bulletin",
title = "Comparison of air pollution in the working environment during in site treatment of infectious medical waste by convertor and autoclave sterilization",
volume = "29",
number = "4",
pages = "2160-2165",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9640"
}

Martinović, B., Jelić, I. V., Rikalović, M., Šljivić-Ivanović, M. Z., Radosavljević, J., Kostić, A. Ž.,& Adžemović, M.. (2020). Comparison of air pollution in the working environment during in site treatment of infectious medical waste by convertor and autoclave sterilization. in Fresenius Environmental Bulletin, 29(4), 2160-2165.
https://hdl.handle.net/21.15107/rcub_vinar_9640

Martinović B, Jelić IV, Rikalović M, Šljivić-Ivanović MZ, Radosavljević J, Kostić AŽ, Adžemović M. Comparison of air pollution in the working environment during in site treatment of infectious medical waste by convertor and autoclave sterilization. in Fresenius Environmental Bulletin. 2020;29(4):2160-2165.
https://hdl.handle.net/21.15107/rcub_vinar_9640 .

Martinović, Biljana, Jelić, Ivana V., Rikalović, Milena, Šljivić-Ivanović, Marija Z., Radosavljević, Jelena, Kostić, Aleksandar Ž., Adžemović, Mesud, "Comparison of air pollution in the working environment during in site treatment of infectious medical waste by convertor and autoclave sterilization" in Fresenius Environmental Bulletin, 29, no. 4 (2020):2160-2165,
https://hdl.handle.net/21.15107/rcub_vinar_9640 .

TY  - CONF
AU  - Stanković, Srboljub
AU  - Stojić, Tomislav
AU  - Lončar, Boris
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12123
AB  - Gas filled surge arresters are durable and reliable components for safe overvoltage conduction, that operate on the principle of ionization of the isolation medium – gas. Ionizing radiation impacts the properties of the arrester. This paper reports a comparative analysis of the effect of γ and X irradiation on the properties of commercial gas filled surge arresters in impulse operation mode, by application of a semiempiric method of measurement of impulse breach voltage and determination of the impulse (volt-second) characteristic
AB  - Gasni odvodnici prenapona su izdržljive i pouzdane komponente za bezbedno odvođenje prenapona, koje rade na principu jonizacije izolacionog medijuma – gasa. Jonizujuće zračenje utiče na karakteristike odvodnika. U ovom radu prikazana je uporedna analiza uticaja uticaja γ i X zračenja na osobine komercijalnih gasnih odvodnika prenapona u impulsnom režimu rada, primenom poluempirijske metode merenja impulsnog probojnog napona i određivanja impulsne (volt-sekundne) karakteristike.
PB  - Belgrade : ETRAN Society
PB  - Belgrade : Academic Mind
C3  - IcETRAN 2020 : 7th International Conference on Electrical, Electronic and Computing Engineering and ETRAN 2020 : 64th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering; Proceedings book
T1  - Uporedna analiza uticaja γ i X zračenja na karakteristike komercijalnih gasnih odvodnika prenapona u impulsnom režimu rada
T1  - Comparative analysis of the effect of γ and X radiation to properties of commercial gas filled surge arresters in impulse mode
SP  - 545
EP  - 547
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12123
ER  - 

@conference{
author = "Stanković, Srboljub and Stojić, Tomislav and Lončar, Boris",
year = "2020",
abstract = "Gas filled surge arresters are durable and reliable components for safe overvoltage conduction, that operate on the principle of ionization of the isolation medium – gas. Ionizing radiation impacts the properties of the arrester. This paper reports a comparative analysis of the effect of γ and X irradiation on the properties of commercial gas filled surge arresters in impulse operation mode, by application of a semiempiric method of measurement of impulse breach voltage and determination of the impulse (volt-second) characteristic, Gasni odvodnici prenapona su izdržljive i pouzdane komponente za bezbedno odvođenje prenapona, koje rade na principu jonizacije izolacionog medijuma – gasa. Jonizujuće zračenje utiče na karakteristike odvodnika. U ovom radu prikazana je uporedna analiza uticaja uticaja γ i X zračenja na osobine komercijalnih gasnih odvodnika prenapona u impulsnom režimu rada, primenom poluempirijske metode merenja impulsnog probojnog napona i određivanja impulsne (volt-sekundne) karakteristike.",
publisher = "Belgrade : ETRAN Society, Belgrade : Academic Mind",
journal = "IcETRAN 2020 : 7th International Conference on Electrical, Electronic and Computing Engineering and ETRAN 2020 : 64th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering; Proceedings book",
title = "Uporedna analiza uticaja γ i X zračenja na karakteristike komercijalnih gasnih odvodnika prenapona u impulsnom režimu rada, Comparative analysis of the effect of γ and X radiation to properties of commercial gas filled surge arresters in impulse mode",
pages = "545-547",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12123"
}

Stanković, S., Stojić, T.,& Lončar, B.. (2020). Uporedna analiza uticaja γ i X zračenja na karakteristike komercijalnih gasnih odvodnika prenapona u impulsnom režimu rada. in IcETRAN 2020 : 7th International Conference on Electrical, Electronic and Computing Engineering and ETRAN 2020 : 64th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering; Proceedings book
Belgrade : ETRAN Society., 545-547.
https://hdl.handle.net/21.15107/rcub_vinar_12123

Stanković S, Stojić T, Lončar B. Uporedna analiza uticaja γ i X zračenja na karakteristike komercijalnih gasnih odvodnika prenapona u impulsnom režimu rada. in IcETRAN 2020 : 7th International Conference on Electrical, Electronic and Computing Engineering and ETRAN 2020 : 64th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering; Proceedings book. 2020;:545-547.
https://hdl.handle.net/21.15107/rcub_vinar_12123 .

Stanković, Srboljub, Stojić, Tomislav, Lončar, Boris, "Uporedna analiza uticaja γ i X zračenja na karakteristike komercijalnih gasnih odvodnika prenapona u impulsnom režimu rada" in IcETRAN 2020 : 7th International Conference on Electrical, Electronic and Computing Engineering and ETRAN 2020 : 64th National Conference on Electrоnics, Telecommunication, Computing, Automatic Control and Nuclear Engineering; Proceedings book (2020):545-547,
https://hdl.handle.net/21.15107/rcub_vinar_12123 .

TY  - JOUR
AU  - Rubinjoni, Luka Z.
AU  - Stanković, Srboljub
AU  - Lončar, Boris B.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9687
AB  - Cementation is the baseline technology for conditioning of low to intermediate level radioactive waste. Geopolymers, a class of alkali activated binders, are a promising new material for radioactive waste treatment. Coal fly-ash based geopolymers are a low-cost, low greenhouse gas footprint alternative to metakaolin based materials. Both the grouting of sludge/powders/liquids and encapsulation of solids/compacted waste rely on the grout maintaining optimal flow (rheological properties) during the mixing and pouring operations, and achieving a set leading to proper long term solidification (mechanical properties). The initial and final setting time for fly-ash geopolymer paste, based on the SRPS EN 196-3 standard, has been measured upon irradiation by gamma rays in a 60Co reference field positioned with a kerma air rate of 3.42 mGys–1. The binder paste was prepared using fly-ash from the TENT B power plant's electrostatic filters without further sieving, activated by water glass with module 1.5 and mixed with distilled water until a satisfactory flow was obtained, and poured into the sample and control molds. The initial and final setting times for the irradiated sample and non-irradiated control were determined by the Vicat apparatus. The irradiated sample demonstrated an 11 % shorter initial setting time, and 16 % shorter final setting time, compared to the control.
T2  - Nuclear Technology and Radiation Protection
T1  - The effect of 60Co gamma irradiation on coal fly-ash geopolymer paste setting time
VL  - 35
IS  - 2
SP  - 150
EP  - 153
DO  - 10.2298/NTRP2002150R
ER  - 

@article{
author = "Rubinjoni, Luka Z. and Stanković, Srboljub and Lončar, Boris B.",
year = "2020",
abstract = "Cementation is the baseline technology for conditioning of low to intermediate level radioactive waste. Geopolymers, a class of alkali activated binders, are a promising new material for radioactive waste treatment. Coal fly-ash based geopolymers are a low-cost, low greenhouse gas footprint alternative to metakaolin based materials. Both the grouting of sludge/powders/liquids and encapsulation of solids/compacted waste rely on the grout maintaining optimal flow (rheological properties) during the mixing and pouring operations, and achieving a set leading to proper long term solidification (mechanical properties). The initial and final setting time for fly-ash geopolymer paste, based on the SRPS EN 196-3 standard, has been measured upon irradiation by gamma rays in a 60Co reference field positioned with a kerma air rate of 3.42 mGys–1. The binder paste was prepared using fly-ash from the TENT B power plant's electrostatic filters without further sieving, activated by water glass with module 1.5 and mixed with distilled water until a satisfactory flow was obtained, and poured into the sample and control molds. The initial and final setting times for the irradiated sample and non-irradiated control were determined by the Vicat apparatus. The irradiated sample demonstrated an 11 % shorter initial setting time, and 16 % shorter final setting time, compared to the control.",
journal = "Nuclear Technology and Radiation Protection",
title = "The effect of 60Co gamma irradiation on coal fly-ash geopolymer paste setting time",
volume = "35",
number = "2",
pages = "150-153",
doi = "10.2298/NTRP2002150R"
}

Rubinjoni, L. Z., Stanković, S.,& Lončar, B. B.. (2020). The effect of 60Co gamma irradiation on coal fly-ash geopolymer paste setting time. in Nuclear Technology and Radiation Protection, 35(2), 150-153.
https://doi.org/10.2298/NTRP2002150R

Rubinjoni LZ, Stanković S, Lončar BB. The effect of 60Co gamma irradiation on coal fly-ash geopolymer paste setting time. in Nuclear Technology and Radiation Protection. 2020;35(2):150-153.
doi:10.2298/NTRP2002150R .

Rubinjoni, Luka Z., Stanković, Srboljub, Lončar, Boris B., "The effect of 60Co gamma irradiation on coal fly-ash geopolymer paste setting time" in Nuclear Technology and Radiation Protection, 35, no. 2 (2020):150-153,
https://doi.org/10.2298/NTRP2002150R . .

TY  - CONF
AU  - Radomirović, Milena Lj.
AU  - Tanaskovski, Bojan
AU  - Mandić, Milica
AU  - Pezo, Lato
AU  - Maksin, Danijela
AU  - Onjia, Antonije E.
AU  - Stanković, Slavka
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10714
AB  - Ovo istraživanje sprovedeno je u Bokokotorskom zalivu radi procene kvaliteta površinskog sedimenata, a time i stanja morske sredine. ED-XRF metodom elementarne analize određen je sadržaj velikog broja elemenata i oksida u površinskim sedimentima uzorkovanih sa 12 lokacija u 2019. godini. Multivarijantnom statističkom analizom, kao što su analiza glavnih komponenati (PCA) i klaster analiza (CA), urađena je analiza dobijenih podataka kako bi se dobila sveobuhvatna raspodela ispitivanih elemenata po lokacijama u zalivu i njihovo poreklo, kao i sličnosti/razlike grupa uzoraka u hemijskom sastavu.
AB  - This study was carried out in the Bay of Boka Kotor in order to assess the surface sediment
quality and thereby to evaluate the status of the marine environment. The method of
elementary analysis, ED-XRF was used to determine the content of elements and oxides in
surface sediments sampled at 12 stations in 2019. Multivariate statistical methods, such as
principal component analysis (PCA) and cluster analysis (CA) were used to analyse the data
in order to obtain a comprehensive distribution of the examined elements according to
locations in the bay, and their origin, as well as similarities/differences of samples in chemical
composition.
PB  - Srpsko društvo za zaštitu voda, Trebinje, Bosna i Hercegovina
C3  - Voda 2020 : Proceedings
T1  - Prostorna raspodela i identifikacija elemenata i oksida u površinskom sedimentu Bokokotorskog zaliva
T1  - Spatial distribution and identification
of elements and oxides in surface
sediments of the Boka Kotor bay
SP  - 333
EP  - 338
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10714
ER  - 

@conference{
author = "Radomirović, Milena Lj. and Tanaskovski, Bojan and Mandić, Milica and Pezo, Lato and Maksin, Danijela and Onjia, Antonije E. and Stanković, Slavka",
year = "2020",
abstract = "Ovo istraživanje sprovedeno je u Bokokotorskom zalivu radi procene kvaliteta površinskog sedimenata, a time i stanja morske sredine. ED-XRF metodom elementarne analize određen je sadržaj velikog broja elemenata i oksida u površinskim sedimentima uzorkovanih sa 12 lokacija u 2019. godini. Multivarijantnom statističkom analizom, kao što su analiza glavnih komponenati (PCA) i klaster analiza (CA), urađena je analiza dobijenih podataka kako bi se dobila sveobuhvatna raspodela ispitivanih elemenata po lokacijama u zalivu i njihovo poreklo, kao i sličnosti/razlike grupa uzoraka u hemijskom sastavu., This study was carried out in the Bay of Boka Kotor in order to assess the surface sediment
quality and thereby to evaluate the status of the marine environment. The method of
elementary analysis, ED-XRF was used to determine the content of elements and oxides in
surface sediments sampled at 12 stations in 2019. Multivariate statistical methods, such as
principal component analysis (PCA) and cluster analysis (CA) were used to analyse the data
in order to obtain a comprehensive distribution of the examined elements according to
locations in the bay, and their origin, as well as similarities/differences of samples in chemical
composition.",
publisher = "Srpsko društvo za zaštitu voda, Trebinje, Bosna i Hercegovina",
journal = "Voda 2020 : Proceedings",
title = "Prostorna raspodela i identifikacija elemenata i oksida u površinskom sedimentu Bokokotorskog zaliva, Spatial distribution and identification
of elements and oxides in surface
sediments of the Boka Kotor bay",
pages = "333-338",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10714"
}

Radomirović, M. Lj., Tanaskovski, B., Mandić, M., Pezo, L., Maksin, D., Onjia, A. E.,& Stanković, S.. (2020). Prostorna raspodela i identifikacija elemenata i oksida u površinskom sedimentu Bokokotorskog zaliva. in Voda 2020 : Proceedings
Srpsko društvo za zaštitu voda, Trebinje, Bosna i Hercegovina., 333-338.
https://hdl.handle.net/21.15107/rcub_vinar_10714

Radomirović ML, Tanaskovski B, Mandić M, Pezo L, Maksin D, Onjia AE, Stanković S. Prostorna raspodela i identifikacija elemenata i oksida u površinskom sedimentu Bokokotorskog zaliva. in Voda 2020 : Proceedings. 2020;:333-338.
https://hdl.handle.net/21.15107/rcub_vinar_10714 .

Radomirović, Milena Lj., Tanaskovski, Bojan, Mandić, Milica, Pezo, Lato, Maksin, Danijela, Onjia, Antonije E., Stanković, Slavka, "Prostorna raspodela i identifikacija elemenata i oksida u površinskom sedimentu Bokokotorskog zaliva" in Voda 2020 : Proceedings (2020):333-338,
https://hdl.handle.net/21.15107/rcub_vinar_10714 .

TY  - JOUR
AU  - Todorović, Marija N.
AU  - Radenković, Mirjana
AU  - Onjia, Antonije E.
AU  - Ignjatović, Ljubiša M.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9105
AB  - Designated as the most harmful for health, PM2.5 aerosol fraction was a subject of our study. It was collected for all four seasons during 2014/15 in the suburban area of Belgrade (Serbia) and analysed for Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Br, As, Ba and Pb elements and for NH4+, NO3− and SO42− ions by particle-induced X-ray emission and ion chromatography techniques, respectively. Obtained concentrations have been treated by a combination of several receptor-oriented models to reveal source contributions to the suburban PM2.5 at different spatial scales. Applied positive matrix factorization analysis indicated five main groups of emission sources: biomass burning (14.5%), traffic (3.9%), regional combustion/secondary sulphates (28.8%), local combustion/secondary nitrates (29.7%) and soil (5.4%). Local heating units had been pointed out as dominant contributors by long-range transport and ground-wind circulation analyses. Air masses circulating over the Balkan Peninsula denoted regional emissions as responsible for the high concentrations of secondary sulphates. Local and long-range transport analyses combined suggested that the BB and the LC/NO3 originated from the wider urban area. Several Saharan dust episodes were detected as well. Presented results might be a basis for the development of air pollution mitigation strategies in the continental Balkan area, considered one of the most polluted and under-investigated European regions.
T2  - Environmental Science and Pollution Research
T1  - Characterization of PM2.5 sources in a Belgrade suburban area: a multi-scale receptor-oriented approach
VL  - 27
IS  - 33
SP  - 41717
EP  - 41730
DO  - 10.1007/s11356-020-10129-z
ER  - 

@article{
author = "Todorović, Marija N. and Radenković, Mirjana and Onjia, Antonije E. and Ignjatović, Ljubiša M.",
year = "2020",
abstract = "Designated as the most harmful for health, PM2.5 aerosol fraction was a subject of our study. It was collected for all four seasons during 2014/15 in the suburban area of Belgrade (Serbia) and analysed for Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Br, As, Ba and Pb elements and for NH4+, NO3− and SO42− ions by particle-induced X-ray emission and ion chromatography techniques, respectively. Obtained concentrations have been treated by a combination of several receptor-oriented models to reveal source contributions to the suburban PM2.5 at different spatial scales. Applied positive matrix factorization analysis indicated five main groups of emission sources: biomass burning (14.5%), traffic (3.9%), regional combustion/secondary sulphates (28.8%), local combustion/secondary nitrates (29.7%) and soil (5.4%). Local heating units had been pointed out as dominant contributors by long-range transport and ground-wind circulation analyses. Air masses circulating over the Balkan Peninsula denoted regional emissions as responsible for the high concentrations of secondary sulphates. Local and long-range transport analyses combined suggested that the BB and the LC/NO3 originated from the wider urban area. Several Saharan dust episodes were detected as well. Presented results might be a basis for the development of air pollution mitigation strategies in the continental Balkan area, considered one of the most polluted and under-investigated European regions.",
journal = "Environmental Science and Pollution Research",
title = "Characterization of PM2.5 sources in a Belgrade suburban area: a multi-scale receptor-oriented approach",
volume = "27",
number = "33",
pages = "41717-41730",
doi = "10.1007/s11356-020-10129-z"
}

Todorović, M. N., Radenković, M., Onjia, A. E.,& Ignjatović, L. M.. (2020). Characterization of PM2.5 sources in a Belgrade suburban area: a multi-scale receptor-oriented approach. in Environmental Science and Pollution Research, 27(33), 41717-41730.
https://doi.org/10.1007/s11356-020-10129-z

Todorović MN, Radenković M, Onjia AE, Ignjatović LM. Characterization of PM2.5 sources in a Belgrade suburban area: a multi-scale receptor-oriented approach. in Environmental Science and Pollution Research. 2020;27(33):41717-41730.
doi:10.1007/s11356-020-10129-z .

Todorović, Marija N., Radenković, Mirjana, Onjia, Antonije E., Ignjatović, Ljubiša M., "Characterization of PM2.5 sources in a Belgrade suburban area: a multi-scale receptor-oriented approach" in Environmental Science and Pollution Research, 27, no. 33 (2020):41717-41730,
https://doi.org/10.1007/s11356-020-10129-z . .

TY  - JOUR
AU  - Krajinović, Marko
AU  - Dobrić, Milan R.
AU  - Ciraj-Bjelac, Olivera
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9066
AB  - Numerous cases of radiation-induced tissue reactions following interventional cardiology (IC) procedures have been reported, resulting in the need for an optimized and personalized dosimetry. At present, there are many fluoroscopy units without Digital Imaging and Communications in Medicine (DICOM) Radiation Dose Structured Report globally installed. Many of these have not been updated yet, and may never be, therefore, the main objectives of this paper are to develop an offline skin dose mapping application, which uses DICOM headers for the peak skin dose (PSD) assessment and to compare the PSD assessment results to XR-RV3 Gafchromic film for common IC procedures. The mean deviation between the measured and the calculated PSD was 8.7 ± 26.3%. Simulated skin dose map showed good matching with XR-RV3 Gafchromic film. The skin dose mapping application presented in this paper is an elegant solution and a suitable alternative to XR-RV3 Gafchromic film.
T2  - Radiation Protection Dosimetry
T1  - Skin dose mapping in interventional cardiology: a practical solution
VL  - 188
IS  - 4
SP  - 508
EP  - 515
DO  - 10.1093/rpd/ncaa002
ER  - 

@article{
author = "Krajinović, Marko and Dobrić, Milan R. and Ciraj-Bjelac, Olivera",
year = "2020",
abstract = "Numerous cases of radiation-induced tissue reactions following interventional cardiology (IC) procedures have been reported, resulting in the need for an optimized and personalized dosimetry. At present, there are many fluoroscopy units without Digital Imaging and Communications in Medicine (DICOM) Radiation Dose Structured Report globally installed. Many of these have not been updated yet, and may never be, therefore, the main objectives of this paper are to develop an offline skin dose mapping application, which uses DICOM headers for the peak skin dose (PSD) assessment and to compare the PSD assessment results to XR-RV3 Gafchromic film for common IC procedures. The mean deviation between the measured and the calculated PSD was 8.7 ± 26.3%. Simulated skin dose map showed good matching with XR-RV3 Gafchromic film. The skin dose mapping application presented in this paper is an elegant solution and a suitable alternative to XR-RV3 Gafchromic film.",
journal = "Radiation Protection Dosimetry",
title = "Skin dose mapping in interventional cardiology: a practical solution",
volume = "188",
number = "4",
pages = "508-515",
doi = "10.1093/rpd/ncaa002"
}

Krajinović, M., Dobrić, M. R.,& Ciraj-Bjelac, O.. (2020). Skin dose mapping in interventional cardiology: a practical solution. in Radiation Protection Dosimetry, 188(4), 508-515.
https://doi.org/10.1093/rpd/ncaa002

Krajinović M, Dobrić MR, Ciraj-Bjelac O. Skin dose mapping in interventional cardiology: a practical solution. in Radiation Protection Dosimetry. 2020;188(4):508-515.
doi:10.1093/rpd/ncaa002 .

Krajinović, Marko, Dobrić, Milan R., Ciraj-Bjelac, Olivera, "Skin dose mapping in interventional cardiology: a practical solution" in Radiation Protection Dosimetry, 188, no. 4 (2020):508-515,
https://doi.org/10.1093/rpd/ncaa002 . .

TY  - JOUR
AU  - Smičiklas, Ivana D.
AU  - Lazić, Vesna M.
AU  - Živković, Ljiljana
AU  - Porobić, Slavica
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8172
AB  - The sorption ability of biogenic hydroxyapatite (BHAP) towards heavy metal ions (Pb, Cu, Ni, Cd, and Zn) is compared with functionalized BHAP powders with caffeic acid (CA) and 3,4-dihydroxybenzoic acid (3,4-DHBA). The functionalization of the BHAP with either CA or 3,4-DHBA is indicated by the appearance of the colored powders due to the formation of the interfacial charge transfer (ICT) complexes. The detailed characterization of as-prepared and functionalized BHAP samples was performed using transmission electron microscopy, reflection spectroscopy, thermogravimetric analysis and determination of zeta potential. All three sorbents clearly displayed preferential sorption of Pb ions when the total concentration of multi-component equimolar solutions of heavy metal ions is high. It should be emphasized that the sorption capacity of functionalized BHAP with either CA or 3,4-BHAP was found to be higher, up to 60%, compared to as-prepared BHAP without the decrease of selectivity towards Pb ions. © 2019, © 2019 Taylor & Francis Group, LLC.
T2  - Journal of Environmental Science and Health, Part A
T1  - Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid
VL  - 54
IS  - 9
SP  - 899
EP  - 905
DO  - 10.1080/10934529.2019.1606575
ER  - 

@article{
author = "Smičiklas, Ivana D. and Lazić, Vesna M. and Živković, Ljiljana and Porobić, Slavica and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2019",
abstract = "The sorption ability of biogenic hydroxyapatite (BHAP) towards heavy metal ions (Pb, Cu, Ni, Cd, and Zn) is compared with functionalized BHAP powders with caffeic acid (CA) and 3,4-dihydroxybenzoic acid (3,4-DHBA). The functionalization of the BHAP with either CA or 3,4-DHBA is indicated by the appearance of the colored powders due to the formation of the interfacial charge transfer (ICT) complexes. The detailed characterization of as-prepared and functionalized BHAP samples was performed using transmission electron microscopy, reflection spectroscopy, thermogravimetric analysis and determination of zeta potential. All three sorbents clearly displayed preferential sorption of Pb ions when the total concentration of multi-component equimolar solutions of heavy metal ions is high. It should be emphasized that the sorption capacity of functionalized BHAP with either CA or 3,4-BHAP was found to be higher, up to 60%, compared to as-prepared BHAP without the decrease of selectivity towards Pb ions. © 2019, © 2019 Taylor & Francis Group, LLC.",
journal = "Journal of Environmental Science and Health, Part A",
title = "Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid",
volume = "54",
number = "9",
pages = "899-905",
doi = "10.1080/10934529.2019.1606575"
}

Smičiklas, I. D., Lazić, V. M., Živković, L., Porobić, S., Ahrenkiel, S. P.,& Nedeljković, J.. (2019). Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid. in Journal of Environmental Science and Health, Part A, 54(9), 899-905.
https://doi.org/10.1080/10934529.2019.1606575

Smičiklas ID, Lazić VM, Živković L, Porobić S, Ahrenkiel SP, Nedeljković J. Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid. in Journal of Environmental Science and Health, Part A. 2019;54(9):899-905.
doi:10.1080/10934529.2019.1606575 .

Smičiklas, Ivana D., Lazić, Vesna M., Živković, Ljiljana, Porobić, Slavica, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Sorption of divalent heavy metal ions onto functionalized biogenic hydroxyapatite with caffeic acid and 3,4-dihydroxybenzoic acid" in Journal of Environmental Science and Health, Part A, 54, no. 9 (2019):899-905,
https://doi.org/10.1080/10934529.2019.1606575 . .