TY  - JOUR
AU  - Milosavljević, Saša
AU  - Jadranin, Milka
AU  - Mladenović, Mića
AU  - Tešević, Vele
AU  - Menković, Nebojša
AU  - Mutavdžić, Dragoslav
AU  - Krstić, Gordana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4681
AB  - The aim of this research was to verify the authenticity of monofloral honeys from the territory of the Republic of Serbia on the basis of physicochemical parameters routinely measured in honey quality control using multivariate analysis. Seventeen samples of monofloral honey (11 samples of acacia honey and 6 samples of sunflower honey) from the territory of the Republic of Serbia were analyzed. Physico-chemical analysis of the samples included the examination of basic quality parameters and qualitative and quantitative analyses of phenolic compounds. In the samples tested, a total of 93 phenolic compounds were tentatively identified, and 19 of them were quantified. The obtained physicochemical analysis of the data served as input for the multivariate analysis. The hеаt map, which is useful for visualizing numerical data, was used for this purpose. The obtained results showed that the applied data can serve to clearly separate acacia and sunflower honeys.
AB  - Целта на ова истражување е да се потврди автентичноста на моноцветен мед од територијата на Република Србија врз основа на физичкохемиските параметри што рутински се мерат при контрола на квалитет на мед со примена на мултиваријантна анализа. Беа анализирани 17 примероци на моноцветен мед (11 примероци мед од акација и 6 примероци мед од сончоглед) од територијата на Република Србија. Физичкохемиските анализа на примероците вклучуваа испитување на основните параметри за квалитет како и квалитативна и квантитативна анализа на фенолните соединенија. Во примероците што беа тестирани, хипотетички беа идентификувани вкупно 93 фенолни соединенија, а 19 од нив беа и квантификувани. Добиените податоци од физичкохемиска анализа на овие податоци беа употребени како влезна податоци за мултиваријантна анализа. Беше применета топлинска мапа која е корисна за визуализација на нумеричките податоци. Добиените резултати покажуваат дека применетите податоци може да послужат за јасно да се раздели медот од акација и од сончоглед.
PB  - North Macedonia : Society of Chemists and Technologists of Macedonia
T2  - Macedonian Journal of Chemistry and Chemical Engineering
T1  - Phytochemical parameters as indicators of the authenticity of monofloral honey from the territory of the Republic of Serbia
T1  - Физичкохемијски параметри како индикатори на автентичноста на монофлорален мед од територијата на Република Србија
VL  - 40
IS  - 1
DO  - 10.20450/mjcce.2021.2186
ER  - 

@article{
author = "Milosavljević, Saša and Jadranin, Milka and Mladenović, Mića and Tešević, Vele and Menković, Nebojša and Mutavdžić, Dragoslav and Krstić, Gordana",
year = "2021",
abstract = "The aim of this research was to verify the authenticity of monofloral honeys from the territory of the Republic of Serbia on the basis of physicochemical parameters routinely measured in honey quality control using multivariate analysis. Seventeen samples of monofloral honey (11 samples of acacia honey and 6 samples of sunflower honey) from the territory of the Republic of Serbia were analyzed. Physico-chemical analysis of the samples included the examination of basic quality parameters and qualitative and quantitative analyses of phenolic compounds. In the samples tested, a total of 93 phenolic compounds were tentatively identified, and 19 of them were quantified. The obtained physicochemical analysis of the data served as input for the multivariate analysis. The hеаt map, which is useful for visualizing numerical data, was used for this purpose. The obtained results showed that the applied data can serve to clearly separate acacia and sunflower honeys., Целта на ова истражување е да се потврди автентичноста на моноцветен мед од територијата на Република Србија врз основа на физичкохемиските параметри што рутински се мерат при контрола на квалитет на мед со примена на мултиваријантна анализа. Беа анализирани 17 примероци на моноцветен мед (11 примероци мед од акација и 6 примероци мед од сончоглед) од територијата на Република Србија. Физичкохемиските анализа на примероците вклучуваа испитување на основните параметри за квалитет како и квалитативна и квантитативна анализа на фенолните соединенија. Во примероците што беа тестирани, хипотетички беа идентификувани вкупно 93 фенолни соединенија, а 19 од нив беа и квантификувани. Добиените податоци од физичкохемиска анализа на овие податоци беа употребени како влезна податоци за мултиваријантна анализа. Беше применета топлинска мапа која е корисна за визуализација на нумеричките податоци. Добиените резултати покажуваат дека применетите податоци може да послужат за јасно да се раздели медот од акација и од сончоглед.",
publisher = "North Macedonia : Society of Chemists and Technologists of Macedonia",
journal = "Macedonian Journal of Chemistry and Chemical Engineering",
title = "Phytochemical parameters as indicators of the authenticity of monofloral honey from the territory of the Republic of Serbia, Физичкохемијски параметри како индикатори на автентичноста на монофлорален мед од територијата на Република Србија",
volume = "40",
number = "1",
doi = "10.20450/mjcce.2021.2186"
}

Milosavljević, S., Jadranin, M., Mladenović, M., Tešević, V., Menković, N., Mutavdžić, D.,& Krstić, G.. (2021). Phytochemical parameters as indicators of the authenticity of monofloral honey from the territory of the Republic of Serbia. in Macedonian Journal of Chemistry and Chemical Engineering
North Macedonia : Society of Chemists and Technologists of Macedonia., 40(1).
https://doi.org/10.20450/mjcce.2021.2186

Milosavljević S, Jadranin M, Mladenović M, Tešević V, Menković N, Mutavdžić D, Krstić G. Phytochemical parameters as indicators of the authenticity of monofloral honey from the territory of the Republic of Serbia. in Macedonian Journal of Chemistry and Chemical Engineering. 2021;40(1).
doi:10.20450/mjcce.2021.2186 .

Milosavljević, Saša, Jadranin, Milka, Mladenović, Mića, Tešević, Vele, Menković, Nebojša, Mutavdžić, Dragoslav, Krstić, Gordana, "Phytochemical parameters as indicators of the authenticity of monofloral honey from the territory of the Republic of Serbia" in Macedonian Journal of Chemistry and Chemical Engineering, 40, no. 1 (2021),
https://doi.org/10.20450/mjcce.2021.2186 . .

TY  - JOUR
AU  - Jovanović, Jelena
AU  - Ćirković, Jovana
AU  - Radojković, Aleksandar M.
AU  - Mutavdžić, Dragosav
AU  - Tanasijević, Gordana
AU  - Joksimović, Kristina
AU  - Bakić, Gordana M.
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4702
AB  - This investigation was aimed to develop films and coatings based on natural biopolymers and active components, with physicochemical and functional properties for application in antimicrobial packaging. Biopolymer films were obtained from emulsions and dispersions by casting method. Coatings were formed by the application of emulsions on existing packaging. Synthesis of emulsions and dispersions were performed by combining biopolymers (chitosan-gelatin, pectin-gelatin) with lemongrass essential oil (LEO), Zn(CH3COO)2•2H2O, or ZnO, as active components. Fourier transform infrared (FTIR) spectra of the films showed that the addition of glycerol contributed to the forming of strong hydrogen bonds between glycerol and chitosan-gelatin or pectin-gelatin composites, facilitating the process of polymer branching, which is substantial for encapsulation. Thermal analyses revealed two characteristic processes occurring at 110 °C (water evaporation) and within 215–235 °C (degradation of polysaccharide and glycerol). Major weight losses were observed at 290 °C (chitosan-gelatin films) and 215 °C (pectin-gelatin films). The chitosan-gelatin films exhibited a lower degree of solubility (31–21%), and better mechanical properties comparing with the pectin-gelatin films. The chitosan-gelatin emulsions and dispersions exhibited a higher antibacterial effect in vitro against E. coli, B. subtilis, and S. aureus. In the case of the pectin-gelatin emulsions, the impact of LEO on the antibacterial activity was evident. The effects of biopolymer coatings on the development of microorganisms on fresh raspberries (Rubus idaeus L.) were performed in vivo during eight days of raspberry storage at refrigerator temperature. The tested coatings extended the shelf life of stored raspberries from four to eight days. The synergistic effect between LEO and ZnO or Zn-Ac was observed both in vivo and in vitro.
PB  - Elsevier
T2  - Progress in Organic Coatings
T1  - Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging
VL  - 158
SP  - 106349
DO  - 10.1016/j.porgcoat.2021.106349
ER  - 

@article{
author = "Jovanović, Jelena and Ćirković, Jovana and Radojković, Aleksandar M. and Mutavdžić, Dragosav and Tanasijević, Gordana and Joksimović, Kristina and Bakić, Gordana M. and Branković, Goran and Branković, Zorica",
year = "2021",
abstract = "This investigation was aimed to develop films and coatings based on natural biopolymers and active components, with physicochemical and functional properties for application in antimicrobial packaging. Biopolymer films were obtained from emulsions and dispersions by casting method. Coatings were formed by the application of emulsions on existing packaging. Synthesis of emulsions and dispersions were performed by combining biopolymers (chitosan-gelatin, pectin-gelatin) with lemongrass essential oil (LEO), Zn(CH3COO)2•2H2O, or ZnO, as active components. Fourier transform infrared (FTIR) spectra of the films showed that the addition of glycerol contributed to the forming of strong hydrogen bonds between glycerol and chitosan-gelatin or pectin-gelatin composites, facilitating the process of polymer branching, which is substantial for encapsulation. Thermal analyses revealed two characteristic processes occurring at 110 °C (water evaporation) and within 215–235 °C (degradation of polysaccharide and glycerol). Major weight losses were observed at 290 °C (chitosan-gelatin films) and 215 °C (pectin-gelatin films). The chitosan-gelatin films exhibited a lower degree of solubility (31–21%), and better mechanical properties comparing with the pectin-gelatin films. The chitosan-gelatin emulsions and dispersions exhibited a higher antibacterial effect in vitro against E. coli, B. subtilis, and S. aureus. In the case of the pectin-gelatin emulsions, the impact of LEO on the antibacterial activity was evident. The effects of biopolymer coatings on the development of microorganisms on fresh raspberries (Rubus idaeus L.) were performed in vivo during eight days of raspberry storage at refrigerator temperature. The tested coatings extended the shelf life of stored raspberries from four to eight days. The synergistic effect between LEO and ZnO or Zn-Ac was observed both in vivo and in vitro.",
publisher = "Elsevier",
journal = "Progress in Organic Coatings",
title = "Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging",
volume = "158",
pages = "106349",
doi = "10.1016/j.porgcoat.2021.106349"
}

Jovanović, J., Ćirković, J., Radojković, A. M., Mutavdžić, D., Tanasijević, G., Joksimović, K., Bakić, G. M., Branković, G.,& Branković, Z.. (2021). Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging. in Progress in Organic Coatings
Elsevier., 158, 106349.
https://doi.org/10.1016/j.porgcoat.2021.106349

Jovanović J, Ćirković J, Radojković AM, Mutavdžić D, Tanasijević G, Joksimović K, Bakić GM, Branković G, Branković Z. Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging. in Progress in Organic Coatings. 2021;158:106349.
doi:10.1016/j.porgcoat.2021.106349 .

Jovanović, Jelena, Ćirković, Jovana, Radojković, Aleksandar M., Mutavdžić, Dragosav, Tanasijević, Gordana, Joksimović, Kristina, Bakić, Gordana M., Branković, Goran, Branković, Zorica, "Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging" in Progress in Organic Coatings, 158 (2021):106349,
https://doi.org/10.1016/j.porgcoat.2021.106349 . .

TY  - JOUR
AU  - Milojkov, Dušan V.
AU  - Silvestre, Oscar F.
AU  - Stanić, Vojislav Dj.
AU  - Janjić, Goran
AU  - Mutavdžić, Dragosav
AU  - Milanović, Marija
AU  - Nieder, Jana B.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3275
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.
PB  - Elsevier
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 Dj. and Janjić, Goran and Mutavdžić, Dragosav 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.",
publisher = "Elsevier",
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. Dj., Janjić, G., Mutavdžić, D., Milanović, M.,& Nieder, J. B.. (2020). Fabrication and characterization of luminescent Pr3+ doped fluorapatite nanocrystals as bioimaging contrast agents. in Journal of Luminescence
Elsevier., 217, 116757.
https://doi.org/10.1016/j.jlumin.2019.116757

Milojkov DV, Silvestre OF, Stanić VD, Janjić G, Mutavdžić D, 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 Dj., Janjić, Goran, Mutavdžić, Dragosav, 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  - Milojkov, Dušan V.
AU  - Silvestre, Oscar F.
AU  - Stanić, Vojislav Dj.
AU  - Janjić, Goran
AU  - Mutavdžić, Dragosav
AU  - Milanović, Marija
AU  - Nieder, Jana B.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3276
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.
PB  - Elsevier
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 Dj. and Janjić, Goran and Mutavdžić, Dragosav 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.",
publisher = "Elsevier",
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. Dj., Janjić, G., Mutavdžić, D., Milanović, M.,& Nieder, J. B.. (2020). Fabrication and characterization of luminescent Pr3+ doped fluorapatite nanocrystals as bioimaging contrast agents. in Journal of Luminescence
Elsevier., 217, 116757.
https://doi.org/10.1016/j.jlumin.2019.116757

Milojkov DV, Silvestre OF, Stanić VD, Janjić G, Mutavdžić D, 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 Dj., Janjić, Goran, Mutavdžić, Dragosav, 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  - Milojkov, Dušan
AU  - Stanić, Vojislav
AU  - Dimović, Slavko
AU  - Mutavdžić, Dragosav
AU  - Živković-Radovanović, Vukosava
AU  - Janjić, Goran
AU  - Radotić, Ksenija
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3254
AB  - In the present study we have analyzed effects of Ag+ ions doping on energetic profiles of nanophosphors materials based on fluorapatite crystal system. The UV radiation absorption and luminescence properties of monophase fluorapatite (FAP) and Ag+ doped fluorapatite (AgFAP) nanomaterials obtained by neutralization method were investigated using the photoluminescence spectrophotometry. The excitation-emission profiles of nanomaterials were analyzed statistically by MCR-ALS method and number of fluorophores was extracted. FAP lattice absorbed light at 350 nm in the UVA part of spectrum, and with increasing concentration of Ag+ ions new absorption maximum appeared at 270 nm in the UVC part. Fluorescence of FAP nanoparticles was in violet region of visible part of the spectrum, with a red shift to the green region when Ag+ was doped in lattice. MCR-ALS analyses of fluorescence spectra confirm formation of two maxima, at 484 and 505 nm, as a consequence of Ag+ ions doping in FAP lattice at Ca1 (4f) sites. The results of quantum chemical calculations showed that an Ag+ ion is stronger bonded to the binding site 1 (-1352:6 kcal/mol) than to the binding site 2 (-1249:0 kcal/mol). Considering that AgFAP1 nanopowder absorbs photons over all part of UV radiation spectrum, this material might be used as potential radiation protective nanomaterial.
PB  - Polish Academy of Sciences
T2  - Acta Physica Polonica A
T1  - Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method
VL  - 136
IS  - 1
SP  - 86
EP  - 91
DO  - 10.12693/APhysPolA.136.86
ER  - 

@article{
author = "Milojkov, Dušan and Stanić, Vojislav and Dimović, Slavko and Mutavdžić, Dragosav and Živković-Radovanović, Vukosava and Janjić, Goran and Radotić, Ksenija",
year = "2019",
abstract = "In the present study we have analyzed effects of Ag+ ions doping on energetic profiles of nanophosphors materials based on fluorapatite crystal system. The UV radiation absorption and luminescence properties of monophase fluorapatite (FAP) and Ag+ doped fluorapatite (AgFAP) nanomaterials obtained by neutralization method were investigated using the photoluminescence spectrophotometry. The excitation-emission profiles of nanomaterials were analyzed statistically by MCR-ALS method and number of fluorophores was extracted. FAP lattice absorbed light at 350 nm in the UVA part of spectrum, and with increasing concentration of Ag+ ions new absorption maximum appeared at 270 nm in the UVC part. Fluorescence of FAP nanoparticles was in violet region of visible part of the spectrum, with a red shift to the green region when Ag+ was doped in lattice. MCR-ALS analyses of fluorescence spectra confirm formation of two maxima, at 484 and 505 nm, as a consequence of Ag+ ions doping in FAP lattice at Ca1 (4f) sites. The results of quantum chemical calculations showed that an Ag+ ion is stronger bonded to the binding site 1 (-1352:6 kcal/mol) than to the binding site 2 (-1249:0 kcal/mol). Considering that AgFAP1 nanopowder absorbs photons over all part of UV radiation spectrum, this material might be used as potential radiation protective nanomaterial.",
publisher = "Polish Academy of Sciences",
journal = "Acta Physica Polonica A",
title = "Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method",
volume = "136",
number = "1",
pages = "86-91",
doi = "10.12693/APhysPolA.136.86"
}

Milojkov, D., Stanić, V., Dimović, S., Mutavdžić, D., Živković-Radovanović, V., Janjić, G.,& Radotić, K.. (2019). Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method. in Acta Physica Polonica A
Polish Academy of Sciences., 136(1), 86-91.
https://doi.org/10.12693/APhysPolA.136.86

Milojkov D, Stanić V, Dimović S, Mutavdžić D, Živković-Radovanović V, Janjić G, Radotić K. Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method. in Acta Physica Polonica A. 2019;136(1):86-91.
doi:10.12693/APhysPolA.136.86 .

Milojkov, Dušan, Stanić, Vojislav, Dimović, Slavko, Mutavdžić, Dragosav, Živković-Radovanović, Vukosava, Janjić, Goran, Radotić, Ksenija, "Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method" in Acta Physica Polonica A, 136, no. 1 (2019):86-91,
https://doi.org/10.12693/APhysPolA.136.86 . .

TY  - JOUR
AU  - Markovic, Jelena M.
AU  - Trišović, Nemanja
AU  - Mutavdžić, Dragosav
AU  - Radotić, Ksenija
AU  - Juranić, Ivan
AU  - Drakulić, Branko
AU  - Marinković, Aleksandar D.
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3431
AB  - Seven symmetrical 2,6-distyrylpyridines, phenyl-substituted with hydrogen-bond donors, hydrogenbond
acceptors, halogens and hydrophobic moieties were synthesized and their spectroscopic characterization
was done. Solvent effects on the absorption and fluorescence spectra were analyzed and quantified
using the Kamlet–Taft and Catalán approach. The obtained results were rationalized by comparison of
electrostatic potentials of the molecules in the ground and in excited state and by comparison of the frontier
molecular orbitals (HOMO and LUMO), derived from quantum-mechanical calculations (HF, DFT,
MP2). Analysis of the results revealed an important influence of non-specific (dispersive) interactions
on the solvatochromic behavior of the compounds. 1D and 2D NMR data, in silico obtained conformational
assembly of the compound, and the NMR analysis of molecular flexibility in solution (NAMFIS), were used
to estimate population of conformers and to deconvolute the UV-Vis spectrum of representative derivative;
inferring that the conformational assembly is more complex than was assumed in so far published
literature data for this class of compounds. Along with this, the emission spectra of the representative
compounds were decomposed by the Multivariate Curve Resolution analysis.
PB  - Amsterdam : Elsevier
T2  - Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
T1  - Solvatochromism of symmetrical 2,6-distyrylpyridines. An experimental and theoretical study
VL  - 135
SP  - 435
EP  - 446
DO  - 10.1016/j.saa.2014.07.023
ER  - 

@article{
author = "Markovic, Jelena M. and Trišović, Nemanja and Mutavdžić, Dragosav and Radotić, Ksenija and Juranić, Ivan and Drakulić, Branko and Marinković, Aleksandar D.",
year = "2015",
abstract = "Seven symmetrical 2,6-distyrylpyridines, phenyl-substituted with hydrogen-bond donors, hydrogenbond
acceptors, halogens and hydrophobic moieties were synthesized and their spectroscopic characterization
was done. Solvent effects on the absorption and fluorescence spectra were analyzed and quantified
using the Kamlet–Taft and Catalán approach. The obtained results were rationalized by comparison of
electrostatic potentials of the molecules in the ground and in excited state and by comparison of the frontier
molecular orbitals (HOMO and LUMO), derived from quantum-mechanical calculations (HF, DFT,
MP2). Analysis of the results revealed an important influence of non-specific (dispersive) interactions
on the solvatochromic behavior of the compounds. 1D and 2D NMR data, in silico obtained conformational
assembly of the compound, and the NMR analysis of molecular flexibility in solution (NAMFIS), were used
to estimate population of conformers and to deconvolute the UV-Vis spectrum of representative derivative;
inferring that the conformational assembly is more complex than was assumed in so far published
literature data for this class of compounds. Along with this, the emission spectra of the representative
compounds were decomposed by the Multivariate Curve Resolution analysis.",
publisher = "Amsterdam : Elsevier",
journal = "Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy",
title = "Solvatochromism of symmetrical 2,6-distyrylpyridines. An experimental and theoretical study",
volume = "135",
pages = "435-446",
doi = "10.1016/j.saa.2014.07.023"
}

Markovic, J. M., Trišović, N., Mutavdžić, D., Radotić, K., Juranić, I., Drakulić, B.,& Marinković, A. D.. (2015). Solvatochromism of symmetrical 2,6-distyrylpyridines. An experimental and theoretical study. in Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Amsterdam : Elsevier., 135, 435-446.
https://doi.org/10.1016/j.saa.2014.07.023

Markovic JM, Trišović N, Mutavdžić D, Radotić K, Juranić I, Drakulić B, Marinković AD. Solvatochromism of symmetrical 2,6-distyrylpyridines. An experimental and theoretical study. in Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 2015;135:435-446.
doi:10.1016/j.saa.2014.07.023 .

Markovic, Jelena M., Trišović, Nemanja, Mutavdžić, Dragosav, Radotić, Ksenija, Juranić, Ivan, Drakulić, Branko, Marinković, Aleksandar D., "Solvatochromism of symmetrical 2,6-distyrylpyridines. An experimental and theoretical study" in Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 135 (2015):435-446,
https://doi.org/10.1016/j.saa.2014.07.023 . .