TY  - JOUR
AU  - Papan Đaniš, Jelena
AU  - Periša, Jovana
AU  - Hribar Boštjančič, Patricija
AU  - Mihajlovski, Katarina
AU  - Lazić, Vesna M.
AU  - Dramićanin, Miroslav
AU  - Lisjak, Darja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10639
AB  - Colloidal stabilization of magnetic nanoparticles is one of the most important steps in the preparation of magnetic nanoparticles for potential biomedical applications. A special kind of magnetic nanoparticle are barium hexaferrite nanoplatelets (BSHF NPLs) with a hexagonal shape and a permanent magnetic moment. One strategy for the stabilization of BHF in aqueous media is to use coatings. In our research, we used an eco-friendly tannic acid, as a coating on BSHF NPLs. As-prepared BSHF NPLs coated with tannic acid were examined with transmission electron microscopy, infrared and UV-Vis spectroscopy, electro-kinetic measurements, and their room-temperature magnetic properties were measured. Stable colloids were tested in two biological complex media and antimicrobial properties of the material were examined. To enhance the antimicrobial properties of our material, we used tannic acid as a platform for the in-situ production of silver on BSHF NPLs. New hybrid material with silver also possesses magnetic properties and excellent antimicrobial activity against Escherichia coli and Staphylococcus aureus.
T2  - Colloids and Surfaces. B: Biointerfaces
T1  - Barium hexaferrite nanoplatelets with polyphenol coatings for versatile applications as a stable, magnetic, and antimicrobial colloid
VL  - 224
SP  - 113198
DO  - 10.1016/j.colsurfb.2023.113198
ER  - 

@article{
author = "Papan Đaniš, Jelena and Periša, Jovana and Hribar Boštjančič, Patricija and Mihajlovski, Katarina and Lazić, Vesna M. and Dramićanin, Miroslav and Lisjak, Darja",
year = "2023",
abstract = "Colloidal stabilization of magnetic nanoparticles is one of the most important steps in the preparation of magnetic nanoparticles for potential biomedical applications. A special kind of magnetic nanoparticle are barium hexaferrite nanoplatelets (BSHF NPLs) with a hexagonal shape and a permanent magnetic moment. One strategy for the stabilization of BHF in aqueous media is to use coatings. In our research, we used an eco-friendly tannic acid, as a coating on BSHF NPLs. As-prepared BSHF NPLs coated with tannic acid were examined with transmission electron microscopy, infrared and UV-Vis spectroscopy, electro-kinetic measurements, and their room-temperature magnetic properties were measured. Stable colloids were tested in two biological complex media and antimicrobial properties of the material were examined. To enhance the antimicrobial properties of our material, we used tannic acid as a platform for the in-situ production of silver on BSHF NPLs. New hybrid material with silver also possesses magnetic properties and excellent antimicrobial activity against Escherichia coli and Staphylococcus aureus.",
journal = "Colloids and Surfaces. B: Biointerfaces",
title = "Barium hexaferrite nanoplatelets with polyphenol coatings for versatile applications as a stable, magnetic, and antimicrobial colloid",
volume = "224",
pages = "113198",
doi = "10.1016/j.colsurfb.2023.113198"
}

Papan Đaniš, J., Periša, J., Hribar Boštjančič, P., Mihajlovski, K., Lazić, V. M., Dramićanin, M.,& Lisjak, D.. (2023). Barium hexaferrite nanoplatelets with polyphenol coatings for versatile applications as a stable, magnetic, and antimicrobial colloid. in Colloids and Surfaces. B: Biointerfaces, 224, 113198.
https://doi.org/10.1016/j.colsurfb.2023.113198

Papan Đaniš J, Periša J, Hribar Boštjančič P, Mihajlovski K, Lazić VM, Dramićanin M, Lisjak D. Barium hexaferrite nanoplatelets with polyphenol coatings for versatile applications as a stable, magnetic, and antimicrobial colloid. in Colloids and Surfaces. B: Biointerfaces. 2023;224:113198.
doi:10.1016/j.colsurfb.2023.113198 .

Papan Đaniš, Jelena, Periša, Jovana, Hribar Boštjančič, Patricija, Mihajlovski, Katarina, Lazić, Vesna M., Dramićanin, Miroslav, Lisjak, Darja, "Barium hexaferrite nanoplatelets with polyphenol coatings for versatile applications as a stable, magnetic, and antimicrobial colloid" in Colloids and Surfaces. B: Biointerfaces, 224 (2023):113198,
https://doi.org/10.1016/j.colsurfb.2023.113198 . .

TY  - JOUR
AU  - Lazić, Vesna M.
AU  - Pirković, Andrea
AU  - Sredojević, Dušan
AU  - Marković, Jelena P.
AU  - Papan, Jelena
AU  - Ahrenkiel, S. Phillip
AU  - Janković-Častvan, Ivona
AU  - Dekanski, Dragana
AU  - Jovanović Krivokuća, Milica
AU  - Nedeljković, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9897
AB  - The toxicity of hybrid nanoparticles, consisting of non-toxic components, zirconium dioxide nanoparticles (ZrO2 NPs), and caffeic acid (CA), was examined against four different cell lines (HTR-8 SV/Neo, JEG-3, JAR, and HeLa). Stable aqueous ZrO2 sol, synthesized by forced hydrolysis, consists of 3–4 nm in size primary particles organized in 30–60 nm in size snowflake-like particles, as determined by transmission electron microscopy and direct light scattering measurements. The surface modification of ZrO2 NPs with CA leads to the formation of an interfacial charge transfer (ICT) complex followed by the appearance of absorption in the visible spectral range. The spectroscopic observations are complemented with the density functional theory calculations using a cluster model. The ZrO2 NPs and CA are non-toxic against four different cell lines in investigated concentration range. Also, ZrO2 NPs promote the proliferation of HTR-8 SV/Neo, JAR, and HeLa cells. On the other hand, hybrid ZrO2/CA NPs induced a significant reduction of the viability of the JEG-3 cells (39 %) for the high concentration of components (1.6 mM ZrO2 and 0.4 mM CA).
T2  - Chemico-Biological Interactions
T1  - Surface-modified ZrO2 nanoparticles with caffeic acid: Characterization and in vitro evaluation of biosafety for placental cells
VL  - 347
SP  - 109618
DO  - 10.1016/j.cbi.2021.109618
ER  - 

@article{
author = "Lazić, Vesna M. and Pirković, Andrea and Sredojević, Dušan and Marković, Jelena P. and Papan, Jelena and Ahrenkiel, S. Phillip and Janković-Častvan, Ivona and Dekanski, Dragana and Jovanović Krivokuća, Milica and Nedeljković, Jovan",
year = "2021",
abstract = "The toxicity of hybrid nanoparticles, consisting of non-toxic components, zirconium dioxide nanoparticles (ZrO2 NPs), and caffeic acid (CA), was examined against four different cell lines (HTR-8 SV/Neo, JEG-3, JAR, and HeLa). Stable aqueous ZrO2 sol, synthesized by forced hydrolysis, consists of 3–4 nm in size primary particles organized in 30–60 nm in size snowflake-like particles, as determined by transmission electron microscopy and direct light scattering measurements. The surface modification of ZrO2 NPs with CA leads to the formation of an interfacial charge transfer (ICT) complex followed by the appearance of absorption in the visible spectral range. The spectroscopic observations are complemented with the density functional theory calculations using a cluster model. The ZrO2 NPs and CA are non-toxic against four different cell lines in investigated concentration range. Also, ZrO2 NPs promote the proliferation of HTR-8 SV/Neo, JAR, and HeLa cells. On the other hand, hybrid ZrO2/CA NPs induced a significant reduction of the viability of the JEG-3 cells (39 %) for the high concentration of components (1.6 mM ZrO2 and 0.4 mM CA).",
journal = "Chemico-Biological Interactions",
title = "Surface-modified ZrO2 nanoparticles with caffeic acid: Characterization and in vitro evaluation of biosafety for placental cells",
volume = "347",
pages = "109618",
doi = "10.1016/j.cbi.2021.109618"
}

Lazić, V. M., Pirković, A., Sredojević, D., Marković, J. P., Papan, J., Ahrenkiel, S. P., Janković-Častvan, I., Dekanski, D., Jovanović Krivokuća, M.,& Nedeljković, J.. (2021). Surface-modified ZrO2 nanoparticles with caffeic acid: Characterization and in vitro evaluation of biosafety for placental cells. in Chemico-Biological Interactions, 347, 109618.
https://doi.org/10.1016/j.cbi.2021.109618

Lazić VM, Pirković A, Sredojević D, Marković JP, Papan J, Ahrenkiel SP, Janković-Častvan I, Dekanski D, Jovanović Krivokuća M, Nedeljković J. Surface-modified ZrO2 nanoparticles with caffeic acid: Characterization and in vitro evaluation of biosafety for placental cells. in Chemico-Biological Interactions. 2021;347:109618.
doi:10.1016/j.cbi.2021.109618 .

Lazić, Vesna M., Pirković, Andrea, Sredojević, Dušan, Marković, Jelena P., Papan, Jelena, Ahrenkiel, S. Phillip, Janković-Častvan, Ivona, Dekanski, Dragana, Jovanović Krivokuća, Milica, Nedeljković, Jovan, "Surface-modified ZrO2 nanoparticles with caffeic acid: Characterization and in vitro evaluation of biosafety for placental cells" in Chemico-Biological Interactions, 347 (2021):109618,
https://doi.org/10.1016/j.cbi.2021.109618 . .

TY  - JOUR
AU  - Ivetić, Tamara B.
AU  - Xia, Yang
AU  - Benzine, Omar
AU  - Petrović, Jelena
AU  - Papan, Jelena
AU  - Lukić-Petrović, Svetlana R.
AU  - Litvinchuk, Alexander P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9691
AB  - Resultsof Electrochemical Impedance Spectroscopy (EIS) are reported for lithium-niobium-titanium-oxide (LNTO) ceramics synthesized by a solid-state reaction method with two functional additives (MoO3 or ZnO) in the temperature range 323 K - 573 K and frequencies between 10−1 Hz and 107 Hz. Scanning electron microscopy (SEM) reveals a textured morphology of rod and plate-like particles that are typical for M-phase LNTO materials, while X-ray diffraction (XRD) analysis confirms the formation of an M-phase member compound with an approximate structure of Li7Nb3Ti5O21. Complex impedance analysis indicates that its overall electrical resistivity behavior depends mostly on the grain boundary processes. EIS analysis shows a negative temperature coefficient of resistance behavior (NTCR) in a defined temperature range in two LNTOs and thermal activation of the conduction mechanisms. The low dielectric constants of 5.5 and 12.1 at 1 MHz were found for the first and second LNTOs, respectively. Complimentary Raman spectroscopic measurements, despite very large crystallographic unit cell of LNTO, reveal only a small number of lines, which is the consequence of a “molecular” nature of materials.
T2  - Ceramics International
T1  - Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology
VL  - 47
IS  - 4
SP  - 4944
EP  - 4953
DO  - 10.1016/j.ceramint.2020.10.070
ER  - 

@article{
author = "Ivetić, Tamara B. and Xia, Yang and Benzine, Omar and Petrović, Jelena and Papan, Jelena and Lukić-Petrović, Svetlana R. and Litvinchuk, Alexander P.",
year = "2021",
abstract = "Resultsof Electrochemical Impedance Spectroscopy (EIS) are reported for lithium-niobium-titanium-oxide (LNTO) ceramics synthesized by a solid-state reaction method with two functional additives (MoO3 or ZnO) in the temperature range 323 K - 573 K and frequencies between 10−1 Hz and 107 Hz. Scanning electron microscopy (SEM) reveals a textured morphology of rod and plate-like particles that are typical for M-phase LNTO materials, while X-ray diffraction (XRD) analysis confirms the formation of an M-phase member compound with an approximate structure of Li7Nb3Ti5O21. Complex impedance analysis indicates that its overall electrical resistivity behavior depends mostly on the grain boundary processes. EIS analysis shows a negative temperature coefficient of resistance behavior (NTCR) in a defined temperature range in two LNTOs and thermal activation of the conduction mechanisms. The low dielectric constants of 5.5 and 12.1 at 1 MHz were found for the first and second LNTOs, respectively. Complimentary Raman spectroscopic measurements, despite very large crystallographic unit cell of LNTO, reveal only a small number of lines, which is the consequence of a “molecular” nature of materials.",
journal = "Ceramics International",
title = "Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology",
volume = "47",
number = "4",
pages = "4944-4953",
doi = "10.1016/j.ceramint.2020.10.070"
}

Ivetić, T. B., Xia, Y., Benzine, O., Petrović, J., Papan, J., Lukić-Petrović, S. R.,& Litvinchuk, A. P.. (2021). Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology. in Ceramics International, 47(4), 4944-4953.
https://doi.org/10.1016/j.ceramint.2020.10.070

Ivetić TB, Xia Y, Benzine O, Petrović J, Papan J, Lukić-Petrović SR, Litvinchuk AP. Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology. in Ceramics International. 2021;47(4):4944-4953.
doi:10.1016/j.ceramint.2020.10.070 .

Ivetić, Tamara B., Xia, Yang, Benzine, Omar, Petrović, Jelena, Papan, Jelena, Lukić-Petrović, Svetlana R., Litvinchuk, Alexander P., "Structure, electrochemical impedance and Raman spectroscopy of lithium-niobium-titanium-oxide ceramics for LTCC technology" in Ceramics International, 47, no. 4 (2021):4944-4953,
https://doi.org/10.1016/j.ceramint.2020.10.070 . .

TY  - JOUR
AU  - Papan, Jelena
AU  - Hribar Boštjančič, Patricija
AU  - Mertelj, Alenka
AU  - Lisjak, Darja
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9982
AB  - Janus particles, which have two surfaces exhibiting different properties, are promising candidates for various applications. For example, magneto-optic Janus particles could be used for in-vivo cancer imaging, drug delivery, and photothermal therapy. The preparation of such materials on a relatively large scale is challenging, especially if the Janus structure consists of a hard magnetic material like barium hexaferrite nanoplatelets. The focus of this study was to adopt the known Pickering emulsion, i.e., Granick’s method, for the preparation of barium-hexaferrite/gold Janus nanoplatelets. The wax-in-water Pickering emulsions were stabilized with a combination of cetyltrimethyl ammonium bromide and barium hexaferrite nanoplatelets at 80 °C. Colloidosomes of solidified wax covered with the barium hexaferrite nanoplatelets formed after cooling the Pickering emulsions to room temperature. The formation and microstructure of the colloidosomes were thoroughly studied by optical and scanning electron microscopy. The process was optimized by various processing parameters, such as the composition of the emulsion system and the speed and time of emulsification. The colloidosomes with the highest surface coverage were used to prepare the Janus nanoplatelets by decorating the exposed surfaces of the barium hexaferrite nanoplatelets with gold nanospheres using mercaptan chemistry. Transmission electron microscopy was used to inspect the barium-hexaferrite/gold Janus nanoplatelets that were prepared for the first time.
T2  - Nanomaterials
T1  - Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method
VL  - 11
IS  - 11
SP  - 2797
DO  - 10.3390/nano11112797
ER  - 

@article{
author = "Papan, Jelena and Hribar Boštjančič, Patricija and Mertelj, Alenka and Lisjak, Darja",
year = "2021",
abstract = "Janus particles, which have two surfaces exhibiting different properties, are promising candidates for various applications. For example, magneto-optic Janus particles could be used for in-vivo cancer imaging, drug delivery, and photothermal therapy. The preparation of such materials on a relatively large scale is challenging, especially if the Janus structure consists of a hard magnetic material like barium hexaferrite nanoplatelets. The focus of this study was to adopt the known Pickering emulsion, i.e., Granick’s method, for the preparation of barium-hexaferrite/gold Janus nanoplatelets. The wax-in-water Pickering emulsions were stabilized with a combination of cetyltrimethyl ammonium bromide and barium hexaferrite nanoplatelets at 80 °C. Colloidosomes of solidified wax covered with the barium hexaferrite nanoplatelets formed after cooling the Pickering emulsions to room temperature. The formation and microstructure of the colloidosomes were thoroughly studied by optical and scanning electron microscopy. The process was optimized by various processing parameters, such as the composition of the emulsion system and the speed and time of emulsification. The colloidosomes with the highest surface coverage were used to prepare the Janus nanoplatelets by decorating the exposed surfaces of the barium hexaferrite nanoplatelets with gold nanospheres using mercaptan chemistry. Transmission electron microscopy was used to inspect the barium-hexaferrite/gold Janus nanoplatelets that were prepared for the first time.",
journal = "Nanomaterials",
title = "Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method",
volume = "11",
number = "11",
pages = "2797",
doi = "10.3390/nano11112797"
}

Papan, J., Hribar Boštjančič, P., Mertelj, A.,& Lisjak, D.. (2021). Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method. in Nanomaterials, 11(11), 2797.
https://doi.org/10.3390/nano11112797

Papan J, Hribar Boštjančič P, Mertelj A, Lisjak D. Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method. in Nanomaterials. 2021;11(11):2797.
doi:10.3390/nano11112797 .

Papan, Jelena, Hribar Boštjančič, Patricija, Mertelj, Alenka, Lisjak, Darja, "Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method" in Nanomaterials, 11, no. 11 (2021):2797,
https://doi.org/10.3390/nano11112797 . .

TY  - JOUR
AU  - Zarubica, Aleksandra R.
AU  - Ljupković, Radomir
AU  - Papan, Jelena
AU  - Vukoje, Ivana D.
AU  - Porobić, Slavica
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9003
AB  - A visible-light-responsive hybrid material was prepared by surface-modification of γ-Al2O3, an insulator with a bandgap of about 8.7 eV, with 5-aminosalicylic acid (5-ASA), leading to the formation of an interfacial charge transfer (ICT) complex. The microstructural characterization of pristine γ-Al2O3 includes X-ray diffraction analysis, transmission electron microscopy, and nitrogen adsorption-desorption isotherms. The pristine γ-Al2O3 powder consists of agglomerated rod-like nanoparticles ((2-3) × (15-20) nm, diameter × length) with the large specific surface area (~420 m2/g). An enormous absorption red-shift is observed upon the formation of the ICT complex. The absorption onset of the inorganic-organic hybrid was found to be at 730 nm by diffuse reflection spectroscopy. The photocatalytic performance of prepared samples was thoroughly tested using the decolorization of the organic dye crystal violet (CV) under illumination in different spectral regions and different light intensities. Excitation with UV light leads to complete decolorization of CV, while the degradation kinetics are impeded when a visible light source is used. Also, the increase of UV light intensity induced significantly faster degradation kinetics of CV, while the degradation rates of CV are quite insensitive to the increase of visible light intensity.
T2  - Optical Materials
T1  - Visible-light-responsive Al2O3 powder: Photocatalytic study
VL  - 106
SP  - 110013
DO  - 10.1016/j.optmat.2020.110013
ER  - 

@article{
author = "Zarubica, Aleksandra R. and Ljupković, Radomir and Papan, Jelena and Vukoje, Ivana D. and Porobić, Slavica and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2020",
abstract = "A visible-light-responsive hybrid material was prepared by surface-modification of γ-Al2O3, an insulator with a bandgap of about 8.7 eV, with 5-aminosalicylic acid (5-ASA), leading to the formation of an interfacial charge transfer (ICT) complex. The microstructural characterization of pristine γ-Al2O3 includes X-ray diffraction analysis, transmission electron microscopy, and nitrogen adsorption-desorption isotherms. The pristine γ-Al2O3 powder consists of agglomerated rod-like nanoparticles ((2-3) × (15-20) nm, diameter × length) with the large specific surface area (~420 m2/g). An enormous absorption red-shift is observed upon the formation of the ICT complex. The absorption onset of the inorganic-organic hybrid was found to be at 730 nm by diffuse reflection spectroscopy. The photocatalytic performance of prepared samples was thoroughly tested using the decolorization of the organic dye crystal violet (CV) under illumination in different spectral regions and different light intensities. Excitation with UV light leads to complete decolorization of CV, while the degradation kinetics are impeded when a visible light source is used. Also, the increase of UV light intensity induced significantly faster degradation kinetics of CV, while the degradation rates of CV are quite insensitive to the increase of visible light intensity.",
journal = "Optical Materials",
title = "Visible-light-responsive Al2O3 powder: Photocatalytic study",
volume = "106",
pages = "110013",
doi = "10.1016/j.optmat.2020.110013"
}

Zarubica, A. R., Ljupković, R., Papan, J., Vukoje, I. D., Porobić, S., Ahrenkiel, S. P.,& Nedeljković, J.. (2020). Visible-light-responsive Al2O3 powder: Photocatalytic study. in Optical Materials, 106, 110013.
https://doi.org/10.1016/j.optmat.2020.110013

Zarubica AR, Ljupković R, Papan J, Vukoje ID, Porobić S, Ahrenkiel SP, Nedeljković J. Visible-light-responsive Al2O3 powder: Photocatalytic study. in Optical Materials. 2020;106:110013.
doi:10.1016/j.optmat.2020.110013 .

Zarubica, Aleksandra R., Ljupković, Radomir, Papan, Jelena, Vukoje, Ivana D., Porobić, Slavica, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Visible-light-responsive Al2O3 powder: Photocatalytic study" in Optical Materials, 106 (2020):110013,
https://doi.org/10.1016/j.optmat.2020.110013 . .

TY  - JOUR
AU  - Samaržija-Jovanović, Suzana
AU  - Jovanović, Vojislav
AU  - Petković, Branka
AU  - Jovanović, Tijana
AU  - Marković, Gordana
AU  - Porobić, Slavica
AU  - Papan, Jelena
AU  - Marinović-Cincović, Milena
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9012
AB  - Urea-formaldehyde resin (F/U ratio of 0.8)/thermally activated montmorillonite (UF/Delta TK10) nanocomposite was synthesized. The hydrolytical, thermal, and UV radiation stability of UF/Delta TK10 nanocomposites are determined. UF hybrid nanocomposites have been irradiated with UV light with a wavelength of 254 nm and 366 nm, and after that, their radiation stability was evaluated. The free formaldehyde (FA) percentage in all prepared samples was determined. The sample was characterized by using X-ray diffraction analysis (XRD), nonisothermal thermogravimetric analysis (TGA), differential thermal analysis (DTA), and differential thermal gravimetry (DTG), with infrared (FTIR) spectroscopy. Crosslinked UF/Delta TK10 nanocomposite shows the highest resistance to acid hydrolysis after UV irradiation at a wavelength of 254 nm. The values for T-5% are identical for the unirradiated and UV irradiated (wavelength of 366 nm) UF/Delta TK10 nanocomposite. It can be concluded that this sample is thermally most stable and shows good resistance to UV irradiation.
T2  - Polymer Composites
T1  - Hydrolytic, thermal, and UV stability of urea‐formaldehyde resin/thermally activated montmorillonite nanocomposites
VL  - 41
IS  - 9
SP  - 3575
EP  - 3584
DO  - 10.1002/pc.25644
ER  - 

@article{
author = "Samaržija-Jovanović, Suzana and Jovanović, Vojislav and Petković, Branka and Jovanović, Tijana and Marković, Gordana and Porobić, Slavica and Papan, Jelena and Marinović-Cincović, Milena",
year = "2020",
abstract = "Urea-formaldehyde resin (F/U ratio of 0.8)/thermally activated montmorillonite (UF/Delta TK10) nanocomposite was synthesized. The hydrolytical, thermal, and UV radiation stability of UF/Delta TK10 nanocomposites are determined. UF hybrid nanocomposites have been irradiated with UV light with a wavelength of 254 nm and 366 nm, and after that, their radiation stability was evaluated. The free formaldehyde (FA) percentage in all prepared samples was determined. The sample was characterized by using X-ray diffraction analysis (XRD), nonisothermal thermogravimetric analysis (TGA), differential thermal analysis (DTA), and differential thermal gravimetry (DTG), with infrared (FTIR) spectroscopy. Crosslinked UF/Delta TK10 nanocomposite shows the highest resistance to acid hydrolysis after UV irradiation at a wavelength of 254 nm. The values for T-5% are identical for the unirradiated and UV irradiated (wavelength of 366 nm) UF/Delta TK10 nanocomposite. It can be concluded that this sample is thermally most stable and shows good resistance to UV irradiation.",
journal = "Polymer Composites",
title = "Hydrolytic, thermal, and UV stability of urea‐formaldehyde resin/thermally activated montmorillonite nanocomposites",
volume = "41",
number = "9",
pages = "3575-3584",
doi = "10.1002/pc.25644"
}

Samaržija-Jovanović, S., Jovanović, V., Petković, B., Jovanović, T., Marković, G., Porobić, S., Papan, J.,& Marinović-Cincović, M.. (2020). Hydrolytic, thermal, and UV stability of urea‐formaldehyde resin/thermally activated montmorillonite nanocomposites. in Polymer Composites, 41(9), 3575-3584.
https://doi.org/10.1002/pc.25644

Samaržija-Jovanović S, Jovanović V, Petković B, Jovanović T, Marković G, Porobić S, Papan J, Marinović-Cincović M. Hydrolytic, thermal, and UV stability of urea‐formaldehyde resin/thermally activated montmorillonite nanocomposites. in Polymer Composites. 2020;41(9):3575-3584.
doi:10.1002/pc.25644 .

Samaržija-Jovanović, Suzana, Jovanović, Vojislav, Petković, Branka, Jovanović, Tijana, Marković, Gordana, Porobić, Slavica, Papan, Jelena, Marinović-Cincović, Milena, "Hydrolytic, thermal, and UV stability of urea‐formaldehyde resin/thermally activated montmorillonite nanocomposites" in Polymer Composites, 41, no. 9 (2020):3575-3584,
https://doi.org/10.1002/pc.25644 . .

TY  - JOUR
AU  - Jovanović, Svetlana P.
AU  - Syrgiannis, Zois
AU  - Budimir, Milica
AU  - Milivojević, Dušan
AU  - Jovanović, Dragana J.
AU  - Pavlović, Vladimir B.
AU  - Papan, Jelena
AU  - Bartenwerfer, Malte
AU  - Mojsin, Marija
AU  - Stevanović, Milena J.
AU  - Todorović-Marković, Biljana
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8672
AB  - Due to their low cost and possible green synthesis, high stability and resistance to photobleaching, graphene quantum dots (GQDs) can be considered as one of the class of carbon nanomaterials which may have great potential as an agent for photosensitized oxygen activation. In such a way, GQDs can be used as a theranostic agent in photodynamic therapy. In this work pristine GQDs, GQDs irradiated with gamma rays and GQDs doped with N and N, S atoms are produced using a simple, green approach. By using different techniques (AFM, HR-TEM, SEM-EDS, FTIR, XRD, PL and UV–Vis) we investigated structural and optical properties of the new types of GQDs. We showed that GQDs functionalized with thiourea (GQDs-TU) completely lost the ability to produce singlet oxygen (1O2) upon photoexcitation while functionalization with urea (GQDs-U) improves the capability of GQDs to produce 1O2 upon the same conditions. Thus, presented GQDs modification with urea seems like a promising approach for the production of the efficient photosensitizer. On the opposite, GQDs-TU are efficient [rad]OH quencher. Due to high singlet oxygen production and low cytotoxicity below 100 μg/mL against HeLa cells, GQDs-U is a good candidate as an agent in photodynamic therapy at this concentration. © 2019
T2  - Materials Science and Engineering: C
T1  - Graphene quantum dots as singlet oxygen producer or radical quencher - The matter of functionalization with urea/thiourea
VL  - 109
SP  - 110539
DO  - 10.1016/j.msec.2019.110539
ER  - 

@article{
author = "Jovanović, Svetlana P. and Syrgiannis, Zois and Budimir, Milica and Milivojević, Dušan and Jovanović, Dragana J. and Pavlović, Vladimir B. and Papan, Jelena and Bartenwerfer, Malte and Mojsin, Marija and Stevanović, Milena J. and Todorović-Marković, Biljana",
year = "2020",
abstract = "Due to their low cost and possible green synthesis, high stability and resistance to photobleaching, graphene quantum dots (GQDs) can be considered as one of the class of carbon nanomaterials which may have great potential as an agent for photosensitized oxygen activation. In such a way, GQDs can be used as a theranostic agent in photodynamic therapy. In this work pristine GQDs, GQDs irradiated with gamma rays and GQDs doped with N and N, S atoms are produced using a simple, green approach. By using different techniques (AFM, HR-TEM, SEM-EDS, FTIR, XRD, PL and UV–Vis) we investigated structural and optical properties of the new types of GQDs. We showed that GQDs functionalized with thiourea (GQDs-TU) completely lost the ability to produce singlet oxygen (1O2) upon photoexcitation while functionalization with urea (GQDs-U) improves the capability of GQDs to produce 1O2 upon the same conditions. Thus, presented GQDs modification with urea seems like a promising approach for the production of the efficient photosensitizer. On the opposite, GQDs-TU are efficient [rad]OH quencher. Due to high singlet oxygen production and low cytotoxicity below 100 μg/mL against HeLa cells, GQDs-U is a good candidate as an agent in photodynamic therapy at this concentration. © 2019",
journal = "Materials Science and Engineering: C",
title = "Graphene quantum dots as singlet oxygen producer or radical quencher - The matter of functionalization with urea/thiourea",
volume = "109",
pages = "110539",
doi = "10.1016/j.msec.2019.110539"
}

Jovanović, S. P., Syrgiannis, Z., Budimir, M., Milivojević, D., Jovanović, D. J., Pavlović, V. B., Papan, J., Bartenwerfer, M., Mojsin, M., Stevanović, M. J.,& Todorović-Marković, B.. (2020). Graphene quantum dots as singlet oxygen producer or radical quencher - The matter of functionalization with urea/thiourea. in Materials Science and Engineering: C, 109, 110539.
https://doi.org/10.1016/j.msec.2019.110539

Jovanović SP, Syrgiannis Z, Budimir M, Milivojević D, Jovanović DJ, Pavlović VB, Papan J, Bartenwerfer M, Mojsin M, Stevanović MJ, Todorović-Marković B. Graphene quantum dots as singlet oxygen producer or radical quencher - The matter of functionalization with urea/thiourea. in Materials Science and Engineering: C. 2020;109:110539.
doi:10.1016/j.msec.2019.110539 .

Jovanović, Svetlana P., Syrgiannis, Zois, Budimir, Milica, Milivojević, Dušan, Jovanović, Dragana J., Pavlović, Vladimir B., Papan, Jelena, Bartenwerfer, Malte, Mojsin, Marija, Stevanović, Milena J., Todorović-Marković, Biljana, "Graphene quantum dots as singlet oxygen producer or radical quencher - The matter of functionalization with urea/thiourea" in Materials Science and Engineering: C, 109 (2020):110539,
https://doi.org/10.1016/j.msec.2019.110539 . .

TY  - JOUR
AU  - Barbieriková, Zuzana
AU  - Lončarević, Davor
AU  - Papan, Jelena
AU  - Vukoje, Ivana D.
AU  - Stoiljković, Milovan
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9756
AB  - The efficiency of titanate-nanotubes-based photocatalysts towards hydrogen production was studied in the presence of the sacrificial agent, 2-propanol. The highest hydrogen production rate (~120 lmol h 1 g 1 ) was observed over surface-modified titanate nanotubes by 5-amino salicylic acid decorated with nanometer-sized silver nanoparticles. The X-ray diffraction analysis, transmission electron microscopy, nitrogen adsorption–desorption isotherms, and diffuse reflection spectroscopy were applied to characterize the prepared photocatalytic materials. The better photocatalytic performance of inorganic–organic hybrid materials in comparison to the pristine titanate nanotubes is a consequence of their improved light-harvesting ability due to the formation of interfacial charge transfer (ICT) complex, as well as the presence of metallic silver nanoparticles that suppress the recombination of photo-generated charge carriers. The spin trapping EPR experiments under irradiation of prepared photocatalysts with either UV or visible light were used to monitor the appearance of hydroxyl radicals and superoxide radical anions. The generation of superoxide radical anions under visible light irradiation was detected for hybrid materials, but not for the pristine titanate nanotubes. These results are a consequence of enhanced promotion ofelectrons to the conduction band due to extended absorption in visible spectral range in hybrids and support the higher efficiency of hydrogen generation observed for surface-modified titanate nanotubes by 5-amino salicylic acid decorated with silver nanoparticles.
T2  - Advanced Powder Technology
T1  - Photocatalytic hydrogen evolution over surface-modified titanate nanotubes by 5-aminosalicylic acid decorated with silver nanoparticles
VL  - 31
IS  - 12
SP  - 4683
EP  - 4690
DO  - 10.1016/j.apt.2020.11.001
ER  - 

@article{
author = "Barbieriková, Zuzana and Lončarević, Davor and Papan, Jelena and Vukoje, Ivana D. and Stoiljković, Milovan and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2020",
abstract = "The efficiency of titanate-nanotubes-based photocatalysts towards hydrogen production was studied in the presence of the sacrificial agent, 2-propanol. The highest hydrogen production rate (~120 lmol h 1 g 1 ) was observed over surface-modified titanate nanotubes by 5-amino salicylic acid decorated with nanometer-sized silver nanoparticles. The X-ray diffraction analysis, transmission electron microscopy, nitrogen adsorption–desorption isotherms, and diffuse reflection spectroscopy were applied to characterize the prepared photocatalytic materials. The better photocatalytic performance of inorganic–organic hybrid materials in comparison to the pristine titanate nanotubes is a consequence of their improved light-harvesting ability due to the formation of interfacial charge transfer (ICT) complex, as well as the presence of metallic silver nanoparticles that suppress the recombination of photo-generated charge carriers. The spin trapping EPR experiments under irradiation of prepared photocatalysts with either UV or visible light were used to monitor the appearance of hydroxyl radicals and superoxide radical anions. The generation of superoxide radical anions under visible light irradiation was detected for hybrid materials, but not for the pristine titanate nanotubes. These results are a consequence of enhanced promotion ofelectrons to the conduction band due to extended absorption in visible spectral range in hybrids and support the higher efficiency of hydrogen generation observed for surface-modified titanate nanotubes by 5-amino salicylic acid decorated with silver nanoparticles.",
journal = "Advanced Powder Technology",
title = "Photocatalytic hydrogen evolution over surface-modified titanate nanotubes by 5-aminosalicylic acid decorated with silver nanoparticles",
volume = "31",
number = "12",
pages = "4683-4690",
doi = "10.1016/j.apt.2020.11.001"
}

Barbieriková, Z., Lončarević, D., Papan, J., Vukoje, I. D., Stoiljković, M., Ahrenkiel, S. P.,& Nedeljković, J.. (2020). Photocatalytic hydrogen evolution over surface-modified titanate nanotubes by 5-aminosalicylic acid decorated with silver nanoparticles. in Advanced Powder Technology, 31(12), 4683-4690.
https://doi.org/10.1016/j.apt.2020.11.001

Barbieriková Z, Lončarević D, Papan J, Vukoje ID, Stoiljković M, Ahrenkiel SP, Nedeljković J. Photocatalytic hydrogen evolution over surface-modified titanate nanotubes by 5-aminosalicylic acid decorated with silver nanoparticles. in Advanced Powder Technology. 2020;31(12):4683-4690.
doi:10.1016/j.apt.2020.11.001 .

Barbieriková, Zuzana, Lončarević, Davor, Papan, Jelena, Vukoje, Ivana D., Stoiljković, Milovan, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Photocatalytic hydrogen evolution over surface-modified titanate nanotubes by 5-aminosalicylic acid decorated with silver nanoparticles" in Advanced Powder Technology, 31, no. 12 (2020):4683-4690,
https://doi.org/10.1016/j.apt.2020.11.001 . .

TY  - JOUR
AU  - Miljković, Miona G.
AU  - Lazić, Vesna M.
AU  - Davidović, Slađana Z.
AU  - Milivojević, Ana
AU  - Papan, Jelena
AU  - Fernandes, Margarida M.
AU  - Lanceros-Mendez, Senentxu
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8902
AB  - The aim of this study was the development of a non-toxic, biosynthetic antimicrobial agent which selectively acts on only one type of microorganism, and preserves the microbiota. Antimicrobial performance of biosynthesized silver nanoparticles (Ag NPs) by horsetail (Equisetum arvense L.) extract was examined against Gram-negative bacteria Escherichia coli and Gram-positive bacteria Staphylococcus aureus, as well as yeasts Candida albicans and Saccharomyces boulardii. Also, the cytotoxicity of Ag NPs was examined toward pre-osteoblast cells. The synthetic conditions—concentration of extract, temperature, and pH—were optimized to prepare silver colloids with different particle size distributions and long-term stability. The obtained samples were characterized using transmission electron microscopy, X-ray diffraction analysis, and absorption spectroscopy. The smaller-sized Ag NPs (~ 10–20 nm), prepared at a lower temperature (20 °C), showed better antimicrobial performance against E. coli compared to larger ones (~ 40–60 nm), prepared at high temperature (100 °C). On the other hand, both samples did not display any toxic action against bacteria S. aureus, or yeasts C. albicans and S. boulardii. Non-cytotoxic behavior of Ag NPs toward pre-osteoblast cells was observed for the concentrations of silver ≤ 2.25 and ≤ 4.5 mg L−1 for 10–20 and 40–60 nm-sized Ag NPs, respectively. Biosynthesized Ag NPs by horsetail extract display selective toxic action against E. coli at the ecologically acceptable concentration level. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.
T2  - Journal of Inorganic and Organometallic Polymers and Materials
T1  - Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli
VL  - 30
IS  - 7
SP  - 2598
EP  - 2607
DO  - 10.1007/s10904-019-01402-x
ER  - 

@article{
author = "Miljković, Miona G. and Lazić, Vesna M. and Davidović, Slađana Z. and Milivojević, Ana and Papan, Jelena and Fernandes, Margarida M. and Lanceros-Mendez, Senentxu and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2020",
abstract = "The aim of this study was the development of a non-toxic, biosynthetic antimicrobial agent which selectively acts on only one type of microorganism, and preserves the microbiota. Antimicrobial performance of biosynthesized silver nanoparticles (Ag NPs) by horsetail (Equisetum arvense L.) extract was examined against Gram-negative bacteria Escherichia coli and Gram-positive bacteria Staphylococcus aureus, as well as yeasts Candida albicans and Saccharomyces boulardii. Also, the cytotoxicity of Ag NPs was examined toward pre-osteoblast cells. The synthetic conditions—concentration of extract, temperature, and pH—were optimized to prepare silver colloids with different particle size distributions and long-term stability. The obtained samples were characterized using transmission electron microscopy, X-ray diffraction analysis, and absorption spectroscopy. The smaller-sized Ag NPs (~ 10–20 nm), prepared at a lower temperature (20 °C), showed better antimicrobial performance against E. coli compared to larger ones (~ 40–60 nm), prepared at high temperature (100 °C). On the other hand, both samples did not display any toxic action against bacteria S. aureus, or yeasts C. albicans and S. boulardii. Non-cytotoxic behavior of Ag NPs toward pre-osteoblast cells was observed for the concentrations of silver ≤ 2.25 and ≤ 4.5 mg L−1 for 10–20 and 40–60 nm-sized Ag NPs, respectively. Biosynthesized Ag NPs by horsetail extract display selective toxic action against E. coli at the ecologically acceptable concentration level. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.",
journal = "Journal of Inorganic and Organometallic Polymers and Materials",
title = "Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli",
volume = "30",
number = "7",
pages = "2598-2607",
doi = "10.1007/s10904-019-01402-x"
}

Miljković, M. G., Lazić, V. M., Davidović, S. Z., Milivojević, A., Papan, J., Fernandes, M. M., Lanceros-Mendez, S., Ahrenkiel, S. P.,& Nedeljković, J.. (2020). Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli. in Journal of Inorganic and Organometallic Polymers and Materials, 30(7), 2598-2607.
https://doi.org/10.1007/s10904-019-01402-x

Miljković MG, Lazić VM, Davidović SZ, Milivojević A, Papan J, Fernandes MM, Lanceros-Mendez S, Ahrenkiel SP, Nedeljković J. Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli. in Journal of Inorganic and Organometallic Polymers and Materials. 2020;30(7):2598-2607.
doi:10.1007/s10904-019-01402-x .

Miljković, Miona G., Lazić, Vesna M., Davidović, Slađana Z., Milivojević, Ana, Papan, Jelena, Fernandes, Margarida M., Lanceros-Mendez, Senentxu, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli" in Journal of Inorganic and Organometallic Polymers and Materials, 30, no. 7 (2020):2598-2607,
https://doi.org/10.1007/s10904-019-01402-x . .

TY  - JOUR
AU  - Papan, Jelena
AU  - Ristić, Zoran
AU  - Ćirić, Aleksandar
AU  - Kuzman, Sanja
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8901
AB  - The red phosphor Y2Mo4O15:Eu3+ calcined at different temperatures is obtained by a solid-state method, and is investigated in this article. Usage of solid-state method with the combination of five different calcination temperatures (500, 550, 600, 650, and 700 °C) leads to the formation of pure monoclinic phase in all samples apart from the one calcined at the lowest temperature. Crystallite size obtained by Rietveld refinement is in the range of 38–55 nm. Scanning electron microscopy analysis confirms the presence of agglomerates. Luminescence emission spectra and emission decay curves are measured for all pure samples, and parameters derived from these measurements are used for Judd–Ofelt analysis. International commission on illumination (CIE) chromaticity diagram confirms the presence of pure red emission and high quantum efficiency. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
T2  - Physica Status Solidi. B: Basic Research
T1  - Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures
VL  - 257
IS  - 8
SP  - 1900454
DO  - 10.1002/pssb.201900454
ER  - 

@article{
author = "Papan, Jelena and Ristić, Zoran and Ćirić, Aleksandar and Kuzman, Sanja and Dramićanin, Miroslav",
year = "2020",
abstract = "The red phosphor Y2Mo4O15:Eu3+ calcined at different temperatures is obtained by a solid-state method, and is investigated in this article. Usage of solid-state method with the combination of five different calcination temperatures (500, 550, 600, 650, and 700 °C) leads to the formation of pure monoclinic phase in all samples apart from the one calcined at the lowest temperature. Crystallite size obtained by Rietveld refinement is in the range of 38–55 nm. Scanning electron microscopy analysis confirms the presence of agglomerates. Luminescence emission spectra and emission decay curves are measured for all pure samples, and parameters derived from these measurements are used for Judd–Ofelt analysis. International commission on illumination (CIE) chromaticity diagram confirms the presence of pure red emission and high quantum efficiency. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
journal = "Physica Status Solidi. B: Basic Research",
title = "Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures",
volume = "257",
number = "8",
pages = "1900454",
doi = "10.1002/pssb.201900454"
}

Papan, J., Ristić, Z., Ćirić, A., Kuzman, S.,& Dramićanin, M.. (2020). Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures. in Physica Status Solidi. B: Basic Research, 257(8), 1900454.
https://doi.org/10.1002/pssb.201900454

Papan J, Ristić Z, Ćirić A, Kuzman S, Dramićanin M. Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures. in Physica Status Solidi. B: Basic Research. 2020;257(8):1900454.
doi:10.1002/pssb.201900454 .

Papan, Jelena, Ristić, Zoran, Ćirić, Aleksandar, Kuzman, Sanja, Dramićanin, Miroslav, "Structural and Luminescent Properties of Y2Mo4O15:Eu3+ Red Phosphor Calcined at Different Temperatures" in Physica Status Solidi. B: Basic Research, 257, no. 8 (2020):1900454,
https://doi.org/10.1002/pssb.201900454 . .

TY  - JOUR
AU  - Dramićanin, Miroslav
AU  - Milićević, Bojana R.
AU  - Đorđević, Vesna R.
AU  - Ristić, Zoran
AU  - Zhou, Jianbang
AU  - Milivojević, Dušan
AU  - Papan, Jelena
AU  - Brik, Mikhail G.
AU  - Ma, Chong‐Geng
AU  - Srivastava, Alok M
AU  - Wu, Mingmei
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8360
AB  - Luminescence of monoclinic lithium metatitanate (Li2TiO3) powders activated with different quantities of Mn4+ is studied in detail. Its strong deep-red emission arising from the Mn4+ 2Eg → 4A2g spin forbidden transition is centered at around 688 nm and is suitable for luminescence thermometry. Structural and electron paramagnetic resonance analyses show that Mn4+ ions are equally distributed in two almost identical Ti4+ sites in which they are octahedrally coordinated by six oxygen ions. Calculations based on the exchange charge model of the crystal field provided values of Racah parameters (B=760 cm−1, C= 2993 cm−1), crystal-field splitting Dq= 2043 cm−1, and the nephelauxetic parameter β1=0.9775. The maximal quantum efficiency of 24.1% at room temperature is found for 0.126% Mn4+ concentration. Temperature quenching of emission occurs by a cross-over via 4T2 excited state of the Mn4+ ions with T1/2=262 K and is quite favorable for the application in the lifetime-based luminescence thermometry since relative changes in emission decay values are exceptionally-large (around 3.21% at room temperature). We derived theoretical expressions for the temperature dependence of the absolute and relative sensitivities and discuss the influence of host material properties on lifetime sensitivities. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
T2  - ChemistrySelect
T1  - Li2TiO3:Mn4+ Deep‐Red Phosphor for the Lifetime‐Based Luminescence Thermometry
VL  - 4
IS  - 24
SP  - 7067
EP  - 7075
DO  - 10.1002/slct.201901590
ER  - 

@article{
author = "Dramićanin, Miroslav and Milićević, Bojana R. and Đorđević, Vesna R. and Ristić, Zoran and Zhou, Jianbang and Milivojević, Dušan and Papan, Jelena and Brik, Mikhail G. and Ma, Chong‐Geng and Srivastava, Alok M and Wu, Mingmei",
year = "2019",
abstract = "Luminescence of monoclinic lithium metatitanate (Li2TiO3) powders activated with different quantities of Mn4+ is studied in detail. Its strong deep-red emission arising from the Mn4+ 2Eg → 4A2g spin forbidden transition is centered at around 688 nm and is suitable for luminescence thermometry. Structural and electron paramagnetic resonance analyses show that Mn4+ ions are equally distributed in two almost identical Ti4+ sites in which they are octahedrally coordinated by six oxygen ions. Calculations based on the exchange charge model of the crystal field provided values of Racah parameters (B=760 cm−1, C= 2993 cm−1), crystal-field splitting Dq= 2043 cm−1, and the nephelauxetic parameter β1=0.9775. The maximal quantum efficiency of 24.1% at room temperature is found for 0.126% Mn4+ concentration. Temperature quenching of emission occurs by a cross-over via 4T2 excited state of the Mn4+ ions with T1/2=262 K and is quite favorable for the application in the lifetime-based luminescence thermometry since relative changes in emission decay values are exceptionally-large (around 3.21% at room temperature). We derived theoretical expressions for the temperature dependence of the absolute and relative sensitivities and discuss the influence of host material properties on lifetime sensitivities. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",
journal = "ChemistrySelect",
title = "Li2TiO3:Mn4+ Deep‐Red Phosphor for the Lifetime‐Based Luminescence Thermometry",
volume = "4",
number = "24",
pages = "7067-7075",
doi = "10.1002/slct.201901590"
}

Dramićanin, M., Milićević, B. R., Đorđević, V. R., Ristić, Z., Zhou, J., Milivojević, D., Papan, J., Brik, M. G., Ma, C., Srivastava, A. M.,& Wu, M.. (2019). Li2TiO3:Mn4+ Deep‐Red Phosphor for the Lifetime‐Based Luminescence Thermometry. in ChemistrySelect, 4(24), 7067-7075.
https://doi.org/10.1002/slct.201901590

Dramićanin M, Milićević BR, Đorđević VR, Ristić Z, Zhou J, Milivojević D, Papan J, Brik MG, Ma C, Srivastava AM, Wu M. Li2TiO3:Mn4+ Deep‐Red Phosphor for the Lifetime‐Based Luminescence Thermometry. in ChemistrySelect. 2019;4(24):7067-7075.
doi:10.1002/slct.201901590 .

Dramićanin, Miroslav, Milićević, Bojana R., Đorđević, Vesna R., Ristić, Zoran, Zhou, Jianbang, Milivojević, Dušan, Papan, Jelena, Brik, Mikhail G., Ma, Chong‐Geng, Srivastava, Alok M, Wu, Mingmei, "Li2TiO3:Mn4+ Deep‐Red Phosphor for the Lifetime‐Based Luminescence Thermometry" in ChemistrySelect, 4, no. 24 (2019):7067-7075,
https://doi.org/10.1002/slct.201901590 . .

TY  - JOUR
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
AU  - Pavlović, Vladimir B.
AU  - Papan, Jelena
AU  - Nedeljković, Jovan
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0272884219317018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8354
AB  - Nickel-modified titanate/TiO2 catalysts were prepared by deposition of nickel ions onto hydrothermally prepared titanate supports, followed by hydrogen temperature-programmed reduction. Two different nickel precursors (hydroxide and carbonate) were used to tune reducibility and to vary the crystal phase structure of the final catalysts. The precursor reducibility and functional properties of the final catalysts were investigated systematically using various characterisation techniques. The results revealed a more facile reduction of the hydroxide precursor compared to its carbonate counterpart. Moreover, it was found that the formation of the anatase phase was favoured by the use of the hydroxide precipitation agent. The photocatalytic activity towards hydrogen production of the prepared catalysts was evaluated in the presence of 2-propanol under simulated solar light irradiation. A thorough study of the photocatalytic performance of the synthesised catalysts was conducted as a function of the precipitation agent used and the reduction temperature applied. The catalyst with dominant anatase crystal phase displayed the highest photocatalytic activity with a maximum H2 production rate of 1040 μmol h−1 g−1, this being more than four times higher than that of its carbonate counterpart. The catalysts with titanate structure showed similar activity, independent of the precipitation method used. The nanotubular structure was found to be the dominant factor in the stability of photocatalysts under long-run working conditions. © 2019 Elsevier Ltd and Techna Group S.r.l.
T2  - Ceramics International
T1  - Efficient photocatalytic hydrogen production over titanate/titania nanostructures modified with nickel
VL  - 45
IS  - 15
SP  - 19447
EP  - 19455
DO  - 10.1016/j.ceramint.2019.06.200
ER  - 

@article{
author = "Dostanić, Jasmina and Lončarević, Davor and Pavlović, Vladimir B. and Papan, Jelena and Nedeljković, Jovan",
year = "2019",
abstract = "Nickel-modified titanate/TiO2 catalysts were prepared by deposition of nickel ions onto hydrothermally prepared titanate supports, followed by hydrogen temperature-programmed reduction. Two different nickel precursors (hydroxide and carbonate) were used to tune reducibility and to vary the crystal phase structure of the final catalysts. The precursor reducibility and functional properties of the final catalysts were investigated systematically using various characterisation techniques. The results revealed a more facile reduction of the hydroxide precursor compared to its carbonate counterpart. Moreover, it was found that the formation of the anatase phase was favoured by the use of the hydroxide precipitation agent. The photocatalytic activity towards hydrogen production of the prepared catalysts was evaluated in the presence of 2-propanol under simulated solar light irradiation. A thorough study of the photocatalytic performance of the synthesised catalysts was conducted as a function of the precipitation agent used and the reduction temperature applied. The catalyst with dominant anatase crystal phase displayed the highest photocatalytic activity with a maximum H2 production rate of 1040 μmol h−1 g−1, this being more than four times higher than that of its carbonate counterpart. The catalysts with titanate structure showed similar activity, independent of the precipitation method used. The nanotubular structure was found to be the dominant factor in the stability of photocatalysts under long-run working conditions. © 2019 Elsevier Ltd and Techna Group S.r.l.",
journal = "Ceramics International",
title = "Efficient photocatalytic hydrogen production over titanate/titania nanostructures modified with nickel",
volume = "45",
number = "15",
pages = "19447-19455",
doi = "10.1016/j.ceramint.2019.06.200"
}

Dostanić, J., Lončarević, D., Pavlović, V. B., Papan, J.,& Nedeljković, J.. (2019). Efficient photocatalytic hydrogen production over titanate/titania nanostructures modified with nickel. in Ceramics International, 45(15), 19447-19455.
https://doi.org/10.1016/j.ceramint.2019.06.200

Dostanić J, Lončarević D, Pavlović VB, Papan J, Nedeljković J. Efficient photocatalytic hydrogen production over titanate/titania nanostructures modified with nickel. in Ceramics International. 2019;45(15):19447-19455.
doi:10.1016/j.ceramint.2019.06.200 .

Dostanić, Jasmina, Lončarević, Davor, Pavlović, Vladimir B., Papan, Jelena, Nedeljković, Jovan, "Efficient photocatalytic hydrogen production over titanate/titania nanostructures modified with nickel" in Ceramics International, 45, no. 15 (2019):19447-19455,
https://doi.org/10.1016/j.ceramint.2019.06.200 . .

TY  - JOUR
AU  - Papan, Jelena
AU  - Jovanović, Dragana J.
AU  - Sekulić, Milica
AU  - Glais, Estelle
AU  - Dramićanin, Miroslav
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0032591019301093
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8057
AB  - Defect-fluorite structured Eu 3+ -doped Y 2 Sn 2 O 7 nanoparticles (30–40 nm) were successfully prepared through a facile co-precipitation method without any organic additives or templates followed by calcination in air. Luminescent properties of the as-prepared Y 2-x Eu x Sn 2 O 7 (0.02 ≤ x ≤ 0.6) nanophosphors were fully characterized from an experimental and theoretical point of view (excitation, emission, lifetime, critical concentration, temperature-dependent luminescence and thermal stability, type of interactions and the Judd-Ofelt analysis). The nanophosphors showed relatively sharp excitation bands from 360 to 530 nm and exhibited characteristic emission bands with the most intensive emission centered at 612 nm. In addition, Gd 1.98 Eu 0.02 Sn 2 O 7 and Lu 1.98 Eu 0.02 Sn 2 O 7 samples were prepared in order to study how substitution of RE 3+ (Y 3+ with Gd 3+ and Lu 3+ ions) influences on luminescent properties of RE 1.98 Eu 0.02 Sn 2 O 7 and thermal stability of their luminescence. In order to understand better luminescent properties, the Judd–Ofelt analysis was applied to all the synthesized powders. The highest value of quantum efficiency, ~96%, was estimated for Lu 1.98 Eu 0.02 Sn 2 O 7 . To assess potential application in high-power LEDs, the temperature-dependent emission spectra of Y 1.98 Eu 0.02 Sn 2 O 7 , Gd 1.98 Eu 0.02 Sn 2 O 7 and Lu 1.98 Eu 0.02 Sn 2 O 7 nanophosphors were studied. © 2019 Elsevier B.V.
T2  - Powder Technology
T1  - Photoluminescence properties and thermal stability of RE2-xEuxSn2O7 (RE = Y3+, Gd3+, Lu3+) red nanophosphors: An experimental and theoretical study
VL  - 346
SP  - 150
EP  - 159
DO  - 10.1016/j.powtec.2019.02.013
ER  - 

@article{
author = "Papan, Jelena and Jovanović, Dragana J. and Sekulić, Milica and Glais, Estelle and Dramićanin, Miroslav",
year = "2019",
abstract = "Defect-fluorite structured Eu 3+ -doped Y 2 Sn 2 O 7 nanoparticles (30–40 nm) were successfully prepared through a facile co-precipitation method without any organic additives or templates followed by calcination in air. Luminescent properties of the as-prepared Y 2-x Eu x Sn 2 O 7 (0.02 ≤ x ≤ 0.6) nanophosphors were fully characterized from an experimental and theoretical point of view (excitation, emission, lifetime, critical concentration, temperature-dependent luminescence and thermal stability, type of interactions and the Judd-Ofelt analysis). The nanophosphors showed relatively sharp excitation bands from 360 to 530 nm and exhibited characteristic emission bands with the most intensive emission centered at 612 nm. In addition, Gd 1.98 Eu 0.02 Sn 2 O 7 and Lu 1.98 Eu 0.02 Sn 2 O 7 samples were prepared in order to study how substitution of RE 3+ (Y 3+ with Gd 3+ and Lu 3+ ions) influences on luminescent properties of RE 1.98 Eu 0.02 Sn 2 O 7 and thermal stability of their luminescence. In order to understand better luminescent properties, the Judd–Ofelt analysis was applied to all the synthesized powders. The highest value of quantum efficiency, ~96%, was estimated for Lu 1.98 Eu 0.02 Sn 2 O 7 . To assess potential application in high-power LEDs, the temperature-dependent emission spectra of Y 1.98 Eu 0.02 Sn 2 O 7 , Gd 1.98 Eu 0.02 Sn 2 O 7 and Lu 1.98 Eu 0.02 Sn 2 O 7 nanophosphors were studied. © 2019 Elsevier B.V.",
journal = "Powder Technology",
title = "Photoluminescence properties and thermal stability of RE2-xEuxSn2O7 (RE = Y3+, Gd3+, Lu3+) red nanophosphors: An experimental and theoretical study",
volume = "346",
pages = "150-159",
doi = "10.1016/j.powtec.2019.02.013"
}

Papan, J., Jovanović, D. J., Sekulić, M., Glais, E.,& Dramićanin, M.. (2019). Photoluminescence properties and thermal stability of RE2-xEuxSn2O7 (RE = Y3+, Gd3+, Lu3+) red nanophosphors: An experimental and theoretical study. in Powder Technology, 346, 150-159.
https://doi.org/10.1016/j.powtec.2019.02.013

Papan J, Jovanović DJ, Sekulić M, Glais E, Dramićanin M. Photoluminescence properties and thermal stability of RE2-xEuxSn2O7 (RE = Y3+, Gd3+, Lu3+) red nanophosphors: An experimental and theoretical study. in Powder Technology. 2019;346:150-159.
doi:10.1016/j.powtec.2019.02.013 .

Papan, Jelena, Jovanović, Dragana J., Sekulić, Milica, Glais, Estelle, Dramićanin, Miroslav, "Photoluminescence properties and thermal stability of RE2-xEuxSn2O7 (RE = Y3+, Gd3+, Lu3+) red nanophosphors: An experimental and theoretical study" in Powder Technology, 346 (2019):150-159,
https://doi.org/10.1016/j.powtec.2019.02.013 . .

TY  - JOUR
AU  - Pavlović, Vera P.
AU  - Vujančević, Jelena
AU  - Mašković, Pavle Z.
AU  - Ćirković, Jovana
AU  - Papan, Jelena
AU  - Kosanović, Darko
AU  - Dramićanin, Miroslav
AU  - Petrović, Predrag B.
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8384
AB  - Titanium dioxide is a photocatalyst, known not only for its ability to oxidize organic contaminants, but also for its antimicrobial properties. In this article, significant enhancement of the antimicrobial activity of TiO2 (up to 32 times) was demonstrated after its activation by ball milling. The antimicrobial activity was analyzed for one fungal and 13 bacterial ATCC strains using the microdilution method and recording the minimum inhibitory concentration (MIC) values. In order to further investigate the correlation between the mechanical activation of TiO2 and its antimicrobial activity, the structure, morphology and phase composition of the material were studied by means of Electron Microscopy, X-ray diffraction and nitrogen adsorption-desorption measurements. UV-Vis diffuse reflectance spectra were recorded and the Kubelka-Munk function was applied to convert reflectance into the equivalent band gap energy (Eg) and, consequently, to investigate changes in the Eg value. X-ray photoelectron spectroscopy was used to analyze the influence of mechanical activation on the Ti 2p and O 1s spectra. The presented results are expected to enable the development of more sustainable and effective advanced TiO2-based materials with antimicrobial properties that could be used in numerous green technology applications.
T2  - Journal of the American Ceramic Society
T1  - Structure and enhanced antimicrobial activity of mechanically activated nano TiO2
VL  - 102
IS  - 12
SP  - 7735
EP  - 7745
DO  - 10.1111/jace.16668
ER  - 

@article{
author = "Pavlović, Vera P. and Vujančević, Jelena and Mašković, Pavle Z. and Ćirković, Jovana and Papan, Jelena and Kosanović, Darko and Dramićanin, Miroslav and Petrović, Predrag B. and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2019",
abstract = "Titanium dioxide is a photocatalyst, known not only for its ability to oxidize organic contaminants, but also for its antimicrobial properties. In this article, significant enhancement of the antimicrobial activity of TiO2 (up to 32 times) was demonstrated after its activation by ball milling. The antimicrobial activity was analyzed for one fungal and 13 bacterial ATCC strains using the microdilution method and recording the minimum inhibitory concentration (MIC) values. In order to further investigate the correlation between the mechanical activation of TiO2 and its antimicrobial activity, the structure, morphology and phase composition of the material were studied by means of Electron Microscopy, X-ray diffraction and nitrogen adsorption-desorption measurements. UV-Vis diffuse reflectance spectra were recorded and the Kubelka-Munk function was applied to convert reflectance into the equivalent band gap energy (Eg) and, consequently, to investigate changes in the Eg value. X-ray photoelectron spectroscopy was used to analyze the influence of mechanical activation on the Ti 2p and O 1s spectra. The presented results are expected to enable the development of more sustainable and effective advanced TiO2-based materials with antimicrobial properties that could be used in numerous green technology applications.",
journal = "Journal of the American Ceramic Society",
title = "Structure and enhanced antimicrobial activity of mechanically activated nano TiO2",
volume = "102",
number = "12",
pages = "7735-7745",
doi = "10.1111/jace.16668"
}

Pavlović, V. P., Vujančević, J., Mašković, P. Z., Ćirković, J., Papan, J., Kosanović, D., Dramićanin, M., Petrović, P. B., Vlahović, B.,& Pavlović, V. B.. (2019). Structure and enhanced antimicrobial activity of mechanically activated nano TiO2. in Journal of the American Ceramic Society, 102(12), 7735-7745.
https://doi.org/10.1111/jace.16668

Pavlović VP, Vujančević J, Mašković PZ, Ćirković J, Papan J, Kosanović D, Dramićanin M, Petrović PB, Vlahović B, Pavlović VB. Structure and enhanced antimicrobial activity of mechanically activated nano TiO2. in Journal of the American Ceramic Society. 2019;102(12):7735-7745.
doi:10.1111/jace.16668 .

Pavlović, Vera P., Vujančević, Jelena, Mašković, Pavle Z., Ćirković, Jovana, Papan, Jelena, Kosanović, Darko, Dramićanin, Miroslav, Petrović, Predrag B., Vlahović, Branislav, Pavlović, Vladimir B., "Structure and enhanced antimicrobial activity of mechanically activated nano TiO2" in Journal of the American Ceramic Society, 102, no. 12 (2019):7735-7745,
https://doi.org/10.1111/jace.16668 . .

TY  - JOUR
AU  - Pavlović, Vera P.
AU  - Vujančević, Jelena
AU  - Mašković, Pavle Z.
AU  - Ćirković, Jovana
AU  - Papan, Jelena
AU  - Kosanović, Darko
AU  - Dramićanin, Miroslav
AU  - Petrović, Predrag B.
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8380
AB  - Titanium dioxide is a photocatalyst, known not only for its ability to oxidize organic contaminants, but also for its antimicrobial properties. In this article, significant enhancement of the antimicrobial activity of TiO2 (up to 32 times) was demonstrated after its activation by ball milling. The antimicrobial activity was analyzed for one fungal and 13 bacterial ATCC strains using the microdilution method and recording the minimum inhibitory concentration (MIC) values. In order to further investigate the correlation between the mechanical activation of TiO2 and its antimicrobial activity, the structure, morphology and phase composition of the material were studied by means of Electron Microscopy, X-ray diffraction and nitrogen adsorption-desorption measurements. UV-Vis diffuse reflectance spectra were recorded and the Kubelka-Munk function was applied to convert reflectance into the equivalent band gap energy (Eg) and, consequently, to investigate changes in the Eg value. X-ray photoelectron spectroscopy was used to analyze the influence of mechanical activation on the Ti 2p and O 1s spectra. The presented results are expected to enable the development of more sustainable and effective advanced TiO2-based materials with antimicrobial properties that could be used in numerous green technology applications.
T2  - Journal of the American Ceramic Society
T1  - Structure and enhanced antimicrobial activity of mechanically activated nano TiO2
VL  - 102
IS  - 12
SP  - 7735
EP  - 7745
DO  - 10.1111/jace.16668
ER  - 

@article{
author = "Pavlović, Vera P. and Vujančević, Jelena and Mašković, Pavle Z. and Ćirković, Jovana and Papan, Jelena and Kosanović, Darko and Dramićanin, Miroslav and Petrović, Predrag B. and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2019",
abstract = "Titanium dioxide is a photocatalyst, known not only for its ability to oxidize organic contaminants, but also for its antimicrobial properties. In this article, significant enhancement of the antimicrobial activity of TiO2 (up to 32 times) was demonstrated after its activation by ball milling. The antimicrobial activity was analyzed for one fungal and 13 bacterial ATCC strains using the microdilution method and recording the minimum inhibitory concentration (MIC) values. In order to further investigate the correlation between the mechanical activation of TiO2 and its antimicrobial activity, the structure, morphology and phase composition of the material were studied by means of Electron Microscopy, X-ray diffraction and nitrogen adsorption-desorption measurements. UV-Vis diffuse reflectance spectra were recorded and the Kubelka-Munk function was applied to convert reflectance into the equivalent band gap energy (Eg) and, consequently, to investigate changes in the Eg value. X-ray photoelectron spectroscopy was used to analyze the influence of mechanical activation on the Ti 2p and O 1s spectra. The presented results are expected to enable the development of more sustainable and effective advanced TiO2-based materials with antimicrobial properties that could be used in numerous green technology applications.",
journal = "Journal of the American Ceramic Society",
title = "Structure and enhanced antimicrobial activity of mechanically activated nano TiO2",
volume = "102",
number = "12",
pages = "7735-7745",
doi = "10.1111/jace.16668"
}

Pavlović, V. P., Vujančević, J., Mašković, P. Z., Ćirković, J., Papan, J., Kosanović, D., Dramićanin, M., Petrović, P. B., Vlahović, B.,& Pavlović, V. B.. (2019). Structure and enhanced antimicrobial activity of mechanically activated nano TiO2. in Journal of the American Ceramic Society, 102(12), 7735-7745.
https://doi.org/10.1111/jace.16668

Pavlović VP, Vujančević J, Mašković PZ, Ćirković J, Papan J, Kosanović D, Dramićanin M, Petrović PB, Vlahović B, Pavlović VB. Structure and enhanced antimicrobial activity of mechanically activated nano TiO2. in Journal of the American Ceramic Society. 2019;102(12):7735-7745.
doi:10.1111/jace.16668 .

Pavlović, Vera P., Vujančević, Jelena, Mašković, Pavle Z., Ćirković, Jovana, Papan, Jelena, Kosanović, Darko, Dramićanin, Miroslav, Petrović, Predrag B., Vlahović, Branislav, Pavlović, Vladimir B., "Structure and enhanced antimicrobial activity of mechanically activated nano TiO2" in Journal of the American Ceramic Society, 102, no. 12 (2019):7735-7745,
https://doi.org/10.1111/jace.16668 . .

TY  - JOUR
AU  - Periša, Jovana
AU  - Papan, Jelena
AU  - Dolić, Slobodan D.
AU  - Jovanović, Dragana J.
AU  - Dramićanin, Miroslav
PY  - 2018
UR  - http://linkinghub.elsevier.com/retrieve/pii/S0143720818303577
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7754
AB  - Color tuning of down-shifting and up-conversion emissions of YOF:Ln(3+)/Yb3+ (Ln(3+) = Er3+, Tm3+) nanophosphors is demonstrated. Nanophosphors were prepared by the modified sol-gel Pechini method and characterized by the X-ray diffraction, transmission electron microscopy, and photoluminescence spectroscopy. Samples consist of 20 nm particles crystallized in the rhombohedral crystal structure. Depending on the Ln(3+) / Yb3+ concentration ratio and the type of excitation (UV/VIS or NIR) color of the particles emission varied from the blue to red. Commission Internationale de L'Eclairage chromaticity coordinates of emission colors are given for the range of Ln(3+)/Yb3+ concentration ratios for both down-shifting and up-conversion luminescence. We showed that the emission color of these nanophosphors may be additional tuned by simultaneous excitation with UV-VIS and NIR radiation (in different proportion) which yields unique color labels for the anti-counterfeit and security applications.
T2  - Dyes and Pigments
T1  - Multicolor-tunable emissions of YOF: Ln 3+ /Yb 3+ (Ln 3+ = Ho 3+ , Er 3+ , Tm 3+ ) nanophosphors
VL  - 155
SP  - 233
EP  - 240
DO  - 10.1016/j.dyepig.2018.03.047
ER  - 

@article{
author = "Periša, Jovana and Papan, Jelena and Dolić, Slobodan D. and Jovanović, Dragana J. and Dramićanin, Miroslav",
year = "2018",
abstract = "Color tuning of down-shifting and up-conversion emissions of YOF:Ln(3+)/Yb3+ (Ln(3+) = Er3+, Tm3+) nanophosphors is demonstrated. Nanophosphors were prepared by the modified sol-gel Pechini method and characterized by the X-ray diffraction, transmission electron microscopy, and photoluminescence spectroscopy. Samples consist of 20 nm particles crystallized in the rhombohedral crystal structure. Depending on the Ln(3+) / Yb3+ concentration ratio and the type of excitation (UV/VIS or NIR) color of the particles emission varied from the blue to red. Commission Internationale de L'Eclairage chromaticity coordinates of emission colors are given for the range of Ln(3+)/Yb3+ concentration ratios for both down-shifting and up-conversion luminescence. We showed that the emission color of these nanophosphors may be additional tuned by simultaneous excitation with UV-VIS and NIR radiation (in different proportion) which yields unique color labels for the anti-counterfeit and security applications.",
journal = "Dyes and Pigments",
title = "Multicolor-tunable emissions of YOF: Ln 3+ /Yb 3+ (Ln 3+ = Ho 3+ , Er 3+ , Tm 3+ ) nanophosphors",
volume = "155",
pages = "233-240",
doi = "10.1016/j.dyepig.2018.03.047"
}

Periša, J., Papan, J., Dolić, S. D., Jovanović, D. J.,& Dramićanin, M.. (2018). Multicolor-tunable emissions of YOF: Ln 3+ /Yb 3+ (Ln 3+ = Ho 3+ , Er 3+ , Tm 3+ ) nanophosphors. in Dyes and Pigments, 155, 233-240.
https://doi.org/10.1016/j.dyepig.2018.03.047

Periša J, Papan J, Dolić SD, Jovanović DJ, Dramićanin M. Multicolor-tunable emissions of YOF: Ln 3+ /Yb 3+ (Ln 3+ = Ho 3+ , Er 3+ , Tm 3+ ) nanophosphors. in Dyes and Pigments. 2018;155:233-240.
doi:10.1016/j.dyepig.2018.03.047 .

Periša, Jovana, Papan, Jelena, Dolić, Slobodan D., Jovanović, Dragana J., Dramićanin, Miroslav, "Multicolor-tunable emissions of YOF: Ln 3+ /Yb 3+ (Ln 3+ = Ho 3+ , Er 3+ , Tm 3+ ) nanophosphors" in Dyes and Pigments, 155 (2018):233-240,
https://doi.org/10.1016/j.dyepig.2018.03.047 . .

TY  - JOUR
AU  - Vujčić, Ivica
AU  - Gavrilović, Tamara V.
AU  - Sekulić, Milica
AU  - Mašić, Slobodan
AU  - Putić, Slaviša S.
AU  - Papan, Jelena
AU  - Dramićanin, Miroslav
PY  - 2018
UR  - http://linkinghub.elsevier.com/retrieve/pii/S0168583X18301666
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7669
AB  - Eu3+ activated LaPO4 phosphors were prepared by a high-temperature solid-state method and irradiated to different high-doses gamma-radiation in the 0-4 MGy range. No effects of high-doses of high-energy radiation on phosphor's morphology and structure were observed, as documented by electron microscopy and X-ray diffraction measurements. On the other hand, photoluminescence measurements showed that emission properties of phosphor were affected by gamma-radiation; changes in radiative properties being prominent for absorbed radiation doses up to 250 kGy after which no additional changes are observed. Judd-Ofelt analysis of emission spectra is performed to thoroughly investigate radiative properties of phosphors. Analysis showed that radiative transition probability of Eu3+ emission decreases while non-radiative probability increases upon gamma-irradiation. Quantum efficiency of emission is decreased from about 46% to 35% when Eu3+ doped LaPO4 powders are exposed to gamma-radiation of 250 kGy dose, showing no additional decrease for higher gamma-radiation doses.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor
VL  - 422
SP  - 85
EP  - 90
DO  - 10.1016/j.nimb.2018.03.002
ER  - 

@article{
author = "Vujčić, Ivica and Gavrilović, Tamara V. and Sekulić, Milica and Mašić, Slobodan and Putić, Slaviša S. and Papan, Jelena and Dramićanin, Miroslav",
year = "2018",
abstract = "Eu3+ activated LaPO4 phosphors were prepared by a high-temperature solid-state method and irradiated to different high-doses gamma-radiation in the 0-4 MGy range. No effects of high-doses of high-energy radiation on phosphor's morphology and structure were observed, as documented by electron microscopy and X-ray diffraction measurements. On the other hand, photoluminescence measurements showed that emission properties of phosphor were affected by gamma-radiation; changes in radiative properties being prominent for absorbed radiation doses up to 250 kGy after which no additional changes are observed. Judd-Ofelt analysis of emission spectra is performed to thoroughly investigate radiative properties of phosphors. Analysis showed that radiative transition probability of Eu3+ emission decreases while non-radiative probability increases upon gamma-irradiation. Quantum efficiency of emission is decreased from about 46% to 35% when Eu3+ doped LaPO4 powders are exposed to gamma-radiation of 250 kGy dose, showing no additional decrease for higher gamma-radiation doses.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor",
volume = "422",
pages = "85-90",
doi = "10.1016/j.nimb.2018.03.002"
}

Vujčić, I., Gavrilović, T. V., Sekulić, M., Mašić, S., Putić, S. S., Papan, J.,& Dramićanin, M.. (2018). Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 422, 85-90.
https://doi.org/10.1016/j.nimb.2018.03.002

Vujčić I, Gavrilović TV, Sekulić M, Mašić S, Putić SS, Papan J, Dramićanin M. Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2018;422:85-90.
doi:10.1016/j.nimb.2018.03.002 .

Vujčić, Ivica, Gavrilović, Tamara V., Sekulić, Milica, Mašić, Slobodan, Putić, Slaviša S., Papan, Jelena, Dramićanin, Miroslav, "Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 422 (2018):85-90,
https://doi.org/10.1016/j.nimb.2018.03.002 . .

TY  - THES
AU  - Papan, Jelena
PY  - 2018
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=6242
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:18849/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=99999&RID=50653711
UR  - http://nardus.mpn.gov.rs/123456789/10219
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8132
AB  - U okviru ove doktorske disertacije sintetisani su neorganski luminescentni materijali opšte formule A2B2O7 (A3+, B4+) na bazi itrijum-hafnata (Y2Hf2O7), itrijum-cirkonata (Y2Zr2O7) i itrijum-stanata (Y2Sn2O7) i koji su dopirani jonima europijuma (Eu3+) u širokim opsezima koncentracija. Materijali su sintetisani metodom termalne dekompozicije uz korišćenje PEG-a kao goriva i ko-precipitacionom tehnikom uz dodatno žarenje na optimalnoj temperaturi u vremenskom intervalu od 24 sata. Dopiranje je izvršeno u opsegu 0≤ x ≤ 1 za sisteme Y2-xEuxHf2O7 i Y2-xEuxZr2O7 i u opsegu 0≤ x ≤ 0,6 za sistem Y2-xEuxSn2O7 (gde je x udeo Eu3+ jona). Sintetisani su i uzorci kod kojih je jon itrijuma (A3+ = Y3+) potpuno zamenjen jonima gadolinijuma (Gd3+) i lutecijuma (Lu3+) pri čemu je koncentracija europijuma bila konstantna. Svi uzorci su kristalisali u defektno fluoritnu fazu prostorne grupe Fm3̅m. Dobijene su čestice nanodimenzija, pretežno kockastog oblika. Detaljno su ispitivane optičke osobine. Sve ispitivane uzorke karakteriše efikasna apsorpcija na 464 nm i dominatna emisija u crvenom delu spektra na oko 612 nm. Određena su vremena života, kritična rastojanja, tip multipolarnih interakcija odgovornih za gašenje signala i matematički su definisane boje. Džud-Ofeltovom analizom je utvrđeno da povećanje procenta dopiranja dovodi do smanjenja asimetričnog odnosa što ukazuje da okruženje oko jona dopanta (Eu3+) sa povećanjem procenta dopiranja postaje simetričnije. Neke od ispitivanih uzoraka karakteriše i jako visoka kvantna efikasnost ( > 90%) što je izuzetno bitno za eventualnu komercijalnu primenu.
AB  - Within this doctoral thesis, synthesized samples are inorganic luminescent materials, with general formula A2B2O7 (A3+, B4+), bazed on yttrium-hafnate (Y2Hf2O7), yttrium-zirconate (Y2Zr2O7 ) and yttrium-stanate (Y2Sn2O7) doped with europium ions, in wide concentration range. These materials were synthesized by PEG and co-precipitation method, at optimal temperature, for 24 h. Also, one part of obtained samples are samples where are yttrium ions (Y3+) completely exchanged with gadolinium ions (Gd3+) and lutetium ions (Lu3+), where concentration of europium is constant (1 at. Eu3+). Samples are doped in range 0≤ x ≤ 1 in systems Y2-xEuxHf2O7 and Y2-xEuxZr2O7, and in range 0≤ x ≤ 0,6 in system Y2-xEuxSn2O7 (where x is atomic percentage of Eu3+). All samples are crystalited in defect-flurite phase, with space group Fm3̅m. Obtained particles have nanodimensions, predominantly round-cube shape. Detailed study of optical properties is examined. Studied samples had caracteristic effective absorption at 464 nm, with a red emission of about 612 nm. Determined parameters are: life time, critical distance, type of multipolar interactions responsable for signal quenching and emitting colors are matematicaly defined. Judd-Ofelt analysis showed that doping increases the asymmetric ratio, which indicates that the dopant environment (Eu3+) with more doping becomes more symmetrical. Some of the tested samples are characterized by very high quantum efficiency ( > 90%) which is important for possible commercial application.
PB  - Универзитет у Београду, Хемијски факултет
T2  - Универзитет у Београду
T1  - Sinteza, strukturne i optičke osobine itrijum-hafnata, itrijum-cirkonata i itrijum-stanata dopiranih jonima europijuma
UR  - https://hdl.handle.net/21.15107/rcub_nardus_10219
ER  - 

@phdthesis{
author = "Papan, Jelena",
year = "2018",
abstract = "U okviru ove doktorske disertacije sintetisani su neorganski luminescentni materijali opšte formule A2B2O7 (A3+, B4+) na bazi itrijum-hafnata (Y2Hf2O7), itrijum-cirkonata (Y2Zr2O7) i itrijum-stanata (Y2Sn2O7) i koji su dopirani jonima europijuma (Eu3+) u širokim opsezima koncentracija. Materijali su sintetisani metodom termalne dekompozicije uz korišćenje PEG-a kao goriva i ko-precipitacionom tehnikom uz dodatno žarenje na optimalnoj temperaturi u vremenskom intervalu od 24 sata. Dopiranje je izvršeno u opsegu 0≤ x ≤ 1 za sisteme Y2-xEuxHf2O7 i Y2-xEuxZr2O7 i u opsegu 0≤ x ≤ 0,6 za sistem Y2-xEuxSn2O7 (gde je x udeo Eu3+ jona). Sintetisani su i uzorci kod kojih je jon itrijuma (A3+ = Y3+) potpuno zamenjen jonima gadolinijuma (Gd3+) i lutecijuma (Lu3+) pri čemu je koncentracija europijuma bila konstantna. Svi uzorci su kristalisali u defektno fluoritnu fazu prostorne grupe Fm3̅m. Dobijene su čestice nanodimenzija, pretežno kockastog oblika. Detaljno su ispitivane optičke osobine. Sve ispitivane uzorke karakteriše efikasna apsorpcija na 464 nm i dominatna emisija u crvenom delu spektra na oko 612 nm. Određena su vremena života, kritična rastojanja, tip multipolarnih interakcija odgovornih za gašenje signala i matematički su definisane boje. Džud-Ofeltovom analizom je utvrđeno da povećanje procenta dopiranja dovodi do smanjenja asimetričnog odnosa što ukazuje da okruženje oko jona dopanta (Eu3+) sa povećanjem procenta dopiranja postaje simetričnije. Neke od ispitivanih uzoraka karakteriše i jako visoka kvantna efikasnost ( > 90%) što je izuzetno bitno za eventualnu komercijalnu primenu., Within this doctoral thesis, synthesized samples are inorganic luminescent materials, with general formula A2B2O7 (A3+, B4+), bazed on yttrium-hafnate (Y2Hf2O7), yttrium-zirconate (Y2Zr2O7 ) and yttrium-stanate (Y2Sn2O7) doped with europium ions, in wide concentration range. These materials were synthesized by PEG and co-precipitation method, at optimal temperature, for 24 h. Also, one part of obtained samples are samples where are yttrium ions (Y3+) completely exchanged with gadolinium ions (Gd3+) and lutetium ions (Lu3+), where concentration of europium is constant (1 at. Eu3+). Samples are doped in range 0≤ x ≤ 1 in systems Y2-xEuxHf2O7 and Y2-xEuxZr2O7, and in range 0≤ x ≤ 0,6 in system Y2-xEuxSn2O7 (where x is atomic percentage of Eu3+). All samples are crystalited in defect-flurite phase, with space group Fm3̅m. Obtained particles have nanodimensions, predominantly round-cube shape. Detailed study of optical properties is examined. Studied samples had caracteristic effective absorption at 464 nm, with a red emission of about 612 nm. Determined parameters are: life time, critical distance, type of multipolar interactions responsable for signal quenching and emitting colors are matematicaly defined. Judd-Ofelt analysis showed that doping increases the asymmetric ratio, which indicates that the dopant environment (Eu3+) with more doping becomes more symmetrical. Some of the tested samples are characterized by very high quantum efficiency ( > 90%) which is important for possible commercial application.",
publisher = "Универзитет у Београду, Хемијски факултет",
journal = "Универзитет у Београду",
title = "Sinteza, strukturne i optičke osobine itrijum-hafnata, itrijum-cirkonata i itrijum-stanata dopiranih jonima europijuma",
url = "https://hdl.handle.net/21.15107/rcub_nardus_10219"
}

Papan, J.. (2018). Sinteza, strukturne i optičke osobine itrijum-hafnata, itrijum-cirkonata i itrijum-stanata dopiranih jonima europijuma. in Универзитет у Београду
Универзитет у Београду, Хемијски факултет..
https://hdl.handle.net/21.15107/rcub_nardus_10219

Papan J. Sinteza, strukturne i optičke osobine itrijum-hafnata, itrijum-cirkonata i itrijum-stanata dopiranih jonima europijuma. in Универзитет у Београду. 2018;.
https://hdl.handle.net/21.15107/rcub_nardus_10219 .

Papan, Jelena, "Sinteza, strukturne i optičke osobine itrijum-hafnata, itrijum-cirkonata i itrijum-stanata dopiranih jonima europijuma" in Универзитет у Београду (2018),
https://hdl.handle.net/21.15107/rcub_nardus_10219 .

TY  - JOUR
AU  - Gavrilović, Tamara V.
AU  - Periša, Jovana
AU  - Papan, Jelena
AU  - Vuković, Katarina
AU  - Smits, Krisjanis
AU  - Jovanović, Dragana J.
AU  - Dramićanin, Miroslav
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1881
AB  - This paper provides the detailed study of (nano) particles size effect on structural and luminescent properties of LaPO4: Eu3+ synthesized by four different methods: high temperature solid-state, co-precipitation, reverse micelle and colloidal. These methods delivered monoclinic monazite-phase submicron particles ( GT 100 nm), 4 x 20 nm nanorods and 5 nm spheres (depending on the annealing temperature), 2 x 15 nm nanorods, and ultrasmall spheres (2 nm), respectively. The analysis of emission intensity dependence on Eu3+ concentration showed that quenching concentration increases with a decrease of the particle size. The critical distance for energy transfer between Eu3+ ions is found to be 18.2 angstrom, and the dipole-dipole interaction is the dominant mechanism responsible for the concentration quenching of emission. With the increase in Eu3+ concentration, the unit-cell parameter slightly increases to accommodate larger Eu3+ ions at sites of smaller La3+ ions. Photoluminescent emission spectra presented four characteristic bands in the red spectral region: at 592 nm (D-5(0) - GT F-7(1)), at 612 nm (D-5(0) - GT F-7(2)), at 652 nm (D-5(0) - GT F-7(3)) and at 684 nm (D-5(0) - GT F-7(4)), while in small colloidal nanoparticles additional emission bands from host defects appear at shorter wavelengths. Intensities of f-f electronic transitions change with particles size due to small changes in symmetry around europium sites, while emission bandwidths increase with the reduction of particle size due to increased structural disorder. Judd-Ofelt analysis showed that internal quantum yield of Eu3+ emission is strongly influenced by particles morphology.
T2  - Journal of Luminescence
T1  - Particle size effects on the structure and emission of Eu3+: LaPO4 and EuPO4 phosphors
VL  - 195
SP  - 420
EP  - 429
DO  - 10.1016/j.jlumin.2017.12.002
ER  - 

@article{
author = "Gavrilović, Tamara V. and Periša, Jovana and Papan, Jelena and Vuković, Katarina and Smits, Krisjanis and Jovanović, Dragana J. and Dramićanin, Miroslav",
year = "2018",
abstract = "This paper provides the detailed study of (nano) particles size effect on structural and luminescent properties of LaPO4: Eu3+ synthesized by four different methods: high temperature solid-state, co-precipitation, reverse micelle and colloidal. These methods delivered monoclinic monazite-phase submicron particles ( GT 100 nm), 4 x 20 nm nanorods and 5 nm spheres (depending on the annealing temperature), 2 x 15 nm nanorods, and ultrasmall spheres (2 nm), respectively. The analysis of emission intensity dependence on Eu3+ concentration showed that quenching concentration increases with a decrease of the particle size. The critical distance for energy transfer between Eu3+ ions is found to be 18.2 angstrom, and the dipole-dipole interaction is the dominant mechanism responsible for the concentration quenching of emission. With the increase in Eu3+ concentration, the unit-cell parameter slightly increases to accommodate larger Eu3+ ions at sites of smaller La3+ ions. Photoluminescent emission spectra presented four characteristic bands in the red spectral region: at 592 nm (D-5(0) - GT F-7(1)), at 612 nm (D-5(0) - GT F-7(2)), at 652 nm (D-5(0) - GT F-7(3)) and at 684 nm (D-5(0) - GT F-7(4)), while in small colloidal nanoparticles additional emission bands from host defects appear at shorter wavelengths. Intensities of f-f electronic transitions change with particles size due to small changes in symmetry around europium sites, while emission bandwidths increase with the reduction of particle size due to increased structural disorder. Judd-Ofelt analysis showed that internal quantum yield of Eu3+ emission is strongly influenced by particles morphology.",
journal = "Journal of Luminescence",
title = "Particle size effects on the structure and emission of Eu3+: LaPO4 and EuPO4 phosphors",
volume = "195",
pages = "420-429",
doi = "10.1016/j.jlumin.2017.12.002"
}

Gavrilović, T. V., Periša, J., Papan, J., Vuković, K., Smits, K., Jovanović, D. J.,& Dramićanin, M.. (2018). Particle size effects on the structure and emission of Eu3+: LaPO4 and EuPO4 phosphors. in Journal of Luminescence, 195, 420-429.
https://doi.org/10.1016/j.jlumin.2017.12.002

Gavrilović TV, Periša J, Papan J, Vuković K, Smits K, Jovanović DJ, Dramićanin M. Particle size effects on the structure and emission of Eu3+: LaPO4 and EuPO4 phosphors. in Journal of Luminescence. 2018;195:420-429.
doi:10.1016/j.jlumin.2017.12.002 .

Gavrilović, Tamara V., Periša, Jovana, Papan, Jelena, Vuković, Katarina, Smits, Krisjanis, Jovanović, Dragana J., Dramićanin, Miroslav, "Particle size effects on the structure and emission of Eu3+: LaPO4 and EuPO4 phosphors" in Journal of Luminescence, 195 (2018):420-429,
https://doi.org/10.1016/j.jlumin.2017.12.002 . .

TY  - JOUR
AU  - Glais, Estelle
AU  - Đorđević, Vesna R.
AU  - Papan, Jelena
AU  - Viana, Bruno
AU  - Dramićanin, Miroslav
PY  - 2018
UR  - http://xlink.rsc.org/?DOI=C8RA02482K
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7693
AB  - MgTiO3 nanoparticles doped with Mn4+, with homogeneous size ranging about 63.1 ± 9.8 nm, were synthesized by a molten salt assisted sol gel method. These nanoparticles have been investigated as optical thermal sensors. The luminescence of tetravalent manganese ion in octahedral environment within the perovskite host presents drastic variations with temperature. Three different thermometry approaches have been proposed and characterized. Two luminescence intensity ratios are studied. Firstly between the two R-lines of Mn4+ emission at low temperature (-250 °C and -90 °C) with a maximal sensitivity of 0.9% °C-1, but also secondly between 2E → 4A2 (R-line) and the 4T2 → 4A2 transitions. This allows studying the temperature variation within a larger temperature range (-200 °C to 50 °C) with a sensitivity between 0.6% °C-1 and 1.2% °C-1 over this range. The last proposed method is the study of the lifetime variation versus temperature. The effective lifetime value corresponds to a combination of transitions from two excited energy levels of the tetravalent manganese (2E and 4T2) in thermal equilibrium toward the fundamental 4A2 state. Since the more energetic transition (4T2 → 4A2) is spin-allowed, contrary to the 2E → 4A2 one, the lifetime drastically decreases with the increase in temperature leading to an impressive high sensitivity value of 4.1% °C-1 at 4 °C and an exceptional temperature resolution of 0.025 °C. According to their optical features, MgTiO3:Mn4+ nanoparticles are indeed suitable candidates for the luminescence temperature probes at the nanoscale over several temperature ranges.
T2  - RSC Advances
T1  - MgTiO 3:Mn 4+ a multi-reading temperature nanoprobe
VL  - 8
IS  - 33
SP  - 18341
EP  - 18346
DO  - 10.1039/C8RA02482K
ER  - 

@article{
author = "Glais, Estelle and Đorđević, Vesna R. and Papan, Jelena and Viana, Bruno and Dramićanin, Miroslav",
year = "2018",
abstract = "MgTiO3 nanoparticles doped with Mn4+, with homogeneous size ranging about 63.1 ± 9.8 nm, were synthesized by a molten salt assisted sol gel method. These nanoparticles have been investigated as optical thermal sensors. The luminescence of tetravalent manganese ion in octahedral environment within the perovskite host presents drastic variations with temperature. Three different thermometry approaches have been proposed and characterized. Two luminescence intensity ratios are studied. Firstly between the two R-lines of Mn4+ emission at low temperature (-250 °C and -90 °C) with a maximal sensitivity of 0.9% °C-1, but also secondly between 2E → 4A2 (R-line) and the 4T2 → 4A2 transitions. This allows studying the temperature variation within a larger temperature range (-200 °C to 50 °C) with a sensitivity between 0.6% °C-1 and 1.2% °C-1 over this range. The last proposed method is the study of the lifetime variation versus temperature. The effective lifetime value corresponds to a combination of transitions from two excited energy levels of the tetravalent manganese (2E and 4T2) in thermal equilibrium toward the fundamental 4A2 state. Since the more energetic transition (4T2 → 4A2) is spin-allowed, contrary to the 2E → 4A2 one, the lifetime drastically decreases with the increase in temperature leading to an impressive high sensitivity value of 4.1% °C-1 at 4 °C and an exceptional temperature resolution of 0.025 °C. According to their optical features, MgTiO3:Mn4+ nanoparticles are indeed suitable candidates for the luminescence temperature probes at the nanoscale over several temperature ranges.",
journal = "RSC Advances",
title = "MgTiO 3:Mn 4+ a multi-reading temperature nanoprobe",
volume = "8",
number = "33",
pages = "18341-18346",
doi = "10.1039/C8RA02482K"
}

Glais, E., Đorđević, V. R., Papan, J., Viana, B.,& Dramićanin, M.. (2018). MgTiO 3:Mn 4+ a multi-reading temperature nanoprobe. in RSC Advances, 8(33), 18341-18346.
https://doi.org/10.1039/C8RA02482K

Glais E, Đorđević VR, Papan J, Viana B, Dramićanin M. MgTiO 3:Mn 4+ a multi-reading temperature nanoprobe. in RSC Advances. 2018;8(33):18341-18346.
doi:10.1039/C8RA02482K .

Glais, Estelle, Đorđević, Vesna R., Papan, Jelena, Viana, Bruno, Dramićanin, Miroslav, "MgTiO 3:Mn 4+ a multi-reading temperature nanoprobe" in RSC Advances, 8, no. 33 (2018):18341-18346,
https://doi.org/10.1039/C8RA02482K . .

TY  - JOUR
AU  - Ivetić, Tamara B.
AU  - Sekulić, Dalibor L.
AU  - Papan, Jelena
AU  - Guth, Imre O.
AU  - Petrović, Dragoslav M.
AU  - Lukić-Petrović, Svetlana R.
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0272884218318674
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7813
AB  - This paper describes the processing, microstructure, optical and electrical properties of the nanocrystalline (NC) niobium and zinc doped titanium-tin-oxide (TTO:NZ) based ceramics. Variety of techniques was employed (X-ray diffraction, scanning electron microscopy, energy dispersive, Raman and impedance spectroscopy) in the characterization of the obtained TTO:NZ, which confirmed the formation of NC solid-solution matrix with Ti0.8Sn0.2O2 composition. A specific highly dense (approximately 97% of the theoretical density was reached) varistor like microstructure (matrix metal-oxide grains surrounded by the grain-boundary regions) and accordingly resembling electrical properties (breakdown electric field of approximately 130 V/mm and nonlinearity coefficient of α ≈ 6.5) were achieved through double cation doping and elected condition of the mechanochemical solid-state synthesis. Impedance response analysis of TTO:NZ ceramics by means of an equivalent electrical circuit based on the brick-layer model for polycrystalline materials revealed the presence of two temperature dependent electrical relaxation phenomena of the non-Debye type as well as the negative temperature coefficient of resistance behavior.
T2  - Ceramics International
T1  - Niobium and zinc doped titanium-tin-oxide solid-solution ceramics: Synthesis, structure and electrical characterization
VL  - 44
IS  - 15
SP  - 18987
EP  - 18995
DO  - 10.1016/j.ceramint.2018.07.139
ER  - 

@article{
author = "Ivetić, Tamara B. and Sekulić, Dalibor L. and Papan, Jelena and Guth, Imre O. and Petrović, Dragoslav M. and Lukić-Petrović, Svetlana R.",
year = "2018",
abstract = "This paper describes the processing, microstructure, optical and electrical properties of the nanocrystalline (NC) niobium and zinc doped titanium-tin-oxide (TTO:NZ) based ceramics. Variety of techniques was employed (X-ray diffraction, scanning electron microscopy, energy dispersive, Raman and impedance spectroscopy) in the characterization of the obtained TTO:NZ, which confirmed the formation of NC solid-solution matrix with Ti0.8Sn0.2O2 composition. A specific highly dense (approximately 97% of the theoretical density was reached) varistor like microstructure (matrix metal-oxide grains surrounded by the grain-boundary regions) and accordingly resembling electrical properties (breakdown electric field of approximately 130 V/mm and nonlinearity coefficient of α ≈ 6.5) were achieved through double cation doping and elected condition of the mechanochemical solid-state synthesis. Impedance response analysis of TTO:NZ ceramics by means of an equivalent electrical circuit based on the brick-layer model for polycrystalline materials revealed the presence of two temperature dependent electrical relaxation phenomena of the non-Debye type as well as the negative temperature coefficient of resistance behavior.",
journal = "Ceramics International",
title = "Niobium and zinc doped titanium-tin-oxide solid-solution ceramics: Synthesis, structure and electrical characterization",
volume = "44",
number = "15",
pages = "18987-18995",
doi = "10.1016/j.ceramint.2018.07.139"
}

Ivetić, T. B., Sekulić, D. L., Papan, J., Guth, I. O., Petrović, D. M.,& Lukić-Petrović, S. R.. (2018). Niobium and zinc doped titanium-tin-oxide solid-solution ceramics: Synthesis, structure and electrical characterization. in Ceramics International, 44(15), 18987-18995.
https://doi.org/10.1016/j.ceramint.2018.07.139

Ivetić TB, Sekulić DL, Papan J, Guth IO, Petrović DM, Lukić-Petrović SR. Niobium and zinc doped titanium-tin-oxide solid-solution ceramics: Synthesis, structure and electrical characterization. in Ceramics International. 2018;44(15):18987-18995.
doi:10.1016/j.ceramint.2018.07.139 .

Ivetić, Tamara B., Sekulić, Dalibor L., Papan, Jelena, Guth, Imre O., Petrović, Dragoslav M., Lukić-Petrović, Svetlana R., "Niobium and zinc doped titanium-tin-oxide solid-solution ceramics: Synthesis, structure and electrical characterization" in Ceramics International, 44, no. 15 (2018):18987-18995,
https://doi.org/10.1016/j.ceramint.2018.07.139 . .

TY  - JOUR
AU  - Davidović, Slađana Z.
AU  - Lazić, Vesna M.
AU  - Vukoje, Ivana D.
AU  - Papan, Jelena
AU  - Anhrenkiel, S. Phillip
AU  - Dimitrijević, Suzana I.
AU  - Nedeljković, Jovan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1887
AB  - A simple, fast and non-costly method for selective cysteine (Cys) detection, based on optical changes of silver colloids, is developed. For that purpose, stable colloids consisting of silver nanoparticles (Ag NPs) coated with polysaccharide dextran (Dex), isolated from bacterium species Leuconostoc mesenteroides T3, were prepared. The synthesized samples were thoroughly characterized including absorption and FTIR spectroscopy, as well as transmission electron microscopy and X-ray diffraction analysis. The silver colloids display high sensitivity and selectivity towards Cys detection in aqueous solutions. The Ag NPs coated with Dex provide possibility to detect Cys among a dozen amino acids and its detection limit was found to be 12.0 M. The sensing mechanism - red shift of optical absorption - is discussed in terms of the agglomeration of Ag NPs due to formation of hydrogen bonds between Cys molecules attached to different Ag NPs. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Colloids and Surfaces. B: Biointerfaces
T1  - Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection
VL  - 160
SP  - 184
EP  - 191
DO  - 10.1016/j.colsurfb.2017.09.031
ER  - 

@article{
author = "Davidović, Slađana Z. and Lazić, Vesna M. and Vukoje, Ivana D. and Papan, Jelena and Anhrenkiel, S. Phillip and Dimitrijević, Suzana I. and Nedeljković, Jovan",
year = "2017",
abstract = "A simple, fast and non-costly method for selective cysteine (Cys) detection, based on optical changes of silver colloids, is developed. For that purpose, stable colloids consisting of silver nanoparticles (Ag NPs) coated with polysaccharide dextran (Dex), isolated from bacterium species Leuconostoc mesenteroides T3, were prepared. The synthesized samples were thoroughly characterized including absorption and FTIR spectroscopy, as well as transmission electron microscopy and X-ray diffraction analysis. The silver colloids display high sensitivity and selectivity towards Cys detection in aqueous solutions. The Ag NPs coated with Dex provide possibility to detect Cys among a dozen amino acids and its detection limit was found to be 12.0 M. The sensing mechanism - red shift of optical absorption - is discussed in terms of the agglomeration of Ag NPs due to formation of hydrogen bonds between Cys molecules attached to different Ag NPs. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Colloids and Surfaces. B: Biointerfaces",
title = "Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection",
volume = "160",
pages = "184-191",
doi = "10.1016/j.colsurfb.2017.09.031"
}

Davidović, S. Z., Lazić, V. M., Vukoje, I. D., Papan, J., Anhrenkiel, S. P., Dimitrijević, S. I.,& Nedeljković, J.. (2017). Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection. in Colloids and Surfaces. B: Biointerfaces, 160, 184-191.
https://doi.org/10.1016/j.colsurfb.2017.09.031

Davidović SZ, Lazić VM, Vukoje ID, Papan J, Anhrenkiel SP, Dimitrijević SI, Nedeljković J. Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection. in Colloids and Surfaces. B: Biointerfaces. 2017;160:184-191.
doi:10.1016/j.colsurfb.2017.09.031 .

Davidović, Slađana Z., Lazić, Vesna M., Vukoje, Ivana D., Papan, Jelena, Anhrenkiel, S. Phillip, Dimitrijević, Suzana I., Nedeljković, Jovan, "Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection" in Colloids and Surfaces. B: Biointerfaces, 160 (2017):184-191,
https://doi.org/10.1016/j.colsurfb.2017.09.031 . .

TY  - JOUR
AU  - Smičiklas, Ivana D.
AU  - Papan, Jelena
AU  - Lazić, Vesna M.
AU  - Lončarević, Davor
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1732
AB  - The biogenic hydroxyapatite (BHAP), obtained by proper treatment of bovine bones, was functionalized with 5-aminosalicylic acid (5-ASA). The coordination of 5-ASA to the surface of BHAP leads to the charge transfer (CT) complex formation accompanied with absorption in visible spectral range. The sorption ability of surface-modified BHAP with 5-ASA (5-ASA/BHAP) for removal of Pb2+ and Cu2+ ions from single-and bi-component solutions was compared with unmodified BHAP. The thorough characterization of both sorbents, BHAP and 5-ASA/BHAP, was performed including X-ray diffraction analysis (XRD), transmission electron microscopy (TEM), nitrogen adsorption-desorption isotherms, as well as diffuse reflection spectroscopy. Sorption kinetics and equilibriums for both ions (Pb2+ and Cu2+) by as-prepared BHAP and 5-ASA/BHAP are quite different. Functionalized sorbent demonstrated faster sorption kinetic and higher maximum sorption capacity for Pb2+ ions from bi-component solutions. From equimolar Pb2+ and Cu2+ mixture with a total concentration of 10-2 mol/L, 66% of Pb2+ was recovered using BHAP, while 97% using 5-ASA/BHAP. These preliminary data indicate potential applicability of properly functionalized hydroxyapatite for selective removal of heavy metal ions from contaminated water.
T2  - Journal of Environmental Chemical Engineering
T1  - Functionalized biogenic hydroxyapatite with 5-aminosalicylic acid - Sorbent for efficient separation of Pb2+ and Cu2+ ions
VL  - 5
IS  - 4
SP  - 3759
EP  - 3765
DO  - 10.1016/j.jece.2017.07.027
ER  - 

@article{
author = "Smičiklas, Ivana D. and Papan, Jelena and Lazić, Vesna M. and Lončarević, Davor and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2017",
abstract = "The biogenic hydroxyapatite (BHAP), obtained by proper treatment of bovine bones, was functionalized with 5-aminosalicylic acid (5-ASA). The coordination of 5-ASA to the surface of BHAP leads to the charge transfer (CT) complex formation accompanied with absorption in visible spectral range. The sorption ability of surface-modified BHAP with 5-ASA (5-ASA/BHAP) for removal of Pb2+ and Cu2+ ions from single-and bi-component solutions was compared with unmodified BHAP. The thorough characterization of both sorbents, BHAP and 5-ASA/BHAP, was performed including X-ray diffraction analysis (XRD), transmission electron microscopy (TEM), nitrogen adsorption-desorption isotherms, as well as diffuse reflection spectroscopy. Sorption kinetics and equilibriums for both ions (Pb2+ and Cu2+) by as-prepared BHAP and 5-ASA/BHAP are quite different. Functionalized sorbent demonstrated faster sorption kinetic and higher maximum sorption capacity for Pb2+ ions from bi-component solutions. From equimolar Pb2+ and Cu2+ mixture with a total concentration of 10-2 mol/L, 66% of Pb2+ was recovered using BHAP, while 97% using 5-ASA/BHAP. These preliminary data indicate potential applicability of properly functionalized hydroxyapatite for selective removal of heavy metal ions from contaminated water.",
journal = "Journal of Environmental Chemical Engineering",
title = "Functionalized biogenic hydroxyapatite with 5-aminosalicylic acid - Sorbent for efficient separation of Pb2+ and Cu2+ ions",
volume = "5",
number = "4",
pages = "3759-3765",
doi = "10.1016/j.jece.2017.07.027"
}

Smičiklas, I. D., Papan, J., Lazić, V. M., Lončarević, D., Ahrenkiel, S. P.,& Nedeljković, J.. (2017). Functionalized biogenic hydroxyapatite with 5-aminosalicylic acid - Sorbent for efficient separation of Pb2+ and Cu2+ ions. in Journal of Environmental Chemical Engineering, 5(4), 3759-3765.
https://doi.org/10.1016/j.jece.2017.07.027

Smičiklas ID, Papan J, Lazić VM, Lončarević D, Ahrenkiel SP, Nedeljković J. Functionalized biogenic hydroxyapatite with 5-aminosalicylic acid - Sorbent for efficient separation of Pb2+ and Cu2+ ions. in Journal of Environmental Chemical Engineering. 2017;5(4):3759-3765.
doi:10.1016/j.jece.2017.07.027 .

Smičiklas, Ivana D., Papan, Jelena, Lazić, Vesna M., Lončarević, Davor, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Functionalized biogenic hydroxyapatite with 5-aminosalicylic acid - Sorbent for efficient separation of Pb2+ and Cu2+ ions" in Journal of Environmental Chemical Engineering, 5, no. 4 (2017):3759-3765,
https://doi.org/10.1016/j.jece.2017.07.027 . .

TY  - JOUR
AU  - Senćanski, Jelena
AU  - Bajuk-Bogdanović, Danica V.
AU  - Majstorović, Divna M.
AU  - Tchernychova, Elena
AU  - Papan, Jelena
AU  - Vujković, Milica
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1457
AB  - Several spent Li-ion batteries were manually dismantled and their components were uncurled and separated. The chemical composition of each batterys component was determined by atomic absorption spectroscopy. Among several ways to separate cathode material from the collector, the alkali dissolution treatment was selected as the most effective one. After both complete separation and acid leaching steps, the co-precipitation method, followed by a thermal treatment (700 degrees C or 850 degrees C), was used to resynthesize cathode material LiCo0.415Mn0.435Ni0.15O2. Its structure and morphology were characterized by XRD, Raman spectroscopy and SEM-EDS methods. The electrochemical behavior of recycled cathode materials was examined by cyclic voltammetry and chronopotentiometry in both LiNO3 and NaNO3 aqueous solutions. High sodium storage capacity, amounting to 93 mAh g(-1), was measured galvanostatically at a relatively high current of 100 mA g(-1). Initial lithium intercalation capacity of 64 mAh was determined potentiodynamically at very high scan rate of 20 mV s(-1) (similar to 40 C). Somewhat lower initial capacity of 30 mAh g(-1), but much lower capacity fade on cycling, was found for sodium intercalation at the same scan rate. The differences in the Li and Na charge storage capability were explained in terms of ion rearrangement during charging/discharging processes. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Journal of Power Sources
T1  - The synthesis of Li(Co-Mn-Ni)O-2 cathode material from spent-Li ion batteries and the proof of its functionality in aqueous lithium and sodium electrolytic solutions
VL  - 342
SP  - 690
EP  - 703
DO  - 10.1016/j.jpowsour.2016.12.115
ER  - 

@article{
author = "Senćanski, Jelena and Bajuk-Bogdanović, Danica V. and Majstorović, Divna M. and Tchernychova, Elena and Papan, Jelena and Vujković, Milica",
year = "2017",
abstract = "Several spent Li-ion batteries were manually dismantled and their components were uncurled and separated. The chemical composition of each batterys component was determined by atomic absorption spectroscopy. Among several ways to separate cathode material from the collector, the alkali dissolution treatment was selected as the most effective one. After both complete separation and acid leaching steps, the co-precipitation method, followed by a thermal treatment (700 degrees C or 850 degrees C), was used to resynthesize cathode material LiCo0.415Mn0.435Ni0.15O2. Its structure and morphology were characterized by XRD, Raman spectroscopy and SEM-EDS methods. The electrochemical behavior of recycled cathode materials was examined by cyclic voltammetry and chronopotentiometry in both LiNO3 and NaNO3 aqueous solutions. High sodium storage capacity, amounting to 93 mAh g(-1), was measured galvanostatically at a relatively high current of 100 mA g(-1). Initial lithium intercalation capacity of 64 mAh was determined potentiodynamically at very high scan rate of 20 mV s(-1) (similar to 40 C). Somewhat lower initial capacity of 30 mAh g(-1), but much lower capacity fade on cycling, was found for sodium intercalation at the same scan rate. The differences in the Li and Na charge storage capability were explained in terms of ion rearrangement during charging/discharging processes. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Journal of Power Sources",
title = "The synthesis of Li(Co-Mn-Ni)O-2 cathode material from spent-Li ion batteries and the proof of its functionality in aqueous lithium and sodium electrolytic solutions",
volume = "342",
pages = "690-703",
doi = "10.1016/j.jpowsour.2016.12.115"
}

Senćanski, J., Bajuk-Bogdanović, D. V., Majstorović, D. M., Tchernychova, E., Papan, J.,& Vujković, M.. (2017). The synthesis of Li(Co-Mn-Ni)O-2 cathode material from spent-Li ion batteries and the proof of its functionality in aqueous lithium and sodium electrolytic solutions. in Journal of Power Sources, 342, 690-703.
https://doi.org/10.1016/j.jpowsour.2016.12.115

Senćanski J, Bajuk-Bogdanović DV, Majstorović DM, Tchernychova E, Papan J, Vujković M. The synthesis of Li(Co-Mn-Ni)O-2 cathode material from spent-Li ion batteries and the proof of its functionality in aqueous lithium and sodium electrolytic solutions. in Journal of Power Sources. 2017;342:690-703.
doi:10.1016/j.jpowsour.2016.12.115 .

Senćanski, Jelena, Bajuk-Bogdanović, Danica V., Majstorović, Divna M., Tchernychova, Elena, Papan, Jelena, Vujković, Milica, "The synthesis of Li(Co-Mn-Ni)O-2 cathode material from spent-Li ion batteries and the proof of its functionality in aqueous lithium and sodium electrolytic solutions" in Journal of Power Sources, 342 (2017):690-703,
https://doi.org/10.1016/j.jpowsour.2016.12.115 . .

TY  - JOUR
AU  - Papan, Jelena
AU  - Vuković, Katarina
AU  - Ahrenkiel, Scott Phillip
AU  - Jovanović, Dragana J.
AU  - Dramićanin, Miroslav
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1586
AB  - Nanocrystalline Y2-xEuxZr2O7 (0 LT = x LT = 1) phosphor particles were prepared by polymer facilitated combustion and subsequent calcination at 800 degrees C. The thorough study of Eu-concentration influence on particles structure, morphology and luminescence is presented. This type of synthesis provides particles of similar to 5 nm in diameter, which crystallize in a defect fluorite structure (space group Fm-3m), and where each particle consists of a single crystallite, as revealed by X-ray diffraction and high-resolution transmission electron microscopy. With the increase of Eu concentration, the unit-cell parameter slightly increases to accommodate larger Eu3+ ions at sites of smaller Y3+, while the shape and size of particles remain the same. Analysis of emission intensity and decay dependence on Eu concentration showed that this host material could be heavily doped with Eu since concentration quenching of emission occurs at high Eu content of 25-30 at.% (with respect to Y ions). The critical distance for energy transfer between Eu ions is estimated to 10.28 A and dipole-quadrupole interaction is found as the dominant mechanism responsible for the concentration quenching of emission. Radiative and non-radiative transition rates, the quantum efficiency of emission, Omega-intensity parameters, and branching ratios of Eu3+ emission are calculated for nanocrystals of all doping concentrations. It is found that more to-the-point expression 86% of emission comes from D-5(0) - GT F-7(2) and D-5(0) - GT F-7(1) transitions. Therefore, this phosphor emits pure red light with (0.661, 0.338) CIE color coordinates. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Detailed study of structural and luminescent properties of Y2-xEuxZr2O7 (0 LT = x LT = 1) nanophosphors
VL  - 712
SP  - 437
EP  - 444
DO  - 10.1016/j.jallcom.2017.04.139
ER  - 

@article{
author = "Papan, Jelena and Vuković, Katarina and Ahrenkiel, Scott Phillip and Jovanović, Dragana J. and Dramićanin, Miroslav",
year = "2017",
abstract = "Nanocrystalline Y2-xEuxZr2O7 (0 LT = x LT = 1) phosphor particles were prepared by polymer facilitated combustion and subsequent calcination at 800 degrees C. The thorough study of Eu-concentration influence on particles structure, morphology and luminescence is presented. This type of synthesis provides particles of similar to 5 nm in diameter, which crystallize in a defect fluorite structure (space group Fm-3m), and where each particle consists of a single crystallite, as revealed by X-ray diffraction and high-resolution transmission electron microscopy. With the increase of Eu concentration, the unit-cell parameter slightly increases to accommodate larger Eu3+ ions at sites of smaller Y3+, while the shape and size of particles remain the same. Analysis of emission intensity and decay dependence on Eu concentration showed that this host material could be heavily doped with Eu since concentration quenching of emission occurs at high Eu content of 25-30 at.% (with respect to Y ions). The critical distance for energy transfer between Eu ions is estimated to 10.28 A and dipole-quadrupole interaction is found as the dominant mechanism responsible for the concentration quenching of emission. Radiative and non-radiative transition rates, the quantum efficiency of emission, Omega-intensity parameters, and branching ratios of Eu3+ emission are calculated for nanocrystals of all doping concentrations. It is found that more to-the-point expression 86% of emission comes from D-5(0) - GT F-7(2) and D-5(0) - GT F-7(1) transitions. Therefore, this phosphor emits pure red light with (0.661, 0.338) CIE color coordinates. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Detailed study of structural and luminescent properties of Y2-xEuxZr2O7 (0 LT = x LT = 1) nanophosphors",
volume = "712",
pages = "437-444",
doi = "10.1016/j.jallcom.2017.04.139"
}

Papan, J., Vuković, K., Ahrenkiel, S. P., Jovanović, D. J.,& Dramićanin, M.. (2017). Detailed study of structural and luminescent properties of Y2-xEuxZr2O7 (0 LT = x LT = 1) nanophosphors. in Journal of Alloys and Compounds, 712, 437-444.
https://doi.org/10.1016/j.jallcom.2017.04.139

Papan J, Vuković K, Ahrenkiel SP, Jovanović DJ, Dramićanin M. Detailed study of structural and luminescent properties of Y2-xEuxZr2O7 (0 LT = x LT = 1) nanophosphors. in Journal of Alloys and Compounds. 2017;712:437-444.
doi:10.1016/j.jallcom.2017.04.139 .

Papan, Jelena, Vuković, Katarina, Ahrenkiel, Scott Phillip, Jovanović, Dragana J., Dramićanin, Miroslav, "Detailed study of structural and luminescent properties of Y2-xEuxZr2O7 (0 LT = x LT = 1) nanophosphors" in Journal of Alloys and Compounds, 712 (2017):437-444,
https://doi.org/10.1016/j.jallcom.2017.04.139 . .