TY  - JOUR
AU  - Todorović, Ana
AU  - Bobić, Katarina
AU  - Veljković, Filip
AU  - Pejić, Snežana
AU  - Glumac, Sofija
AU  - Stanković, Sanja
AU  - Milovanović, Tijana
AU  - Vukoje, Ivana
AU  - Nedeljković, Jovan
AU  - Radojević Škodrić, Sanja
AU  - Pajović, Snežana B.
AU  - Drakulić, Dunja
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13090
AB  - Nanoparticles (NPs), a distinct class of particles ranging in size from 1 to 100 nm, are one of the most promising technologies of the 21st century, and titanium dioxide NPs (TiO2 NPs) are among the most widely produced and used NPs globally. The increased application of TiO2 NPs raises concerns regarding their global safety and risks of exposure. Many animal studies have reported the accumulation of TiO2 NPs in female reproductive organs; however, evidence of the resultant toxicity remains ambiguous. Since the surface area and chemical modifications of NPs can significantly change their cytotoxicity, we aimed to compare the toxic effects of pristine TiO2 powder with surface-modified TiO2 powders with salicylic acid (TiO2/SA) and 5-aminosalicylic acid (TiO2/5-ASA) on the ovaries, oviducts, and uterus on the 14th day following acute oral treatment. The results, based on alterations in food and water intake, body mass, organ-to-body mass ratio, hormonal status, histological features of tissues of interest, and antioxidant parameters, suggest that the modification with 5-ASA can mitigate some of the observed toxic effects of TiO2 powder and encourage future investigations to create NPs that can potentially reduce the harmful effects of TiO2 NPs while preserving their positive impacts.
T2  - Antioxidants
T1  - Comparable Toxicity of Surface-Modified TiO2 Nanoparticles: An In Vivo Experimental Study on Reproductive Toxicity in Rats
VL  - 13
IS  - 2
SP  - 231
DO  - 10.3390/antiox13020231
ER  - 

@article{
author = "Todorović, Ana and Bobić, Katarina and Veljković, Filip and Pejić, Snežana and Glumac, Sofija and Stanković, Sanja and Milovanović, Tijana and Vukoje, Ivana and Nedeljković, Jovan and Radojević Škodrić, Sanja and Pajović, Snežana B. and Drakulić, Dunja",
year = "2024",
abstract = "Nanoparticles (NPs), a distinct class of particles ranging in size from 1 to 100 nm, are one of the most promising technologies of the 21st century, and titanium dioxide NPs (TiO2 NPs) are among the most widely produced and used NPs globally. The increased application of TiO2 NPs raises concerns regarding their global safety and risks of exposure. Many animal studies have reported the accumulation of TiO2 NPs in female reproductive organs; however, evidence of the resultant toxicity remains ambiguous. Since the surface area and chemical modifications of NPs can significantly change their cytotoxicity, we aimed to compare the toxic effects of pristine TiO2 powder with surface-modified TiO2 powders with salicylic acid (TiO2/SA) and 5-aminosalicylic acid (TiO2/5-ASA) on the ovaries, oviducts, and uterus on the 14th day following acute oral treatment. The results, based on alterations in food and water intake, body mass, organ-to-body mass ratio, hormonal status, histological features of tissues of interest, and antioxidant parameters, suggest that the modification with 5-ASA can mitigate some of the observed toxic effects of TiO2 powder and encourage future investigations to create NPs that can potentially reduce the harmful effects of TiO2 NPs while preserving their positive impacts.",
journal = "Antioxidants",
title = "Comparable Toxicity of Surface-Modified TiO2 Nanoparticles: An In Vivo Experimental Study on Reproductive Toxicity in Rats",
volume = "13",
number = "2",
pages = "231",
doi = "10.3390/antiox13020231"
}

Todorović, A., Bobić, K., Veljković, F., Pejić, S., Glumac, S., Stanković, S., Milovanović, T., Vukoje, I., Nedeljković, J., Radojević Škodrić, S., Pajović, S. B.,& Drakulić, D.. (2024). Comparable Toxicity of Surface-Modified TiO2 Nanoparticles: An In Vivo Experimental Study on Reproductive Toxicity in Rats. in Antioxidants, 13(2), 231.
https://doi.org/10.3390/antiox13020231

Todorović A, Bobić K, Veljković F, Pejić S, Glumac S, Stanković S, Milovanović T, Vukoje I, Nedeljković J, Radojević Škodrić S, Pajović SB, Drakulić D. Comparable Toxicity of Surface-Modified TiO2 Nanoparticles: An In Vivo Experimental Study on Reproductive Toxicity in Rats. in Antioxidants. 2024;13(2):231.
doi:10.3390/antiox13020231 .

Todorović, Ana, Bobić, Katarina, Veljković, Filip, Pejić, Snežana, Glumac, Sofija, Stanković, Sanja, Milovanović, Tijana, Vukoje, Ivana, Nedeljković, Jovan, Radojević Škodrić, Sanja, Pajović, Snežana B., Drakulić, Dunja, "Comparable Toxicity of Surface-Modified TiO2 Nanoparticles: An In Vivo Experimental Study on Reproductive Toxicity in Rats" in Antioxidants, 13, no. 2 (2024):231,
https://doi.org/10.3390/antiox13020231 . .

TY  - JOUR
AU  - Sredojević, Dušan
AU  - Vukoje, Ivana
AU  - Trpkov, Đorđe
AU  - Brothers, Edward N.
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12995
AB  - In addition to providing a sustainable route to green alternative energy and chemical supplies from a cheap and abundant carbon source, recycling CO2 offers an excellent way to reduce net anthropogenic global CO2 emissions. This can be achieved via catalysis on 2D materials. These materials are atomically thin and have unique electrical and catalytic properties compared to bigger nanoparticles and conventional bulk catalysts, opening a new arena in catalysis. This paper examines the efficacy of hexagonal boron nitride (h-BN) lattices with vacancy defects for CO2 electroreduction (CO2RR). We conducted in-depth investigations on different CO2RR electrocatalytic reaction pathways on various h-BN vacancy sites using a computational hydrogen model (CHE). It was shown that CO binds to h-BN vacancies sufficiently to ensure additional electron transfer processes, leading to higher-order reduction products. For mono-atomic defects VN (removed nitrogen), the electrochemical path of (H+ + e−) pair transfers that would lead to the formation of methanol is most favorable with a limiting potential of 1.21 V. In contrast, the reaction pathways via VB (removed boron) imposes much higher thermodynamic barriers for the formation of all relevant species. With a divacancy VBN, the hydrogen evolution reaction (HER) would be the most probable process due to the low rate-determining barrier of 0.69 eV. On the tetravacancy defects VB3N the pathways toward the formation of both CH4 and CH3OH impose a limiting potential of 0.85 V. At the same time, the HER is suppressed by requiring much higher energy (2.15 eV). Modeling the edges of h-BN reveals that N-terminated zigzag conformation would impose the same limiting potential for the formation of methanol and methane (1.73 V), simultaneously suppressing the HER (3.47 V). At variance, the armchair conformation favors the HER, with a rate-determining barrier of 1.70 eV. Hence, according to our calculations, VB3N and VN are the most appropriate vacancy defects for catalyzing CO2 electroreduction reactions.
T2  - Physical Chemistry Chemical Physics
T1  - A DFT study of CO2 electroreduction catalyzed by hexagonal boron-nitride nanosheets with vacancy defects
VL  - 26
IS  - 10
SP  - 8356
EP  - 8365
DO  - 10.1039/D3CP06186H
ER  - 

@article{
author = "Sredojević, Dušan and Vukoje, Ivana and Trpkov, Đorđe and Brothers, Edward N.",
year = "2024",
abstract = "In addition to providing a sustainable route to green alternative energy and chemical supplies from a cheap and abundant carbon source, recycling CO2 offers an excellent way to reduce net anthropogenic global CO2 emissions. This can be achieved via catalysis on 2D materials. These materials are atomically thin and have unique electrical and catalytic properties compared to bigger nanoparticles and conventional bulk catalysts, opening a new arena in catalysis. This paper examines the efficacy of hexagonal boron nitride (h-BN) lattices with vacancy defects for CO2 electroreduction (CO2RR). We conducted in-depth investigations on different CO2RR electrocatalytic reaction pathways on various h-BN vacancy sites using a computational hydrogen model (CHE). It was shown that CO binds to h-BN vacancies sufficiently to ensure additional electron transfer processes, leading to higher-order reduction products. For mono-atomic defects VN (removed nitrogen), the electrochemical path of (H+ + e−) pair transfers that would lead to the formation of methanol is most favorable with a limiting potential of 1.21 V. In contrast, the reaction pathways via VB (removed boron) imposes much higher thermodynamic barriers for the formation of all relevant species. With a divacancy VBN, the hydrogen evolution reaction (HER) would be the most probable process due to the low rate-determining barrier of 0.69 eV. On the tetravacancy defects VB3N the pathways toward the formation of both CH4 and CH3OH impose a limiting potential of 0.85 V. At the same time, the HER is suppressed by requiring much higher energy (2.15 eV). Modeling the edges of h-BN reveals that N-terminated zigzag conformation would impose the same limiting potential for the formation of methanol and methane (1.73 V), simultaneously suppressing the HER (3.47 V). At variance, the armchair conformation favors the HER, with a rate-determining barrier of 1.70 eV. Hence, according to our calculations, VB3N and VN are the most appropriate vacancy defects for catalyzing CO2 electroreduction reactions.",
journal = "Physical Chemistry Chemical Physics",
title = "A DFT study of CO2 electroreduction catalyzed by hexagonal boron-nitride nanosheets with vacancy defects",
volume = "26",
number = "10",
pages = "8356-8365",
doi = "10.1039/D3CP06186H"
}

Sredojević, D., Vukoje, I., Trpkov, Đ.,& Brothers, E. N.. (2024). A DFT study of CO2 electroreduction catalyzed by hexagonal boron-nitride nanosheets with vacancy defects. in Physical Chemistry Chemical Physics, 26(10), 8356-8365.
https://doi.org/10.1039/D3CP06186H

Sredojević D, Vukoje I, Trpkov Đ, Brothers EN. A DFT study of CO2 electroreduction catalyzed by hexagonal boron-nitride nanosheets with vacancy defects. in Physical Chemistry Chemical Physics. 2024;26(10):8356-8365.
doi:10.1039/D3CP06186H .

Sredojević, Dušan, Vukoje, Ivana, Trpkov, Đorđe, Brothers, Edward N., "A DFT study of CO2 electroreduction catalyzed by hexagonal boron-nitride nanosheets with vacancy defects" in Physical Chemistry Chemical Physics, 26, no. 10 (2024):8356-8365,
https://doi.org/10.1039/D3CP06186H . .

TY  - CONF
AU  - Nikolić, Nikolina
AU  - Spasojević, Jelena
AU  - Stamenović, Una
AU  - Vukoje, Ivana
AU  - Tadić, Julijana
AU  - Vodnik, Vesna
AU  - Kačarević-Popović, Zorica
AU  - Radosavljević, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12226
PB  - Niš : RAD Centre
C3  - RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
T1  - Gamma irradiation-induced synthesis and characterization of bi-layered Au-(PNiPAAm/PVA) hydrogel nanocomposites
SP  - 85
EP  - 85
DO  - 10.21175/rad.abstr.book.2023.19.6
ER  - 

@conference{
author = "Nikolić, Nikolina and Spasojević, Jelena and Stamenović, Una and Vukoje, Ivana and Tadić, Julijana and Vodnik, Vesna and Kačarević-Popović, Zorica and Radosavljević, Aleksandra",
year = "2023",
publisher = "Niš : RAD Centre",
journal = "RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts",
title = "Gamma irradiation-induced synthesis and characterization of bi-layered Au-(PNiPAAm/PVA) hydrogel nanocomposites",
pages = "85-85",
doi = "10.21175/rad.abstr.book.2023.19.6"
}

Nikolić, N., Spasojević, J., Stamenović, U., Vukoje, I., Tadić, J., Vodnik, V., Kačarević-Popović, Z.,& Radosavljević, A.. (2023). Gamma irradiation-induced synthesis and characterization of bi-layered Au-(PNiPAAm/PVA) hydrogel nanocomposites. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
Niš : RAD Centre., 85-85.
https://doi.org/10.21175/rad.abstr.book.2023.19.6

Nikolić N, Spasojević J, Stamenović U, Vukoje I, Tadić J, Vodnik V, Kačarević-Popović Z, Radosavljević A. Gamma irradiation-induced synthesis and characterization of bi-layered Au-(PNiPAAm/PVA) hydrogel nanocomposites. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts. 2023;:85-85.
doi:10.21175/rad.abstr.book.2023.19.6 .

Nikolić, Nikolina, Spasojević, Jelena, Stamenović, Una, Vukoje, Ivana, Tadić, Julijana, Vodnik, Vesna, Kačarević-Popović, Zorica, Radosavljević, Aleksandra, "Gamma irradiation-induced synthesis and characterization of bi-layered Au-(PNiPAAm/PVA) hydrogel nanocomposites" in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts (2023):85-85,
https://doi.org/10.21175/rad.abstr.book.2023.19.6 . .

TY  - CONF
AU  - Spasojević, Jelena
AU  - Vukoje, Ivana
AU  - Nikolić, Nikolina
AU  - Tadić, Julijana
AU  - Milošević, Milica
AU  - Vodnik, Vesna
AU  - Radosavljević, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11595
AB  - Hydrogels  have  unique  properties  and  many  potential  applications,  particularly  in  medicine and biotechnology. Gel porosity and swelling properties, stability, and biocompatibility are charac-teristics that are widely variable and easily adjusted. Stimuli-responsive or intelligent hydrogels are a  class  of  thesematerials  that  shows  a  significant  response  to  small  changes  in  the  surrounding environment.  Poly(N-isopropylacrylamide)  (PNiPAAm)  is  the  best-known  thermosensitive  polymer with a well-defined volume phase transition temperature (VPTT) around 32C. On theother hand, silver  nanoparticles  (AgNPs)  have  been  the  subject  of  intense  interest  due  to  their  size-dependent optical,  catalytic,  and  electronic  properties  as  well  as  remarkable  antimicrobial  potential.  Within the last decade, scientists have demonstrated that anisotropic AgNPs can be synthesized in a controlled  manner  and  that  these  materials  exhibit distinctively  different  physicochemical  properties from  their  spherical  counterparts.  A  significant  challenge  that  scientists  face  is  establishing  how thesenanoparticles  can  be  used  in  a  wider  spectrum  of  practical  applications.  Therefore,  we  pre-sent  a  simple,  straightforward  two-step  synthesis  of  AgNPs/PNiPAAm  hydrogel  nanocomposites that  includes  the  chemical  formation  of  both  spherical  and  triangular  AgNPs,  followed  by  gamma irradiation-induced  PNiPAAm  crosslinking  in  the  presence  of  nanoparticles.  The  gamma  irradia-tion technique merges sterilization and synthesis in a single technological step, optimizing the pro-cess  and  opening  up  a  wide  range  of  innovative  biomedical  applications.  The  formation  of  stable and uniformly distributed AgNPs in the polymer was confirmed by UV-VIS spectroscopy, while the network porous sponge-like structure was observed by SEM analysis. Physicochemical characteri-zation  was  performed  by  examining  the  swelling  and  deswelling  processes  in  water  at  25C  and 48C,  respectively.  In  addition,  AgNPs  were  shown  to  have  an  effect  on  VPTT  values.  Our  main goal is to investigate how different morphologies of AgNPs affect the physicochemicalproperties of nanocomposite samples, considering the potential applications and the ongoing need for the wide-spread use of biocompatible materials
AB  - Hidrogelovi su materijali koji poseduju specifičnu poroznost, stabilnost, biokompatibilnost i sposobnost apsorpcije okolne tečnosti, kao i svojstva koja su promenljiva i lako podesiva širokom spektru primena, naročito u oblasti medicine i biotehnologije. Posebno je interesantna oblast “inteligentnih“ hidrogelova, odnosno materijala koji reaguju na spoljašnje stimulanse i pokazuju značajanu fizičku ili hemijsku promenu pri malim promenama u okruženju. Poli(N-izopropilakrilamid) (PNiPAAm) je najpoznatiji termosenzitivni polimer sa jasno definisanom temperaturom faznog prelaza (VPTT) od oko 32°C. S druge strane, nanočestice srebra (AgNPs) poseduju optička, katalitička i električna svojstva koja se mogu modifikovati promenom njihove veličine i oblika a imaju i izražen antibakterijski potencijal, pa su stoga, poslednjih decenija intenzivno proučavane. Pokazano je da se anizotropne nanočestice srebra mogu kontrolisano sintetisati sa fizičkohemijskim svojstvima različitim od sfernih analoga, pri čemu su značajna istraživanja usmerena na njihovu praktičnu primenu. Zbog svega navedenog, u okviru ovog istraživanja biće izvedena jednostavna dvostepena sinteza AgNPs/PNiPAAm hidrogel nanokompozita koja uključuje hemijsko formiranje sfernih i trouglastih AgNPs u prvom koraku, a zatim gama-indukovano umrežavanje NiPAAm-a u prisustvu ovih AgNPs. Tehnika gama zračenja objedinjuje sterilizaciju i sintezu u jednom tehnološkom koraku čime se proces optimizuje i otvara širok spektar inovativnih biomedicinskih primena. Formiranje stabilnih i uniformno distribuiranih AgNPs unutar matrice hidrogela potvrđeno je UV-Vis spektroskopijom, a porozna sunđerasta struktura polimerne mreže SEM analizom. Fizičkohemijska karakterizacija izvršena je i ispitivanjem procesa bubrenja i kontrahovanja u vodi na 25°C i 48°C, redom. Pored toga, pokazano je da prisustvo AgNPs utiče na vrednosti temperature faznog prelaza polimera. Osnovni cilj ovog istraživanja je ispitivanje uticaja različite morfologije AgNPs na fizičkohemijska svojstva sintetisanih nanokompozita, imajući u vidu njihovu potencijalnu primenu i stalnu potrebu za širokom upotrebom biokompatibilnih materijala.
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova
T1  - The effect of silver nanoparticle shape on the physicochemical properties of a poly(n-isopropylacrylamide) hydrogel nanocomposites
T1  - Uticaj oblika nanočestica srebra na fizičkohemijska svojstva poli(n-izopropilakrilamid) hidrogel nanokompozita
SP  - 197
EP  - 206
DO  - 10.24094/ptk.023.197
ER  - 

@conference{
author = "Spasojević, Jelena and Vukoje, Ivana and Nikolić, Nikolina and Tadić, Julijana and Milošević, Milica and Vodnik, Vesna and Radosavljević, Aleksandra",
year = "2023",
abstract = "Hydrogels  have  unique  properties  and  many  potential  applications,  particularly  in  medicine and biotechnology. Gel porosity and swelling properties, stability, and biocompatibility are charac-teristics that are widely variable and easily adjusted. Stimuli-responsive or intelligent hydrogels are a  class  of  thesematerials  that  shows  a  significant  response  to  small  changes  in  the  surrounding environment.  Poly(N-isopropylacrylamide)  (PNiPAAm)  is  the  best-known  thermosensitive  polymer with a well-defined volume phase transition temperature (VPTT) around 32C. On theother hand, silver  nanoparticles  (AgNPs)  have  been  the  subject  of  intense  interest  due  to  their  size-dependent optical,  catalytic,  and  electronic  properties  as  well  as  remarkable  antimicrobial  potential.  Within the last decade, scientists have demonstrated that anisotropic AgNPs can be synthesized in a controlled  manner  and  that  these  materials  exhibit distinctively  different  physicochemical  properties from  their  spherical  counterparts.  A  significant  challenge  that  scientists  face  is  establishing  how thesenanoparticles  can  be  used  in  a  wider  spectrum  of  practical  applications.  Therefore,  we  pre-sent  a  simple,  straightforward  two-step  synthesis  of  AgNPs/PNiPAAm  hydrogel  nanocomposites that  includes  the  chemical  formation  of  both  spherical  and  triangular  AgNPs,  followed  by  gamma irradiation-induced  PNiPAAm  crosslinking  in  the  presence  of  nanoparticles.  The  gamma  irradia-tion technique merges sterilization and synthesis in a single technological step, optimizing the pro-cess  and  opening  up  a  wide  range  of  innovative  biomedical  applications.  The  formation  of  stable and uniformly distributed AgNPs in the polymer was confirmed by UV-VIS spectroscopy, while the network porous sponge-like structure was observed by SEM analysis. Physicochemical characteri-zation  was  performed  by  examining  the  swelling  and  deswelling  processes  in  water  at  25C  and 48C,  respectively.  In  addition,  AgNPs  were  shown  to  have  an  effect  on  VPTT  values.  Our  main goal is to investigate how different morphologies of AgNPs affect the physicochemicalproperties of nanocomposite samples, considering the potential applications and the ongoing need for the wide-spread use of biocompatible materials, Hidrogelovi su materijali koji poseduju specifičnu poroznost, stabilnost, biokompatibilnost i sposobnost apsorpcije okolne tečnosti, kao i svojstva koja su promenljiva i lako podesiva širokom spektru primena, naročito u oblasti medicine i biotehnologije. Posebno je interesantna oblast “inteligentnih“ hidrogelova, odnosno materijala koji reaguju na spoljašnje stimulanse i pokazuju značajanu fizičku ili hemijsku promenu pri malim promenama u okruženju. Poli(N-izopropilakrilamid) (PNiPAAm) je najpoznatiji termosenzitivni polimer sa jasno definisanom temperaturom faznog prelaza (VPTT) od oko 32°C. S druge strane, nanočestice srebra (AgNPs) poseduju optička, katalitička i električna svojstva koja se mogu modifikovati promenom njihove veličine i oblika a imaju i izražen antibakterijski potencijal, pa su stoga, poslednjih decenija intenzivno proučavane. Pokazano je da se anizotropne nanočestice srebra mogu kontrolisano sintetisati sa fizičkohemijskim svojstvima različitim od sfernih analoga, pri čemu su značajna istraživanja usmerena na njihovu praktičnu primenu. Zbog svega navedenog, u okviru ovog istraživanja biće izvedena jednostavna dvostepena sinteza AgNPs/PNiPAAm hidrogel nanokompozita koja uključuje hemijsko formiranje sfernih i trouglastih AgNPs u prvom koraku, a zatim gama-indukovano umrežavanje NiPAAm-a u prisustvu ovih AgNPs. Tehnika gama zračenja objedinjuje sterilizaciju i sintezu u jednom tehnološkom koraku čime se proces optimizuje i otvara širok spektar inovativnih biomedicinskih primena. Formiranje stabilnih i uniformno distribuiranih AgNPs unutar matrice hidrogela potvrđeno je UV-Vis spektroskopijom, a porozna sunđerasta struktura polimerne mreže SEM analizom. Fizičkohemijska karakterizacija izvršena je i ispitivanjem procesa bubrenja i kontrahovanja u vodi na 25°C i 48°C, redom. Pored toga, pokazano je da prisustvo AgNPs utiče na vrednosti temperature faznog prelaza polimera. Osnovni cilj ovog istraživanja je ispitivanje uticaja različite morfologije AgNPs na fizičkohemijska svojstva sintetisanih nanokompozita, imajući u vidu njihovu potencijalnu primenu i stalnu potrebu za širokom upotrebom biokompatibilnih materijala.",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova",
title = "The effect of silver nanoparticle shape on the physicochemical properties of a poly(n-isopropylacrylamide) hydrogel nanocomposites, Uticaj oblika nanočestica srebra na fizičkohemijska svojstva poli(n-izopropilakrilamid) hidrogel nanokompozita",
pages = "197-206",
doi = "10.24094/ptk.023.197"
}

Spasojević, J., Vukoje, I., Nikolić, N., Tadić, J., Milošević, M., Vodnik, V.,& Radosavljević, A.. (2023). The effect of silver nanoparticle shape on the physicochemical properties of a poly(n-isopropylacrylamide) hydrogel nanocomposites. in 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 197-206.
https://doi.org/10.24094/ptk.023.197

Spasojević J, Vukoje I, Nikolić N, Tadić J, Milošević M, Vodnik V, Radosavljević A. The effect of silver nanoparticle shape on the physicochemical properties of a poly(n-isopropylacrylamide) hydrogel nanocomposites. in 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova. 2023;:197-206.
doi:10.24094/ptk.023.197 .

Spasojević, Jelena, Vukoje, Ivana, Nikolić, Nikolina, Tadić, Julijana, Milošević, Milica, Vodnik, Vesna, Radosavljević, Aleksandra, "The effect of silver nanoparticle shape on the physicochemical properties of a poly(n-isopropylacrylamide) hydrogel nanocomposites" in 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova (2023):197-206,
https://doi.org/10.24094/ptk.023.197 . .

TY  - CONF
AU  - Vukoje, Ivana
AU  - Spasojević, Jelena
AU  - Nikolić, Nikolina
AU  - Milošević, Milica V.
AU  - Vodnik, Vesna
AU  - Radosavljević, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12198
AB  - Hydrogels possess distinctive characteristics that can be tailored to meet specific needs, especially in the field of biosciences, which is continuously expanding and advancing. Adjustability of gel porosity, followed by tunability of swelling properties, environmental responsiveness, and stability, are properties that are easily adjusted, offering researchers and engineers the flexibility to fine-tune these properties to suit the specific requirements of diverse applications. As a result of environmental responsivity, one class of these materials emerged, referred to as stimuli-responsive or smart hydrogels. Such hydrogels can change their properties in response to specific external stimuli or environmental conditions in a controlled and reversible manner. Depending on the specific type of smart hydrogel, this feature can enable targeted drug delivery, tissue engineering, and controlled release systems while maintaining their biocompatibility. Poly(N-isopropylacrylamide) (PNiPAAm) is a thermosensitive polymer with a well-defined volume phase transition temperature (VPTT) around 32°C. Conversely, silver nanoparticles (AgNPs) continue to preserve academic interest due to their size-dependent optical, catalytic, and electronic properties, as well as their significant antimicrobial potential. One of the primary obstacles encountered by scientists is establishing the broader range of practical applications of AgNPs as well as improving the existing ones. Optimizing their properties often involves controlling size and shape, stability, and surface properties. In order to determine how anizotropic Ag NPs alter and influence the physicochemical properties of PNiPAAm we present a simple, straightforward two-step synthesis of AgNPs/PNiPAAm hydrogel nanocomposites. This method involves the chemical synthesis of both spherical and triangular AgNPs, followed by the crosslinking of PNiPAAm through gamma irradiation in the presence of nanoparticles. The validation of employing gamma irradiation is based on the fact that this technology integrates the processes of sterilization and synthesis, resulting in a consolidated technical step that enhances efficiency and enables the exploration of numerous innovative biomedical applications. The porous sponge-like structure was observed by SEM analysis, while the formation of stable and uniformly distributed AgNPs in the polymer was confirmed by UV-VIS spectroscopy. Swelling and deswelling processes were performed in water at 25C and 48C, respectively. In addition, AgNPs were shown to influence VPTT values. The primary objective of this study is to examine the correlation between various morphologies of AgNPs and the physicochemical characteristics of nanocomposite samples. This investigation considers the possible uses and the current demand for the extensive utilization of biocompatible materials.
PB  - Szeged : University of Szeged
C3  - 29th International Symposium on Analytical and Environmental Problems : Proceedings
T1  - Characterization of poly(N-izopropylacrylamide) hydrogel nanocomposites influenced by anizotropic silver nanoparticles
SP  - 377
EP  - 377
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12198
ER  - 

@conference{
author = "Vukoje, Ivana and Spasojević, Jelena and Nikolić, Nikolina and Milošević, Milica V. and Vodnik, Vesna and Radosavljević, Aleksandra",
year = "2023",
abstract = "Hydrogels possess distinctive characteristics that can be tailored to meet specific needs, especially in the field of biosciences, which is continuously expanding and advancing. Adjustability of gel porosity, followed by tunability of swelling properties, environmental responsiveness, and stability, are properties that are easily adjusted, offering researchers and engineers the flexibility to fine-tune these properties to suit the specific requirements of diverse applications. As a result of environmental responsivity, one class of these materials emerged, referred to as stimuli-responsive or smart hydrogels. Such hydrogels can change their properties in response to specific external stimuli or environmental conditions in a controlled and reversible manner. Depending on the specific type of smart hydrogel, this feature can enable targeted drug delivery, tissue engineering, and controlled release systems while maintaining their biocompatibility. Poly(N-isopropylacrylamide) (PNiPAAm) is a thermosensitive polymer with a well-defined volume phase transition temperature (VPTT) around 32°C. Conversely, silver nanoparticles (AgNPs) continue to preserve academic interest due to their size-dependent optical, catalytic, and electronic properties, as well as their significant antimicrobial potential. One of the primary obstacles encountered by scientists is establishing the broader range of practical applications of AgNPs as well as improving the existing ones. Optimizing their properties often involves controlling size and shape, stability, and surface properties. In order to determine how anizotropic Ag NPs alter and influence the physicochemical properties of PNiPAAm we present a simple, straightforward two-step synthesis of AgNPs/PNiPAAm hydrogel nanocomposites. This method involves the chemical synthesis of both spherical and triangular AgNPs, followed by the crosslinking of PNiPAAm through gamma irradiation in the presence of nanoparticles. The validation of employing gamma irradiation is based on the fact that this technology integrates the processes of sterilization and synthesis, resulting in a consolidated technical step that enhances efficiency and enables the exploration of numerous innovative biomedical applications. The porous sponge-like structure was observed by SEM analysis, while the formation of stable and uniformly distributed AgNPs in the polymer was confirmed by UV-VIS spectroscopy. Swelling and deswelling processes were performed in water at 25C and 48C, respectively. In addition, AgNPs were shown to influence VPTT values. The primary objective of this study is to examine the correlation between various morphologies of AgNPs and the physicochemical characteristics of nanocomposite samples. This investigation considers the possible uses and the current demand for the extensive utilization of biocompatible materials.",
publisher = "Szeged : University of Szeged",
journal = "29th International Symposium on Analytical and Environmental Problems : Proceedings",
title = "Characterization of poly(N-izopropylacrylamide) hydrogel nanocomposites influenced by anizotropic silver nanoparticles",
pages = "377-377",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12198"
}

Vukoje, I., Spasojević, J., Nikolić, N., Milošević, M. V., Vodnik, V.,& Radosavljević, A.. (2023). Characterization of poly(N-izopropylacrylamide) hydrogel nanocomposites influenced by anizotropic silver nanoparticles. in 29th International Symposium on Analytical and Environmental Problems : Proceedings
Szeged : University of Szeged., 377-377.
https://hdl.handle.net/21.15107/rcub_vinar_12198

Vukoje I, Spasojević J, Nikolić N, Milošević MV, Vodnik V, Radosavljević A. Characterization of poly(N-izopropylacrylamide) hydrogel nanocomposites influenced by anizotropic silver nanoparticles. in 29th International Symposium on Analytical and Environmental Problems : Proceedings. 2023;:377-377.
https://hdl.handle.net/21.15107/rcub_vinar_12198 .

Vukoje, Ivana, Spasojević, Jelena, Nikolić, Nikolina, Milošević, Milica V., Vodnik, Vesna, Radosavljević, Aleksandra, "Characterization of poly(N-izopropylacrylamide) hydrogel nanocomposites influenced by anizotropic silver nanoparticles" in 29th International Symposium on Analytical and Environmental Problems : Proceedings (2023):377-377,
https://hdl.handle.net/21.15107/rcub_vinar_12198 .

TY  - CONF
AU  - Nikolić, Nikolina
AU  - Spasojević, Jelena
AU  - Stamenović, Una
AU  - Vodnik, Vesna
AU  - Vukoje, Ivana
AU  - Kačarević-Popović, Zorica
AU  - Radosavljević, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12325
AB  - In recent years, the need for innovative materials has produced remarkable progress in the field of smart materials, with a particular focus on nanocomposite systems containing crosslinked polymer matrices (hydrogels) and metal nanoparticles. Hydrogels have become a crucial class of biomaterials due to their stable 3D porous structures, high fluid absorption capacity, similarity to biological tissues, and biocompatibility. Of particular interest are hydrogels with the ability to respond to various external stimuli (temperature, pH, light etc.), resulting in alterations of their physical and chemical characteristics. Our research focuses on the nanocomposites based on thermosensitive poly(N-isopropylacrylamide) (PNiPAAm) hydrogels and gold nanoparticles (AuNPs), with a unique emphasis on exploring the specific properties of single-layer and bi-layered systems. The insights gained from this comparative study open new possibilities for applications in drug delivery, sensors, and soft robotics. Single-layer systems consisting of active PNiPAAm hydrogel and AuNPs, were created through a combination of radiolytic and chemical procedures. Bi-layered systems feature an active Au-PNiPAAm layer, with the addition of a passive poly(vinyl alcohol) (PVA) hydrogel layer, crosslinked by the combination of freeze-thaw and radiolytic techniques. In both cases, the incorporation of spherical AuNPs within an active layer was confirmed by the presence of a characteristic surface plasmon resonance (SPR), while scanning electron microscopy (SEM) indicated the system's highly porous structure. The physicochemical properties of both single- and bi-layered systems involved the examination of their swelling and deswelling properties, as well as the volume phase transition temperature (VPTT). The incorporation of AuNPs in the PNiPAAm layer led to an increase in both swelling capacity and VPTT. Compression measurements showed that the presence of a passive layer and AuNPs significantly improved mechanical properties of nanocomposites.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Improvement of Au-poly(N-isopropylacrylamide) hydrogel nanocomposites: Singlelayer vs. bi-layered systems
SP  - 54
EP  - 54
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12325
ER  - 

@conference{
author = "Nikolić, Nikolina and Spasojević, Jelena and Stamenović, Una and Vodnik, Vesna and Vukoje, Ivana and Kačarević-Popović, Zorica and Radosavljević, Aleksandra",
year = "2023",
abstract = "In recent years, the need for innovative materials has produced remarkable progress in the field of smart materials, with a particular focus on nanocomposite systems containing crosslinked polymer matrices (hydrogels) and metal nanoparticles. Hydrogels have become a crucial class of biomaterials due to their stable 3D porous structures, high fluid absorption capacity, similarity to biological tissues, and biocompatibility. Of particular interest are hydrogels with the ability to respond to various external stimuli (temperature, pH, light etc.), resulting in alterations of their physical and chemical characteristics. Our research focuses on the nanocomposites based on thermosensitive poly(N-isopropylacrylamide) (PNiPAAm) hydrogels and gold nanoparticles (AuNPs), with a unique emphasis on exploring the specific properties of single-layer and bi-layered systems. The insights gained from this comparative study open new possibilities for applications in drug delivery, sensors, and soft robotics. Single-layer systems consisting of active PNiPAAm hydrogel and AuNPs, were created through a combination of radiolytic and chemical procedures. Bi-layered systems feature an active Au-PNiPAAm layer, with the addition of a passive poly(vinyl alcohol) (PVA) hydrogel layer, crosslinked by the combination of freeze-thaw and radiolytic techniques. In both cases, the incorporation of spherical AuNPs within an active layer was confirmed by the presence of a characteristic surface plasmon resonance (SPR), while scanning electron microscopy (SEM) indicated the system's highly porous structure. The physicochemical properties of both single- and bi-layered systems involved the examination of their swelling and deswelling properties, as well as the volume phase transition temperature (VPTT). The incorporation of AuNPs in the PNiPAAm layer led to an increase in both swelling capacity and VPTT. Compression measurements showed that the presence of a passive layer and AuNPs significantly improved mechanical properties of nanocomposites.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Improvement of Au-poly(N-isopropylacrylamide) hydrogel nanocomposites: Singlelayer vs. bi-layered systems",
pages = "54-54",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12325"
}

Nikolić, N., Spasojević, J., Stamenović, U., Vodnik, V., Vukoje, I., Kačarević-Popović, Z.,& Radosavljević, A.. (2023). Improvement of Au-poly(N-isopropylacrylamide) hydrogel nanocomposites: Singlelayer vs. bi-layered systems. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 54-54.
https://hdl.handle.net/21.15107/rcub_vinar_12325

Nikolić N, Spasojević J, Stamenović U, Vodnik V, Vukoje I, Kačarević-Popović Z, Radosavljević A. Improvement of Au-poly(N-isopropylacrylamide) hydrogel nanocomposites: Singlelayer vs. bi-layered systems. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:54-54.
https://hdl.handle.net/21.15107/rcub_vinar_12325 .

Nikolić, Nikolina, Spasojević, Jelena, Stamenović, Una, Vodnik, Vesna, Vukoje, Ivana, Kačarević-Popović, Zorica, Radosavljević, Aleksandra, "Improvement of Au-poly(N-isopropylacrylamide) hydrogel nanocomposites: Singlelayer vs. bi-layered systems" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):54-54,
https://hdl.handle.net/21.15107/rcub_vinar_12325 .

TY  - CONF
AU  - Milošević, Milica
AU  - Radoičić, Marija
AU  - Ćirić-Marjanović, Gordana
AU  - Spasojević, Jelena
AU  - Vukoje, Ivana
AU  - Radosavljević, Aleksandra
AU  - Šaponjić, Zoran
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11596
AB  - A  calling  need  for  environmental  protection  is  not  abating  and  high  demands  have  been  set for  the  current  topic  that  deals  with  applied  technologies  for  removal  of  organic  pollutants.  The AOPs  appear  to  be  one  of  the  most  effective  processes,  where  heterogeneous  photocatalysis  using efficient  UV  light-harvesting  TiO2nanocrystals  has  unquestionably  become  one  of  the  most  com-monly used process for dyes degradation treatment. Limited photocatalytic efficiency of TiO2under sunlight  illumination  was  overcame  bycoupling  with  polyaniline  (PANI)  as  notably  investigated conductive polymer. Reducing the level of e-/h+recombination in TiO2and photosensitized proper-ties of PANI was the basis for creation of new functional PANI/TiO2nanocomposites. Such hybrid functional  nanomaterials  consisting  of  conductive  polymers  and  dissimilar  nanocrystals  manifest the  unique  properties,  usually  not  characteristic  of  independent  componentsbut  their  synergistic effect. Series of developed functional nanocomposites based on PANI and colloidal TiO2nanoparti-cles  (NPs)  (TP),  carbonized  PANI  and  colloidal  TiO2NPs  (TPC)  and  carbonized  PANI  and  TiO2nanotubes (NTs) (TTPC) by the efficient and harmless synthesis pathways are presented. Differently shaped  TiO2nanocrystals  are  carefully  prepared  via  sol-gel  and  hydrothermal  synthesis  and  the influence  of  their  size  and  shape  on  the  photocatalytic  efficiency  of  hybrid  nanocomposites  was evaluated. The non-carbonized PANI/TiO2nanocomposites were synthesized by the chemical oxida-tive  polymerization  of  aniline  with  ammonium  peroxydisulfate,  in  the  presence  of  selected  TiO2nanocrystals,  while  the  carbonized  class  was  obtained  in the subsequent  carbonization  process, following  the  polymerization,  in  an  inert  atmosphere  at  650  °C.  The  morphology  and  structureof these nano-based photocatalysts was determined by TEM analysis and Raman spectroscopy. Func-tionality  of  nanocomposites  was  evaluated  following  the  photocatalytic  degradation  processes  of model compoundsMethylene blue and Rhodamine B and enhanced degradation efficiencies in the used dyes were observed
AB  - Aktuelna potreba za zaštitom životne sredine ne jenjava i s tim u vezi postavljeni su visoki zahtevi vezani za tematiku primenjenih tehnologija za uklanjanje organskih zagađujućih supstanci. Ispostavlja se da napredni procesi oksidacije (engl. Advanced oxidation processes, AOPs) predstavljaju jedan od najefikasnijih procesa, među kojima heterogena fotokataliza, bazirana na upotrebi nanokristala TiO2 aktiviranih UV zračenjem, nesumnjivo predstavlja jedan od najčešće korišćenih tretmana za degradaciju organskih boja. Problem ograničene fotokatalitičke efikasnosti TiO2 pod dejstvom sunčevog zračenja može se prevazići formiranjem kompozita sa polianilinom (PANI), čija se uloga bazira na smanjenju rekombinativnih procesa e-/h+, kao i sposobnosti PANI-a da optički aktivira nanokristale TiO2, što je bila osnova za formiranje novih funkcionalnih PANI/TiO2 nanokompozita. Takvi hibridni nanomaterijali bazirani na provodnom polimeru i nanokristalima različitih oblika pokazuju jedinstvena svojstva koja najčešće nisu karakteristika pojedinačnih komponenti, već njihovog sinergističkog dejstva. Efikasnim i ekološki prihvatljivim sintezama razvijena je serija funkcionalnih nanokompozita na bazi PANI-a i koloidnih TiO2 nanočestica (NPs) (TP), karbonizovanog PANI-a i koloidnih TiO2 NPs (TPC) i karbonizovanog PANI-a i TiO2 nanotuba (NTs) (TTPC). Nanokristali TiO2 različitog oblika pažljivo su sintetisani sol-gel i hidrotermalnom metodom i procenjen je uticaj njihove veličine i oblika na fotokatalitičku efikasnost hibridnih nanokompozita. Nekarbonizovani PANI/TiO2 nanokompoziti sintetisani su hemijskom oksidativnom polimerizacijom anilina sa amonijum peroksidisulfatom, u prisustvu odabranih nanokristala TiO2, dok je karbonizovana serija uzoraka dobijena naknadnim procesom karbonizacije, prateći polimerizaciju, u inertnoj atmosferi na 650 °C. Morfologija i struktura sintetisanih fotokatalitički aktivnih sistema ispitana je TEM analizom i Ramanskom spektroskopijom. Funkcionalnost nanokompozita je procenjena prateći procese fotokatalitičke degradacije model-jedinjenja Methylene blue i Rhodamine B i primećena je povećana efikasnost degradacije testiranih organskih boja
PB  - Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku
C3  - 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova
T1  - Hybrid functional Pani/TiO2 nanocomposites for dyes degradation treatment
T1  - Hibridni funkcionalni Pani/TiO2 nanokompoziti za tretman degradacije organskih boja
SP  - 83
EP  - 89
DO  - 10.24094/ptk.023.083
ER  - 

@conference{
author = "Milošević, Milica and Radoičić, Marija and Ćirić-Marjanović, Gordana and Spasojević, Jelena and Vukoje, Ivana and Radosavljević, Aleksandra and Šaponjić, Zoran",
year = "2023",
abstract = "A  calling  need  for  environmental  protection  is  not  abating  and  high  demands  have  been  set for  the  current  topic  that  deals  with  applied  technologies  for  removal  of  organic  pollutants.  The AOPs  appear  to  be  one  of  the  most  effective  processes,  where  heterogeneous  photocatalysis  using efficient  UV  light-harvesting  TiO2nanocrystals  has  unquestionably  become  one  of  the  most  com-monly used process for dyes degradation treatment. Limited photocatalytic efficiency of TiO2under sunlight  illumination  was  overcame  bycoupling  with  polyaniline  (PANI)  as  notably  investigated conductive polymer. Reducing the level of e-/h+recombination in TiO2and photosensitized proper-ties of PANI was the basis for creation of new functional PANI/TiO2nanocomposites. Such hybrid functional  nanomaterials  consisting  of  conductive  polymers  and  dissimilar  nanocrystals  manifest the  unique  properties,  usually  not  characteristic  of  independent  componentsbut  their  synergistic effect. Series of developed functional nanocomposites based on PANI and colloidal TiO2nanoparti-cles  (NPs)  (TP),  carbonized  PANI  and  colloidal  TiO2NPs  (TPC)  and  carbonized  PANI  and  TiO2nanotubes (NTs) (TTPC) by the efficient and harmless synthesis pathways are presented. Differently shaped  TiO2nanocrystals  are  carefully  prepared  via  sol-gel  and  hydrothermal  synthesis  and  the influence  of  their  size  and  shape  on  the  photocatalytic  efficiency  of  hybrid  nanocomposites  was evaluated. The non-carbonized PANI/TiO2nanocomposites were synthesized by the chemical oxida-tive  polymerization  of  aniline  with  ammonium  peroxydisulfate,  in  the  presence  of  selected  TiO2nanocrystals,  while  the  carbonized  class  was  obtained  in the subsequent  carbonization  process, following  the  polymerization,  in  an  inert  atmosphere  at  650  °C.  The  morphology  and  structureof these nano-based photocatalysts was determined by TEM analysis and Raman spectroscopy. Func-tionality  of  nanocomposites  was  evaluated  following  the  photocatalytic  degradation  processes  of model compoundsMethylene blue and Rhodamine B and enhanced degradation efficiencies in the used dyes were observed, Aktuelna potreba za zaštitom životne sredine ne jenjava i s tim u vezi postavljeni su visoki zahtevi vezani za tematiku primenjenih tehnologija za uklanjanje organskih zagađujućih supstanci. Ispostavlja se da napredni procesi oksidacije (engl. Advanced oxidation processes, AOPs) predstavljaju jedan od najefikasnijih procesa, među kojima heterogena fotokataliza, bazirana na upotrebi nanokristala TiO2 aktiviranih UV zračenjem, nesumnjivo predstavlja jedan od najčešće korišćenih tretmana za degradaciju organskih boja. Problem ograničene fotokatalitičke efikasnosti TiO2 pod dejstvom sunčevog zračenja može se prevazići formiranjem kompozita sa polianilinom (PANI), čija se uloga bazira na smanjenju rekombinativnih procesa e-/h+, kao i sposobnosti PANI-a da optički aktivira nanokristale TiO2, što je bila osnova za formiranje novih funkcionalnih PANI/TiO2 nanokompozita. Takvi hibridni nanomaterijali bazirani na provodnom polimeru i nanokristalima različitih oblika pokazuju jedinstvena svojstva koja najčešće nisu karakteristika pojedinačnih komponenti, već njihovog sinergističkog dejstva. Efikasnim i ekološki prihvatljivim sintezama razvijena je serija funkcionalnih nanokompozita na bazi PANI-a i koloidnih TiO2 nanočestica (NPs) (TP), karbonizovanog PANI-a i koloidnih TiO2 NPs (TPC) i karbonizovanog PANI-a i TiO2 nanotuba (NTs) (TTPC). Nanokristali TiO2 različitog oblika pažljivo su sintetisani sol-gel i hidrotermalnom metodom i procenjen je uticaj njihove veličine i oblika na fotokatalitičku efikasnost hibridnih nanokompozita. Nekarbonizovani PANI/TiO2 nanokompoziti sintetisani su hemijskom oksidativnom polimerizacijom anilina sa amonijum peroksidisulfatom, u prisustvu odabranih nanokristala TiO2, dok je karbonizovana serija uzoraka dobijena naknadnim procesom karbonizacije, prateći polimerizaciju, u inertnoj atmosferi na 650 °C. Morfologija i struktura sintetisanih fotokatalitički aktivnih sistema ispitana je TEM analizom i Ramanskom spektroskopijom. Funkcionalnost nanokompozita je procenjena prateći procese fotokatalitičke degradacije model-jedinjenja Methylene blue i Rhodamine B i primećena je povećana efikasnost degradacije testiranih organskih boja",
publisher = "Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku",
journal = "36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova",
title = "Hybrid functional Pani/TiO2 nanocomposites for dyes degradation treatment, Hibridni funkcionalni Pani/TiO2 nanokompoziti za tretman degradacije organskih boja",
pages = "83-89",
doi = "10.24094/ptk.023.083"
}

Milošević, M., Radoičić, M., Ćirić-Marjanović, G., Spasojević, J., Vukoje, I., Radosavljević, A.,& Šaponjić, Z.. (2023). Hybrid functional Pani/TiO2 nanocomposites for dyes degradation treatment. in 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova
Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS) : Društvo za procesnu tehniku., 83-89.
https://doi.org/10.24094/ptk.023.083

Milošević M, Radoičić M, Ćirić-Marjanović G, Spasojević J, Vukoje I, Radosavljević A, Šaponjić Z. Hybrid functional Pani/TiO2 nanocomposites for dyes degradation treatment. in 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova. 2023;:83-89.
doi:10.24094/ptk.023.083 .

Milošević, Milica, Radoičić, Marija, Ćirić-Marjanović, Gordana, Spasojević, Jelena, Vukoje, Ivana, Radosavljević, Aleksandra, Šaponjić, Zoran, "Hybrid functional Pani/TiO2 nanocomposites for dyes degradation treatment" in 36. Međunarodni kongres o procesnoj industriji - PROCESING ′23 : zbornik radova (2023):83-89,
https://doi.org/10.24094/ptk.023.083 . .

TY  - CONF
AU  - Milošević, Milica
AU  - Radoičić, Marija
AU  - Ćirić-Marjanović, Gordana
AU  - Spasojević, Jelena
AU  - Vukoje, Ivana
AU  - Radosavljević, Aleksandra
AU  - Šaponjić, Zoran
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12197
AB  - Differently-shaped TiO2 photo-nanocatalysts play a principal role in the remediation of environmental and pollution challenges considering their proven potential for treating organic contaminants in wastewaters [1]. However, increasing the photoactivity of TiO2 i.e. its optical response from UV into visible region is a constant challenge of many ongoing researchers [2]. An proceed towards this demand may be the creation of hybrid functional nanocomposites by coating the TiO2 nanocrystals (NCs) with electronically coupled conductive polymers (e.g., polyaniline (PANI), polypyrrole, etc.) [3]. By the carbonization process of mentioned conductive polymers at high temperatures, obtained final material possess carbon-like structure which impart additional properties [4]. Thus, the evolution of carbonized PANI (CPANI)- coated TiO2 NCs opens up the possibility for tailoring the photocatalyst with distinctive properties. This study implies development of new nanocomposites based on CPANI and colloidal TiO2 nanoparticles (NPs) (TPC) and CPANI and TiO2 nanotubes (NTs) (TTPC). Sol- gel and hydrothermal synthesis paths were used to obtain TiO2 NCs. The influence of their size and shape on the photocatalytic activity of formed carbonized nanocomposites was estimated. TPC and TTPC nanocomposites were synthesized according to the steps: 1) the non-carbonized PANI/TiO2 class was firstly prepared by the chemical oxidative polymerization of aniline with ammonium peroxydisulfate in the presence of TiO2 NPs or NTs and 2) the subsequent carbonization process was applied (650 °C). Developed hybrid nanocomposites were morphologically and structurally characterized by TEM measurements and Raman spectroscopy, while their functionality was estimated through the photocatalytic degradation processes of Methylene blue and Rhodamine B. All TPC and TTPC nanocomposites showed excellent photocatalytic properties, however, shape-depending of used TiO2 NCs.
PB  - Szeged : University of Szeged
C3  - 29th International Symposium on Analytical and Environmental Problems : Proceedings
T1  - Shape-dependent carbonized PANI-coated TiO2 nanocrystals and its use in the decomposition of organic pollutants
SP  - 225
EP  - 225
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12197
ER  - 

@conference{
author = "Milošević, Milica and Radoičić, Marija and Ćirić-Marjanović, Gordana and Spasojević, Jelena and Vukoje, Ivana and Radosavljević, Aleksandra and Šaponjić, Zoran",
year = "2023",
abstract = "Differently-shaped TiO2 photo-nanocatalysts play a principal role in the remediation of environmental and pollution challenges considering their proven potential for treating organic contaminants in wastewaters [1]. However, increasing the photoactivity of TiO2 i.e. its optical response from UV into visible region is a constant challenge of many ongoing researchers [2]. An proceed towards this demand may be the creation of hybrid functional nanocomposites by coating the TiO2 nanocrystals (NCs) with electronically coupled conductive polymers (e.g., polyaniline (PANI), polypyrrole, etc.) [3]. By the carbonization process of mentioned conductive polymers at high temperatures, obtained final material possess carbon-like structure which impart additional properties [4]. Thus, the evolution of carbonized PANI (CPANI)- coated TiO2 NCs opens up the possibility for tailoring the photocatalyst with distinctive properties. This study implies development of new nanocomposites based on CPANI and colloidal TiO2 nanoparticles (NPs) (TPC) and CPANI and TiO2 nanotubes (NTs) (TTPC). Sol- gel and hydrothermal synthesis paths were used to obtain TiO2 NCs. The influence of their size and shape on the photocatalytic activity of formed carbonized nanocomposites was estimated. TPC and TTPC nanocomposites were synthesized according to the steps: 1) the non-carbonized PANI/TiO2 class was firstly prepared by the chemical oxidative polymerization of aniline with ammonium peroxydisulfate in the presence of TiO2 NPs or NTs and 2) the subsequent carbonization process was applied (650 °C). Developed hybrid nanocomposites were morphologically and structurally characterized by TEM measurements and Raman spectroscopy, while their functionality was estimated through the photocatalytic degradation processes of Methylene blue and Rhodamine B. All TPC and TTPC nanocomposites showed excellent photocatalytic properties, however, shape-depending of used TiO2 NCs.",
publisher = "Szeged : University of Szeged",
journal = "29th International Symposium on Analytical and Environmental Problems : Proceedings",
title = "Shape-dependent carbonized PANI-coated TiO2 nanocrystals and its use in the decomposition of organic pollutants",
pages = "225-225",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12197"
}

Milošević, M., Radoičić, M., Ćirić-Marjanović, G., Spasojević, J., Vukoje, I., Radosavljević, A.,& Šaponjić, Z.. (2023). Shape-dependent carbonized PANI-coated TiO2 nanocrystals and its use in the decomposition of organic pollutants. in 29th International Symposium on Analytical and Environmental Problems : Proceedings
Szeged : University of Szeged., 225-225.
https://hdl.handle.net/21.15107/rcub_vinar_12197

Milošević M, Radoičić M, Ćirić-Marjanović G, Spasojević J, Vukoje I, Radosavljević A, Šaponjić Z. Shape-dependent carbonized PANI-coated TiO2 nanocrystals and its use in the decomposition of organic pollutants. in 29th International Symposium on Analytical and Environmental Problems : Proceedings. 2023;:225-225.
https://hdl.handle.net/21.15107/rcub_vinar_12197 .

Milošević, Milica, Radoičić, Marija, Ćirić-Marjanović, Gordana, Spasojević, Jelena, Vukoje, Ivana, Radosavljević, Aleksandra, Šaponjić, Zoran, "Shape-dependent carbonized PANI-coated TiO2 nanocrystals and its use in the decomposition of organic pollutants" in 29th International Symposium on Analytical and Environmental Problems : Proceedings (2023):225-225,
https://hdl.handle.net/21.15107/rcub_vinar_12197 .

TY  - CONF
AU  - Spasojević, Jelena
AU  - Vukoje, Ivana
AU  - Nikolić, Nikolina
AU  - Milošević, Milica
AU  - Ranković, Dragan
AU  - Radosavljević, Aleksandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12196
AB  - In recent years, drug delivery systems have been one of the most investigated solutions for safer and more efficient therapy. Among many investigated materials, hydrogels with incorporated drugs and/or active substances can be produced in different ways to meet the criteria of biocompatibility, non-toxicity, continuous drug delivery, etc. In our previous work, the Ag- P(NiPAAm/IA) hydrogel nanocomposites were produced by radiolytic method, which enabled the synthesis and sterilization of materials in one technological step. Because of silver ions release, these hydrogel nanocomposites showed good antibacterial potential against both gram- positive and gram-negative bacteria. In this study, we go a step forward and investigate the silver release mechanism by fitting experimentally obtained data with several commonly used kinetics models of drug release.
PB  - Szeged : University of Szeged
C3  - 29th International Symposium on Analytical and Environmental Problems : Proceedings
T1  - Kinetic aspects of silver ions release from Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites
SP  - 303
EP  - 307
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12196
ER  - 

@conference{
author = "Spasojević, Jelena and Vukoje, Ivana and Nikolić, Nikolina and Milošević, Milica and Ranković, Dragan and Radosavljević, Aleksandra",
year = "2023",
abstract = "In recent years, drug delivery systems have been one of the most investigated solutions for safer and more efficient therapy. Among many investigated materials, hydrogels with incorporated drugs and/or active substances can be produced in different ways to meet the criteria of biocompatibility, non-toxicity, continuous drug delivery, etc. In our previous work, the Ag- P(NiPAAm/IA) hydrogel nanocomposites were produced by radiolytic method, which enabled the synthesis and sterilization of materials in one technological step. Because of silver ions release, these hydrogel nanocomposites showed good antibacterial potential against both gram- positive and gram-negative bacteria. In this study, we go a step forward and investigate the silver release mechanism by fitting experimentally obtained data with several commonly used kinetics models of drug release.",
publisher = "Szeged : University of Szeged",
journal = "29th International Symposium on Analytical and Environmental Problems : Proceedings",
title = "Kinetic aspects of silver ions release from Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites",
pages = "303-307",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12196"
}

Spasojević, J., Vukoje, I., Nikolić, N., Milošević, M., Ranković, D.,& Radosavljević, A.. (2023). Kinetic aspects of silver ions release from Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites. in 29th International Symposium on Analytical and Environmental Problems : Proceedings
Szeged : University of Szeged., 303-307.
https://hdl.handle.net/21.15107/rcub_vinar_12196

Spasojević J, Vukoje I, Nikolić N, Milošević M, Ranković D, Radosavljević A. Kinetic aspects of silver ions release from Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites. in 29th International Symposium on Analytical and Environmental Problems : Proceedings. 2023;:303-307.
https://hdl.handle.net/21.15107/rcub_vinar_12196 .

Spasojević, Jelena, Vukoje, Ivana, Nikolić, Nikolina, Milošević, Milica, Ranković, Dragan, Radosavljević, Aleksandra, "Kinetic aspects of silver ions release from Ag-poly(N-isopropylacrylamide/itaconic acid) hydrogel nanocomposites" in 29th International Symposium on Analytical and Environmental Problems : Proceedings (2023):303-307,
https://hdl.handle.net/21.15107/rcub_vinar_12196 .

TY  - JOUR
AU  - Vukoje, Ivana
AU  - Lazić, Vesna M.
AU  - Sredojević, Dušan
AU  - Fernandes, Margarida M.
AU  - Lanceros-Mendez, Senentxu
AU  - Ahrenkiel, S. Phillip
AU  - Nedeljković, Jovan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10052
AB  - Aqueous colloids, consisting of 15–30 nm-sized silver nanoparticles (Ag NPs), were prepared using the reducing and stabilizing abilities of glucose, sucrose, and dextran. The long-term stability of coated Ag NPs increases from glucose over sucrose to dextran, i.e., with the increase of the molecular weight of carbohydrate molecules. The density functional theory (DFT) calculations of the partial atomic (Mulliken) charges and adsorption energies are applied to explain the enhanced stability of coated Ag NPs. All coated Ag NPs have a significantly broader concentration range of nontoxic behavior toward pre-osteoblast cells than bare Ag NPs prepared using sodium borohydride. The carbohydrate-coated Ag NPs display the same level of toxic ability against Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria as bare Ag NPs. The differences in toxicity mechanism of the coated and bare Ag NPs are a consequence of the absence and presence of co-occurring Ag+ ions in examined dispersion, respectively.
T2  - International Journal of Biological Macromolecules
T2  - International Journal of Biological MacromoleculesInternational Journal of Biological Macromolecules
T1  - Influence of glucose, sucrose, and dextran coatings on the stability and toxicity of silver nanoparticles
VL  - 194
SP  - 461
EP  - 469
DO  - 10.1016/j.ijbiomac.2021.11.089
ER  - 

@article{
author = "Vukoje, Ivana and Lazić, Vesna M. and Sredojević, Dušan and Fernandes, Margarida M. and Lanceros-Mendez, Senentxu and Ahrenkiel, S. Phillip and Nedeljković, Jovan",
year = "2022",
abstract = "Aqueous colloids, consisting of 15–30 nm-sized silver nanoparticles (Ag NPs), were prepared using the reducing and stabilizing abilities of glucose, sucrose, and dextran. The long-term stability of coated Ag NPs increases from glucose over sucrose to dextran, i.e., with the increase of the molecular weight of carbohydrate molecules. The density functional theory (DFT) calculations of the partial atomic (Mulliken) charges and adsorption energies are applied to explain the enhanced stability of coated Ag NPs. All coated Ag NPs have a significantly broader concentration range of nontoxic behavior toward pre-osteoblast cells than bare Ag NPs prepared using sodium borohydride. The carbohydrate-coated Ag NPs display the same level of toxic ability against Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria as bare Ag NPs. The differences in toxicity mechanism of the coated and bare Ag NPs are a consequence of the absence and presence of co-occurring Ag+ ions in examined dispersion, respectively.",
journal = "International Journal of Biological Macromolecules, International Journal of Biological MacromoleculesInternational Journal of Biological Macromolecules",
title = "Influence of glucose, sucrose, and dextran coatings on the stability and toxicity of silver nanoparticles",
volume = "194",
pages = "461-469",
doi = "10.1016/j.ijbiomac.2021.11.089"
}

Vukoje, I., Lazić, V. M., Sredojević, D., Fernandes, M. M., Lanceros-Mendez, S., Ahrenkiel, S. P.,& Nedeljković, J.. (2022). Influence of glucose, sucrose, and dextran coatings on the stability and toxicity of silver nanoparticles. in International Journal of Biological Macromolecules, 194, 461-469.
https://doi.org/10.1016/j.ijbiomac.2021.11.089

Vukoje I, Lazić VM, Sredojević D, Fernandes MM, Lanceros-Mendez S, Ahrenkiel SP, Nedeljković J. Influence of glucose, sucrose, and dextran coatings on the stability and toxicity of silver nanoparticles. in International Journal of Biological Macromolecules. 2022;194:461-469.
doi:10.1016/j.ijbiomac.2021.11.089 .

Vukoje, Ivana, Lazić, Vesna M., Sredojević, Dušan, Fernandes, Margarida M., Lanceros-Mendez, Senentxu, Ahrenkiel, S. Phillip, Nedeljković, Jovan, "Influence of glucose, sucrose, and dextran coatings on the stability and toxicity of silver nanoparticles" in International Journal of Biological Macromolecules, 194 (2022):461-469,
https://doi.org/10.1016/j.ijbiomac.2021.11.089 . .

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  - 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  - Kuzman, Sanja
AU  - Periša, Jovana
AU  - Đorđević, Vesna R.
AU  - Zeković, Ivana Lj.
AU  - Vukoje, Ivana D.
AU  - Antić, Željka
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9098
AB  - A promising way to improve the performance of luminescent materials is to combine them with noble metal nanoparticles. Herein, a set of silver/europium-doped lanthanum orthophosphate (Ag/La0.95Eu0.05PO4) nanostructures with different concentrations of silver nanoparticles were prepared and investigated. The presented overlap between the strongest europium (Eu3+) excitation line and the broad silver nanoparticle surface plasmon resonance makes the combination prospective for coupling. X-ray powder diffraction confirmed the monoclinic monazite structure. The transmission electron microscopy revealed particles with a rod-like shape and ~4 aspect ratio. Photoluminescence spectra show characteristic Eu3+ ion red emission. One of the requirements for an enhanced luminescence effect is the precise control of the distance between the noble metal nanoparticles and the emitter ion. The distance is indirectly varied throughout the change of Ag nanoparticle concentration in the La0.95Eu0.05PO4 host. The emission intensity increases with the increase in Ag nanoparticles up to 0.6 mol %, after which the luminescence decreases due to the nanoparticles’ close packing and aggregation leading to the displacement of La0.95Eu0.05PO4 from the vicinity of the metal particles and reabsorption of the emitted light. The emission intensity of La0.95Eu0.05PO4 increases more than three times when the Eu3+ excitation is supported by the localized surface plasmon resonance in the Ag/La0.95Eu0.05PO4 nanostructures.
T2  - Materials
T1  - Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles
VL  - 13
IS  - 14
SP  - 3071
DO  - 10.3390/ma13143071
ER  - 

@article{
author = "Kuzman, Sanja and Periša, Jovana and Đorđević, Vesna R. and Zeković, Ivana Lj. and Vukoje, Ivana D. and Antić, Željka and Dramićanin, Miroslav",
year = "2020",
abstract = "A promising way to improve the performance of luminescent materials is to combine them with noble metal nanoparticles. Herein, a set of silver/europium-doped lanthanum orthophosphate (Ag/La0.95Eu0.05PO4) nanostructures with different concentrations of silver nanoparticles were prepared and investigated. The presented overlap between the strongest europium (Eu3+) excitation line and the broad silver nanoparticle surface plasmon resonance makes the combination prospective for coupling. X-ray powder diffraction confirmed the monoclinic monazite structure. The transmission electron microscopy revealed particles with a rod-like shape and ~4 aspect ratio. Photoluminescence spectra show characteristic Eu3+ ion red emission. One of the requirements for an enhanced luminescence effect is the precise control of the distance between the noble metal nanoparticles and the emitter ion. The distance is indirectly varied throughout the change of Ag nanoparticle concentration in the La0.95Eu0.05PO4 host. The emission intensity increases with the increase in Ag nanoparticles up to 0.6 mol %, after which the luminescence decreases due to the nanoparticles’ close packing and aggregation leading to the displacement of La0.95Eu0.05PO4 from the vicinity of the metal particles and reabsorption of the emitted light. The emission intensity of La0.95Eu0.05PO4 increases more than three times when the Eu3+ excitation is supported by the localized surface plasmon resonance in the Ag/La0.95Eu0.05PO4 nanostructures.",
journal = "Materials",
title = "Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles",
volume = "13",
number = "14",
pages = "3071",
doi = "10.3390/ma13143071"
}

Kuzman, S., Periša, J., Đorđević, V. R., Zeković, I. Lj., Vukoje, I. D., Antić, Ž.,& Dramićanin, M.. (2020). Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles. in Materials, 13(14), 3071.
https://doi.org/10.3390/ma13143071

Kuzman S, Periša J, Đorđević VR, Zeković IL, Vukoje ID, Antić Ž, Dramićanin M. Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles. in Materials. 2020;13(14):3071.
doi:10.3390/ma13143071 .

Kuzman, Sanja, Periša, Jovana, Đorđević, Vesna R., Zeković, Ivana Lj., Vukoje, Ivana D., Antić, Željka, Dramićanin, Miroslav, "Surface Plasmon Enhancement of Eu3+ Emission Intensity in LaPO4/Ag Nanoparticles" in Materials, 13, no. 14 (2020):3071,
https://doi.org/10.3390/ma13143071 . .

TY  - JOUR
AU  - Prekajski-Đorđević, Marija D.
AU  - Vukoje, Ivana D.
AU  - Lazić, Vesna M.
AU  - Đorđević, Vesna R.
AU  - Sredojević, Dušan
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
AU  - Ahrenkiel, Scott Phillip
AU  - Belić, Milivoj R.
AU  - Nedeljković, Jovan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8387
AB  - Surface modification of CeO2 nano-powder, synthesized by a self-propagating room temperature method with salicylate-type ligands (salicylic acid and 5-aminosalicylic acid) as well as catecholate-type ligands (catechol, 3,4-dihydroxybenzoic acid, caffeic acid and 2,3-dihydroxy naphthalene), induces the appearance of absorption in the visible spectral region due to the interfacial charge transfer (ICT) complex formation. Thorough characterization involving transmission electron microscopy, XRD analysis, and nitrogen adsorption-desorption isotherms, revealed that loosely agglomerated CeO2 particles of the size ranging from 2 to 4 nm have cubic fluorite structure and specific surface area of 140 m2/g. The attachment of salicylate- and catecholate-type of ligands to the surface of CeO2 powders leads to the formation of colored powders with tunable absorption in the visible spectral region. The density functional theory calculations with properly design model systems were performed to estimate the alignment of energy levels of various inorganic/organic hybrids. A reasonably good agreement between calculated values and experimental data was found. © 2019
T2  - Materials Chemistry and Physics
T1  - Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study
VL  - 236
SP  - 121816
DO  - 10.1016/j.matchemphys.2019.121816
ER  - 

@article{
author = "Prekajski-Đorđević, Marija D. and Vukoje, Ivana D. and Lazić, Vesna M. and Đorđević, Vesna R. and Sredojević, Dušan and Dostanić, Jasmina and Lončarević, Davor and Ahrenkiel, Scott Phillip and Belić, Milivoj R. and Nedeljković, Jovan",
year = "2019",
abstract = "Surface modification of CeO2 nano-powder, synthesized by a self-propagating room temperature method with salicylate-type ligands (salicylic acid and 5-aminosalicylic acid) as well as catecholate-type ligands (catechol, 3,4-dihydroxybenzoic acid, caffeic acid and 2,3-dihydroxy naphthalene), induces the appearance of absorption in the visible spectral region due to the interfacial charge transfer (ICT) complex formation. Thorough characterization involving transmission electron microscopy, XRD analysis, and nitrogen adsorption-desorption isotherms, revealed that loosely agglomerated CeO2 particles of the size ranging from 2 to 4 nm have cubic fluorite structure and specific surface area of 140 m2/g. The attachment of salicylate- and catecholate-type of ligands to the surface of CeO2 powders leads to the formation of colored powders with tunable absorption in the visible spectral region. The density functional theory calculations with properly design model systems were performed to estimate the alignment of energy levels of various inorganic/organic hybrids. A reasonably good agreement between calculated values and experimental data was found. © 2019",
journal = "Materials Chemistry and Physics",
title = "Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study",
volume = "236",
pages = "121816",
doi = "10.1016/j.matchemphys.2019.121816"
}

Prekajski-Đorđević, M. D., Vukoje, I. D., Lazić, V. M., Đorđević, V. R., Sredojević, D., Dostanić, J., Lončarević, D., Ahrenkiel, S. P., Belić, M. R.,& Nedeljković, J.. (2019). Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study. in Materials Chemistry and Physics, 236, 121816.
https://doi.org/10.1016/j.matchemphys.2019.121816

Prekajski-Đorđević MD, Vukoje ID, Lazić VM, Đorđević VR, Sredojević D, Dostanić J, Lončarević D, Ahrenkiel SP, Belić MR, Nedeljković J. Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study. in Materials Chemistry and Physics. 2019;236:121816.
doi:10.1016/j.matchemphys.2019.121816 .

Prekajski-Đorđević, Marija D., Vukoje, Ivana D., Lazić, Vesna M., Đorđević, Vesna R., Sredojević, Dušan, Dostanić, Jasmina, Lončarević, Davor, Ahrenkiel, Scott Phillip, Belić, Milivoj R., Nedeljković, Jovan, "Electronic structure of surface complexes between CeO2 and benzene derivatives: A comparative experimental and DFT study" in Materials Chemistry and Physics, 236 (2019):121816,
https://doi.org/10.1016/j.matchemphys.2019.121816 . .

TY  - JOUR
AU  - Vukoje, Ivana D.
AU  - Džunuzović, Enis S.
AU  - Dimitrijević, Suzana I.
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8449
AB  - Size-dependent antimicrobial ability of silver nanoparticles (Ag NPs) supported by amino-functionalized poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA)) macroporous copolymer was tested against Gram-negative bacteria Escherichia coli. Inorganic/organic hybrids with distinctly different average sizes of Ag NPs (6.6 and 12.1 nm) were prepared by functionalization of poly(GMA-co-EGDMA) with either 1,8-diaminooctane or ammonia, and consequent reduction of silver ions with amino groups. The transmission electron microscopy (TEM), infrared and UV–Vis reflection spectroscopy, elemental analysis, and inductively coupled plasma atomic emission measurements were used to characterize synthesized hybrid materials. Time- and concentration-dependent antimicrobial performances of prepared samples revealed higher reduction rates of E. coli when hybrid with smaller in size Ag NPs was used. The difference between rates of reduction of E. coli for different size Ag NPs is becoming more pronounced by decrease of the concentration of silver. POLYM. COMPOS., 2018. © 2018 Society of Plastics Engineers. © 2018 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Size‐dependent antibacterial properties of Ag nanoparticles supported by amino‐functionalized poly(GMA‐ co ‐EGDMA) polymer
VL  - 40
IS  - 7
SP  - 2901
EP  - 2907
DO  - 10.1002/pc.25120
ER  - 

@article{
author = "Vukoje, Ivana D. and Džunuzović, Enis S. and Dimitrijević, Suzana I. and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2019",
abstract = "Size-dependent antimicrobial ability of silver nanoparticles (Ag NPs) supported by amino-functionalized poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA)) macroporous copolymer was tested against Gram-negative bacteria Escherichia coli. Inorganic/organic hybrids with distinctly different average sizes of Ag NPs (6.6 and 12.1 nm) were prepared by functionalization of poly(GMA-co-EGDMA) with either 1,8-diaminooctane or ammonia, and consequent reduction of silver ions with amino groups. The transmission electron microscopy (TEM), infrared and UV–Vis reflection spectroscopy, elemental analysis, and inductively coupled plasma atomic emission measurements were used to characterize synthesized hybrid materials. Time- and concentration-dependent antimicrobial performances of prepared samples revealed higher reduction rates of E. coli when hybrid with smaller in size Ag NPs was used. The difference between rates of reduction of E. coli for different size Ag NPs is becoming more pronounced by decrease of the concentration of silver. POLYM. COMPOS., 2018. © 2018 Society of Plastics Engineers. © 2018 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Size‐dependent antibacterial properties of Ag nanoparticles supported by amino‐functionalized poly(GMA‐ co ‐EGDMA) polymer",
volume = "40",
number = "7",
pages = "2901-2907",
doi = "10.1002/pc.25120"
}

Vukoje, I. D., Džunuzović, E. S., Dimitrijević, S. I., Ahrenkiel, S. P.,& Nedeljković, J.. (2019). Size‐dependent antibacterial properties of Ag nanoparticles supported by amino‐functionalized poly(GMA‐ co ‐EGDMA) polymer. in Polymer Composites, 40(7), 2901-2907.
https://doi.org/10.1002/pc.25120

Vukoje ID, Džunuzović ES, Dimitrijević SI, Ahrenkiel SP, Nedeljković J. Size‐dependent antibacterial properties of Ag nanoparticles supported by amino‐functionalized poly(GMA‐ co ‐EGDMA) polymer. in Polymer Composites. 2019;40(7):2901-2907.
doi:10.1002/pc.25120 .

Vukoje, Ivana D., Džunuzović, Enis S., Dimitrijević, Suzana I., Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Size‐dependent antibacterial properties of Ag nanoparticles supported by amino‐functionalized poly(GMA‐ co ‐EGDMA) polymer" in Polymer Composites, 40, no. 7 (2019):2901-2907,
https://doi.org/10.1002/pc.25120 . .

TY  - JOUR
AU  - Bajić, Vladan P.
AU  - Spremo-Potparević, Biljana
AU  - Živković, Lada
AU  - Čabarkapa, Andrea
AU  - Kotur-Stevuljevic, Jelena
AU  - Isenović, Esma R.
AU  - Sredojević, Dušan
AU  - Vukoje, Ivana D.
AU  - Lazić, Vesna M.
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1607
AB  - The antigenotoxic and antioxidative properties of surface-modified TiO2 nanoparticles (NPs) with ascorbic acid (AA) were compared with those of constituents (free AA and bare TiO2 NPs). Colloids consisting of the TiO2 NPs with anatase crystal structure were prepared by acidic hydrolysis of TiCl4. The synthesized TiO2 NPs were characterized using transmission electron microscopy and X-ray diffraction analysis. The charge transfer (CT) complex formation between surface Ti atoms and AA is indicated by immediate appearance of red color. Composition and stability constants of CT complex were determined using Jobs method and Banesi-Hildebrand analysis, respectively. The surface structure of CT complex was determined from infra-red spectra of free and bound AA to the surface Ti atoms. The experimental data were supported with quantum chemical calculations based on density functional theory (DFT). The antigenotoxic potential of CT complex was evaluated in leukocytes of whole blood cells in vitro by comet assay method. For evaluation of antioxidant properties, total antioxidant status (TAS) and total oxidant status (TOS) were determined in human serum pool in vitro. The presented results indicate that bare TiO2 NPs have more pronounced antigenotoxic effects in comparison with either surface-modified TiO2 NPs with AA or free AA. No significant differences between the antigenotoxic and antioxidative properties of free and bound AA on the TiO2 NPs were noticed in the investigated concentration range. It seems that surface-modified TiO2 NPs with AA and/or similar compounds can be used to maintain its beneficial activities. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Colloids and Surfaces. B: Biointerfaces
T1  - Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro
VL  - 155
SP  - 323
EP  - 331
DO  - 10.1016/j.colsurfb.2017.04.032
ER  - 

@article{
author = "Bajić, Vladan P. and Spremo-Potparević, Biljana and Živković, Lada and Čabarkapa, Andrea and Kotur-Stevuljevic, Jelena and Isenović, Esma R. and Sredojević, Dušan and Vukoje, Ivana D. and Lazić, Vesna M. and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2017",
abstract = "The antigenotoxic and antioxidative properties of surface-modified TiO2 nanoparticles (NPs) with ascorbic acid (AA) were compared with those of constituents (free AA and bare TiO2 NPs). Colloids consisting of the TiO2 NPs with anatase crystal structure were prepared by acidic hydrolysis of TiCl4. The synthesized TiO2 NPs were characterized using transmission electron microscopy and X-ray diffraction analysis. The charge transfer (CT) complex formation between surface Ti atoms and AA is indicated by immediate appearance of red color. Composition and stability constants of CT complex were determined using Jobs method and Banesi-Hildebrand analysis, respectively. The surface structure of CT complex was determined from infra-red spectra of free and bound AA to the surface Ti atoms. The experimental data were supported with quantum chemical calculations based on density functional theory (DFT). The antigenotoxic potential of CT complex was evaluated in leukocytes of whole blood cells in vitro by comet assay method. For evaluation of antioxidant properties, total antioxidant status (TAS) and total oxidant status (TOS) were determined in human serum pool in vitro. The presented results indicate that bare TiO2 NPs have more pronounced antigenotoxic effects in comparison with either surface-modified TiO2 NPs with AA or free AA. No significant differences between the antigenotoxic and antioxidative properties of free and bound AA on the TiO2 NPs were noticed in the investigated concentration range. It seems that surface-modified TiO2 NPs with AA and/or similar compounds can be used to maintain its beneficial activities. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Colloids and Surfaces. B: Biointerfaces",
title = "Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro",
volume = "155",
pages = "323-331",
doi = "10.1016/j.colsurfb.2017.04.032"
}

Bajić, V. P., Spremo-Potparević, B., Živković, L., Čabarkapa, A., Kotur-Stevuljevic, J., Isenović, E. R., Sredojević, D., Vukoje, I. D., Lazić, V. M., Ahrenkiel, S. P.,& Nedeljković, J.. (2017). Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro. in Colloids and Surfaces. B: Biointerfaces, 155, 323-331.
https://doi.org/10.1016/j.colsurfb.2017.04.032

Bajić VP, Spremo-Potparević B, Živković L, Čabarkapa A, Kotur-Stevuljevic J, Isenović ER, Sredojević D, Vukoje ID, Lazić VM, Ahrenkiel SP, Nedeljković J. Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro. in Colloids and Surfaces. B: Biointerfaces. 2017;155:323-331.
doi:10.1016/j.colsurfb.2017.04.032 .

Bajić, Vladan P., Spremo-Potparević, Biljana, Živković, Lada, Čabarkapa, Andrea, Kotur-Stevuljevic, Jelena, Isenović, Esma R., Sredojević, Dušan, Vukoje, Ivana D., Lazić, Vesna M., Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Surface-modified TiO2 nanoparticles with ascorbic acid: Antioxidant properties and efficiency against DNA damage in vitro" in Colloids and Surfaces. B: Biointerfaces, 155 (2017):323-331,
https://doi.org/10.1016/j.colsurfb.2017.04.032 . .

TY  - THES
AU  - Vukoje, Ivana D.
PY  - 2017
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=5335
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:16583/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=49496079
UR  - http://nardus.mpn.gov.rs/123456789/8828
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7326
AB  - U ovoj doktorskoj disertaciji prikazan je postupak dobijanja nanočestica srebra (Ag) na umreženom makroporoznom kopolimernom nosaču poli(glicidilmetakrilatu-ko-etilenglikol dimetakrilatu) (poli(GMA-ko-EGDMA))...
AB  - In this doctoral dissertation is provided a method of obtaining silver (Ag) nanoparticles on a crosslinked macroporous copolymer support poly(glycidylmethacrylate-co-ethyleneglycol dimethacrylate) (poli(GMA-co-EGDMA))...
PB  - Универзитет у Београду, Технолошко-металуршки факултет
T2  - Универзитет у Београду
T1  - Sinteza, karakterizacija i primena nanočestica srebra na makroporoznom polimernom nosaču
UR  - https://hdl.handle.net/21.15107/rcub_nardus_8828
ER  - 

@phdthesis{
author = "Vukoje, Ivana D.",
year = "2017",
abstract = "U ovoj doktorskoj disertaciji prikazan je postupak dobijanja nanočestica srebra (Ag) na umreženom makroporoznom kopolimernom nosaču poli(glicidilmetakrilatu-ko-etilenglikol dimetakrilatu) (poli(GMA-ko-EGDMA))..., In this doctoral dissertation is provided a method of obtaining silver (Ag) nanoparticles on a crosslinked macroporous copolymer support poly(glycidylmethacrylate-co-ethyleneglycol dimethacrylate) (poli(GMA-co-EGDMA))...",
publisher = "Универзитет у Београду, Технолошко-металуршки факултет",
journal = "Универзитет у Београду",
title = "Sinteza, karakterizacija i primena nanočestica srebra na makroporoznom polimernom nosaču",
url = "https://hdl.handle.net/21.15107/rcub_nardus_8828"
}

Vukoje, I. D.. (2017). Sinteza, karakterizacija i primena nanočestica srebra na makroporoznom polimernom nosaču. in Универзитет у Београду
Универзитет у Београду, Технолошко-металуршки факултет..
https://hdl.handle.net/21.15107/rcub_nardus_8828

Vukoje ID. Sinteza, karakterizacija i primena nanočestica srebra na makroporoznom polimernom nosaču. in Универзитет у Београду. 2017;.
https://hdl.handle.net/21.15107/rcub_nardus_8828 .

Vukoje, Ivana D., "Sinteza, karakterizacija i primena nanočestica srebra na makroporoznom polimernom nosaču" in Универзитет у Београду (2017),
https://hdl.handle.net/21.15107/rcub_nardus_8828 .

TY  - JOUR
AU  - Lončarević, Davor
AU  - Vukoje, Ivana D.
AU  - Dostanić, Jasmina
AU  - Bjelajac, Anđelika
AU  - Đorđević, Vesna R.
AU  - Dimitrijević, Suzana I.
AU  - Nedeljković, Jovan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1499
AB  - The rod-like Ag2CO3 particles (2-4 3 0.3-0.6 mm, length 3 diameter) were synthesized in water by the precipitation reaction between AgNO3 and NaHCO3 in the presence of polyvinylpyrrolidone. The X-ray diffraction analysis revealed the co-existence of monoclinic and hexagonal phases of Ag2CO3, without presence of impurities. The band gap energy of Ag-2 CO3 was found to be 1.4 eV from the diffuse reflectance spectra. Photocatalytic ability of Ag2CO3 was tested using degradation reaction of the organic dye methylene blue over the wide range of concentrations, as well as under long run working conditions in repeated cycles. The photocatalytic mechanism was discussed in terms of the relative energetics of valence and conduction band. Antimicrobial efficiency of Ag-2 CO3 in dark was tested against Gram-negative bacteria E. coli. The Ag2CO3 dispersions in the concentration range 0.1-1.0 mg/mL ensured 100% reduction of bacteria cells. Time-dependent measurements revealed that reduction rates of bacteria cells vary in ascending order with the content of Ag2CO3. On the other hand, the observed reduction rates of bacteria cells do not depend on the concentration of coexisting free Ag+ ions (from 2 to 25 mg/L) present in Ag2CO3 dispersion.
T2  - Chemistryselect
T1  - Antimicrobial and Photocatalytic Abilities of Ag2CO3 Nano-Rods
VL  - 2
IS  - 10
SP  - 2931
EP  - 2938
DO  - 10.1002/slct.201700003
ER  - 

@article{
author = "Lončarević, Davor and Vukoje, Ivana D. and Dostanić, Jasmina and Bjelajac, Anđelika and Đorđević, Vesna R. and Dimitrijević, Suzana I. and Nedeljković, Jovan",
year = "2017",
abstract = "The rod-like Ag2CO3 particles (2-4 3 0.3-0.6 mm, length 3 diameter) were synthesized in water by the precipitation reaction between AgNO3 and NaHCO3 in the presence of polyvinylpyrrolidone. The X-ray diffraction analysis revealed the co-existence of monoclinic and hexagonal phases of Ag2CO3, without presence of impurities. The band gap energy of Ag-2 CO3 was found to be 1.4 eV from the diffuse reflectance spectra. Photocatalytic ability of Ag2CO3 was tested using degradation reaction of the organic dye methylene blue over the wide range of concentrations, as well as under long run working conditions in repeated cycles. The photocatalytic mechanism was discussed in terms of the relative energetics of valence and conduction band. Antimicrobial efficiency of Ag-2 CO3 in dark was tested against Gram-negative bacteria E. coli. The Ag2CO3 dispersions in the concentration range 0.1-1.0 mg/mL ensured 100% reduction of bacteria cells. Time-dependent measurements revealed that reduction rates of bacteria cells vary in ascending order with the content of Ag2CO3. On the other hand, the observed reduction rates of bacteria cells do not depend on the concentration of coexisting free Ag+ ions (from 2 to 25 mg/L) present in Ag2CO3 dispersion.",
journal = "Chemistryselect",
title = "Antimicrobial and Photocatalytic Abilities of Ag2CO3 Nano-Rods",
volume = "2",
number = "10",
pages = "2931-2938",
doi = "10.1002/slct.201700003"
}

Lončarević, D., Vukoje, I. D., Dostanić, J., Bjelajac, A., Đorđević, V. R., Dimitrijević, S. I.,& Nedeljković, J.. (2017). Antimicrobial and Photocatalytic Abilities of Ag2CO3 Nano-Rods. in Chemistryselect, 2(10), 2931-2938.
https://doi.org/10.1002/slct.201700003

Lončarević D, Vukoje ID, Dostanić J, Bjelajac A, Đorđević VR, Dimitrijević SI, Nedeljković J. Antimicrobial and Photocatalytic Abilities of Ag2CO3 Nano-Rods. in Chemistryselect. 2017;2(10):2931-2938.
doi:10.1002/slct.201700003 .

Lončarević, Davor, Vukoje, Ivana D., Dostanić, Jasmina, Bjelajac, Anđelika, Đorđević, Vesna R., Dimitrijević, Suzana I., Nedeljković, Jovan, "Antimicrobial and Photocatalytic Abilities of Ag2CO3 Nano-Rods" in Chemistryselect, 2, no. 10 (2017):2931-2938,
https://doi.org/10.1002/slct.201700003 . .

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  - Vukoje, Ivana D.
AU  - Džunuzović, Enis S.
AU  - Lončarević, Davor
AU  - Dimitrijević, Suzana I.
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1361
AB  - Poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA) macroporous copolymer decorated with silver nanoparticles was prepared by a modification of poly(GMA-co-EGDMA) in the reaction with arginine, and consequent reduction of silver ions with amino groups. The mercury intrusion porosimetry, transmission electron microscopy, X-ray diffraction, UV-vis reflection spectroscopy, and inductively coupled plasma atomic emission measurements were used to characterize obtained composite. The coordination of silver nanoparticles to the poly(GMA-co-EGDMA) copolymer was studied using infrared spectroscopy. Time dependence and concentration dependence of the antimicrobial efficiency of composite were tested against Gram-negative bacteria Escherichia coli, Gram-positive bacteria Staphylococcus aureus, and fungus Candida albicans. The composite ensured maximum reduction of both bacteria, while the fungi reduction reached satisfactory 96.8%. Preliminary antimicrobial efficiency measurements using laboratory flow setup indicated potential applicability of composite for wastewater treatment. (C) 2015 Society of Plastics Engineers
T2  - Polymer Composites
T1  - Synthesis, Characterization, and Antimicrobial Activity of Silver Nanoparticles on Poly(GMA-co-EGDMA) Polymer Support
VL  - 38
IS  - 6
SP  - 1206
EP  - 1214
DO  - 10.1002/pc.23684
ER  - 

@article{
author = "Vukoje, Ivana D. and Džunuzović, Enis S. and Lončarević, Davor and Dimitrijević, Suzana I. and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2017",
abstract = "Poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA) macroporous copolymer decorated with silver nanoparticles was prepared by a modification of poly(GMA-co-EGDMA) in the reaction with arginine, and consequent reduction of silver ions with amino groups. The mercury intrusion porosimetry, transmission electron microscopy, X-ray diffraction, UV-vis reflection spectroscopy, and inductively coupled plasma atomic emission measurements were used to characterize obtained composite. The coordination of silver nanoparticles to the poly(GMA-co-EGDMA) copolymer was studied using infrared spectroscopy. Time dependence and concentration dependence of the antimicrobial efficiency of composite were tested against Gram-negative bacteria Escherichia coli, Gram-positive bacteria Staphylococcus aureus, and fungus Candida albicans. The composite ensured maximum reduction of both bacteria, while the fungi reduction reached satisfactory 96.8%. Preliminary antimicrobial efficiency measurements using laboratory flow setup indicated potential applicability of composite for wastewater treatment. (C) 2015 Society of Plastics Engineers",
journal = "Polymer Composites",
title = "Synthesis, Characterization, and Antimicrobial Activity of Silver Nanoparticles on Poly(GMA-co-EGDMA) Polymer Support",
volume = "38",
number = "6",
pages = "1206-1214",
doi = "10.1002/pc.23684"
}

Vukoje, I. D., Džunuzović, E. S., Lončarević, D., Dimitrijević, S. I., Ahrenkiel, S. P.,& Nedeljković, J.. (2017). Synthesis, Characterization, and Antimicrobial Activity of Silver Nanoparticles on Poly(GMA-co-EGDMA) Polymer Support. in Polymer Composites, 38(6), 1206-1214.
https://doi.org/10.1002/pc.23684

Vukoje ID, Džunuzović ES, Lončarević D, Dimitrijević SI, Ahrenkiel SP, Nedeljković J. Synthesis, Characterization, and Antimicrobial Activity of Silver Nanoparticles on Poly(GMA-co-EGDMA) Polymer Support. in Polymer Composites. 2017;38(6):1206-1214.
doi:10.1002/pc.23684 .

Vukoje, Ivana D., Džunuzović, Enis S., Lončarević, Davor, Dimitrijević, Suzana I., Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Synthesis, Characterization, and Antimicrobial Activity of Silver Nanoparticles on Poly(GMA-co-EGDMA) Polymer Support" in Polymer Composites, 38, no. 6 (2017):1206-1214,
https://doi.org/10.1002/pc.23684 . .

TY  - JOUR
AU  - Vukoje, Ivana D.
AU  - Kovač, Tijana S.
AU  - Džunuzović, Jasna V.
AU  - Džunuzović, Enis S.
AU  - Lončarević, Davor
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1221
AB  - The synthetic procedures for preparation of free-standing and attached to polymer support surface modified TiO2 nanoparticles (NPs) with absorption extended into the visible spectral region due to charge transfer complex formation were developed. The one-step synthesis of colloids consisting of surface-modified TiO2 NPs is based on the reaction between titanium(IV) isopropoxide (TTIP) and lauryl galatte in nonprotic organic solvents (tetrahydrofuran, xylol, chloroform). The poly(GMA-co-EGDMA) copolymer decorated with surface-modified TiO2 NPs was obtained in two steps. First, copolymer was functionalized with dopamine and then treated with TTIP in organic solvent at slightly elevated temperature. Thorough microstructural and optical characterization of free-standing and attached to polymer support surface-modified TiO2 NPs was performed involving transmission electron microscopy as well as absorption and reflection spectroscopy. Infrared spectroscopy was used to understand coordination of ligands to surface Ti atoms. Photoredox chemistry of surface-modified TiO2 NPs attached to the polymer support was tested. Enhanced photooxidative ability of composite was demonstrated by degradation of organic dye crystal violet under visible light illumination, i.e., using photons with energy smaller than 2.75 eV. On the other hand, photocatalytic hydrogen production was used to demonstrate photoreduction ability of surface modified TiO2 NPs attached to the polymer support.
T2  - Journal of Physical Chemistry. C
T1  - Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles
VL  - 120
IS  - 33
SP  - 18560
EP  - 18569
DO  - 10.1021/acs.jpcc.6b04293
ER  - 

@article{
author = "Vukoje, Ivana D. and Kovač, Tijana S. and Džunuzović, Jasna V. and Džunuzović, Enis S. and Lončarević, Davor and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2016",
abstract = "The synthetic procedures for preparation of free-standing and attached to polymer support surface modified TiO2 nanoparticles (NPs) with absorption extended into the visible spectral region due to charge transfer complex formation were developed. The one-step synthesis of colloids consisting of surface-modified TiO2 NPs is based on the reaction between titanium(IV) isopropoxide (TTIP) and lauryl galatte in nonprotic organic solvents (tetrahydrofuran, xylol, chloroform). The poly(GMA-co-EGDMA) copolymer decorated with surface-modified TiO2 NPs was obtained in two steps. First, copolymer was functionalized with dopamine and then treated with TTIP in organic solvent at slightly elevated temperature. Thorough microstructural and optical characterization of free-standing and attached to polymer support surface-modified TiO2 NPs was performed involving transmission electron microscopy as well as absorption and reflection spectroscopy. Infrared spectroscopy was used to understand coordination of ligands to surface Ti atoms. Photoredox chemistry of surface-modified TiO2 NPs attached to the polymer support was tested. Enhanced photooxidative ability of composite was demonstrated by degradation of organic dye crystal violet under visible light illumination, i.e., using photons with energy smaller than 2.75 eV. On the other hand, photocatalytic hydrogen production was used to demonstrate photoreduction ability of surface modified TiO2 NPs attached to the polymer support.",
journal = "Journal of Physical Chemistry. C",
title = "Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles",
volume = "120",
number = "33",
pages = "18560-18569",
doi = "10.1021/acs.jpcc.6b04293"
}

Vukoje, I. D., Kovač, T. S., Džunuzović, J. V., Džunuzović, E. S., Lončarević, D., Ahrenkiel, S. P.,& Nedeljković, J.. (2016). Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles. in Journal of Physical Chemistry. C, 120(33), 18560-18569.
https://doi.org/10.1021/acs.jpcc.6b04293

Vukoje ID, Kovač TS, Džunuzović JV, Džunuzović ES, Lončarević D, Ahrenkiel SP, Nedeljković J. Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles. in Journal of Physical Chemistry. C. 2016;120(33):18560-18569.
doi:10.1021/acs.jpcc.6b04293 .

Vukoje, Ivana D., Kovač, Tijana S., Džunuzović, Jasna V., Džunuzović, Enis S., Lončarević, Davor, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles" in Journal of Physical Chemistry. C, 120, no. 33 (2016):18560-18569,
https://doi.org/10.1021/acs.jpcc.6b04293 . .

TY  - JOUR
AU  - Vukoje, Ivana D.
AU  - Lazić, Vesna M.
AU  - Vodnik, Vesna
AU  - Mitrić, Miodrag
AU  - Jokić, Bojan M.
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
AU  - Radetić, Maja M.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5957
AB  - The effect of cotton fabric pretreatment with biopolymer chitosan (CHT) on deposition of colloidal triangular silver nanoplates was studied. Also, the influence of deposited silver nanoparticles on color and antimicrobial activity of cotton fabrics was evaluated. Characterization of colloidal silver nanoparticles as well as silver nanoparticles deposited on cotton fabrics was performed using electron microscopy (TEM and FESEM), XRD analysis, atomic absorption spectroscopy, UV-Vis absorption, and reflectance spectroscopy. The cotton fabric turned from white to blue color upon deposition of triangular silver nanoplates. Antimicrobial activity of CHT pretreated cotton fabric impregnated with silver nanoparticles was tested against Gram-negative bacteria Escherichia coli, Gram-positive bacteria Staphylococcus aureus, and fungi Candida albicans. Deposited silver nanoparticles imparted excellent antimicrobial properties to cotton fabric. The standard sterilization procedure of cotton fabric for antimicrobial activity testing resulted in color change of the fabric from blue to yellow. This color change is most likely consequence of transformation of triangular silver nanoplates into nanodiscs and/or their agglomeration into spheroids.
T2  - Journal of Materials Science
T1  - The influence of triangular silver nanoplates on antimicrobial activity and color of cotton fabrics pretreated with chitosan
VL  - 49
IS  - 13
SP  - 4453
EP  - 4460
DO  - 10.1007/s10853-014-8142-2
ER  - 

@article{
author = "Vukoje, Ivana D. and Lazić, Vesna M. and Vodnik, Vesna and Mitrić, Miodrag and Jokić, Bojan M. and Ahrenkiel, Scott Phillip and Nedeljković, Jovan and Radetić, Maja M.",
year = "2014",
abstract = "The effect of cotton fabric pretreatment with biopolymer chitosan (CHT) on deposition of colloidal triangular silver nanoplates was studied. Also, the influence of deposited silver nanoparticles on color and antimicrobial activity of cotton fabrics was evaluated. Characterization of colloidal silver nanoparticles as well as silver nanoparticles deposited on cotton fabrics was performed using electron microscopy (TEM and FESEM), XRD analysis, atomic absorption spectroscopy, UV-Vis absorption, and reflectance spectroscopy. The cotton fabric turned from white to blue color upon deposition of triangular silver nanoplates. Antimicrobial activity of CHT pretreated cotton fabric impregnated with silver nanoparticles was tested against Gram-negative bacteria Escherichia coli, Gram-positive bacteria Staphylococcus aureus, and fungi Candida albicans. Deposited silver nanoparticles imparted excellent antimicrobial properties to cotton fabric. The standard sterilization procedure of cotton fabric for antimicrobial activity testing resulted in color change of the fabric from blue to yellow. This color change is most likely consequence of transformation of triangular silver nanoplates into nanodiscs and/or their agglomeration into spheroids.",
journal = "Journal of Materials Science",
title = "The influence of triangular silver nanoplates on antimicrobial activity and color of cotton fabrics pretreated with chitosan",
volume = "49",
number = "13",
pages = "4453-4460",
doi = "10.1007/s10853-014-8142-2"
}

Vukoje, I. D., Lazić, V. M., Vodnik, V., Mitrić, M., Jokić, B. M., Ahrenkiel, S. P., Nedeljković, J.,& Radetić, M. M.. (2014). The influence of triangular silver nanoplates on antimicrobial activity and color of cotton fabrics pretreated with chitosan. in Journal of Materials Science, 49(13), 4453-4460.
https://doi.org/10.1007/s10853-014-8142-2

Vukoje ID, Lazić VM, Vodnik V, Mitrić M, Jokić BM, Ahrenkiel SP, Nedeljković J, Radetić MM. The influence of triangular silver nanoplates on antimicrobial activity and color of cotton fabrics pretreated with chitosan. in Journal of Materials Science. 2014;49(13):4453-4460.
doi:10.1007/s10853-014-8142-2 .

Vukoje, Ivana D., Lazić, Vesna M., Vodnik, Vesna, Mitrić, Miodrag, Jokić, Bojan M., Ahrenkiel, Scott Phillip, Nedeljković, Jovan, Radetić, Maja M., "The influence of triangular silver nanoplates on antimicrobial activity and color of cotton fabrics pretreated with chitosan" in Journal of Materials Science, 49, no. 13 (2014):4453-4460,
https://doi.org/10.1007/s10853-014-8142-2 . .

TY  - CONF
AU  - Vukoje, Ivana D.
AU  - Lazić, Vesna M.
AU  - Vodnik, Vesna
AU  - Jokić, Bojan M.
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
AU  - Radetić, Maja M.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9193
AB  - Triangular silver nanoplates are a type of most-studied noble-metal
nanostructures over the past decade, owing to their special structural
architecture, outstanding plasmonic features across both visible and IR
regions, and catalytic properties for a wide range of applications. Herein, we
used these nanoparticles to deposit on cotton (Co) fabric pretreated with
biopolymer chitosan (CHT) and investigated their antimicrobial activity.
The antimicrobial efficiency of the coated fabrics was evaluated toward
Gram-negative bacteria E. coli, Gram-positive bacteria S. aureus and fungus
C. albicans. It was found that deposited silver nanoparticles imparted
excellent antimicrobial properties to Co fabric.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - The antimicrobial activity of triangular silver nanoplates on cotton fabric pretreated with chitozan
VL  - F-20-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9193
ER  - 

@conference{
author = "Vukoje, Ivana D. and Lazić, Vesna M. and Vodnik, Vesna and Jokić, Bojan M. and Ahrenkiel, Scott Phillip and Nedeljković, Jovan and Radetić, Maja M.",
year = "2014",
abstract = "Triangular silver nanoplates are a type of most-studied noble-metal
nanostructures over the past decade, owing to their special structural
architecture, outstanding plasmonic features across both visible and IR
regions, and catalytic properties for a wide range of applications. Herein, we
used these nanoparticles to deposit on cotton (Co) fabric pretreated with
biopolymer chitosan (CHT) and investigated their antimicrobial activity.
The antimicrobial efficiency of the coated fabrics was evaluated toward
Gram-negative bacteria E. coli, Gram-positive bacteria S. aureus and fungus
C. albicans. It was found that deposited silver nanoparticles imparted
excellent antimicrobial properties to Co fabric.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "The antimicrobial activity of triangular silver nanoplates on cotton fabric pretreated with chitozan",
volume = "F-20-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9193"
}

Vukoje, I. D., Lazić, V. M., Vodnik, V., Jokić, B. M., Ahrenkiel, S. P., Nedeljković, J.,& Radetić, M. M.. (2014). The antimicrobial activity of triangular silver nanoplates on cotton fabric pretreated with chitozan. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., F-20-P.
https://hdl.handle.net/21.15107/rcub_vinar_9193

Vukoje ID, Lazić VM, Vodnik V, Jokić BM, Ahrenkiel SP, Nedeljković J, Radetić MM. The antimicrobial activity of triangular silver nanoplates on cotton fabric pretreated with chitozan. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;F-20-P.
https://hdl.handle.net/21.15107/rcub_vinar_9193 .

Vukoje, Ivana D., Lazić, Vesna M., Vodnik, Vesna, Jokić, Bojan M., Ahrenkiel, Scott Phillip, Nedeljković, Jovan, Radetić, Maja M., "The antimicrobial activity of triangular silver nanoplates on cotton fabric pretreated with chitozan" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, F-20-P (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9193 .

TY  - JOUR
AU  - Vukoje, Ivana D.
AU  - Vodnik, Vesna
AU  - Džunuzović, Jasna V.
AU  - Džunuzović, Enis S.
AU  - Marinović-Cincović, Milena
AU  - Jeremić, Katarina B.
AU  - Nedeljković, Jovan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5846
AB  - Nanocomposites (NCs) with different content of silver nanoparticles (Ag NPs) embeded in polystyrene (PS) matrix were prepared by in situ bulk radical polymerization. The nearly monodisperse Ag NPs protected with oleylamine were synthesized via organic solvo-thermal method and further used as a filler. The as-prepared spherical Ag NPs with diameter of 7.0 +/- 1.5 nm were well dispersed in the PS matrix. The structural properties of the resulting Ag/PS NCs were characterized by transmission electron microscope (TEM) and Fourier transform infrared (FTIR) spectroscopy, while optical properties were characterized using optical absorption measurements. The gel permeation chromatography (GPC) measurements showed that the presence of Ag NPs stabilized with oleylamine has no influence on the molecular weight and polydispersity of the PS matrix. The influence of silver content on the thermal properties of Ag/PS NCs was investigated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The results indicated that resistance of PS to thermal degradation was improved upon incorporation of Ag NPs. The Ag/PS NCs have lower glass transition temperatures than net PS because loosely packed oleylamine molecules at the interface caused the increase of free volume and chain segments mobility near the surface of Ag NPs. (C) 2013 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Characterization of silver/polystyrene nanocomposites prepared by in situ bulk radical polymerization
VL  - 49
SP  - 434
EP  - 439
DO  - 10.1016/j.materresbull.2013.09.029
ER  - 

@article{
author = "Vukoje, Ivana D. and Vodnik, Vesna and Džunuzović, Jasna V. and Džunuzović, Enis S. and Marinović-Cincović, Milena and Jeremić, Katarina B. and Nedeljković, Jovan",
year = "2014",
abstract = "Nanocomposites (NCs) with different content of silver nanoparticles (Ag NPs) embeded in polystyrene (PS) matrix were prepared by in situ bulk radical polymerization. The nearly monodisperse Ag NPs protected with oleylamine were synthesized via organic solvo-thermal method and further used as a filler. The as-prepared spherical Ag NPs with diameter of 7.0 +/- 1.5 nm were well dispersed in the PS matrix. The structural properties of the resulting Ag/PS NCs were characterized by transmission electron microscope (TEM) and Fourier transform infrared (FTIR) spectroscopy, while optical properties were characterized using optical absorption measurements. The gel permeation chromatography (GPC) measurements showed that the presence of Ag NPs stabilized with oleylamine has no influence on the molecular weight and polydispersity of the PS matrix. The influence of silver content on the thermal properties of Ag/PS NCs was investigated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The results indicated that resistance of PS to thermal degradation was improved upon incorporation of Ag NPs. The Ag/PS NCs have lower glass transition temperatures than net PS because loosely packed oleylamine molecules at the interface caused the increase of free volume and chain segments mobility near the surface of Ag NPs. (C) 2013 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Characterization of silver/polystyrene nanocomposites prepared by in situ bulk radical polymerization",
volume = "49",
pages = "434-439",
doi = "10.1016/j.materresbull.2013.09.029"
}

Vukoje, I. D., Vodnik, V., Džunuzović, J. V., Džunuzović, E. S., Marinović-Cincović, M., Jeremić, K. B.,& Nedeljković, J.. (2014). Characterization of silver/polystyrene nanocomposites prepared by in situ bulk radical polymerization. in Materials Research Bulletin, 49, 434-439.
https://doi.org/10.1016/j.materresbull.2013.09.029

Vukoje ID, Vodnik V, Džunuzović JV, Džunuzović ES, Marinović-Cincović M, Jeremić KB, Nedeljković J. Characterization of silver/polystyrene nanocomposites prepared by in situ bulk radical polymerization. in Materials Research Bulletin. 2014;49:434-439.
doi:10.1016/j.materresbull.2013.09.029 .

Vukoje, Ivana D., Vodnik, Vesna, Džunuzović, Jasna V., Džunuzović, Enis S., Marinović-Cincović, Milena, Jeremić, Katarina B., Nedeljković, Jovan, "Characterization of silver/polystyrene nanocomposites prepared by in situ bulk radical polymerization" in Materials Research Bulletin, 49 (2014):434-439,
https://doi.org/10.1016/j.materresbull.2013.09.029 . .

TY  - JOUR
AU  - Vukoje, Ivana D.
AU  - Tomasevic-Ilic, Tijana D.
AU  - Zarubica, Aleksandra R.
AU  - Dimitrijević, Suzana I.
AU  - Budimir, Milica
AU  - Vranješ, Mila
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/343
AB  - Nanocrystalline TiO2 films were prepared on glass slides by the dip coating technique using colloidal solutions consisting of 4.5 nm particles as a precursor. Photoirradiation of nanocrystalline TiO2 film modified with alanine that covalently binds to the surface of TiO2 and at the same time chelate silver ions induced formation of metallic silver film. Optical and morphological properties of thin silver films on nanocrystalline TiO2 support were studied by absorption spectroscopy and atomic force microscopy. Improvement of photocatalytic performance of nanocrystalline TiO2 films after deposition of silver was observed in degradation reaction of crystal violet. Antimicrobial ability of deposited silver films on nanocrystalline TiO2 support was tested in dark as a function of time against Escherichia coli, Staphylococcus aureus, and Candida albicans. The silver films ensured maximum cells reduction of both bacteria, while the fungi reduction reached satisfactory 98.45% after 24 h of contact. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Materials Research Bulletin
T1  - Silver film on nanocrystalline TiO2 support: Photocatalytic and antimicrobial ability
VL  - 60
SP  - 824
EP  - 829
DO  - 10.1016/j.materresbull.2014.09.073
ER  - 

@article{
author = "Vukoje, Ivana D. and Tomasevic-Ilic, Tijana D. and Zarubica, Aleksandra R. and Dimitrijević, Suzana I. and Budimir, Milica and Vranješ, Mila and Šaponjić, Zoran and Nedeljković, Jovan",
year = "2014",
abstract = "Nanocrystalline TiO2 films were prepared on glass slides by the dip coating technique using colloidal solutions consisting of 4.5 nm particles as a precursor. Photoirradiation of nanocrystalline TiO2 film modified with alanine that covalently binds to the surface of TiO2 and at the same time chelate silver ions induced formation of metallic silver film. Optical and morphological properties of thin silver films on nanocrystalline TiO2 support were studied by absorption spectroscopy and atomic force microscopy. Improvement of photocatalytic performance of nanocrystalline TiO2 films after deposition of silver was observed in degradation reaction of crystal violet. Antimicrobial ability of deposited silver films on nanocrystalline TiO2 support was tested in dark as a function of time against Escherichia coli, Staphylococcus aureus, and Candida albicans. The silver films ensured maximum cells reduction of both bacteria, while the fungi reduction reached satisfactory 98.45% after 24 h of contact. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Materials Research Bulletin",
title = "Silver film on nanocrystalline TiO2 support: Photocatalytic and antimicrobial ability",
volume = "60",
pages = "824-829",
doi = "10.1016/j.materresbull.2014.09.073"
}

Vukoje, I. D., Tomasevic-Ilic, T. D., Zarubica, A. R., Dimitrijević, S. I., Budimir, M., Vranješ, M., Šaponjić, Z.,& Nedeljković, J.. (2014). Silver film on nanocrystalline TiO2 support: Photocatalytic and antimicrobial ability. in Materials Research Bulletin, 60, 824-829.
https://doi.org/10.1016/j.materresbull.2014.09.073

Vukoje ID, Tomasevic-Ilic TD, Zarubica AR, Dimitrijević SI, Budimir M, Vranješ M, Šaponjić Z, Nedeljković J. Silver film on nanocrystalline TiO2 support: Photocatalytic and antimicrobial ability. in Materials Research Bulletin. 2014;60:824-829.
doi:10.1016/j.materresbull.2014.09.073 .

Vukoje, Ivana D., Tomasevic-Ilic, Tijana D., Zarubica, Aleksandra R., Dimitrijević, Suzana I., Budimir, Milica, Vranješ, Mila, Šaponjić, Zoran, Nedeljković, Jovan, "Silver film on nanocrystalline TiO2 support: Photocatalytic and antimicrobial ability" in Materials Research Bulletin, 60 (2014):824-829,
https://doi.org/10.1016/j.materresbull.2014.09.073 . .