TY  - JOUR
AU  - Abozaid, Rouaida Mohamed
AU  - Stojanović, Dušica
AU  - Radisavljević, Anđela
AU  - Sević, Dragutin M.
AU  - Rabasović, Maja S.
AU  - Radović, I. M.
AU  - Radojević, Vesna
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4573
AB  - Processing and characterization of polymer nanocomposites based on poly(methyl methacrylate) (PMMA) matrix with embedded core-shell CdSe/ZnS quantum dots were investigated. Nanocomposites were obtained via solution casting and electrospinning. FESEM analysis revealed that the processing with electrospinning enables better dispersion of quantum dots. Time-resolved laser induced fluorescence measurements confirmed uniform size of QDs in fibers with the emission at only one wavelength. Oxidation effects in quantum dots were removed with the use of PMMA as a host, and the core remained active, which was confirmed with FTIR analysis and time-resolved laser induced fluorescence measurements.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Journal of Optoelectronics and Advanced Materials
T1  - Polymer composite films and nanofibers doped with core-shell quantum dots
EP  - 74
IS  - 1-2
SP  - 67
VL  - 22
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9034
ER  - 

@article{
author = "Abozaid, Rouaida Mohamed and Stojanović, Dušica and Radisavljević, Anđela and Sević, Dragutin M. and Rabasović, Maja S. and Radović, I. M. and Radojević, Vesna",
year = "2020",
abstract = "Processing and characterization of polymer nanocomposites based on poly(methyl methacrylate) (PMMA) matrix with embedded core-shell CdSe/ZnS quantum dots were investigated. Nanocomposites were obtained via solution casting and electrospinning. FESEM analysis revealed that the processing with electrospinning enables better dispersion of quantum dots. Time-resolved laser induced fluorescence measurements confirmed uniform size of QDs in fibers with the emission at only one wavelength. Oxidation effects in quantum dots were removed with the use of PMMA as a host, and the core remained active, which was confirmed with FTIR analysis and time-resolved laser induced fluorescence measurements.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "Polymer composite films and nanofibers doped with core-shell quantum dots",
pages = "74-67",
number = "1-2",
volume = "22",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9034"
}

Abozaid, R. M., Stojanović, D., Radisavljević, A., Sević, D. M., Rabasović, M. S., Radović, I. M.,& Radojević, V.. (2020). Polymer composite films and nanofibers doped with core-shell quantum dots. in Journal of Optoelectronics and Advanced Materials
Natl Inst Optoelectronics, Bucharest-Magurele., 22(1-2), 67-74.
https://hdl.handle.net/21.15107/rcub_vinar_9034

Abozaid RM, Stojanović D, Radisavljević A, Sević DM, Rabasović MS, Radović IM, Radojević V. Polymer composite films and nanofibers doped with core-shell quantum dots. in Journal of Optoelectronics and Advanced Materials. 2020;22(1-2):67-74.
https://hdl.handle.net/21.15107/rcub_vinar_9034 .

Abozaid, Rouaida Mohamed, Stojanović, Dušica, Radisavljević, Anđela, Sević, Dragutin M., Rabasović, Maja S., Radović, I. M., Radojević, Vesna, "Polymer composite films and nanofibers doped with core-shell quantum dots" in Journal of Optoelectronics and Advanced Materials, 22, no. 1-2 (2020):67-74,
https://hdl.handle.net/21.15107/rcub_vinar_9034 .

TY  - JOUR
AU  - Abozaid, Rouaida Mohamed
AU  - Lazarević, Zorica Ž.
AU  - Radović, Ivana
AU  - Gilić, Martina
AU  - Sević, Dragutin M.
AU  - Rabasović, Maja S.
AU  - Radojević, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4225
AB  - Processing and characterization of polymer nanocomposites based on poly (methyl methacrylate) (PMMA) matrix with embedded core-shell CdSe/ZnS quantum dots (QD's) were presented in this work. The aim is to preserve the optical activity of QD's in nanocomposite processing with improved mechanical properties. The modification of QD's CdSe/ZnS-PMMA interface was achieved with 3-mercaptopropyltrimethoxysilane (MPTMS). Nanocomposites were processed by solution casting. The samples of pure PMMA, and composites with unmodified and silane modified QD's CdSe/ZnS were processed. FTIR analysis revealed modification of QD's with silane and characteristic bonding with PMMA matrix. Raman spectrum confirms a presence of alloyed layer at the core-shell interface. Time-resolved laser induced fluorescence measurements confirmed slight blue shift in QD's CdSe/ZnS-PMMA composite without interface modification, while there was a slight red shift with modified particles. Oxidation effects in quantum dots were removed with the use of PMMA as a host, and the core remained active, which was confirmed with FTIR analysis and time-resolved laser induced fluorescence measurements.
PB  - Elsevier Science Bv, Amsterdam
T2  - Optical Materials
T1  - Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications
EP  - 410
SP  - 405
VL  - 92
DO  - 10.1016/j.optmat.2019.05.012
ER  - 

@article{
author = "Abozaid, Rouaida Mohamed and Lazarević, Zorica Ž. and Radović, Ivana and Gilić, Martina and Sević, Dragutin M. and Rabasović, Maja S. and Radojević, Vesna",
year = "2019",
abstract = "Processing and characterization of polymer nanocomposites based on poly (methyl methacrylate) (PMMA) matrix with embedded core-shell CdSe/ZnS quantum dots (QD's) were presented in this work. The aim is to preserve the optical activity of QD's in nanocomposite processing with improved mechanical properties. The modification of QD's CdSe/ZnS-PMMA interface was achieved with 3-mercaptopropyltrimethoxysilane (MPTMS). Nanocomposites were processed by solution casting. The samples of pure PMMA, and composites with unmodified and silane modified QD's CdSe/ZnS were processed. FTIR analysis revealed modification of QD's with silane and characteristic bonding with PMMA matrix. Raman spectrum confirms a presence of alloyed layer at the core-shell interface. Time-resolved laser induced fluorescence measurements confirmed slight blue shift in QD's CdSe/ZnS-PMMA composite without interface modification, while there was a slight red shift with modified particles. Oxidation effects in quantum dots were removed with the use of PMMA as a host, and the core remained active, which was confirmed with FTIR analysis and time-resolved laser induced fluorescence measurements.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Optical Materials",
title = "Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications",
pages = "410-405",
volume = "92",
doi = "10.1016/j.optmat.2019.05.012"
}

Abozaid, R. M., Lazarević, Z. Ž., Radović, I., Gilić, M., Sević, D. M., Rabasović, M. S.,& Radojević, V.. (2019). Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications. in Optical Materials
Elsevier Science Bv, Amsterdam., 92, 405-410.
https://doi.org/10.1016/j.optmat.2019.05.012

Abozaid RM, Lazarević ZŽ, Radović I, Gilić M, Sević DM, Rabasović MS, Radojević V. Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications. in Optical Materials. 2019;92:405-410.
doi:10.1016/j.optmat.2019.05.012 .

Abozaid, Rouaida Mohamed, Lazarević, Zorica Ž., Radović, Ivana, Gilić, Martina, Sević, Dragutin M., Rabasović, Maja S., Radojević, Vesna, "Optical properties and fluorescence of quantum dots CdSe/ZnS-PMMA composite films with interface modifications" in Optical Materials, 92 (2019):405-410,
https://doi.org/10.1016/j.optmat.2019.05.012 . .

TY  - JOUR
AU  - Abozaid, Rouaida Mohamed
AU  - Lazarević, Zorica Z.
AU  - Tomić, Nataša
AU  - Milutinović, Aleksandra
AU  - Sević, Dragutin M.
AU  - Rabasović, Maja S.
AU  - Radojević, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4145
AB  - In this article, we report characterization of the layered composite fabricated from Nd3+ doped calcium twigstate single crystal (CaWO4 :Nd3+) and poly(methyl methacrylate) - PMMA with various organic-inorganic interfaces: CaWO4:Nd3+/MPTMS, CaWO4:Nd3+/PMMA and CaWO4:Nd3+/MPTMS/PMMA, a novel approach to optical composite materials. A trivalent neodymium-doped CaWO4 single crystal was grown by the Czochralski method. Poly(methyl methacrylate) - PMMA, was used as a protective polymer coating and (3-mercaptopropyl) trimethoxy silane (MPTMS), with aim to provide better adhesion between the crystal surface and the polymer in the composite. The optical properties of the crystal plates with various layers applied on surface were characterized using FTIR absorption, IR reflectivity, Raman and photoluminescence spectroscopy. Performed tests on the structural, optical and photo-luminescent properties of composites can facilitate the research of potential applications in micro- and optoelectronics. Hardness of CaWO4:Nd3+ before and after surface modification was determined by micro Vickers hardness test. The improved hardness of composite with the use of the MPTMS as an adhesion primer before PMMA was achieved. FTIR spectroscopy indicates the establishing of chemical bonding between single crystal layer, silane and polymer layer. Raman and PL spectroscopy confirm that optical properties of crystal with polymer layers were preserved.
PB  - Elsevier, Amsterdam
T2  - Optical Materials
T1  - Optical properties CaWO4:Nd3+/PMMA composite layered structures
VL  - 96
DO  - 10.1016/j.optmat.2019.109361
ER  - 

@article{
author = "Abozaid, Rouaida Mohamed and Lazarević, Zorica Z. and Tomić, Nataša and Milutinović, Aleksandra and Sević, Dragutin M. and Rabasović, Maja S. and Radojević, Vesna",
year = "2019",
abstract = "In this article, we report characterization of the layered composite fabricated from Nd3+ doped calcium twigstate single crystal (CaWO4 :Nd3+) and poly(methyl methacrylate) - PMMA with various organic-inorganic interfaces: CaWO4:Nd3+/MPTMS, CaWO4:Nd3+/PMMA and CaWO4:Nd3+/MPTMS/PMMA, a novel approach to optical composite materials. A trivalent neodymium-doped CaWO4 single crystal was grown by the Czochralski method. Poly(methyl methacrylate) - PMMA, was used as a protective polymer coating and (3-mercaptopropyl) trimethoxy silane (MPTMS), with aim to provide better adhesion between the crystal surface and the polymer in the composite. The optical properties of the crystal plates with various layers applied on surface were characterized using FTIR absorption, IR reflectivity, Raman and photoluminescence spectroscopy. Performed tests on the structural, optical and photo-luminescent properties of composites can facilitate the research of potential applications in micro- and optoelectronics. Hardness of CaWO4:Nd3+ before and after surface modification was determined by micro Vickers hardness test. The improved hardness of composite with the use of the MPTMS as an adhesion primer before PMMA was achieved. FTIR spectroscopy indicates the establishing of chemical bonding between single crystal layer, silane and polymer layer. Raman and PL spectroscopy confirm that optical properties of crystal with polymer layers were preserved.",
publisher = "Elsevier, Amsterdam",
journal = "Optical Materials",
title = "Optical properties CaWO4:Nd3+/PMMA composite layered structures",
volume = "96",
doi = "10.1016/j.optmat.2019.109361"
}

Abozaid, R. M., Lazarević, Z. Z., Tomić, N., Milutinović, A., Sević, D. M., Rabasović, M. S.,& Radojević, V.. (2019). Optical properties CaWO4:Nd3+/PMMA composite layered structures. in Optical Materials
Elsevier, Amsterdam., 96.
https://doi.org/10.1016/j.optmat.2019.109361

Abozaid RM, Lazarević ZZ, Tomić N, Milutinović A, Sević DM, Rabasović MS, Radojević V. Optical properties CaWO4:Nd3+/PMMA composite layered structures. in Optical Materials. 2019;96.
doi:10.1016/j.optmat.2019.109361 .

Abozaid, Rouaida Mohamed, Lazarević, Zorica Z., Tomić, Nataša, Milutinović, Aleksandra, Sević, Dragutin M., Rabasović, Maja S., Radojević, Vesna, "Optical properties CaWO4:Nd3+/PMMA composite layered structures" in Optical Materials, 96 (2019),
https://doi.org/10.1016/j.optmat.2019.109361 . .

TY  - JOUR
AU  - El-Swie, H.
AU  - Radović, Ivana
AU  - Stojanović, Dušica
AU  - Sević, Dragutin M.
AU  - Rabasović, Maja S.
AU  - Uskoković, Petar
AU  - Radojević, Vesna
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3493
AB  - In the present paper an effort has been made to investigate processing and characterization of composite poly (methyl methacrylate)-cadmium selenide (PMMA-CdSe). Thin films of pure PMMA and composites with 0.06 % wt. CdSe quantum dots nanoparticles were made using solution casting method. Characterization of starting components and composites was performed in order to obtain information of their morphology, structure, thermal stability, mechanical and optical properties. Nanoindentation revealed mechanical improvements with the addition of the crystal through reduced elastic modulus and hardness values. DSC analysis has shown an increase in T-g for composite with CdSe. Optical studies by time resolved laser induced fluorescence (TR-LIF) showed that the size-tunable optical properties can be achieved in the polymer films by addition of quantum dots.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Journal of Optoelectronics and Advanced Materials
T1  - Fluorescence, thermal and mechanical properties of PMMA-CdSe QD film
EP  - 233
IS  - 3-4
SP  - 228
VL  - 19
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3493
ER  - 

@article{
author = "El-Swie, H. and Radović, Ivana and Stojanović, Dušica and Sević, Dragutin M. and Rabasović, Maja S. and Uskoković, Petar and Radojević, Vesna",
year = "2017",
abstract = "In the present paper an effort has been made to investigate processing and characterization of composite poly (methyl methacrylate)-cadmium selenide (PMMA-CdSe). Thin films of pure PMMA and composites with 0.06 % wt. CdSe quantum dots nanoparticles were made using solution casting method. Characterization of starting components and composites was performed in order to obtain information of their morphology, structure, thermal stability, mechanical and optical properties. Nanoindentation revealed mechanical improvements with the addition of the crystal through reduced elastic modulus and hardness values. DSC analysis has shown an increase in T-g for composite with CdSe. Optical studies by time resolved laser induced fluorescence (TR-LIF) showed that the size-tunable optical properties can be achieved in the polymer films by addition of quantum dots.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "Fluorescence, thermal and mechanical properties of PMMA-CdSe QD film",
pages = "233-228",
number = "3-4",
volume = "19",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3493"
}

El-Swie, H., Radović, I., Stojanović, D., Sević, D. M., Rabasović, M. S., Uskoković, P.,& Radojević, V.. (2017). Fluorescence, thermal and mechanical properties of PMMA-CdSe QD film. in Journal of Optoelectronics and Advanced Materials
Natl Inst Optoelectronics, Bucharest-Magurele., 19(3-4), 228-233.
https://hdl.handle.net/21.15107/rcub_technorep_3493

El-Swie H, Radović I, Stojanović D, Sević DM, Rabasović MS, Uskoković P, Radojević V. Fluorescence, thermal and mechanical properties of PMMA-CdSe QD film. in Journal of Optoelectronics and Advanced Materials. 2017;19(3-4):228-233.
https://hdl.handle.net/21.15107/rcub_technorep_3493 .

El-Swie, H., Radović, Ivana, Stojanović, Dušica, Sević, Dragutin M., Rabasović, Maja S., Uskoković, Petar, Radojević, Vesna, "Fluorescence, thermal and mechanical properties of PMMA-CdSe QD film" in Journal of Optoelectronics and Advanced Materials, 19, no. 3-4 (2017):228-233,
https://hdl.handle.net/21.15107/rcub_technorep_3493 .

TY  - JOUR
AU  - Dojčilović, Radovan
AU  - Pajović, Jelena D.
AU  - Božanić, Dušan K.
AU  - Vodnik, Vesna
AU  - Dimitrijević-Branković, Suzana
AU  - Milosavljević, Aleksandar R.
AU  - Kascakova, Slavka
AU  - Refregiers, Matthieu
AU  - Đoković, Vladimir
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3454
AB  - The investigation of the interaction of silver nanoparticles and live bacteria cells is of particular importance for understanding and controlling their bactericidal properties. In this study, the process of internalization of silver nanoparticles in Escherichia coli cells was followed by means of synchrotron excitation deep ultraviolet (DUV) fluorescence imaging. Antimicrobial nanostructures that can absorb and emit light in the UV region were prepared by functionalization of silver nanoparticles with tryptophan amino acid and used as environmentally sensitive fluorescent probes. The nanostructures were characterized by morphological (TEM) and spectroscopic methods (UV-vis, FTIR, XPS, and photoluminescence). The TEM images and the analyses of the UV-vis spectra suggested that the addition of tryptophan led to the formation of hybrid nanostructures with pronounced eccentricity and larger sizes with respect to that of the initial silver nanoparticles. The DUV imaging showed that it was possible to distinguish the fluorescent signal pertaining to silver-tryptophan nanostructures from the autofluorescence of the bacteria. The spatial resolution of the fluorescence images was 154 nm which was sufficient to perform analyses of the accumulation of the nanostructures within a single bacterium. The DUV imaging results imply that the tryptophan-functionalized silver nanoparticles interact with cell membranes via insertion of the amino acid into the phospholipid bilayer and enter the cells.
PB  - Royal Soc Chemistry, Cambridge
T2  - Analyst
T1  - A fluorescent nanoprobe for single bacterium tracking: functionalization of silver nanoparticles with tryptophan to probe the nanoparticle accumulation with single cell resolution
EP  - 1996
IS  - 6
SP  - 1988
VL  - 141
DO  - 10.1039/c5an02358k
ER  - 

@article{
author = "Dojčilović, Radovan and Pajović, Jelena D. and Božanić, Dušan K. and Vodnik, Vesna and Dimitrijević-Branković, Suzana and Milosavljević, Aleksandar R. and Kascakova, Slavka and Refregiers, Matthieu and Đoković, Vladimir",
year = "2016",
abstract = "The investigation of the interaction of silver nanoparticles and live bacteria cells is of particular importance for understanding and controlling their bactericidal properties. In this study, the process of internalization of silver nanoparticles in Escherichia coli cells was followed by means of synchrotron excitation deep ultraviolet (DUV) fluorescence imaging. Antimicrobial nanostructures that can absorb and emit light in the UV region were prepared by functionalization of silver nanoparticles with tryptophan amino acid and used as environmentally sensitive fluorescent probes. The nanostructures were characterized by morphological (TEM) and spectroscopic methods (UV-vis, FTIR, XPS, and photoluminescence). The TEM images and the analyses of the UV-vis spectra suggested that the addition of tryptophan led to the formation of hybrid nanostructures with pronounced eccentricity and larger sizes with respect to that of the initial silver nanoparticles. The DUV imaging showed that it was possible to distinguish the fluorescent signal pertaining to silver-tryptophan nanostructures from the autofluorescence of the bacteria. The spatial resolution of the fluorescence images was 154 nm which was sufficient to perform analyses of the accumulation of the nanostructures within a single bacterium. The DUV imaging results imply that the tryptophan-functionalized silver nanoparticles interact with cell membranes via insertion of the amino acid into the phospholipid bilayer and enter the cells.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Analyst",
title = "A fluorescent nanoprobe for single bacterium tracking: functionalization of silver nanoparticles with tryptophan to probe the nanoparticle accumulation with single cell resolution",
pages = "1996-1988",
number = "6",
volume = "141",
doi = "10.1039/c5an02358k"
}

Dojčilović, R., Pajović, J. D., Božanić, D. K., Vodnik, V., Dimitrijević-Branković, S., Milosavljević, A. R., Kascakova, S., Refregiers, M.,& Đoković, V.. (2016). A fluorescent nanoprobe for single bacterium tracking: functionalization of silver nanoparticles with tryptophan to probe the nanoparticle accumulation with single cell resolution. in Analyst
Royal Soc Chemistry, Cambridge., 141(6), 1988-1996.
https://doi.org/10.1039/c5an02358k

Dojčilović R, Pajović JD, Božanić DK, Vodnik V, Dimitrijević-Branković S, Milosavljević AR, Kascakova S, Refregiers M, Đoković V. A fluorescent nanoprobe for single bacterium tracking: functionalization of silver nanoparticles with tryptophan to probe the nanoparticle accumulation with single cell resolution. in Analyst. 2016;141(6):1988-1996.
doi:10.1039/c5an02358k .

Dojčilović, Radovan, Pajović, Jelena D., Božanić, Dušan K., Vodnik, Vesna, Dimitrijević-Branković, Suzana, Milosavljević, Aleksandar R., Kascakova, Slavka, Refregiers, Matthieu, Đoković, Vladimir, "A fluorescent nanoprobe for single bacterium tracking: functionalization of silver nanoparticles with tryptophan to probe the nanoparticle accumulation with single cell resolution" in Analyst, 141, no. 6 (2016):1988-1996,
https://doi.org/10.1039/c5an02358k . .

TY  - JOUR
AU  - Pajović, Jelena D.
AU  - Dojčilović, Radovan
AU  - Božanić, Dušan K.
AU  - Kascakova, Slavka
AU  - Refregiers, Matthieu
AU  - Dimitrijević-Branković, Suzana
AU  - Vodnik, Vesna
AU  - Milosavljević, Aleksandar R.
AU  - Piscopiello, Emanuela
AU  - Luyt, Adriaan S.
AU  - Đoković, Vladimir
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3102
AB  - Biocompatible fluorescent nanostructures were prepared by a functionalization of gold nanoparticles with the amino acid tryptophan. The gold-tryptophan bioconjugates were investigated by TEM and HRTEM and various spectroscopy methods (XPS, FTIR, UV-vis and photoluminescence). It was found that the gold nanoparticles, initially 8 nm in diameter, aggregate in the presence of the amino acid. From the XPS and FTIR spectroscopy results, it was concluded that the tryptophan gold interactions mainly take place via indole and carboxyl groups. Although the indole group is involved in the interaction with the gold surfaces, the tryptophan-gold hybrids showed strong fluorescence due to the presence of multilayers of tryptophan. Deep ultra violet (DUV) imaging performed at the SOLEIL synchrotron showed that It is possible to detect these hybrid nanostructures within Escherichia coli cells.
PB  - Elsevier Science Bv, Amsterdam
T2  - Colloids and Surfaces B-Biointerfaces
T1  - Tryptophan-functionalized gold nanoparticles for deep UV imaging of microbial cells
EP  - 750
SP  - 742
VL  - 135
DO  - 10.1016/j.colsurfb.2015.08.050
ER  - 

@article{
author = "Pajović, Jelena D. and Dojčilović, Radovan and Božanić, Dušan K. and Kascakova, Slavka and Refregiers, Matthieu and Dimitrijević-Branković, Suzana and Vodnik, Vesna and Milosavljević, Aleksandar R. and Piscopiello, Emanuela and Luyt, Adriaan S. and Đoković, Vladimir",
year = "2015",
abstract = "Biocompatible fluorescent nanostructures were prepared by a functionalization of gold nanoparticles with the amino acid tryptophan. The gold-tryptophan bioconjugates were investigated by TEM and HRTEM and various spectroscopy methods (XPS, FTIR, UV-vis and photoluminescence). It was found that the gold nanoparticles, initially 8 nm in diameter, aggregate in the presence of the amino acid. From the XPS and FTIR spectroscopy results, it was concluded that the tryptophan gold interactions mainly take place via indole and carboxyl groups. Although the indole group is involved in the interaction with the gold surfaces, the tryptophan-gold hybrids showed strong fluorescence due to the presence of multilayers of tryptophan. Deep ultra violet (DUV) imaging performed at the SOLEIL synchrotron showed that It is possible to detect these hybrid nanostructures within Escherichia coli cells.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Colloids and Surfaces B-Biointerfaces",
title = "Tryptophan-functionalized gold nanoparticles for deep UV imaging of microbial cells",
pages = "750-742",
volume = "135",
doi = "10.1016/j.colsurfb.2015.08.050"
}

Pajović, J. D., Dojčilović, R., Božanić, D. K., Kascakova, S., Refregiers, M., Dimitrijević-Branković, S., Vodnik, V., Milosavljević, A. R., Piscopiello, E., Luyt, A. S.,& Đoković, V.. (2015). Tryptophan-functionalized gold nanoparticles for deep UV imaging of microbial cells. in Colloids and Surfaces B-Biointerfaces
Elsevier Science Bv, Amsterdam., 135, 742-750.
https://doi.org/10.1016/j.colsurfb.2015.08.050

Pajović JD, Dojčilović R, Božanić DK, Kascakova S, Refregiers M, Dimitrijević-Branković S, Vodnik V, Milosavljević AR, Piscopiello E, Luyt AS, Đoković V. Tryptophan-functionalized gold nanoparticles for deep UV imaging of microbial cells. in Colloids and Surfaces B-Biointerfaces. 2015;135:742-750.
doi:10.1016/j.colsurfb.2015.08.050 .

Pajović, Jelena D., Dojčilović, Radovan, Božanić, Dušan K., Kascakova, Slavka, Refregiers, Matthieu, Dimitrijević-Branković, Suzana, Vodnik, Vesna, Milosavljević, Aleksandar R., Piscopiello, Emanuela, Luyt, Adriaan S., Đoković, Vladimir, "Tryptophan-functionalized gold nanoparticles for deep UV imaging of microbial cells" in Colloids and Surfaces B-Biointerfaces, 135 (2015):742-750,
https://doi.org/10.1016/j.colsurfb.2015.08.050 . .

TY  - JOUR
AU  - Dukali, Ramdan M.
AU  - Radović, Ivana M.
AU  - Stojanović, Dušica
AU  - Sević, Dragutin M.
AU  - Radojević, Vesna
AU  - Jocić, Dragan
AU  - Aleksić, Radoslav
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2693
AB  - The electrospinning of rhodamine B (RhB)-doped poly(methyl methacrylate) (PMMA) is presented as a promising technique for processing photoluminescent nanofibers. Nanofibers with concentrations of RhB in PMMA between 0.05 and 2.0 wt. % were studied. The FTIR spectrum, fiber morphology, thermal properties and optical properties of the nanofibers were investigated. Smooth, bead-free and nonporous nanofibers were obtained. Differential scanning calorimetry (DSC) results revealed that the glass transition temperature of the PMMA (T-g) increased with the increasing of RhB content up to 0.5 wt. % and thereafter decreased. The laser induced fluorescence (LIF) technique was used to study the fluorescence properties of the nanofibers. The maximum fluorescence emission was observed at a concentration of RhB of 0.2 wt. %.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Electrospinning of the laser dye rhodamine B-doped poly(methyl methacrylate) nanofibers
EP  - 880
IS  - 7
SP  - 867
VL  - 79
DO  - 10.2298/JSC131014011D
ER  - 

@article{
author = "Dukali, Ramdan M. and Radović, Ivana M. and Stojanović, Dušica and Sević, Dragutin M. and Radojević, Vesna and Jocić, Dragan and Aleksić, Radoslav",
year = "2014",
abstract = "The electrospinning of rhodamine B (RhB)-doped poly(methyl methacrylate) (PMMA) is presented as a promising technique for processing photoluminescent nanofibers. Nanofibers with concentrations of RhB in PMMA between 0.05 and 2.0 wt. % were studied. The FTIR spectrum, fiber morphology, thermal properties and optical properties of the nanofibers were investigated. Smooth, bead-free and nonporous nanofibers were obtained. Differential scanning calorimetry (DSC) results revealed that the glass transition temperature of the PMMA (T-g) increased with the increasing of RhB content up to 0.5 wt. % and thereafter decreased. The laser induced fluorescence (LIF) technique was used to study the fluorescence properties of the nanofibers. The maximum fluorescence emission was observed at a concentration of RhB of 0.2 wt. %.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Electrospinning of the laser dye rhodamine B-doped poly(methyl methacrylate) nanofibers",
pages = "880-867",
number = "7",
volume = "79",
doi = "10.2298/JSC131014011D"
}

Dukali, R. M., Radović, I. M., Stojanović, D., Sević, D. M., Radojević, V., Jocić, D.,& Aleksić, R.. (2014). Electrospinning of the laser dye rhodamine B-doped poly(methyl methacrylate) nanofibers. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 79(7), 867-880.
https://doi.org/10.2298/JSC131014011D

Dukali RM, Radović IM, Stojanović D, Sević DM, Radojević V, Jocić D, Aleksić R. Electrospinning of the laser dye rhodamine B-doped poly(methyl methacrylate) nanofibers. in Journal of the Serbian Chemical Society. 2014;79(7):867-880.
doi:10.2298/JSC131014011D .

Dukali, Ramdan M., Radović, Ivana M., Stojanović, Dušica, Sević, Dragutin M., Radojević, Vesna, Jocić, Dragan, Aleksić, Radoslav, "Electrospinning of the laser dye rhodamine B-doped poly(methyl methacrylate) nanofibers" in Journal of the Serbian Chemical Society, 79, no. 7 (2014):867-880,
https://doi.org/10.2298/JSC131014011D . .