Božanić, Dušan K.

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orcid::0000-0001-8246-9635
  • Božanić, Dušan K. (11)

Author's Bibliography

Interaction of amino acid-functionalized silver nanoparticles and Candida albicans polymorphs: A deep-UV fluorescence imaging study

Dojčilović, Radovan; Pajović, Jelena D.; Božanić, Dušan K.; Bogdanović, Una; Vodnik, Vesna; Dimitrijević-Branković, Suzana; Miljković, Miona; Kascakova, Slavka; Refregiers, Matthieu; Đoković, Vladimir

(Elsevier Science Bv, Amsterdam, 2017)

TY  - JOUR
AU  - Dojčilović, Radovan
AU  - Pajović, Jelena D.
AU  - Božanić, Dušan K.
AU  - Bogdanović, Una
AU  - Vodnik, Vesna
AU  - Dimitrijević-Branković, Suzana
AU  - Miljković, Miona
AU  - Kascakova, Slavka
AU  - Refregiers, Matthieu
AU  - Đoković, Vladimir
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3726
AB  - The interaction of the tryptophan functionalized Ag nanoparticles and live Candida albicans cells was studied by synchrotron excitation deep-ultraviolet (DUV) fluorescence imaging at the DISCO beamline of Synchrotron SOLEIL. DUV imaging showed that incubation of the fungus with functionalized nanoparticles results in significant increase in the fluorescence signal. The analysis of the images revealed that the interaction of the nanoparticles with (pseudo)hyphae polymorphs of the diploid fungus was less pronounced than in the case of yeast cells or budding spores. The changes in the intensity of the fluorescence signals of the cells after incubation were followed in [327-353 nm] and [370-410 nm] spectral ranges that correspond to the fluorescence of tryptophan in non-polar and polar environment, respectively. As a consequence of the environmental sensitivity of the silver-tryptophan fluorescent nanoprobe, we were able to determine the possible accumulation sites of the nanoparticles. The analysis of the intensity decay kinetics showed that the photobleaching effects were more pronounced in the case of the functionalized nanoparticle treated cells. The results of time-integrated emission in the mentioned spectral ranges suggested that the nanoparticles penetrate the cells, but that the majority of the nanoparticles attach to the cells' surfaces.
PB  - Elsevier Science Bv, Amsterdam
T2  - Colloids and Surfaces B-Biointerfaces
T1  - Interaction of amino acid-functionalized silver nanoparticles and Candida albicans polymorphs: A deep-UV fluorescence imaging study
EP  - 348
SP  - 341
VL  - 155
DO  - 10.1016/j.colsurfb.2017.04.044
ER  - 
@article{
author = "Dojčilović, Radovan and Pajović, Jelena D. and Božanić, Dušan K. and Bogdanović, Una and Vodnik, Vesna and Dimitrijević-Branković, Suzana and Miljković, Miona and Kascakova, Slavka and Refregiers, Matthieu and Đoković, Vladimir",
year = "2017",
abstract = "The interaction of the tryptophan functionalized Ag nanoparticles and live Candida albicans cells was studied by synchrotron excitation deep-ultraviolet (DUV) fluorescence imaging at the DISCO beamline of Synchrotron SOLEIL. DUV imaging showed that incubation of the fungus with functionalized nanoparticles results in significant increase in the fluorescence signal. The analysis of the images revealed that the interaction of the nanoparticles with (pseudo)hyphae polymorphs of the diploid fungus was less pronounced than in the case of yeast cells or budding spores. The changes in the intensity of the fluorescence signals of the cells after incubation were followed in [327-353 nm] and [370-410 nm] spectral ranges that correspond to the fluorescence of tryptophan in non-polar and polar environment, respectively. As a consequence of the environmental sensitivity of the silver-tryptophan fluorescent nanoprobe, we were able to determine the possible accumulation sites of the nanoparticles. The analysis of the intensity decay kinetics showed that the photobleaching effects were more pronounced in the case of the functionalized nanoparticle treated cells. The results of time-integrated emission in the mentioned spectral ranges suggested that the nanoparticles penetrate the cells, but that the majority of the nanoparticles attach to the cells' surfaces.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Colloids and Surfaces B-Biointerfaces",
title = "Interaction of amino acid-functionalized silver nanoparticles and Candida albicans polymorphs: A deep-UV fluorescence imaging study",
pages = "348-341",
volume = "155",
doi = "10.1016/j.colsurfb.2017.04.044"
}
Dojčilović, R., Pajović, J. D., Božanić, D. K., Bogdanović, U., Vodnik, V., Dimitrijević-Branković, S., Miljković, M., Kascakova, S., Refregiers, M.,& Đoković, V.. (2017). Interaction of amino acid-functionalized silver nanoparticles and Candida albicans polymorphs: A deep-UV fluorescence imaging study. in Colloids and Surfaces B-Biointerfaces
Elsevier Science Bv, Amsterdam., 155, 341-348.
https://doi.org/10.1016/j.colsurfb.2017.04.044
Dojčilović R, Pajović JD, Božanić DK, Bogdanović U, Vodnik V, Dimitrijević-Branković S, Miljković M, Kascakova S, Refregiers M, Đoković V. Interaction of amino acid-functionalized silver nanoparticles and Candida albicans polymorphs: A deep-UV fluorescence imaging study. in Colloids and Surfaces B-Biointerfaces. 2017;155:341-348.
doi:10.1016/j.colsurfb.2017.04.044 .
Dojčilović, Radovan, Pajović, Jelena D., Božanić, Dušan K., Bogdanović, Una, Vodnik, Vesna, Dimitrijević-Branković, Suzana, Miljković, Miona, Kascakova, Slavka, Refregiers, Matthieu, Đoković, Vladimir, "Interaction of amino acid-functionalized silver nanoparticles and Candida albicans polymorphs: A deep-UV fluorescence imaging study" in Colloids and Surfaces B-Biointerfaces, 155 (2017):341-348,
https://doi.org/10.1016/j.colsurfb.2017.04.044 . .
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Deep UV fluorescence imaging study of Candida albicans cells treated with gold-riboflavin hydrocolloids

Pajović, Jelena D.; Dojčilović, Radovan; Božanić, Dušan K.; Vodnik, Vesna; Dimitrijević-Branković, Suzana; Kascakova, Slavka; Refregiers, Matthieu; Markelić, Milica; Đoković, Vladimir

(Springer, Dordrecht, 2016)

TY  - JOUR
AU  - Pajović, Jelena D.
AU  - Dojčilović, Radovan
AU  - Božanić, Dušan K.
AU  - Vodnik, Vesna
AU  - Dimitrijević-Branković, Suzana
AU  - Kascakova, Slavka
AU  - Refregiers, Matthieu
AU  - Markelić, Milica
AU  - Đoković, Vladimir
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3256
AB  - Fluorescent nanostructures were prepared by functionalization of gold nanoparticles with riboflavin molecules and used as probes for synchrotron radiation deep ultraviolet (SR-DUV) fluorescence imaging of gluteraldehyde-fixed Candida albicans cells. The nanoparticles were characterized by transmission electron microscopy (TEM) and optical spectroscopy techniques. The TEM analysis showed that the nanostructures were 6 nm in diameter, while the results of the fluorescence spectroscopies confirmed the photoluminescence of the nanoparticles. The SR-DUV imaging showed that it was possible to distinguish the fluorescence of the nanoparticles from the autofluorescence of the cells, as well as that the local maxima of the signal pertaining to the fluorescence of goldriboflavin nanostructures were mostly positioned on the surfaces of the C. albicans cells of spherical morphology.
PB  - Springer, Dordrecht
T2  - Optical and Quantum Electronics
T1  - Deep UV fluorescence imaging study of Candida albicans cells treated with gold-riboflavin hydrocolloids
IS  - 6
VL  - 48
DO  - 10.1007/s11082-016-0578-y
ER  - 
@article{
author = "Pajović, Jelena D. and Dojčilović, Radovan and Božanić, Dušan K. and Vodnik, Vesna and Dimitrijević-Branković, Suzana and Kascakova, Slavka and Refregiers, Matthieu and Markelić, Milica and Đoković, Vladimir",
year = "2016",
abstract = "Fluorescent nanostructures were prepared by functionalization of gold nanoparticles with riboflavin molecules and used as probes for synchrotron radiation deep ultraviolet (SR-DUV) fluorescence imaging of gluteraldehyde-fixed Candida albicans cells. The nanoparticles were characterized by transmission electron microscopy (TEM) and optical spectroscopy techniques. The TEM analysis showed that the nanostructures were 6 nm in diameter, while the results of the fluorescence spectroscopies confirmed the photoluminescence of the nanoparticles. The SR-DUV imaging showed that it was possible to distinguish the fluorescence of the nanoparticles from the autofluorescence of the cells, as well as that the local maxima of the signal pertaining to the fluorescence of goldriboflavin nanostructures were mostly positioned on the surfaces of the C. albicans cells of spherical morphology.",
publisher = "Springer, Dordrecht",
journal = "Optical and Quantum Electronics",
title = "Deep UV fluorescence imaging study of Candida albicans cells treated with gold-riboflavin hydrocolloids",
number = "6",
volume = "48",
doi = "10.1007/s11082-016-0578-y"
}
Pajović, J. D., Dojčilović, R., Božanić, D. K., Vodnik, V., Dimitrijević-Branković, S., Kascakova, S., Refregiers, M., Markelić, M.,& Đoković, V.. (2016). Deep UV fluorescence imaging study of Candida albicans cells treated with gold-riboflavin hydrocolloids. in Optical and Quantum Electronics
Springer, Dordrecht., 48(6).
https://doi.org/10.1007/s11082-016-0578-y
Pajović JD, Dojčilović R, Božanić DK, Vodnik V, Dimitrijević-Branković S, Kascakova S, Refregiers M, Markelić M, Đoković V. Deep UV fluorescence imaging study of Candida albicans cells treated with gold-riboflavin hydrocolloids. in Optical and Quantum Electronics. 2016;48(6).
doi:10.1007/s11082-016-0578-y .
Pajović, Jelena D., Dojčilović, Radovan, Božanić, Dušan K., Vodnik, Vesna, Dimitrijević-Branković, Suzana, Kascakova, Slavka, Refregiers, Matthieu, Markelić, Milica, Đoković, Vladimir, "Deep UV fluorescence imaging study of Candida albicans cells treated with gold-riboflavin hydrocolloids" in Optical and Quantum Electronics, 48, no. 6 (2016),
https://doi.org/10.1007/s11082-016-0578-y . .
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A fluorescent nanoprobe for single bacterium tracking: functionalization of silver nanoparticles with tryptophan to probe the nanoparticle accumulation with single cell resolution

Dojčilović, Radovan; Pajović, Jelena D.; Božanić, Dušan K.; Vodnik, Vesna; Dimitrijević-Branković, Suzana; Milosavljević, Aleksandar R.; Kascakova, Slavka; Refregiers, Matthieu; Đoković, Vladimir

(Royal Soc Chemistry, Cambridge, 2016)

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 . .
13
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13

Tryptophan-functionalized gold nanoparticles for deep UV imaging of microbial cells

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

(Elsevier Science Bv, Amsterdam, 2015)

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 . .
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Viscoelastic properties and antimicrobial activity of cellulose fiber sheets impregnated with Ag nanoparticles

Csoka, Levente; Božanić, Dušan K.; Nagy, Veronika; Dimitrijević-Branković, Suzana; Luyt, Adriaan S.; Grozdits, George; Đoković, Vladimir

(Elsevier Sci Ltd, Oxford, 2012)

TY  - JOUR
AU  - Csoka, Levente
AU  - Božanić, Dušan K.
AU  - Nagy, Veronika
AU  - Dimitrijević-Branković, Suzana
AU  - Luyt, Adriaan S.
AU  - Grozdits, George
AU  - Đoković, Vladimir
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2110
AB  - A silver nanoparticle colloid was prepared by a modified Tollens method using D-glucose as the reduction agent. The obtained nanoparticles were used for the modification of pine, linter and recycled cellulose fibers. Although the silver contents were relatively low (0.05-0.13 wt.%), the cellulose-sheets prepared from the modified fibers show improved mechanical and viscoelastic properties. The tensile index (strength) increased with up to 30% in comparison to the index of the sheets obtained from the untreated fibers. The influence of the nanoparticles on the viscoelastic properties of the cellulose sheets was investigated by dynamic mechanical analysis (DMA) in the temperature range from -120 to 20 degrees C and with a force frequency of 100Hz. A broad relaxation transition positioned at -80 degrees C was observed in the loss modulus spectrum of all the cellulose sheets, while the Ag-modified sheets exhibited higher storage moduli values in the whole temperature range. The antimicrobial activity tests show that the pine, silver and recycled cellulose fiber sheets with silver nanoparticles can be successfully employed to prevent the viability and growth of the common pathogens Staphylococcus aureus, Escherichia coli and Candida albicans.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Viscoelastic properties and antimicrobial activity of cellulose fiber sheets impregnated with Ag nanoparticles
EP  - 1146
IS  - 2
SP  - 1139
VL  - 90
DO  - 10.1016/j.carbpol.2012.06.065
ER  - 
@article{
author = "Csoka, Levente and Božanić, Dušan K. and Nagy, Veronika and Dimitrijević-Branković, Suzana and Luyt, Adriaan S. and Grozdits, George and Đoković, Vladimir",
year = "2012",
abstract = "A silver nanoparticle colloid was prepared by a modified Tollens method using D-glucose as the reduction agent. The obtained nanoparticles were used for the modification of pine, linter and recycled cellulose fibers. Although the silver contents were relatively low (0.05-0.13 wt.%), the cellulose-sheets prepared from the modified fibers show improved mechanical and viscoelastic properties. The tensile index (strength) increased with up to 30% in comparison to the index of the sheets obtained from the untreated fibers. The influence of the nanoparticles on the viscoelastic properties of the cellulose sheets was investigated by dynamic mechanical analysis (DMA) in the temperature range from -120 to 20 degrees C and with a force frequency of 100Hz. A broad relaxation transition positioned at -80 degrees C was observed in the loss modulus spectrum of all the cellulose sheets, while the Ag-modified sheets exhibited higher storage moduli values in the whole temperature range. The antimicrobial activity tests show that the pine, silver and recycled cellulose fiber sheets with silver nanoparticles can be successfully employed to prevent the viability and growth of the common pathogens Staphylococcus aureus, Escherichia coli and Candida albicans.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Viscoelastic properties and antimicrobial activity of cellulose fiber sheets impregnated with Ag nanoparticles",
pages = "1146-1139",
number = "2",
volume = "90",
doi = "10.1016/j.carbpol.2012.06.065"
}
Csoka, L., Božanić, D. K., Nagy, V., Dimitrijević-Branković, S., Luyt, A. S., Grozdits, G.,& Đoković, V.. (2012). Viscoelastic properties and antimicrobial activity of cellulose fiber sheets impregnated with Ag nanoparticles. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 90(2), 1139-1146.
https://doi.org/10.1016/j.carbpol.2012.06.065
Csoka L, Božanić DK, Nagy V, Dimitrijević-Branković S, Luyt AS, Grozdits G, Đoković V. Viscoelastic properties and antimicrobial activity of cellulose fiber sheets impregnated with Ag nanoparticles. in Carbohydrate Polymers. 2012;90(2):1139-1146.
doi:10.1016/j.carbpol.2012.06.065 .
Csoka, Levente, Božanić, Dušan K., Nagy, Veronika, Dimitrijević-Branković, Suzana, Luyt, Adriaan S., Grozdits, George, Đoković, Vladimir, "Viscoelastic properties and antimicrobial activity of cellulose fiber sheets impregnated with Ag nanoparticles" in Carbohydrate Polymers, 90, no. 2 (2012):1139-1146,
https://doi.org/10.1016/j.carbpol.2012.06.065 . .
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30

Fabrication and antibacterial properties of ZnO-alginate nanocomposites

Trandafilović, Lidija V.; Božanić, Dušan K.; Dimitrijević-Branković, Suzana; Luyt, Adriaan S.; Đoković, Vladimir

(Elsevier Sci Ltd, Oxford, 2012)

TY  - JOUR
AU  - Trandafilović, Lidija V.
AU  - Božanić, Dušan K.
AU  - Dimitrijević-Branković, Suzana
AU  - Luyt, Adriaan S.
AU  - Đoković, Vladimir
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2228
AB  - Alginate was used as a controlled environment for the growth of ZnO nanoparticles. The formation of nanostructured particles was confirmed by a blue shift in the onset of the optical absorption with respect to bulk ZnO. From the XRD measurements it was found that the obtained ZnO nanoparticles have a hexagonal crystal structure. The emission spectrum of the nanocomposite is dominated by a strong band-to-band recombination, while the emission from the ZnO defect states depended on the preparation conditions. Besides showing the presence of Zn 2p, O is, Na 1s and C 1s core levels, the XPS analysis also showed that the O is spectra can be resolved into two lines that are attributed to the presence of OH groups on the surface of the particles and ZnO, respectively. Antimicrobial tests revealed that the ZnO-alginate nanocomposite exhibits a strong activity against the common pathogens Staphylococcus aureus and Escherichia coli.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Fabrication and antibacterial properties of ZnO-alginate nanocomposites
EP  - 269
IS  - 1
SP  - 263
VL  - 88
DO  - 10.1016/j.carbpol.2011.12.005
ER  - 
@article{
author = "Trandafilović, Lidija V. and Božanić, Dušan K. and Dimitrijević-Branković, Suzana and Luyt, Adriaan S. and Đoković, Vladimir",
year = "2012",
abstract = "Alginate was used as a controlled environment for the growth of ZnO nanoparticles. The formation of nanostructured particles was confirmed by a blue shift in the onset of the optical absorption with respect to bulk ZnO. From the XRD measurements it was found that the obtained ZnO nanoparticles have a hexagonal crystal structure. The emission spectrum of the nanocomposite is dominated by a strong band-to-band recombination, while the emission from the ZnO defect states depended on the preparation conditions. Besides showing the presence of Zn 2p, O is, Na 1s and C 1s core levels, the XPS analysis also showed that the O is spectra can be resolved into two lines that are attributed to the presence of OH groups on the surface of the particles and ZnO, respectively. Antimicrobial tests revealed that the ZnO-alginate nanocomposite exhibits a strong activity against the common pathogens Staphylococcus aureus and Escherichia coli.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Fabrication and antibacterial properties of ZnO-alginate nanocomposites",
pages = "269-263",
number = "1",
volume = "88",
doi = "10.1016/j.carbpol.2011.12.005"
}
Trandafilović, L. V., Božanić, D. K., Dimitrijević-Branković, S., Luyt, A. S.,& Đoković, V.. (2012). Fabrication and antibacterial properties of ZnO-alginate nanocomposites. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 88(1), 263-269.
https://doi.org/10.1016/j.carbpol.2011.12.005
Trandafilović LV, Božanić DK, Dimitrijević-Branković S, Luyt AS, Đoković V. Fabrication and antibacterial properties of ZnO-alginate nanocomposites. in Carbohydrate Polymers. 2012;88(1):263-269.
doi:10.1016/j.carbpol.2011.12.005 .
Trandafilović, Lidija V., Božanić, Dušan K., Dimitrijević-Branković, Suzana, Luyt, Adriaan S., Đoković, Vladimir, "Fabrication and antibacterial properties of ZnO-alginate nanocomposites" in Carbohydrate Polymers, 88, no. 1 (2012):263-269,
https://doi.org/10.1016/j.carbpol.2011.12.005 . .
122
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Structure and optical properties of noble metal and oxide nanoparticles dispersed in various polysaccharide biopolymers

Đoković, Vladimir; Božanić, Dušan K.; Vodnik, Vesna; Krsmanović, Radenka; Trandafilović, Lidija V.; Dimitrijević-Branković, Suzana

(Spie-Int Soc Optical Engineering, Bellingham, 2011)

TY  - CONF
AU  - Đoković, Vladimir
AU  - Božanić, Dušan K.
AU  - Vodnik, Vesna
AU  - Krsmanović, Radenka
AU  - Trandafilović, Lidija V.
AU  - Dimitrijević-Branković, Suzana
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1862
AB  - We present the results on the structure and the optical properties of noble metal (Ag, Au) and oxide (ZnO) nanoparticles synthesized by various methods in different polysaccharide matrices such as chitosan, glycogen, alginate and starch. The structure of the obtained nanoparticles was studied in detail with microscopic techniques (TEM, SEM), while the XPS spectroscopy was used to investigate the effects at the nanoparticle-biomolecule interfaces. The antimicrobial activity of the nanocomposite films with Ag nanoparticles was tested against the Staphylococcus aureus, Escherichia coli and Candida albicans pathogens. In addition, we will present the results on the structure and optical properties of the tryptophan amino acid functionalized silver nanoparticles dispersed in water soluble polymer matrices.
PB  - Spie-Int Soc Optical Engineering, Bellingham
C3  - Physical Chemistry of Interfaces and Nanomaterials X
T1  - Structure and optical properties of noble metal and oxide nanoparticles dispersed in various polysaccharide biopolymers
VL  - 8098
DO  - 10.1117/12.899934
ER  - 
@conference{
author = "Đoković, Vladimir and Božanić, Dušan K. and Vodnik, Vesna and Krsmanović, Radenka and Trandafilović, Lidija V. and Dimitrijević-Branković, Suzana",
year = "2011",
abstract = "We present the results on the structure and the optical properties of noble metal (Ag, Au) and oxide (ZnO) nanoparticles synthesized by various methods in different polysaccharide matrices such as chitosan, glycogen, alginate and starch. The structure of the obtained nanoparticles was studied in detail with microscopic techniques (TEM, SEM), while the XPS spectroscopy was used to investigate the effects at the nanoparticle-biomolecule interfaces. The antimicrobial activity of the nanocomposite films with Ag nanoparticles was tested against the Staphylococcus aureus, Escherichia coli and Candida albicans pathogens. In addition, we will present the results on the structure and optical properties of the tryptophan amino acid functionalized silver nanoparticles dispersed in water soluble polymer matrices.",
publisher = "Spie-Int Soc Optical Engineering, Bellingham",
journal = "Physical Chemistry of Interfaces and Nanomaterials X",
title = "Structure and optical properties of noble metal and oxide nanoparticles dispersed in various polysaccharide biopolymers",
volume = "8098",
doi = "10.1117/12.899934"
}
Đoković, V., Božanić, D. K., Vodnik, V., Krsmanović, R., Trandafilović, L. V.,& Dimitrijević-Branković, S.. (2011). Structure and optical properties of noble metal and oxide nanoparticles dispersed in various polysaccharide biopolymers. in Physical Chemistry of Interfaces and Nanomaterials X
Spie-Int Soc Optical Engineering, Bellingham., 8098.
https://doi.org/10.1117/12.899934
Đoković V, Božanić DK, Vodnik V, Krsmanović R, Trandafilović LV, Dimitrijević-Branković S. Structure and optical properties of noble metal and oxide nanoparticles dispersed in various polysaccharide biopolymers. in Physical Chemistry of Interfaces and Nanomaterials X. 2011;8098.
doi:10.1117/12.899934 .
Đoković, Vladimir, Božanić, Dušan K., Vodnik, Vesna, Krsmanović, Radenka, Trandafilović, Lidija V., Dimitrijević-Branković, Suzana, "Structure and optical properties of noble metal and oxide nanoparticles dispersed in various polysaccharide biopolymers" in Physical Chemistry of Interfaces and Nanomaterials X, 8098 (2011),
https://doi.org/10.1117/12.899934 . .
6
1
5

Inhibition of Microbial Growth by Silver-Starch Nanocomposite Thin Films

Božanić, Dušan K.; Đoković, Vladimir; Dimitrijević-Branković, Suzana; Krsmanović, Radenka; McPherson, Michael; Nair, P. Sreekumari; Georges, Michael K.; Radhakrishnan, Thottackad

(Vsp Bv, Leiden, 2011)

TY  - JOUR
AU  - Božanić, Dušan K.
AU  - Đoković, Vladimir
AU  - Dimitrijević-Branković, Suzana
AU  - Krsmanović, Radenka
AU  - McPherson, Michael
AU  - Nair, P. Sreekumari
AU  - Georges, Michael K.
AU  - Radhakrishnan, Thottackad
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1857
AB  - A sago starch biopolymer with embedded silver nanoparticles has been studied as a material for the prevention of microbial growth. Approximately 8 nm in size, silver nanoparticles have been synthesized by reduction of the silver salt in aqueous solution in the presence of sago starch using sodium borohydride as a reducing agent. The obtained solutions were cast on glass plates to obtain thin supported silver-starch nanocomposite films. The morphology of the nanocomposites was investigated by scanning and transmission electron microscopy. UV-Vis absorption spectroscopy showed that during the film formation a part of the silver nanoparticles has been trapped in the water present in the sample, which enabled their partial oxidation into active Ag(+) species. The oxidation of the silver nanoparticles was confirmed by X-ray photoelectron spectroscopy. The antimicrobial activity tests have shown that the nanocomposite material can be successfully employed to prevent the viability and growth of the common pathogens Staphylococcus aureus, Escherichia coli and Candida albicans.
PB  - Vsp Bv, Leiden
T2  - Journal of Biomaterials Science-Polymer Edition
T1  - Inhibition of Microbial Growth by Silver-Starch Nanocomposite Thin Films
EP  - 2355
IS  - 17
SP  - 2343
VL  - 22
DO  - 10.1163/092050610X539532
ER  - 
@article{
author = "Božanić, Dušan K. and Đoković, Vladimir and Dimitrijević-Branković, Suzana and Krsmanović, Radenka and McPherson, Michael and Nair, P. Sreekumari and Georges, Michael K. and Radhakrishnan, Thottackad",
year = "2011",
abstract = "A sago starch biopolymer with embedded silver nanoparticles has been studied as a material for the prevention of microbial growth. Approximately 8 nm in size, silver nanoparticles have been synthesized by reduction of the silver salt in aqueous solution in the presence of sago starch using sodium borohydride as a reducing agent. The obtained solutions were cast on glass plates to obtain thin supported silver-starch nanocomposite films. The morphology of the nanocomposites was investigated by scanning and transmission electron microscopy. UV-Vis absorption spectroscopy showed that during the film formation a part of the silver nanoparticles has been trapped in the water present in the sample, which enabled their partial oxidation into active Ag(+) species. The oxidation of the silver nanoparticles was confirmed by X-ray photoelectron spectroscopy. The antimicrobial activity tests have shown that the nanocomposite material can be successfully employed to prevent the viability and growth of the common pathogens Staphylococcus aureus, Escherichia coli and Candida albicans.",
publisher = "Vsp Bv, Leiden",
journal = "Journal of Biomaterials Science-Polymer Edition",
title = "Inhibition of Microbial Growth by Silver-Starch Nanocomposite Thin Films",
pages = "2355-2343",
number = "17",
volume = "22",
doi = "10.1163/092050610X539532"
}
Božanić, D. K., Đoković, V., Dimitrijević-Branković, S., Krsmanović, R., McPherson, M., Nair, P. S., Georges, M. K.,& Radhakrishnan, T.. (2011). Inhibition of Microbial Growth by Silver-Starch Nanocomposite Thin Films. in Journal of Biomaterials Science-Polymer Edition
Vsp Bv, Leiden., 22(17), 2343-2355.
https://doi.org/10.1163/092050610X539532
Božanić DK, Đoković V, Dimitrijević-Branković S, Krsmanović R, McPherson M, Nair PS, Georges MK, Radhakrishnan T. Inhibition of Microbial Growth by Silver-Starch Nanocomposite Thin Films. in Journal of Biomaterials Science-Polymer Edition. 2011;22(17):2343-2355.
doi:10.1163/092050610X539532 .
Božanić, Dušan K., Đoković, Vladimir, Dimitrijević-Branković, Suzana, Krsmanović, Radenka, McPherson, Michael, Nair, P. Sreekumari, Georges, Michael K., Radhakrishnan, Thottackad, "Inhibition of Microbial Growth by Silver-Starch Nanocomposite Thin Films" in Journal of Biomaterials Science-Polymer Edition, 22, no. 17 (2011):2343-2355,
https://doi.org/10.1163/092050610X539532 . .
2
31
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27

Silver nanoparticles encapsulated in glycogen biopolymer Morphology, optical and antimicrobial properties

Božanić, Dušan K.; Dimitrijević-Branković, Suzana; Bibić, Nataša M.; Luyt, Adriaan S.; Đoković, Vladimir

(Elsevier Sci Ltd, Oxford, 2011)

TY  - JOUR
AU  - Božanić, Dušan K.
AU  - Dimitrijević-Branković, Suzana
AU  - Bibić, Nataša M.
AU  - Luyt, Adriaan S.
AU  - Đoković, Vladimir
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1927
AB  - The glycogen biopolymer from the bovine liver has been used as stabilization agent for the growth of silver nanoparticles The samples with various contents of silver were prepared by two different procedures that include fast (using microwave radiation) and slow (conventional) heating of the reaction mixtures The TEM images of the two nanocomposites showed the presence of nanoparticles with average diameter of 9 7 and 10 4 nm respectively The results also revealed that the optical properties of the obtained nanocomposite samples strongly depend on the method of preparation The samples prepared using microwave radiation exhibited narrower surface plasmon resonance peaks while the silver nanoparticles induced quenching of the photoluminescence of glycogen in all of the tested samples Antimicrobial activity tests were carried out against Staphylococcus aureus Escherichia coli and Candida albicans pathogens and showed that the microbial growth was gradually reduced as the concentration of the silver increased Also after 2 h of exposure to the nanocomposites the number of cells was significantly reduced ( gt 99%) for all the strains tested
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Silver nanoparticles encapsulated in glycogen biopolymer Morphology, optical and antimicrobial properties
EP  - 890
IS  - 2
SP  - 883
VL  - 83
DO  - 10.1016/j.carbpol.2010.08.070
ER  - 
@article{
author = "Božanić, Dušan K. and Dimitrijević-Branković, Suzana and Bibić, Nataša M. and Luyt, Adriaan S. and Đoković, Vladimir",
year = "2011",
abstract = "The glycogen biopolymer from the bovine liver has been used as stabilization agent for the growth of silver nanoparticles The samples with various contents of silver were prepared by two different procedures that include fast (using microwave radiation) and slow (conventional) heating of the reaction mixtures The TEM images of the two nanocomposites showed the presence of nanoparticles with average diameter of 9 7 and 10 4 nm respectively The results also revealed that the optical properties of the obtained nanocomposite samples strongly depend on the method of preparation The samples prepared using microwave radiation exhibited narrower surface plasmon resonance peaks while the silver nanoparticles induced quenching of the photoluminescence of glycogen in all of the tested samples Antimicrobial activity tests were carried out against Staphylococcus aureus Escherichia coli and Candida albicans pathogens and showed that the microbial growth was gradually reduced as the concentration of the silver increased Also after 2 h of exposure to the nanocomposites the number of cells was significantly reduced ( gt 99%) for all the strains tested",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Silver nanoparticles encapsulated in glycogen biopolymer Morphology, optical and antimicrobial properties",
pages = "890-883",
number = "2",
volume = "83",
doi = "10.1016/j.carbpol.2010.08.070"
}
Božanić, D. K., Dimitrijević-Branković, S., Bibić, N. M., Luyt, A. S.,& Đoković, V.. (2011). Silver nanoparticles encapsulated in glycogen biopolymer Morphology, optical and antimicrobial properties. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 83(2), 883-890.
https://doi.org/10.1016/j.carbpol.2010.08.070
Božanić DK, Dimitrijević-Branković S, Bibić NM, Luyt AS, Đoković V. Silver nanoparticles encapsulated in glycogen biopolymer Morphology, optical and antimicrobial properties. in Carbohydrate Polymers. 2011;83(2):883-890.
doi:10.1016/j.carbpol.2010.08.070 .
Božanić, Dušan K., Dimitrijević-Branković, Suzana, Bibić, Nataša M., Luyt, Adriaan S., Đoković, Vladimir, "Silver nanoparticles encapsulated in glycogen biopolymer Morphology, optical and antimicrobial properties" in Carbohydrate Polymers, 83, no. 2 (2011):883-890,
https://doi.org/10.1016/j.carbpol.2010.08.070 . .
56
40
59

Thermal and optical properties of silver-poly(methylmethacrylate) nanocomposites prepared by in-situ radical polymerization

Vodnik, Vesna; Božanić, Dušan K.; Džunuzović, Enis; Vuković, J.; Nedeljković, Jovan

(Pergamon-Elsevier Science Ltd, Oxford, 2010)

TY  - JOUR
AU  - Vodnik, Vesna
AU  - Božanić, Dušan K.
AU  - Džunuzović, Enis
AU  - Vuković, J.
AU  - Nedeljković, Jovan
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1678
AB  - Surface modified silver nanoparticles dispersed in chloroform were encapsulated in poly(methylmethacrylate) (PMMA) by in-situ radical polymerization of methyl methacrylate initiated by 2,2'-azobisisobutyronitrile. The particle size distribution of colloidal silver nanoparticles was determined using transmission electron microscopy. The obtained transparent nanocomposite films were characterized using UV-vis spectroscopy, H-1 NMR spectroscopy and gel permeation chromatography. Effective medium Maxwell-Garnett theory was used in order to explain optical properties of nanocomposite films taking into account inhomogeneous spatial distribution of silver nanoparticles in PMMA matrix. The influence of the silver nanoparticles on the thermal properties of the PMMA matrix was investigated using thermo-gravimetric analysis and differential scanning calorimetry. Thermo-oxidative stability of the PMMA in the presence of low content of inorganic phase is significantly improved. The glass transition temperatures of nanocomposites are slightly lower compared to the pure polymer.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - European Polymer Journal
T1  - Thermal and optical properties of silver-poly(methylmethacrylate) nanocomposites prepared by in-situ radical polymerization
EP  - 144
IS  - 2
SP  - 137
VL  - 46
DO  - 10.1016/j.eurpolymj.2009.10.022
ER  - 
@article{
author = "Vodnik, Vesna and Božanić, Dušan K. and Džunuzović, Enis and Vuković, J. and Nedeljković, Jovan",
year = "2010",
abstract = "Surface modified silver nanoparticles dispersed in chloroform were encapsulated in poly(methylmethacrylate) (PMMA) by in-situ radical polymerization of methyl methacrylate initiated by 2,2'-azobisisobutyronitrile. The particle size distribution of colloidal silver nanoparticles was determined using transmission electron microscopy. The obtained transparent nanocomposite films were characterized using UV-vis spectroscopy, H-1 NMR spectroscopy and gel permeation chromatography. Effective medium Maxwell-Garnett theory was used in order to explain optical properties of nanocomposite films taking into account inhomogeneous spatial distribution of silver nanoparticles in PMMA matrix. The influence of the silver nanoparticles on the thermal properties of the PMMA matrix was investigated using thermo-gravimetric analysis and differential scanning calorimetry. Thermo-oxidative stability of the PMMA in the presence of low content of inorganic phase is significantly improved. The glass transition temperatures of nanocomposites are slightly lower compared to the pure polymer.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "European Polymer Journal",
title = "Thermal and optical properties of silver-poly(methylmethacrylate) nanocomposites prepared by in-situ radical polymerization",
pages = "144-137",
number = "2",
volume = "46",
doi = "10.1016/j.eurpolymj.2009.10.022"
}
Vodnik, V., Božanić, D. K., Džunuzović, E., Vuković, J.,& Nedeljković, J.. (2010). Thermal and optical properties of silver-poly(methylmethacrylate) nanocomposites prepared by in-situ radical polymerization. in European Polymer Journal
Pergamon-Elsevier Science Ltd, Oxford., 46(2), 137-144.
https://doi.org/10.1016/j.eurpolymj.2009.10.022
Vodnik V, Božanić DK, Džunuzović E, Vuković J, Nedeljković J. Thermal and optical properties of silver-poly(methylmethacrylate) nanocomposites prepared by in-situ radical polymerization. in European Polymer Journal. 2010;46(2):137-144.
doi:10.1016/j.eurpolymj.2009.10.022 .
Vodnik, Vesna, Božanić, Dušan K., Džunuzović, Enis, Vuković, J., Nedeljković, Jovan, "Thermal and optical properties of silver-poly(methylmethacrylate) nanocomposites prepared by in-situ radical polymerization" in European Polymer Journal, 46, no. 2 (2010):137-144,
https://doi.org/10.1016/j.eurpolymj.2009.10.022 . .
3
55
49
58

Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes

Antić, Bratislav; Rogan, Jelena; Kremenović, Aleksandar; Nikolić, Aleksandar S.; Vucinić-Vasić, Milica; Božanić, Dušan K.; Goya, G. F.; Colomban, Ph

(IOP Publishing Ltd, Bristol, 2010)

TY  - JOUR
AU  - Antić, Bratislav
AU  - Rogan, Jelena
AU  - Kremenović, Aleksandar
AU  - Nikolić, Aleksandar S.
AU  - Vucinić-Vasić, Milica
AU  - Božanić, Dušan K.
AU  - Goya, G. F.
AU  - Colomban, Ph
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1693
AB  - Spherical shaped nanoparticles of series Y2-xEuxO3 (x = 0.06, 0.10, 0.20, and 2) and Gd2-xEuxO3 (x = 0.06, 0.10) were prepared by thermolysis of 2,4-pentanedione complexes of Y, Gd, and Eu. The bixbyite phase of Gd2-xEuxO3 samples was formed at 500 degrees C, whereas the thermal decomposition of Y and Eu complexes' mixtures occurred at higher temperatures. Linearity in the concentration dependence on lattice parameter confirmed the formation of solid solutions. The distribution of Eu3+ in Gd2-xEuxO3 was changed with thermal annealing: in the as-prepared sample (x = 0.10) the distribution was preferential at C-3i sites while in the annealed samples, Eu3+ were distributed at both C-2 and C-3i sites. Rietveld refinement of site occupancies as well as emission spectra showed a random distribution of cations in Y2-xEuxO3. The photoluminescence (PL) measurements of the sample showed red emission with the main peak at 614 nm (D-5(0)-F-7(2)). The PL intensity increased with increasing concentration of Eu3+ in both series. Infrared excitation was required to obtain good Raman spectra. The linear dependence of the main Raman peak wavenumber offers a non-destructive method for monitoring the substitution level and its homogeneity at the micron scale.
PB  - IOP Publishing Ltd, Bristol
T2  - Nanotechnology
T1  - Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes
IS  - 24
VL  - 21
DO  - 10.1088/0957-4484/21/24/245702
ER  - 
@article{
author = "Antić, Bratislav and Rogan, Jelena and Kremenović, Aleksandar and Nikolić, Aleksandar S. and Vucinić-Vasić, Milica and Božanić, Dušan K. and Goya, G. F. and Colomban, Ph",
year = "2010",
abstract = "Spherical shaped nanoparticles of series Y2-xEuxO3 (x = 0.06, 0.10, 0.20, and 2) and Gd2-xEuxO3 (x = 0.06, 0.10) were prepared by thermolysis of 2,4-pentanedione complexes of Y, Gd, and Eu. The bixbyite phase of Gd2-xEuxO3 samples was formed at 500 degrees C, whereas the thermal decomposition of Y and Eu complexes' mixtures occurred at higher temperatures. Linearity in the concentration dependence on lattice parameter confirmed the formation of solid solutions. The distribution of Eu3+ in Gd2-xEuxO3 was changed with thermal annealing: in the as-prepared sample (x = 0.10) the distribution was preferential at C-3i sites while in the annealed samples, Eu3+ were distributed at both C-2 and C-3i sites. Rietveld refinement of site occupancies as well as emission spectra showed a random distribution of cations in Y2-xEuxO3. The photoluminescence (PL) measurements of the sample showed red emission with the main peak at 614 nm (D-5(0)-F-7(2)). The PL intensity increased with increasing concentration of Eu3+ in both series. Infrared excitation was required to obtain good Raman spectra. The linear dependence of the main Raman peak wavenumber offers a non-destructive method for monitoring the substitution level and its homogeneity at the micron scale.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Nanotechnology",
title = "Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes",
number = "24",
volume = "21",
doi = "10.1088/0957-4484/21/24/245702"
}
Antić, B., Rogan, J., Kremenović, A., Nikolić, A. S., Vucinić-Vasić, M., Božanić, D. K., Goya, G. F.,& Colomban, P.. (2010). Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes. in Nanotechnology
IOP Publishing Ltd, Bristol., 21(24).
https://doi.org/10.1088/0957-4484/21/24/245702
Antić B, Rogan J, Kremenović A, Nikolić AS, Vucinić-Vasić M, Božanić DK, Goya GF, Colomban P. Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes. in Nanotechnology. 2010;21(24).
doi:10.1088/0957-4484/21/24/245702 .
Antić, Bratislav, Rogan, Jelena, Kremenović, Aleksandar, Nikolić, Aleksandar S., Vucinić-Vasić, Milica, Božanić, Dušan K., Goya, G. F., Colomban, Ph, "Optimization of photoluminescence of Y2O3:Eu and Gd2O3:Eu phosphors synthesized by thermolysis of 2,4-pentanedione complexes" in Nanotechnology, 21, no. 24 (2010),
https://doi.org/10.1088/0957-4484/21/24/245702 . .
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52