TY  - JOUR
AU  - Tepavčević, Snežana
AU  - Milutinovic, D. V.
AU  - Macut, D.
AU  - Stanišić, Jelena
AU  - Nikolić, M.
AU  - Bozic-Antic, I.
AU  - Rodaljevic, S.
AU  - Bjekic-Macut, J.
AU  - Matić, Gordana
AU  - Korićanac, Goran
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/553
AB  - Nitric oxide synthases (NOSs) and Na+/K+-ATPase are enzymes essential for regular functioning of the heart. Since both enzymes are under insulin and androgen regulation and since insulin action and androgen level were disturbed in polycystic ovary syndrome (PCOS), we hypothesized that cardiac nitric oxide (NO) production and sodium/potassium transport would be deteriorated in PCOS. To test our hypothesis we introduced animal model of PCOS based on dihydrotestosterone (DHT) treatment of female Wistar rats and analyzed protein expression, phosphorylation or subcellular localization of endothelial NOS (eNOS), inducible NOS (iNOS) and alpha subunits of Na+/K+-ATPase in the heart. Obtained results indicate that DHT treatment significantly decreased cardiac eNOS protein level and activating phosphorylation at serine 1177, while inhibitory phosphorylation at threonine 495 was increased. In contrast to expression of eNOS, iNOS protein level in the heart of DHT-treated rats was significantly elevated. Furthermore, cardiac protein level of alpha 1 subunit of the ATPase, as well as its plasma membrane content, were decreased in rats with PCOS. In line with this, alpha 2 subunit protein level in fraction of plasma membranes was also significantly below control level. In conclusion, DHT treatment impaired effectiveness of NOSs and Na+/K+-ATPase in the female rat heart. Regarding the importance of NO production and sodium/potassium transport in the cardiac contraction and blood flow regulation, it implicates strong consequences of PCOS for heart functioning.
T2  - Experimental and Clinical Endocrinology and Diabetes
T1  - Cardiac Nitric Oxide Synthases and Na+/K+-ATPase in the Rat Model of Polycystic Ovary Syndrome Induced by Dihydrotestosterone
VL  - 123
IS  - 5
SP  - 303
EP  - 307
DO  - 10.1055/s-0035-1548929
ER  - 

@article{
author = "Tepavčević, Snežana and Milutinovic, D. V. and Macut, D. and Stanišić, Jelena and Nikolić, M. and Bozic-Antic, I. and Rodaljevic, S. and Bjekic-Macut, J. and Matić, Gordana and Korićanac, Goran",
year = "2015",
abstract = "Nitric oxide synthases (NOSs) and Na+/K+-ATPase are enzymes essential for regular functioning of the heart. Since both enzymes are under insulin and androgen regulation and since insulin action and androgen level were disturbed in polycystic ovary syndrome (PCOS), we hypothesized that cardiac nitric oxide (NO) production and sodium/potassium transport would be deteriorated in PCOS. To test our hypothesis we introduced animal model of PCOS based on dihydrotestosterone (DHT) treatment of female Wistar rats and analyzed protein expression, phosphorylation or subcellular localization of endothelial NOS (eNOS), inducible NOS (iNOS) and alpha subunits of Na+/K+-ATPase in the heart. Obtained results indicate that DHT treatment significantly decreased cardiac eNOS protein level and activating phosphorylation at serine 1177, while inhibitory phosphorylation at threonine 495 was increased. In contrast to expression of eNOS, iNOS protein level in the heart of DHT-treated rats was significantly elevated. Furthermore, cardiac protein level of alpha 1 subunit of the ATPase, as well as its plasma membrane content, were decreased in rats with PCOS. In line with this, alpha 2 subunit protein level in fraction of plasma membranes was also significantly below control level. In conclusion, DHT treatment impaired effectiveness of NOSs and Na+/K+-ATPase in the female rat heart. Regarding the importance of NO production and sodium/potassium transport in the cardiac contraction and blood flow regulation, it implicates strong consequences of PCOS for heart functioning.",
journal = "Experimental and Clinical Endocrinology and Diabetes",
title = "Cardiac Nitric Oxide Synthases and Na+/K+-ATPase in the Rat Model of Polycystic Ovary Syndrome Induced by Dihydrotestosterone",
volume = "123",
number = "5",
pages = "303-307",
doi = "10.1055/s-0035-1548929"
}

Tepavčević, S., Milutinovic, D. V., Macut, D., Stanišić, J., Nikolić, M., Bozic-Antic, I., Rodaljevic, S., Bjekic-Macut, J., Matić, G.,& Korićanac, G.. (2015). Cardiac Nitric Oxide Synthases and Na+/K+-ATPase in the Rat Model of Polycystic Ovary Syndrome Induced by Dihydrotestosterone. in Experimental and Clinical Endocrinology and Diabetes, 123(5), 303-307.
https://doi.org/10.1055/s-0035-1548929

Tepavčević S, Milutinovic DV, Macut D, Stanišić J, Nikolić M, Bozic-Antic I, Rodaljevic S, Bjekic-Macut J, Matić G, Korićanac G. Cardiac Nitric Oxide Synthases and Na+/K+-ATPase in the Rat Model of Polycystic Ovary Syndrome Induced by Dihydrotestosterone. in Experimental and Clinical Endocrinology and Diabetes. 2015;123(5):303-307.
doi:10.1055/s-0035-1548929 .

Tepavčević, Snežana, Milutinovic, D. V., Macut, D., Stanišić, Jelena, Nikolić, M., Bozic-Antic, I., Rodaljevic, S., Bjekic-Macut, J., Matić, Gordana, Korićanac, Goran, "Cardiac Nitric Oxide Synthases and Na+/K+-ATPase in the Rat Model of Polycystic Ovary Syndrome Induced by Dihydrotestosterone" in Experimental and Clinical Endocrinology and Diabetes, 123, no. 5 (2015):303-307,
https://doi.org/10.1055/s-0035-1548929 . .

TY  - JOUR
AU  - Lukić-Petrović, Svetlana R.
AU  - Petrović, Dragoslav M.
AU  - Nikolić, M.
AU  - Đačanin, Ljubica
AU  - Dramićanin, Miroslav
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5530
AB  - Phosphor materials are of special interest due to their important applications ranging from solid state lightning and displays to biomedicine. Understanding the spectroscopic properties of these materials is important for optimizing their emission for technological applications. Zinc silicate (Zn2SiO4) has been identified as a very suitable host matrix for many rare-earth and transition metal dopant ions with excellent luminescent properties in the blue, green and red spectral zones. Here, we present high resolution measurements of low-temperature photoluminescence of trivalent europium doped zinc silicate particles prepared by combination of so-gel and combustion synthesis route. We observed and analyzed 5D(0) - GT F-7(J) spin forbidden f-f electronic transitions at low temperatures, as well as emission kinetics from D-5(0) level and lifetime-temperature dependence.
T2  - Optoelectronics and Advanced Materials - Rapid Communications
T1  - Low temperature photoluminescence emission of Zn2SiO4:Eu3+ phosphor powder
VL  - 7
IS  - 3-4
SP  - 290
EP  - 292
UR  - https://hdl.handle.net/21.15107/rcub_vinar_5530
ER  - 

@article{
author = "Lukić-Petrović, Svetlana R. and Petrović, Dragoslav M. and Nikolić, M. and Đačanin, Ljubica and Dramićanin, Miroslav",
year = "2013",
abstract = "Phosphor materials are of special interest due to their important applications ranging from solid state lightning and displays to biomedicine. Understanding the spectroscopic properties of these materials is important for optimizing their emission for technological applications. Zinc silicate (Zn2SiO4) has been identified as a very suitable host matrix for many rare-earth and transition metal dopant ions with excellent luminescent properties in the blue, green and red spectral zones. Here, we present high resolution measurements of low-temperature photoluminescence of trivalent europium doped zinc silicate particles prepared by combination of so-gel and combustion synthesis route. We observed and analyzed 5D(0) - GT F-7(J) spin forbidden f-f electronic transitions at low temperatures, as well as emission kinetics from D-5(0) level and lifetime-temperature dependence.",
journal = "Optoelectronics and Advanced Materials - Rapid Communications",
title = "Low temperature photoluminescence emission of Zn2SiO4:Eu3+ phosphor powder",
volume = "7",
number = "3-4",
pages = "290-292",
url = "https://hdl.handle.net/21.15107/rcub_vinar_5530"
}

Lukić-Petrović, S. R., Petrović, D. M., Nikolić, M., Đačanin, L.,& Dramićanin, M.. (2013). Low temperature photoluminescence emission of Zn2SiO4:Eu3+ phosphor powder. in Optoelectronics and Advanced Materials - Rapid Communications, 7(3-4), 290-292.
https://hdl.handle.net/21.15107/rcub_vinar_5530

Lukić-Petrović SR, Petrović DM, Nikolić M, Đačanin L, Dramićanin M. Low temperature photoluminescence emission of Zn2SiO4:Eu3+ phosphor powder. in Optoelectronics and Advanced Materials - Rapid Communications. 2013;7(3-4):290-292.
https://hdl.handle.net/21.15107/rcub_vinar_5530 .

Lukić-Petrović, Svetlana R., Petrović, Dragoslav M., Nikolić, M., Đačanin, Ljubica, Dramićanin, Miroslav, "Low temperature photoluminescence emission of Zn2SiO4:Eu3+ phosphor powder" in Optoelectronics and Advanced Materials - Rapid Communications, 7, no. 3-4 (2013):290-292,
https://hdl.handle.net/21.15107/rcub_vinar_5530 .

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Nikolić, M.
AU  - Mančić, Lidija
AU  - Milošević, Olivera
AU  - Dramićanin, Miroslav
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5257
AB  - Recently, trivalent rare earth doped materials have received significant attention due to the strong temperature dependence of the fluorescence emission of these materials, which can be useful in temperature sensing. Here, we investigated Y2O3 ceramic powders doped with Yb3+ and co-doped with either Tm3+ or Ho3+. The powders were obtained via spray pyrolysis at 900 degrees C and additionally thermally treated at 1100 degrees C for 24 h. Structural characterization using X-ray powder diffraction confirmed the cubic bixbyte structure. Scanning electron microscopy (SEM) revealed that the particles exhibit a uniform spherical morphology. The up-conversion emissions were measured using laser excitation at 978 nm, resulting in the following transitions: blue emission in the range of 450-500 nm, weak red emission in the range of 650-680 nm and near infrared emission in the range of 765-840 nm for Tm3+, as well as green emission centered at 550 nm and weak near infrared emission at 755 nm for the Ho3+ ions. In addition, the temperature dependence of the fluorescence intensity ratios of different Stark components was analyzed in the range of 10-300 K. Significant temperature sensitivity was detected for several components, with the largest value of 0.097 K-1 related to the intensity ratio of I-536 and I-772 emissions observed for the Y2O3:Yb,Ho powder. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Y2O3:Yb,Tm and Y2O3:Yb,Ho powders for low-temperature thermometry based on up-conversion fluorescence
VL  - 39
IS  - 2
SP  - 1129
EP  - 1134
DO  - 10.1016/j.ceramint.2012.07.036
ER  - 

@article{
author = "Lojpur, Vesna and Nikolić, M. and Mančić, Lidija and Milošević, Olivera and Dramićanin, Miroslav",
year = "2013",
abstract = "Recently, trivalent rare earth doped materials have received significant attention due to the strong temperature dependence of the fluorescence emission of these materials, which can be useful in temperature sensing. Here, we investigated Y2O3 ceramic powders doped with Yb3+ and co-doped with either Tm3+ or Ho3+. The powders were obtained via spray pyrolysis at 900 degrees C and additionally thermally treated at 1100 degrees C for 24 h. Structural characterization using X-ray powder diffraction confirmed the cubic bixbyte structure. Scanning electron microscopy (SEM) revealed that the particles exhibit a uniform spherical morphology. The up-conversion emissions were measured using laser excitation at 978 nm, resulting in the following transitions: blue emission in the range of 450-500 nm, weak red emission in the range of 650-680 nm and near infrared emission in the range of 765-840 nm for Tm3+, as well as green emission centered at 550 nm and weak near infrared emission at 755 nm for the Ho3+ ions. In addition, the temperature dependence of the fluorescence intensity ratios of different Stark components was analyzed in the range of 10-300 K. Significant temperature sensitivity was detected for several components, with the largest value of 0.097 K-1 related to the intensity ratio of I-536 and I-772 emissions observed for the Y2O3:Yb,Ho powder. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Y2O3:Yb,Tm and Y2O3:Yb,Ho powders for low-temperature thermometry based on up-conversion fluorescence",
volume = "39",
number = "2",
pages = "1129-1134",
doi = "10.1016/j.ceramint.2012.07.036"
}

Lojpur, V., Nikolić, M., Mančić, L., Milošević, O.,& Dramićanin, M.. (2013). Y2O3:Yb,Tm and Y2O3:Yb,Ho powders for low-temperature thermometry based on up-conversion fluorescence. in Ceramics International, 39(2), 1129-1134.
https://doi.org/10.1016/j.ceramint.2012.07.036

Lojpur V, Nikolić M, Mančić L, Milošević O, Dramićanin M. Y2O3:Yb,Tm and Y2O3:Yb,Ho powders for low-temperature thermometry based on up-conversion fluorescence. in Ceramics International. 2013;39(2):1129-1134.
doi:10.1016/j.ceramint.2012.07.036 .

Lojpur, Vesna, Nikolić, M., Mančić, Lidija, Milošević, Olivera, Dramićanin, Miroslav, "Y2O3:Yb,Tm and Y2O3:Yb,Ho powders for low-temperature thermometry based on up-conversion fluorescence" in Ceramics International, 39, no. 2 (2013):1129-1134,
https://doi.org/10.1016/j.ceramint.2012.07.036 . .

TY  - JOUR
AU  - Kepić, Dejan P.
AU  - Marković, Zoran M.
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Nikolić, M.
AU  - Dramićanin, Miroslav
AU  - Marinović-Cincović, Milena
AU  - Todorović-Marković, Biljana
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4785
AB  - In this paper we report a systematic study on the properties of irradiated SWCNT films by high power, pulsed visible irradiation of OPO laser in the range from 430 nm to 800 nm. Raman analysis showed that metallic and semiconducting SWCNTs were simultaneously affected by irradiation. It was found that laser irradiation had the most prominent effects on SWCNT films at 430 nm wavelength. To our surprise, semiconducting SWCNTs were more affected by irradiation than metallic and as a result several SWCNTs were isolated partially.
T2  - Journal of Optoelectronics and Advanced Materials
T1  - OPO laser light absorption and evolutionary behaviour of SWCNT thin films
VL  - 14
IS  - 1-2
SP  - 95
EP  - 99
UR  - https://hdl.handle.net/21.15107/rcub_vinar_4785
ER  - 

@article{
author = "Kepić, Dejan P. and Marković, Zoran M. and Holclajtner-Antunović, Ivanka D. and Nikolić, M. and Dramićanin, Miroslav and Marinović-Cincović, Milena and Todorović-Marković, Biljana",
year = "2012",
abstract = "In this paper we report a systematic study on the properties of irradiated SWCNT films by high power, pulsed visible irradiation of OPO laser in the range from 430 nm to 800 nm. Raman analysis showed that metallic and semiconducting SWCNTs were simultaneously affected by irradiation. It was found that laser irradiation had the most prominent effects on SWCNT films at 430 nm wavelength. To our surprise, semiconducting SWCNTs were more affected by irradiation than metallic and as a result several SWCNTs were isolated partially.",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "OPO laser light absorption and evolutionary behaviour of SWCNT thin films",
volume = "14",
number = "1-2",
pages = "95-99",
url = "https://hdl.handle.net/21.15107/rcub_vinar_4785"
}

Kepić, D. P., Marković, Z. M., Holclajtner-Antunović, I. D., Nikolić, M., Dramićanin, M., Marinović-Cincović, M.,& Todorović-Marković, B.. (2012). OPO laser light absorption and evolutionary behaviour of SWCNT thin films. in Journal of Optoelectronics and Advanced Materials, 14(1-2), 95-99.
https://hdl.handle.net/21.15107/rcub_vinar_4785

Kepić DP, Marković ZM, Holclajtner-Antunović ID, Nikolić M, Dramićanin M, Marinović-Cincović M, Todorović-Marković B. OPO laser light absorption and evolutionary behaviour of SWCNT thin films. in Journal of Optoelectronics and Advanced Materials. 2012;14(1-2):95-99.
https://hdl.handle.net/21.15107/rcub_vinar_4785 .

Kepić, Dejan P., Marković, Zoran M., Holclajtner-Antunović, Ivanka D., Nikolić, M., Dramićanin, Miroslav, Marinović-Cincović, Milena, Todorović-Marković, Biljana, "OPO laser light absorption and evolutionary behaviour of SWCNT thin films" in Journal of Optoelectronics and Advanced Materials, 14, no. 1-2 (2012):95-99,
https://hdl.handle.net/21.15107/rcub_vinar_4785 .

TY  - JOUR
AU  - Marković, Zoran M.
AU  - Kepić, Dejan P.
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Nikolić, M.
AU  - Dramićanin, Miroslav
AU  - Marinović-Cincović, Milena
AU  - Todorović-Marković, Biljana
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5113
AB  - The effect of visible and infrared irradiation on the structure of single wall carbon nanotubes (SWCNTs) is still an insufficiently resolved subject. In this paper, we report a detailed study of two types of SWCNT thin films treated by pulsed laser irradiation and dynamic and isothermal oxidation, respectively. Raman features of treated films were investigated by 532, 633 and 780?nm excitation lines, respectively. It was established that the 532?nm excitation laser line probes the surface of SWCNT films, while the two others probe the bulk of SWCNT films. It was found that during Raman measurements, one type of SWCNTs warms up significantly while the other type does not change temperature. Raman analysis of SWCNTs probed with 532?nm showed that effects of high power laser irradiation on two types of SWCNTs are completely different. Major effects are decomposition, debundlation and photooxidation. It was found that debundlation and removal of defective carbon are much more pronounced in one type of SWCNTs treated with dynamic oxidation. Dynamic oxidation affects mostly thinner SWCNTs that easily burn in air. The only significant effects of isothermal oxidation are the increase of defective amorphous carbon in the first type of SWCNTs and the decrease of D band and debundlation in the second type. Copyright (c) 2012 John Wiley and Sons, Ltd.
T2  - Journal of Raman Spectroscopy
T1  - Raman study of single wall carbon nanotube thin films treated by laser irradiation and dynamic and isothermal oxidation
VL  - 43
IS  - 10
SP  - 1413
EP  - 1422
DO  - 10.1002/jrs.4077
ER  - 

@article{
author = "Marković, Zoran M. and Kepić, Dejan P. and Holclajtner-Antunović, Ivanka D. and Nikolić, M. and Dramićanin, Miroslav and Marinović-Cincović, Milena and Todorović-Marković, Biljana",
year = "2012",
abstract = "The effect of visible and infrared irradiation on the structure of single wall carbon nanotubes (SWCNTs) is still an insufficiently resolved subject. In this paper, we report a detailed study of two types of SWCNT thin films treated by pulsed laser irradiation and dynamic and isothermal oxidation, respectively. Raman features of treated films were investigated by 532, 633 and 780?nm excitation lines, respectively. It was established that the 532?nm excitation laser line probes the surface of SWCNT films, while the two others probe the bulk of SWCNT films. It was found that during Raman measurements, one type of SWCNTs warms up significantly while the other type does not change temperature. Raman analysis of SWCNTs probed with 532?nm showed that effects of high power laser irradiation on two types of SWCNTs are completely different. Major effects are decomposition, debundlation and photooxidation. It was found that debundlation and removal of defective carbon are much more pronounced in one type of SWCNTs treated with dynamic oxidation. Dynamic oxidation affects mostly thinner SWCNTs that easily burn in air. The only significant effects of isothermal oxidation are the increase of defective amorphous carbon in the first type of SWCNTs and the decrease of D band and debundlation in the second type. Copyright (c) 2012 John Wiley and Sons, Ltd.",
journal = "Journal of Raman Spectroscopy",
title = "Raman study of single wall carbon nanotube thin films treated by laser irradiation and dynamic and isothermal oxidation",
volume = "43",
number = "10",
pages = "1413-1422",
doi = "10.1002/jrs.4077"
}

Marković, Z. M., Kepić, D. P., Holclajtner-Antunović, I. D., Nikolić, M., Dramićanin, M., Marinović-Cincović, M.,& Todorović-Marković, B.. (2012). Raman study of single wall carbon nanotube thin films treated by laser irradiation and dynamic and isothermal oxidation. in Journal of Raman Spectroscopy, 43(10), 1413-1422.
https://doi.org/10.1002/jrs.4077

Marković ZM, Kepić DP, Holclajtner-Antunović ID, Nikolić M, Dramićanin M, Marinović-Cincović M, Todorović-Marković B. Raman study of single wall carbon nanotube thin films treated by laser irradiation and dynamic and isothermal oxidation. in Journal of Raman Spectroscopy. 2012;43(10):1413-1422.
doi:10.1002/jrs.4077 .

Marković, Zoran M., Kepić, Dejan P., Holclajtner-Antunović, Ivanka D., Nikolić, M., Dramićanin, Miroslav, Marinović-Cincović, Milena, Todorović-Marković, Biljana, "Raman study of single wall carbon nanotube thin films treated by laser irradiation and dynamic and isothermal oxidation" in Journal of Raman Spectroscopy, 43, no. 10 (2012):1413-1422,
https://doi.org/10.1002/jrs.4077 . .

TY  - JOUR
AU  - Lojpur, Vesna
AU  - Nikolić, M.
AU  - Mančić, Lidija
AU  - Milošević, Olivera
AU  - Dramićanin, Miroslav
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5087
AB  - Fine yttrium oxide powders doped with Yb3+. and co-doped either with Tm3+ or Ho3+. were synthesized via spray pyrolysis at 900 degrees C using 0.1 M nitrate precursor. Synthesized powders were additionally thermally treated at 1100 degrees C for 24 h. The characterization was done through X-ray powder diffraction (XRPD), scanning electron microscopy (SEM) and photoluminescent measurements (PL). Generation of cubic bixbyte-structure with space group Ia-3 is confirmed in all samples. Spherical particles with the mean size of similar to 400 nm, generated through volume precipitation of much smaller nanograins, expose certain degree of porosity which alters particle morphology during additional thermal treatment. Powders optical characterizations include measurement of up-conversion emission spectra after excitation at 978 nm, as well as determination of emission lifetimes and up-converted emission intensity dependence on excitation power. Dominant green (F-5(4), S-5(2) - GT I-5(8)) and blue ((1)G(4) - GT H-3(6)) emission is found for Ho3+ and Tm3+ samples, respectively. The amplified emission intensities and enhanced lifetime in thermally treated samples are correlated with the powders morphological and structural changes. (C) 2012 Elsevier B.V. All rights reserved.
T2  - Optical Materials
T1  - Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3:Yb3+ fine powders obtained through aerosol decomposition
VL  - 35
IS  - 1
SP  - 38
EP  - 44
DO  - 10.1016/j.optmat.2012.06.019
ER  - 

@article{
author = "Lojpur, Vesna and Nikolić, M. and Mančić, Lidija and Milošević, Olivera and Dramićanin, Miroslav",
year = "2012",
abstract = "Fine yttrium oxide powders doped with Yb3+. and co-doped either with Tm3+ or Ho3+. were synthesized via spray pyrolysis at 900 degrees C using 0.1 M nitrate precursor. Synthesized powders were additionally thermally treated at 1100 degrees C for 24 h. The characterization was done through X-ray powder diffraction (XRPD), scanning electron microscopy (SEM) and photoluminescent measurements (PL). Generation of cubic bixbyte-structure with space group Ia-3 is confirmed in all samples. Spherical particles with the mean size of similar to 400 nm, generated through volume precipitation of much smaller nanograins, expose certain degree of porosity which alters particle morphology during additional thermal treatment. Powders optical characterizations include measurement of up-conversion emission spectra after excitation at 978 nm, as well as determination of emission lifetimes and up-converted emission intensity dependence on excitation power. Dominant green (F-5(4), S-5(2) - GT I-5(8)) and blue ((1)G(4) - GT H-3(6)) emission is found for Ho3+ and Tm3+ samples, respectively. The amplified emission intensities and enhanced lifetime in thermally treated samples are correlated with the powders morphological and structural changes. (C) 2012 Elsevier B.V. All rights reserved.",
journal = "Optical Materials",
title = "Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3:Yb3+ fine powders obtained through aerosol decomposition",
volume = "35",
number = "1",
pages = "38-44",
doi = "10.1016/j.optmat.2012.06.019"
}

Lojpur, V., Nikolić, M., Mančić, L., Milošević, O.,& Dramićanin, M.. (2012). Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3:Yb3+ fine powders obtained through aerosol decomposition. in Optical Materials, 35(1), 38-44.
https://doi.org/10.1016/j.optmat.2012.06.019

Lojpur V, Nikolić M, Mančić L, Milošević O, Dramićanin M. Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3:Yb3+ fine powders obtained through aerosol decomposition. in Optical Materials. 2012;35(1):38-44.
doi:10.1016/j.optmat.2012.06.019 .

Lojpur, Vesna, Nikolić, M., Mančić, Lidija, Milošević, Olivera, Dramićanin, Miroslav, "Up-conversion luminescence in Ho3+ and Tm3+ co-doped Y2O3:Yb3+ fine powders obtained through aerosol decomposition" in Optical Materials, 35, no. 1 (2012):38-44,
https://doi.org/10.1016/j.optmat.2012.06.019 . .

TY  - JOUR
AU  - Dacanin, Lj.
AU  - Lukić, Svetlana R.
AU  - Petrović, Dragoslav M.
AU  - Nikolić, M.
AU  - Dramićanin, Miroslav
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4325
AB  - In this research we prepared Zn2SiO4:Eu3+ phosphor nanopowders using a combination of sol-gel and combustion synthesis with the aim to examine the influence of synthesis conditions on the optical properties of the phosphor. As combustion fuels we used polyethylene glycol (PEG) with different average molecular weights, and the combustion was performed in two ways-in a microwave oven and a conventional furnace. Optical properties were examined by photoluminescence spectroscopy and spectra of all samples showed intense red emission, typical for f-f electronic transitions of the Eu3+ ions. Emission decays exhibited classical one exponential behavior at longer times and nonlinear nature at short times, with average lifetimes varied from 0.49 to 0.71 ms between samples. Judd-Ofelt theory was applied to experimental data for the quantitative determination of optical parameters such as Omega(2,4) Judd-Ofelt parameters, radiative and nonradiative transition rates and emission quantum efficiency. Calculated parameters vary moderately between samples prepared with different PEGs and combusted in different manner. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Physica B: Condensed Matter
T1  - Judd-Ofelt analysis of luminescence emission from Zn2SiO4:Eu3+ nanoparticles obtained by a polymer-assisted sol-gel method
VL  - 406
IS  - 11
SP  - 2319
EP  - 2322
DO  - 10.1016/j.physb.2011.03.068
ER  - 

@article{
author = "Dacanin, Lj. and Lukić, Svetlana R. and Petrović, Dragoslav M. and Nikolić, M. and Dramićanin, Miroslav",
year = "2011",
abstract = "In this research we prepared Zn2SiO4:Eu3+ phosphor nanopowders using a combination of sol-gel and combustion synthesis with the aim to examine the influence of synthesis conditions on the optical properties of the phosphor. As combustion fuels we used polyethylene glycol (PEG) with different average molecular weights, and the combustion was performed in two ways-in a microwave oven and a conventional furnace. Optical properties were examined by photoluminescence spectroscopy and spectra of all samples showed intense red emission, typical for f-f electronic transitions of the Eu3+ ions. Emission decays exhibited classical one exponential behavior at longer times and nonlinear nature at short times, with average lifetimes varied from 0.49 to 0.71 ms between samples. Judd-Ofelt theory was applied to experimental data for the quantitative determination of optical parameters such as Omega(2,4) Judd-Ofelt parameters, radiative and nonradiative transition rates and emission quantum efficiency. Calculated parameters vary moderately between samples prepared with different PEGs and combusted in different manner. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Physica B: Condensed Matter",
title = "Judd-Ofelt analysis of luminescence emission from Zn2SiO4:Eu3+ nanoparticles obtained by a polymer-assisted sol-gel method",
volume = "406",
number = "11",
pages = "2319-2322",
doi = "10.1016/j.physb.2011.03.068"
}

Dacanin, Lj., Lukić, S. R., Petrović, D. M., Nikolić, M.,& Dramićanin, M.. (2011). Judd-Ofelt analysis of luminescence emission from Zn2SiO4:Eu3+ nanoparticles obtained by a polymer-assisted sol-gel method. in Physica B: Condensed Matter, 406(11), 2319-2322.
https://doi.org/10.1016/j.physb.2011.03.068

Dacanin L, Lukić SR, Petrović DM, Nikolić M, Dramićanin M. Judd-Ofelt analysis of luminescence emission from Zn2SiO4:Eu3+ nanoparticles obtained by a polymer-assisted sol-gel method. in Physica B: Condensed Matter. 2011;406(11):2319-2322.
doi:10.1016/j.physb.2011.03.068 .

Dacanin, Lj., Lukić, Svetlana R., Petrović, Dragoslav M., Nikolić, M., Dramićanin, Miroslav, "Judd-Ofelt analysis of luminescence emission from Zn2SiO4:Eu3+ nanoparticles obtained by a polymer-assisted sol-gel method" in Physica B: Condensed Matter, 406, no. 11 (2011):2319-2322,
https://doi.org/10.1016/j.physb.2011.03.068 . .

TY  - CONF
AU  - Tančić, Aleksandar R.
AU  - Nikolić, M.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6817
AB  - In the framework of the many body theory we presented the method and results of calculations of the electron scattering on the negative ions. As an example we calculated the differential and total cross sections of the low energy elastic scattering of electrons on the negative ion Li-.
T1  - Low Energy Elastic Scattering of Electron on the Negative Ions
IS  - 84
SP  - 65
EP  - +
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6817
ER  - 

@conference{
author = "Tančić, Aleksandar R. and Nikolić, M.",
year = "2008",
abstract = "In the framework of the many body theory we presented the method and results of calculations of the electron scattering on the negative ions. As an example we calculated the differential and total cross sections of the low energy elastic scattering of electrons on the negative ion Li-.",
title = "Low Energy Elastic Scattering of Electron on the Negative Ions",
number = "84",
pages = "65-+",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6817"
}

Tančić, A. R.,& Nikolić, M.. (2008). Low Energy Elastic Scattering of Electron on the Negative Ions. (84), 65-+.
https://hdl.handle.net/21.15107/rcub_vinar_6817

Tančić AR, Nikolić M. Low Energy Elastic Scattering of Electron on the Negative Ions. 2008;(84):65-+.
https://hdl.handle.net/21.15107/rcub_vinar_6817 .

Tančić, Aleksandar R., Nikolić, M., "Low Energy Elastic Scattering of Electron on the Negative Ions", no. 84 (2008):65-+,
https://hdl.handle.net/21.15107/rcub_vinar_6817 .