Mutavdžić, Dragosav

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  • Mutavdžić, Dragosav (4)
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Author's Bibliography

Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method

Milojkov, Dušan; Stanić, Vojislav; Dimović, Slavko; Mutavdžić, Dragosav; Živković-Radovanović, Vukosava; Janjić, Goran V.; Radotić, Ksenija

(Polish Academy of Sciences, 2019)

TY  - JOUR
AU  - Milojkov, Dušan
AU  - Stanić, Vojislav
AU  - Dimović, Slavko
AU  - Mutavdžić, Dragosav
AU  - Živković-Radovanović, Vukosava
AU  - Janjić, Goran V.
AU  - Radotić, Ksenija
PY  - 2019
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/3717
AB  - In the present study we have analyzed effects of Ag+ ions doping on energetic profiles of nanophosphors materials based on fluorapatite crystal system. The UV radiation absorption and luminescence properties of monophase fluorapatite (FAP) and Ag+ doped fluorapatite (AgFAP) nanomaterials obtained by neutralization method were investigated using the photoluminescence spectrophotometry. The excitation-emission profiles of nanomaterials were analyzed statistically by MCR-ALS method and number of fluorophores was extracted. FAP lattice absorbed light at 350 nm in the UVA part of spectrum, and with increasing concentration of Ag+ ions new absorption maximum appeared at 270 nm in the UVC part. Fluorescence of FAP nanoparticles was in violet region of visible part of the spectrum, with a red shift to the green region when Ag+ was doped in lattice. MCR-ALS analyses of fluorescence spectra confirm formation of two maxima, at 484 and 505 nm, as a consequence of Ag+ ions doping in FAP lattice at Ca1 (4f) sites. The results of quantum chemical calculations showed that an Ag+ ion is stronger bonded to the binding site 1 (-1352:6 kcal/mol) than to the binding site 2 (-1249:0 kcal/mol). Considering that AgFAP1 nanopowder absorbs photons over all part of UV radiation spectrum, this material might be used as potential radiation protective nanomaterial.
PB  - Polish Academy of Sciences
T2  - Acta Physica Polonica A
T1  - Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method
VL  - 136
IS  - 1
SP  - 86
EP  - 91
DO  - 10.12693/APhysPolA.136.86
ER  - 
@article{
author = "Milojkov, Dušan and Stanić, Vojislav and Dimović, Slavko and Mutavdžić, Dragosav and Živković-Radovanović, Vukosava and Janjić, Goran V. and Radotić, Ksenija",
year = "2019",
abstract = "In the present study we have analyzed effects of Ag+ ions doping on energetic profiles of nanophosphors materials based on fluorapatite crystal system. The UV radiation absorption and luminescence properties of monophase fluorapatite (FAP) and Ag+ doped fluorapatite (AgFAP) nanomaterials obtained by neutralization method were investigated using the photoluminescence spectrophotometry. The excitation-emission profiles of nanomaterials were analyzed statistically by MCR-ALS method and number of fluorophores was extracted. FAP lattice absorbed light at 350 nm in the UVA part of spectrum, and with increasing concentration of Ag+ ions new absorption maximum appeared at 270 nm in the UVC part. Fluorescence of FAP nanoparticles was in violet region of visible part of the spectrum, with a red shift to the green region when Ag+ was doped in lattice. MCR-ALS analyses of fluorescence spectra confirm formation of two maxima, at 484 and 505 nm, as a consequence of Ag+ ions doping in FAP lattice at Ca1 (4f) sites. The results of quantum chemical calculations showed that an Ag+ ion is stronger bonded to the binding site 1 (-1352:6 kcal/mol) than to the binding site 2 (-1249:0 kcal/mol). Considering that AgFAP1 nanopowder absorbs photons over all part of UV radiation spectrum, this material might be used as potential radiation protective nanomaterial.",
publisher = "Polish Academy of Sciences",
journal = "Acta Physica Polonica A",
title = "Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method",
volume = "136",
number = "1",
pages = "86-91",
doi = "10.12693/APhysPolA.136.86"
}
Milojkov, D., Stanić, V., Dimović, S., Mutavdžić, D., Živković-Radovanović, V., Janjić, G. V.,& Radotić, K.. (2019). Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method. in Acta Physica Polonica A
Polish Academy of Sciences., 136(1), 86-91.
https://doi.org/10.12693/APhysPolA.136.86
Milojkov D, Stanić V, Dimović S, Mutavdžić D, Živković-Radovanović V, Janjić GV, Radotić K. Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method. in Acta Physica Polonica A. 2019;136(1):86-91.
doi:10.12693/APhysPolA.136.86 .
Milojkov, Dušan, Stanić, Vojislav, Dimović, Slavko, Mutavdžić, Dragosav, Živković-Radovanović, Vukosava, Janjić, Goran V., Radotić, Ksenija, "Effects of Ag+ ion doping on UV radiation absorption and luminescence profiles of fluorapatite nanomaterials obtained by neutralization method" in Acta Physica Polonica A, 136, no. 1 (2019):86-91,
https://doi.org/10.12693/APhysPolA.136.86 . .
1

Variability Estimation of the Protein and Phenol Total Content in Honey Using Front Face Fluorescence Spectroscopy Coupled with MCR–ALS Analysis

Stanković, M.; Bartolić, D.; Šikoparija, Branko; Spasojević, Dragica; Mutavdžić, Dragosav; Natić, Maja; Radotić, Ksenija

(2019)

TY  - JOUR
AU  - Stanković, M.
AU  - Bartolić, D.
AU  - Šikoparija, Branko
AU  - Spasojević, Dragica
AU  - Mutavdžić, Dragosav
AU  - Natić, Maja
AU  - Radotić, Ksenija
PY  - 2019
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/3115
AB  - It has been explored to what extent the ratio of the two main fluorophores in honey, originating from proteins and phenolic compounds, change between the honey extraction stage and packaging in the jars. Fluorescence spectroscopy combined with multivariate curve resolution–alternating least squares (MCR–ALS) was used to determine the ratio of the spectral components originating from phenol and proteins (Ph/Pr) fl , as a ratiometric indicator of variability in selected Lime tree (Tilia L.) honey samples. Spectrophotometric quantification of phenols and proteins in the honey samples was also performed and their ratio (Ph/Pr) sp was calculated. The values of the (Ph/Pr) fl ratio and honey protein content after packaging depended on the quality of homogenization before packaging in jars. Colorimetric and fluorometric results for phenols and proteins were in compliance. The examples are the values 3.34, 3.30, and 9, 3.14 for (Ph/Pr) fl and corresponding values 2.64, 2.18, and 12.75, 2.31 for (Ph/Pr) sp , in all pairs, the first value presenting the sample after extraction and the second value the sample after packaging in jars. Both methods show that in the former case there is no change in the phenol/protein ratio, and in the latter case the ratio decreased.
T2  - Journal of Applied Spectroscopy
T1  - Variability Estimation of the Protein and Phenol Total Content in Honey Using Front Face Fluorescence Spectroscopy Coupled with MCR–ALS Analysis
VL  - 86
IS  - 2
SP  - 256
EP  - 263
DO  - 10.1007/s10812-019-00809-1
ER  - 
@article{
author = "Stanković, M. and Bartolić, D. and Šikoparija, Branko and Spasojević, Dragica and Mutavdžić, Dragosav and Natić, Maja and Radotić, Ksenija",
year = "2019",
abstract = "It has been explored to what extent the ratio of the two main fluorophores in honey, originating from proteins and phenolic compounds, change between the honey extraction stage and packaging in the jars. Fluorescence spectroscopy combined with multivariate curve resolution–alternating least squares (MCR–ALS) was used to determine the ratio of the spectral components originating from phenol and proteins (Ph/Pr) fl , as a ratiometric indicator of variability in selected Lime tree (Tilia L.) honey samples. Spectrophotometric quantification of phenols and proteins in the honey samples was also performed and their ratio (Ph/Pr) sp was calculated. The values of the (Ph/Pr) fl ratio and honey protein content after packaging depended on the quality of homogenization before packaging in jars. Colorimetric and fluorometric results for phenols and proteins were in compliance. The examples are the values 3.34, 3.30, and 9, 3.14 for (Ph/Pr) fl and corresponding values 2.64, 2.18, and 12.75, 2.31 for (Ph/Pr) sp , in all pairs, the first value presenting the sample after extraction and the second value the sample after packaging in jars. Both methods show that in the former case there is no change in the phenol/protein ratio, and in the latter case the ratio decreased.",
journal = "Journal of Applied Spectroscopy",
title = "Variability Estimation of the Protein and Phenol Total Content in Honey Using Front Face Fluorescence Spectroscopy Coupled with MCR–ALS Analysis",
volume = "86",
number = "2",
pages = "256-263",
doi = "10.1007/s10812-019-00809-1"
}
Stanković, M., Bartolić, D., Šikoparija, B., Spasojević, D., Mutavdžić, D., Natić, M.,& Radotić, K.. (2019). Variability Estimation of the Protein and Phenol Total Content in Honey Using Front Face Fluorescence Spectroscopy Coupled with MCR–ALS Analysis. in Journal of Applied Spectroscopy, 86(2), 256-263.
https://doi.org/10.1007/s10812-019-00809-1
Stanković M, Bartolić D, Šikoparija B, Spasojević D, Mutavdžić D, Natić M, Radotić K. Variability Estimation of the Protein and Phenol Total Content in Honey Using Front Face Fluorescence Spectroscopy Coupled with MCR–ALS Analysis. in Journal of Applied Spectroscopy. 2019;86(2):256-263.
doi:10.1007/s10812-019-00809-1 .
Stanković, M., Bartolić, D., Šikoparija, Branko, Spasojević, Dragica, Mutavdžić, Dragosav, Natić, Maja, Radotić, Ksenija, "Variability Estimation of the Protein and Phenol Total Content in Honey Using Front Face Fluorescence Spectroscopy Coupled with MCR–ALS Analysis" in Journal of Applied Spectroscopy, 86, no. 2 (2019):256-263,
https://doi.org/10.1007/s10812-019-00809-1 . .
3
3
2

Variation of aromatic compounds in 'Cabernet Sauvignon' wine under the influence of different weather conditions and harvest dates

Marković, Nebojša; Pržić, Zoran; Tešević, Vele; Vuković, Ana J.; Mutavdžić, Dragosav; Vujadinović, Mirjam; Ruml, Mirjana

(Int Soc Horticultural Science, Leuven 1, 2016)

TY  - CONF
AU  - Marković, Nebojša
AU  - Pržić, Zoran
AU  - Tešević, Vele
AU  - Vuković, Ana J.
AU  - Mutavdžić, Dragosav
AU  - Vujadinović, Mirjam
AU  - Ruml, Mirjana
PY  - 2016
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/2329
AB  - This study examines the impact of harvest date, temperature and precipitation on an accumulation of the volatile aromatic compounds in 'Cabernet Sauvignon' wine. The research was carried out in the vineyard of King Peter I Karadjordjevic, the Royal Winery in Oplenac, Serbia, during 2010 and 2011. In each year grapes were harvested twice - when the full maturity has been reached and 15 days later. Aromatic complexes of these 4 wines were analyzed using the Gas Chromatography Mass Spectrometry (GC-MS) and the Gas Chromatography with Flame Ionization Detector (GC-FID). Higher alcohols, lactones, organic acids, esters and amides were detected in wines. Relative portions of 34 aromatic compounds were compared for the full maturity harvests in the both experimental years, as well as their change from the first to the second harvest in each year.
PB  - Int Soc Horticultural Science, Leuven 1
T1  - Variation of aromatic compounds in 'Cabernet Sauvignon' wine under the influence of different weather conditions and harvest dates
VL  - 1139
SP  - 701
EP  - 708
DO  - 10.17660/ActaHortic.2016.1139.120
UR  - Kon_3145
ER  - 
@conference{
author = "Marković, Nebojša and Pržić, Zoran and Tešević, Vele and Vuković, Ana J. and Mutavdžić, Dragosav and Vujadinović, Mirjam and Ruml, Mirjana",
year = "2016",
abstract = "This study examines the impact of harvest date, temperature and precipitation on an accumulation of the volatile aromatic compounds in 'Cabernet Sauvignon' wine. The research was carried out in the vineyard of King Peter I Karadjordjevic, the Royal Winery in Oplenac, Serbia, during 2010 and 2011. In each year grapes were harvested twice - when the full maturity has been reached and 15 days later. Aromatic complexes of these 4 wines were analyzed using the Gas Chromatography Mass Spectrometry (GC-MS) and the Gas Chromatography with Flame Ionization Detector (GC-FID). Higher alcohols, lactones, organic acids, esters and amides were detected in wines. Relative portions of 34 aromatic compounds were compared for the full maturity harvests in the both experimental years, as well as their change from the first to the second harvest in each year.",
publisher = "Int Soc Horticultural Science, Leuven 1",
title = "Variation of aromatic compounds in 'Cabernet Sauvignon' wine under the influence of different weather conditions and harvest dates",
volume = "1139",
pages = "701-708",
doi = "10.17660/ActaHortic.2016.1139.120",
url = "Kon_3145"
}
Marković, N., Pržić, Z., Tešević, V., Vuković, A. J., Mutavdžić, D., Vujadinović, M.,& Ruml, M.. (2016). Variation of aromatic compounds in 'Cabernet Sauvignon' wine under the influence of different weather conditions and harvest dates. 
Int Soc Horticultural Science, Leuven 1., 1139, 701-708.
https://doi.org/10.17660/ActaHortic.2016.1139.120
Kon_3145
Marković N, Pržić Z, Tešević V, Vuković AJ, Mutavdžić D, Vujadinović M, Ruml M. Variation of aromatic compounds in 'Cabernet Sauvignon' wine under the influence of different weather conditions and harvest dates. 2016;1139:701-708.
doi:10.17660/ActaHortic.2016.1139.120
Kon_3145 .
Marković, Nebojša, Pržić, Zoran, Tešević, Vele, Vuković, Ana J., Mutavdžić, Dragosav, Vujadinović, Mirjam, Ruml, Mirjana, "Variation of aromatic compounds in 'Cabernet Sauvignon' wine under the influence of different weather conditions and harvest dates", 1139 (2016):701-708,
https://doi.org/10.17660/ActaHortic.2016.1139.120 .,
Kon_3145 .

Differentiation of wine commercial samples by using fluorescence spectroscopy and multivariate analysis

Mutavdžić, Mira; Mutavdžić, Dragosav; Radotić, Ksenija; Milojković-Opsenica, Dušanka

(2013)

TY  - JOUR
AU  - Mutavdžić, Mira
AU  - Mutavdžić, Dragosav
AU  - Radotić, Ksenija
AU  - Milojković-Opsenica, Dušanka
PY  - 2013
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/88
AB  - Steady state fluorescence spectroscopy in combination with Multivariate Curve Resolution - Alternating Least Squares (MCR-ALS) for spectral analysis has been applied to differentiate commercial samples of wines available on the market. We have chosen the wine trade marks from the two Serbian producers that contain only one wine type, since such approach is a starting step for further analyses of the more complex samples containing different wine types. We also studied changes of the emission spectra of these samples during seven days after opening of the wine bottle. The emission spectra were recorded in the wavelength range 275 - 500 nm, after excitation in the range 255 - 300 nm. The spectra of the wine samples obtained from the same producer are very similar, i.e. contain the same components in the similar ratios. The changes of spectral components at 315 nm and 430 nm were the basis for differentiation of the wine samples from the two producers, as well as for estimation of the wine stability in time after the bottle opening. The results indicate that this may be a useful approach in fingerprinting wines from various producers, as well as in screening the stability of wine.
AB  - Fluorescentna spektroskopija u kombinaciji sa metodom Multivarijaciona Rezolucija Krivih - Naizmenični Najmanji Kvadrati (Multivariate Curve Resolution - Alternating Least Squares, MCR-ALS), je primenjena za razlikovanje komercijalnih uzoraka vina dostupnih na tržištu. Odabrali smo trgovačke marke vina od dva srpska proizvođača koje sadrže samo jednu vrstu vina, jer je ovakav pristup početni korak za kasnije analize složenijih uzoraka koji sadrže različite vrste vina. Takođe smo proučavali promene emisionih spektara ovih uzoraka u toku sedam dana posle otvaranja boce. Emisioni spektri su mereni u opsegu talasnih dužina 275 - 500 nm, posle pobuđivanja u opsegu 255 - 300 nm. Spektri uzoraka vina od istog proizvođača su veoma slični, to jest sadrže iste komponente u sličnom međusobnom odnosu. Promene komponenata spektara na 315 nm i 430 nm bile su osnova za razlikovanje uzoraka vina od dva proizvođača, kao i za procenu stabilnosti vina u vremenu posle otvaranja boce. Rezultati ukazuju da ovo može biti koristan pristup u razlikovanju vina od različitih proizvođača, kao i u praćenju stabilnosti sastava vina.
T2  - Acta agriculturae Serbica
T1  - Differentiation of wine commercial samples by using fluorescence spectroscopy and multivariate analysis
T1  - Razlikovanje komercijalnih uzoraka vina korišćenjem fluorescentne spektroskopije i multivarijacione analize
VL  - 18
IS  - 36
SP  - 169
EP  - 177
UR  - Kon_54
ER  - 
@article{
author = "Mutavdžić, Mira and Mutavdžić, Dragosav and Radotić, Ksenija and Milojković-Opsenica, Dušanka",
year = "2013",
abstract = "Steady state fluorescence spectroscopy in combination with Multivariate Curve Resolution - Alternating Least Squares (MCR-ALS) for spectral analysis has been applied to differentiate commercial samples of wines available on the market. We have chosen the wine trade marks from the two Serbian producers that contain only one wine type, since such approach is a starting step for further analyses of the more complex samples containing different wine types. We also studied changes of the emission spectra of these samples during seven days after opening of the wine bottle. The emission spectra were recorded in the wavelength range 275 - 500 nm, after excitation in the range 255 - 300 nm. The spectra of the wine samples obtained from the same producer are very similar, i.e. contain the same components in the similar ratios. The changes of spectral components at 315 nm and 430 nm were the basis for differentiation of the wine samples from the two producers, as well as for estimation of the wine stability in time after the bottle opening. The results indicate that this may be a useful approach in fingerprinting wines from various producers, as well as in screening the stability of wine., Fluorescentna spektroskopija u kombinaciji sa metodom Multivarijaciona Rezolucija Krivih - Naizmenični Najmanji Kvadrati (Multivariate Curve Resolution - Alternating Least Squares, MCR-ALS), je primenjena za razlikovanje komercijalnih uzoraka vina dostupnih na tržištu. Odabrali smo trgovačke marke vina od dva srpska proizvođača koje sadrže samo jednu vrstu vina, jer je ovakav pristup početni korak za kasnije analize složenijih uzoraka koji sadrže različite vrste vina. Takođe smo proučavali promene emisionih spektara ovih uzoraka u toku sedam dana posle otvaranja boce. Emisioni spektri su mereni u opsegu talasnih dužina 275 - 500 nm, posle pobuđivanja u opsegu 255 - 300 nm. Spektri uzoraka vina od istog proizvođača su veoma slični, to jest sadrže iste komponente u sličnom međusobnom odnosu. Promene komponenata spektara na 315 nm i 430 nm bile su osnova za razlikovanje uzoraka vina od dva proizvođača, kao i za procenu stabilnosti vina u vremenu posle otvaranja boce. Rezultati ukazuju da ovo može biti koristan pristup u razlikovanju vina od različitih proizvođača, kao i u praćenju stabilnosti sastava vina.",
journal = "Acta agriculturae Serbica",
title = "Differentiation of wine commercial samples by using fluorescence spectroscopy and multivariate analysis, Razlikovanje komercijalnih uzoraka vina korišćenjem fluorescentne spektroskopije i multivarijacione analize",
volume = "18",
number = "36",
pages = "169-177",
url = "Kon_54"
}
Mutavdžić, M., Mutavdžić, D., Radotić, K.,& Milojković-Opsenica, D.. (2013). Differentiation of wine commercial samples by using fluorescence spectroscopy and multivariate analysis. in Acta agriculturae Serbica, 18(36), 169-177.
Kon_54
Mutavdžić M, Mutavdžić D, Radotić K, Milojković-Opsenica D. Differentiation of wine commercial samples by using fluorescence spectroscopy and multivariate analysis. in Acta agriculturae Serbica. 2013;18(36):169-177.
Kon_54 .
Mutavdžić, Mira, Mutavdžić, Dragosav, Radotić, Ksenija, Milojković-Opsenica, Dušanka, "Differentiation of wine commercial samples by using fluorescence spectroscopy and multivariate analysis" in Acta agriculturae Serbica, 18, no. 36 (2013):169-177,
Kon_54 .