NAPOMENA
Za tačnost unetih podataka o publikacijama, naučnim i umetničkim referencama odgovorni su autori.Jelena Zvezdanović
Dodatne informacije
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Lični podaci
- Datum rođenja: 18.2.1974.
- Mesto rođenja: Vlasotince
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Obrazovanje
- Fakultet: Univerzitet u Nišu, Prirodno-matematički fakultet
- Odsek / Grupa / Smer: Hemija
- Godina diplomiranja: 1999.
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Spisak publikacija
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Monografije i poglavlja u monografijama:
M13
D. Marković, Jelena B. Zvezdanović (2012): „Impact of molecular organization on UV-Irradiation effects to chlorophyll stability: A base to understand biomedical applications“, In: Chlorophyll: Structure, Production and Medicinal Uses, Eds. H. Le, E. Salcedo, Nova Science Publishers, NY, pp. 1-42.
M41
Jelena B. Zvezdanović, Dragan J. Cvetković, Hlorofili i karotenoidi, Univerzitet u Nišu Tehnološki fakultet u Leskovcu, 2022, ISBN: 978-86-89429-51-0; COBISS.SR-ID 84467209
M45
Dragan Cvetković, Sanja Petrović, Jelena Zvezdanović, Saša Savić, Milorad Cakić (2020) Utvrđivanje prisustva bioloških i hemijskih kontaminenata u hrani, U: Perspektive razvoja prehrambene industrije (Grujić R, Janjić V, Trkulјa R, urednici). Održivi razvoj i upravlјanje prirodnim resursima Republike Srpske. Akademija nauka u umjetnosti Republike Srpske, Banja Luka: 585-618.
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Knjige i udžbenici:
1. Dејаn Z. Маrković, Јеlena B. Zvezdanović, Hromatografija u organskoj analizi, Studentski informativno-izdavački centar Niš, 2011, ISBN: 978-86-7178-090-2.
2. Jelena B. Zvezdanović, Sanja M. Petrović, Jelena S. Stanojević, Hromatografske metode u organskoj analizi - Praktikum, Univerzitet u Nišu, Tehnološki fakultet u Leskovcu, 2019, ISBN 978-86-89429-34-3
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Radovi u časopisima sa IMPACT faktorom:
M21
- J. Zvezdanović, T. Cvetić, S. Veljović-Jovanović, D. Marković (2009) Chlorophyll bleaching by UV-irradiation in vitro and in situ: Absorption and fluorescence studies, Radiation Physics and Chemistry, 78(1): 25-32. https://doi.org/10.1016/j.radphyschem.2008.07.006
- Radovanović, B. Jovančičević, B. Radovanović, T. Mihajilov-Krstev, J. Zvezdanović (2012) Antioxidant and antimicrobial potentials of Serbian red wines produced of international Vitis vinifera grape varieties, Journal of the Science of Food and Agriculture, 92(10):2154-2161. https://doi.org/10.1002/jsfa.5601
- V. Tadić, I. Arsić, J. Zvezdanović, A. Zugić, D. Cvetković, S. Pavkov (2017) The estimation of the traditionally used yarrow (Achillea millefolium L. Asteraceae) oil extracts with anti-inflamatory potential in topical application, Journal of Ethnopharmacology, 199: 138-148. http://dx. doi.org/10.1016/j.jep.2017.02.002
- D. Cvetković, Lj. Stanojević, J. Zvezdanović, S. Savić, D. Ilić, I. Karabegović (2018) Aronia leaves at the end of harvest season — Promising source of phenolic compounds, macro-and microelements, Scientia Horticulturae 239:17–25.https:// doi.org/10.1016/j.scienta.2018.05.015
- V.G. Nikolić, D.Z. Troter, I.M. Savić, I.M. Savić-Gajić, J. Zvezdanović, I.B. Konstantinović, S.S. Konstantinović (2023) Design and optimization of “greener” and sustainable ultrasound-assisted extraction of valuable bioactive compounds from common centaury (Centaurium erythraea Rafn) aerial parts: A comparative study using aqueous propylene glycol and ethanol, Industrial Crops and Products, 192: 116070. https://doi.org/10.1016/j.indcrop.2022.116070
- J. Lazarević, A. Šmelcerović, J. Zvezdanović, D. Yancheva, S. Casati, R. Ottria, P. Ciuffreda (2020) Lipid peroxidation inhibition study: A promising case of 1,3-di([1,1′-biphenyl]-3-yl)urea, Chemico-Biological Interactions, 326: 109137. https://doi.org/10.1016/j.cbi.2020.109137
- D.P. Ilić, D.Z. Troter, L.P. Stanojević, J.B. Zvezdanović, D.D. Vukotić, V.D. Nikolić (2021) Cranberry (Vaccinium macrocarpon L.) fruit juice from Serbia: UHPLC- DAD-MS/MS characterization, antibacterial and antioxidant activities, LWT - Food Science and Technology, 146: 111399. https://doi.org/10.1016/j.lwt.2021.111399
- S. Maksimovic, V. Tadic, J. Zvezdanovic, I. Zizovic (2021) Utilization of supercritical CO2 in bioactive principles isolation from Helichrysum italicum and their adsorption on selected fabrics, Journal of Supercritical Fluids, 171: 105197. https://doi.org/10.1016/j.supflu.2021.105197
- S. Maksimovic, M. Stankovic, S. Roganovic, I. Nešic, J. Zvezdanovic, V. Tadic, I. Zizovic (2023) Towards a modern approach to traditional use of Helichrysum italicum in dermatological conditions: In vivo testing supercritical extracton artificially irritated skin, Journal of Ethnopharmacology, 301: 115779. https://doi.org/10.1016/j.jep.2022.115779
- P. Sailović, B. Odžaković, D. Bodroža, J. Vulić, J. Čanadanović-Brunet, J. Zvezdanović, B. Danilović (2024) Polyphenolic composition and antimicrobial, antioxidant, anti-inflammatory, and antihyperglycemic activity of different extracts of Teucrium montanum from Ozren mountain, Antibiotics, 13(4): 358. https://doi.org/10.3390/antibiotics13040358
- N. Joković, J. Matejić, J. Zvezdanović, Z. Stojanović-Radić, N. Stanković, T. Mihajilov-Krstev, N. Bernstein (2024) Onion peel as a potential source of antioxidants and antimicrobial agents, Agronomy, 14(3): 453. https://doi.org/10.3390/agronomy14030453
- V.M. Miljković, L. Nikolić, J. Mrmošanin, I. Gajić, T. Mihajlov-Krstev, J. Zvezdanović, M. Miljković (2024) Chemical profile and antioxidant and antimicrobial activity of Rosa canina L. dried fruit commercially available in Serbia, International Journal of Molecular Sciences, 25(5): 2518. https://doi.org/10.3390/ijms25052518
M22
- J. Zvezdanović, L. Daskalova, D. Yancheva, D. Cvetković, D. Marković, M. Anderluh, A. Šmelcerović (2014) 2-Amino-5-alkylidenethiazol-4-ones as promising lipid peroxidation inhibitors, Monatshefte für Chemie, 145: 945-952. https://doi.org/10.1007/s00706-014-1162-4
- A.Ts. Mavrova, D. Yancheva, N. Anastassova, K. Anichina, J. Zvezdanović, A. Djordjević, D. Marković, A. Šmelcerović (2015) Synthesis, electronic properties, antioxidant and antibacterial activity of some new benzimidazoles, Bioorganic & Medicinal Chemistry, 23(19): 6317-6326. http://dx. doi.org/10.1016/j.bmc.2015.08.029
- S. Petrović, J. Zvezdanović, D. Marković (2017) Chlorophyll degradation in aqueous mediums induced by light and UV-B irradiation: An UHPLC-ESI-MS study, Radiation Physics and Chemistry, 141: 8-16. http://dx. doi.org/10.1016/j.radphyschem.2017.05.024
- S. Petrović, M.E. Barbinta-Patrascu, S. Savić, J. Zvezdanović (2017) Chlorophyll a – labelled artificial lipid membranes exposed to photo-oxidative stress. Spectral studies, Romanian Reports in Physics, 69(4): 612. http://www.rrp.infim.ro/2017_69_4.html
- D. Cvetković, Lj. Stanojević, J. Zvezdanović, J. Stanojević, D. Savić, I. Karabegović, B. Danilović (2021) Pumpkin fruit (Cucurbita pepo L.) as a source of phytochemicals useful in food and pharmaceutical industries, Journal of Food Measurement and Characterization 15(5): 4596-4607. https://doi.org/10.1007/s11694-021-01014-5
I. Gajić, A. Dinić, L. Stanojević, J. Zvezdanović, V. Nikolić, M. Urošević, L. Nikolić, V. Savić (2023) Osage orange (Maclura pomifera (Raf.) Schneid) fruit extracts: UHPLC-DAD-ESI-MS/MS analysis, antioxidant activity and in vivo skintests, Natural Product Research, https://doi.org/10.1080/14786419.2023.2208361
M23
- J. Petrović, G. Nikolić, D. Marković (2006) In vitro complexes of copper and zinc with chlorophyll, Journal of the Serbian Chemical Society, 71 (5): 501-512. https://doi.org/10.2298/JSC0605501P
- J. Zvezdanović, D. Marković, G. Nikolić (2007) Different possibilities for the formation of complexes of copper and zinc with chlorophyll inside photosynthetic organelles: chloroplasts and thylakoids, Journal of the Serbian Chemical Society, 72 (11): 1053-1062. https://doi.org/10.2298/JSC0711053Z
- J. Zvezdanović, D. Marković (2008) Bleaching of chlorophylls by UV irradiation in vitro: the effects on chlorophyll organization in acetone and n-hexane, Journal of the Serbian Chemical Society, 73 (3): 271-282. https://doi.org/10.2298/JSC0803271Z
- J. Zvezdanović, D. Marković (2009) Copper, iron, and zinc interactions with chlorophyll in extracts of photosynthetic pigments studied by VIS spectroscopy, Russian Journal of Physical Chemistry A , 83(9):1542–1546. https://doi.org/10.1134/S0036024409090222
- J. Zvezdanović, D. Marković, D. Cvetković, J. Stanojević (2012) UV-induced change in quercetin antioxidant activity toward benzophenone initiated lipid peroxidation, Journal of the Serbian Chemical Society, 77(11): 1571-1588. https://doi.org/10.2298/JSC120012059Z
- J. Zvezdanović, J. Stanojević, D. Marković, D. Cvetković (2012) Irreversible UV-induced quercetin and rutin degradation in solution, studied by UV-spectrophotometry and HPLC chromatography, Journal of the Serbian Chemical Society, 77(3):297-312. https://doi.org/10.2298/JSC110618180Z
- J. Zvezdanović, D. Marković, S. Milenković (2012) Zinc(II) and copper(II) complexes with pheophytin and mesoporphyrin and their stability to UV-B irradiation: VIS spectroscopy studies, Journal of the Serbian Chemical Society, 77(2):187-199. https://doi.org/10.2298/JSC110310175Z
- J. Stanojević, D. Marković, J. Zvezdanović (2013) Benzophenone suppression of quercetin antioxidant activity towards lipids under UV-B irradiation regime – detection by HPLC chromatography, Journal of Chemistry, 2013: 761675. https://doi.org/10.1155/2013/761675
- J. Zvezdanović, S. Petrović, D. Marković, T. Anđelković, D. Anđelković (2014) Electrospray ionization mass spectrometry combined with the ultra high performance liquid chromatography in the analysis of in vitro formation of chlorophyll complexes with copper and zinc, Journal of the Serbian Chemical Society, 79: 689-706. https://doi.org/10.2298/JSC130918009Z
- J. Stanojević, J. Zvezdanović, D. Marković, (2015) Riboflavin degradation in the presence of quercetin in methanol under continuous UV-B irradiation: The ESI-MS-UHPLC analysis, Monatshefte fur Chemie, 146(11): 1787-1794. https://doi.org/10.1007/s00706-015-1561-1
- J. Stanojević, J. Zvezdanović, D. Marković, (2015) Bilirubin degradation in methanol induced by continuous UV-B irradiation: A UHPLC - ESI-MS study, Pharmazie, 70(4): 225-230. https://doi.org/10.1691/ph.2015.4122
- V. Miljkovic, L. Nikolić, N. Radulović, B. Arsić, G. Nikolić, D. Kostić, Z. Bojanić, J. Zvezdanović (2015) Flavonoids in mulberry fruit: Identification of nоnanthocyanin phenolics in some mulberry fruit species (Morus alba L., Morus rubra L. and Morus nigra L.), Agro Food Industry Hi-Tech, 26(3): 38-42. http://www.teknoscienze.com/agro-food-industry
- D. Stokanović,V. Nikolić, S. Konstantinović, J. Zvezdanović, J. Lilić, S. Apostolović, M. Pavlović, V. Zivković, T. Jevtović-Stoimenov, S. Janković (2016) P-glycoprotein Polymorphism C3435T Is Associated with Dose-Adjusted Clopidogrel and 2-Oxo-Clopidogrel Concentration, Pharmacology, 97:101-106. https://doi.org/10.1159/000442712
- V. MIiljković, G.S. Nikolić, J. Zvezdanović, T. Mihajlov-Krstev, B. Arsić, M. Miljković (2018) Phenolic profile, mineral content and antibacterial activity of the methanol extract of Vaccinium myrtillus L., Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 46(1):122-127. https://doi.org/10.15835/nbha46110966
- M. Pavlović, S. Apostolović, D. Stokanović, J. Lilić, S. Konstantinović, J. Zvezdanović, V. Marinković, V. N. Nikolić (2018) The association of clopidogrel and 2‑oxo‑clopidogrel plasma levels and the 40 months clinical outcome after primary PCI, International Journal of Clinical Pharmacy, 40: 1482-1489. https://doi.org/10.1007/s11096-018-0730-9
- M. Pavlović, S. Apostolović, D. Stokanović, J. Lilić, S. Konstantinović, J. Zvezdanović, V. N. Nikolić (2019) The association between clopidogrel and 2-oxo-clopidogrel plasma levels and the long-term clinical outcome after acute myocardial infarction, International Journal of Clinical Pharmacology and Therapeutics, 57(2), 82-93. https://doi.org/10.5414/CP203190
- S. Petrović, M.E. Barbinta-Patrascu, J. Zvezdanović, S. Savić, D. Cvetković (2019) In vitro studies on chlorophyll stability in water and nanoliposomes affected by “azo“ initiators of free radicals, Romanian Journal of Physics, 64(703): 1-11. https://rjp.nipne.ro/2019_64_9-10/RomJPhys.64.703.pdf
- S. Petrović, S. Savić, J. Zvezdanović, I. Mladenović-Ranisavljević, D. Cvetković, A. Cvetanović (2020) Benefits and risks of commercially available coffee beverages from Western Balkan, Chemical Papers, 74(3): 847-857. https://doi.org/10.1007/s11696-019-00916
- J. Zvezdanović, S. Petrović, S. Savić, D. Cvetković, Lj. Stanojević, J. Stanojević, A. Lazarević (2021) Phenolics and mineral content in St. John’s wort infusions from Serbia origin: An HPLC and ICP-OES study, Chemical Papers 75: 2807–2817. https://doi.org/10.1007/s11696-021-01521-1
- J. Zvezdanović (2022) UHPLC–DAD–ESI–MS/MS characterization of St. John’s wort infusions from Serbia origin, Chemical Papers, 76(3): 1329-1347 https://doi.org/10.1007/s11696-021-01940-0
- S.M. Petrovic, S.M. Savic, S.R. Savic, J. Zvezdanovic, M.-E. Barbinta-Patrascu (2023) Chlorophyllin sodium copper salt in hydrogel formulations: spectrophotometric stability studies and in vitro release, Chemical Papers, 77(5): 2635-2645. https://doi.org/10.1007/s11696-022-02653-8
- V.M. Miljković, M.Z. Momčilović, J.B. Zvezdanović, J.M. Mrmošanin, T.M. Mihajlov-Krstev (2022) Carotenoid and flavonoid levels, antioxidant activity and antimicrobial properties of tomato grown in Serbia, Journal of Food and Nutrition Research, 61(4): 402-414.
- J. Stanojević, I. Karabegović, B. Danilović, J. Zvezdanović, Lj. Stanojević, D. Cvetković (2024) Comparison of Gas Chromatography-Mass Spectrometry and Headspace-solid phase Microextraction methods for the qualitative and semi-quantitative determination of aroma compounds in fruit-based spirits (RAKIJA) from Serbia, Journal of Analytical Chemistry 79(1): 81–94. https://doi.org/10.1134/S106193482401009X
- J. Lazarević, K. Ilić, J. Zvezdanović, G. Stojanović (2024) Synthesis, characterization and evaluation ofthe simple benzaldoximes protective eff ectagainst lipid peroxidation, Chemical Papers, 78(1): 331-341. https://doi.org/10.1007/s11696-023-03090-x
M24
- M.S. Stevanović, J.B. Zvezdanović, Lj.P. Stanojević, J. S. Stanojević, S.M. Petrović, M.D. Cakić, D.J. Cvetković (2019) Synthesis, characterization and antioxidant activity of silver nanoparticles stabilized by aqueous extracts of wild blackberry (Rubus spp.) and raspberry (Rubus idaeus l.) leaves, Advanced Technologies, 8(1): 47-58. https://doi.org/10.5937/SavTeh1901047S
- D. Cvetković, P. Stojilković, J. Zvezdanović, J. Stanojević, Lj. Stanojević, I. Karabegović (2020) The identification оf volatile aroma compounds from local fruit based spirits using а headspace solid-phase microextraction technique coupled with the Gas Chromatography-Mass Spectrometry, Advanced Technologies, 9(2): 19-28. https://doi.org/10.5937/savteh2002019C
- A. Milenković, J. Stanojević, Z. Stojanović-Radić, M. Pejčić, D. Cvetković, J. Zvezdanović, Lj. Stanojević (2020) Chemical composition, antioxidative and antimicrobial activity of allspice (Pimenta dioica (L.) Merr.) essential oil and extract, Advanced technologies, 9(1): 27-36. https://doi.org/10.5937/savteh2001027M
- V.G. Nikolić, J.B. Zvezdanović, S.S. Konstantinović (2022) UHPLC-DAD-ESI-MS analysis of the Centaurium erythraea infusion, Advanced Technologies, 11(1): 13-21. https://doi.org/10.5937/savteh2201013N
- J.S. Stanojević, Lj.P. Stanojević, V.M. Bulatović, J.B. Zvezdanović, A.N. Milenković, N.M. Simonović, D.J. Cvetković (2022) Chemical composition and antioxidant activity of immortelle (Helichrysum italicum) (Roth) G. Don) and yarrow (Achillea millefolium L.) essential oils, Advanced Technologies, 11(1): 93-103. https://doi.org/10.5937/savteh2201093S
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Radovi u ostalim časopisima:
M51
1. J. Stanojević, D. Cvetković, Jelena B. Zvezdanović, Lj. Stanojević, M. Cakić, A. Šmelcerović, D. Marković (2017): „Quercetin degradation induced by continuous UV-B irradiation in the presence of benzophenone“ Advanced Technologies, 6(1), 19-26.
2. Jelena B. Zvezdanović, Sanja M. Petrović, Dejan Z. Marković (2017): „Hematoporpyrin derivatives: the ultrahigh performance liquid chromatography - diode array - electrospray ionisation - mass spectrometry analysis“, Advanced Technologies, 6(2), 26-30.
3. Ljiljana Stanojević, Jelena Zvezdanović, Bojana Danilović, Dragan Cvetković, Jelena Stanojević, Dušica Ilić, Milorad Cakić (2018) The antioxidative and antimicrobial activity of the aqueous eart smoke (Fumaria officinalis L.) extract, Advanced technologies, 7(2): 31-40.
4. J. Stanojević, N. Simonović, Lj. Stanojević, Z. Ilić, A. Milenković, J. Zvezdanović, D. Cvetković (2022) Comparative analysis of chemical composition and antioxidant activity of essential oil isolated from orange and red marigold (Tagetes patula L.) flower petals, Biologica Nyssana, 13(2): 205-216. https://doi.org/10.5281/zenodo.7476279
5. J. Lazarević, J. Zvezdanović, N. Anastassova, Ts.A. Mavrova, D. Yancheva, A. Šmelcerović (2022) In vitro assessment of the lipid peroxidation of N,N’-disubstituted benzimidazole-2-thiones: hydrazides vs esters. Acta Facultatis Medicae Naissensis 39(4), 443-450. https://doi.org/10.5937/afmnai39-36399
M52
1. Jelena B. Zvezdanović, D. Marković, S. Veljović-Jovanović, B. Radovanović (2013): „UV-induced oxigen free radicals production in spinach thylakoids“, Advanced Technologies, 2(1), 45-50.
2. S. M. Milenković, Jelena B. Zvezdanović, T. D. Andjelković, D. Z. Marković (2012): „The identification of chlorophyll and its derivatives in the pigment mixtures: HPLC-chromatography, Visible and Mass spectroscopy studies“, Advanced Technologies, 1(1), 16-24.
3. V. Miljković, V. Rakić, J. Zvezdanović, Lj. Nikolić (2022) Determination of lycopene content in cultivars of Solanum licopersicum grown in greenhouse conditions, Acta Medica Medianae, 61(1):30-35. https://doi.org/10.5633/amm.2022.0104
M53
1. Jelena Zvezdanović, Sanja Petrović, Aleksandar Lzarević (2023) Nickel(II) interactions with chlorophylls in solution: impact to degradation induced by UV-irradiation, Chemia Naissensis, 5(2):1-17. doi: 10.46793/ChemN5.2.01Z
M54
1. Aleksandar Lazarević, Sanja Petrović, Dragan Cvetković, Ljiljana Stanojević, Mirjana Cvijović, Jelena Zvezdanović: Photostability of bacteriochlorophyll a and bacteriopheophytin a against UV-A, UV-B and visible light treatments in methanol solutions, Chemia Naissensis, 2(2) (2019) 82-93.
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Radovi na naučnim skupovima međunarodnog značaja:
M33
- J. Petrović, G. Nikolić, D. Marković, Complexes of chlorophyll with copper, zinc and lead: UV-VIS, FTIR and fluorescence studies, In Proceedings of 7th International Conference on Fundamental and Applied Aspects of Physical Chemistry – Physical Chemistry 2004, Belgrade, Serbia and Montenegro,September 21-23, 2004, Eds. A. Antić-Jovanović, S. Anić, Vol. I, B-18-P, pp.131-133.
- J. Zvezdanović, D. Marković, UV-irradiation induced chlorophylls bleaching in pigment extracts, In Proceedings of 8th International Conference on Fundamental and Applied Aspects of Physical Chemistry – Physical Chemistry 2006, Belgrade, Serbia, September 25-29, 2006, Ed. A. Antić-Jovanović, Vol.1, F-24-P, pp.410-412.
- J. Zvezdanović, J. Ignjatović, D. Marković, Copper, iron and manganese interaction with chlorophyll in pigment solutions and isolated thylakoids, In Proceedings of 9th International Conference on Fundamental and Applied Aspects of Physical Chemistry – Physical Chemistry 2008, Belgrade, Serbia, September 24-26, 2008, Ed. A. Antić-Jovanović, Vol.1, F-1-P, pp. 352-354.
- J. Zvezdanović, T. Cvetić, S. Veljović-Jovanović, D. Marković, UV-induced changes of chlorophylls in solutions, intact chloroplasts and thylakoids, In Proceedings of 9th International Conference on Fundamental and Applied Aspects of Physical Chemistry – Physical Chemistry 2008, Belgrade, Serbia, September 24-26, 2008, Ed. A. Antić-Jovanović, Vol.1, F-2-P, pp.355-357.
- B. Radovanović, A. Radovanović, J. Zvezdanović, Analysis of some phenolic compounds in Cabernet Sauvignon wines from Balkan region, In Proceedings of XXVth International Conference of Polyphenols – ICP 2010, Montpellier, France, August 24-27, 2010, Polyphenols communications 2010, Eds. A. Ageorges, V. Cheynier, P. Lefer, P. Sarni-Manchado, Vol.2, T5.67, pp. 600-601.
- M. Cvijović, P. Djurdjevic, P. Traldi, B. Nastasijević, J. Zvezdanović, MALDI TOF of aluminium fluoroquinolone complexes, In Proceedings of 11th International Conference on Fundamental and Applied Aspects of Physical Chemistry – Physical Chemistry 2012, Belgrade, Serbia, September 24-28, 2012, Ed. A. Antić, Ž. Čupić, Vo2. I, M-04-P, pp. 692-694.
- B. Radovanović, A. Radovanović, J. Bojić, J. Zvezdanović, B. Jovančićević, Total antioxidant capacity of red wines, In Proceedings of III International Congress-Engineering, Environment and Materials in Processing Industry, Jahorina, march 04-06, 2013, Eds. M. Gligorić, A. Došić, D. Kešelj, D. Vujadinović, pp. 452-457.
- S. Konstantinović, Lj. Stanojević, M. Zlatković, D. Stojiljković, J. Zvezdanović, Composition of Reishi/Green tea extract determined by UHPLC-DAD-ESI-MS method, In Proceedings of 14 th International Conference on Fundamental and Applied Aspects of Physical Chemistry vol. II, Society of Physical Chemists of Serbia, Belgrade september 24-28 2018, Q-6-P, pp. 1027-1030.
- J. Stanojević, D. Cvetković, J. Zvezdanović, Lj. Stanojević, D. Marković, Bilirubin-riboflavin mutual interaction in methanol under continuous UV irradiation regime, In Proceedings of RAD conference 2018, vol.3, pp. 213-219. https://doi.org/10.21175/RadProc.2018.45
- S.S. Konstantinović, M. Stefanović, D.Z. Troter, J.B. Zvezdanović, D.M. Stojiljković, V.B. Veljković, UHPLC-DAD-ESI-MS analysis of the ethanolic reishi/propolis extract, In Proceedings of XV International Conference on Fundamental and Applied Aspects of Physical Chemistry – Physical Chemistry 2021, september 20-24 (2021) Belgrade, Serbia, Vol II, pp. 685-687. ISBN: 978-86-82475-40-8.
- N. Simonović, M. Stojanović Krasić, G. Nikolić, Z. Ilić, Lj. Stanojević, J. Zvezdanović, D. Cvetković, J. Stanojević, Optimization of solvent effect on the total extractive matter and antioxidant activity of marigold (Tagetes patula L.) flower petal extracts, In Proceedings of II International Edirne Red Symposium “Natural Colorants from Plants”, eds. M. Tan, T. Erdogan, October 2-5 (2023) Edirne, Turkie, pp.140-155. ISBN: 978-625-6714-52-6
- A. Lazarević, S. Petrović, J. Zvezdanović, B. Danilović, D. Cvetković, T. Anđelković, T. Golubović, Toxicity of PPIX induced by hazardous chemicals, Proceedings of the 20th International Conference “Man and Working Environment”, 7-8 December (2023) Niš, Serbia, eds. V. Nikolić, E. Jovanović, Faculty of Occupational Safety, pp. 115-119. ISBN 978-86-6093-115-5
M34
- J. Petrović, G. Nikolić, D. Marković, Stability of chlorophyll complexes with heavy metals: UV-VIS and FTIR studies , In Book of Abstracts of 4th International Conference of the Chemical Societes of the South-East Europian Countries - ICOSECS 4, Belgrade, Serbia and Montenegro, July 18-21, 2004, , Eds. T. Ast, I. Popović, A. Dekanski, p. 215.
- J. Petrović, T. Cvetić, D. Marković, Complexes of chlorophyll with copper, zinc and lead in solution and photosynthetic organelles: chlorophyll fluorescence studies, In Book of Abstracts of The Sixth European Meeting on Environmental Chemistry – EMEC6, Belgrade, Serbia and Montenegro, December 6-10, 2005, Ed. B. Jovančićević, p. 185.
- J. Zvezdanović, T. Cvetić, S. Veljović-Jovanović, D. Markovic, Chlorophyll bleaching by UV-irradiation in vitro and in situ: absorption and fluorescence studies, In Book of Abstracts of Regional Biophysics Conference – RBC2007, Balatonfüred, Hungary, August 21-25, 2007, Eds. L. Zimanyi, Z. Kota, B. Szalontai, p. 117.
- D. Marković, J. Zvezdanović, Chlorophyll bleaching by UV-irradiation in solvents and isolated photosynthetic organelles, In Book of Abstracts of 4th meeting on Chemistry and life 2008, 09-11. september, Brno, Czech Republic, Ed. P. Dzik, 1-P40, p. 1.60.
- J. Zvezdanović, D. Marković, B. Radovanović, Komparacija stabilnosti flavonola i flavona prema dejstvu UV-zračenja: slučaj kvercetina, morina i rutina, In Book of Abstracts of 10th Simposium of the Flora of Southeastern Serbia and Neighbouring Regions, Vlasina, june 17-20, 2010, Ed. V. Ranđelović, pp. 88-89.
- V. Miljković, Lj. Nikolić, N. Radulović, B. Arsić, G. Nikolić, D. Kostić, J. Zvezdanović, Z. Bojanić, Flavonoids from mulberry fruit (Morus Alba L., Morus Rubra L. and Morus Nigra L.) In Archives of the Balkan Medical Union of The 33rd Balkan Medical Week, 2014, Balkan Medical Union, Buchurest, Romania, 08.10.2014. - 11.10.2014., p. 110.
- S. Petrović, J. Zvezdanović, D. Marković, Chlorophyll and chlorophyllin degradation induced by AAPH, In Book of Abstracts of Third Congress Redox Medicine: Reactive species signaling, analytical methods, phytopharmacy, molecular mechanisms of disease, September 25-26, 2015, Belgrade, Serbia, Eds. B. Korać, A. Stančić p. 82.
- J. Zvezdanović, D. Cvetković, S. Petrović, J. Stanojević, D. Marković, Plant pigments interaction with UV-light: in vivo and in vitro approach, In Book of abstracts of Third International Conference on Radiation and Applications in Various Fields of Research, June 8–12, 2015, Budva, Montenegro, Ed. G. Ristić, p. 505.
- S. Petrović, S. Savić, J. Zvezdanović, D. Cvetković, D. Marković, A lipid microenvironment impact on liposomes with incorporated pigments, In Book of Abstracts of Fourth International Conference on Radiation and Applications in Various Fields of Research, RAD 2016, Niš, Serbia, May 23-27, 2016, Ed. G. Ristić, p.71.
- V. Miljković, G. Nikolić, Lj. Nikolić, J. Zvezdanović, N. Bojanić, M. Miljković, Antioxidant activity of dry methanol extracts of fruits of black (Morus nigra L.) and white mulberry (Morus alba L.) and bilberry (Vaccinium myrtillus L.) and the estimation of their application as antioxidant agents In Archives of 34th Balkan Medical Week Congress, Romania, 07.10. - 08.10.2016., p. 68.
- S. Petrović, J. Zvezdanović, S. Savić, D. Cvetković, Chlorophyll stability to continual UVA, UVB and UVC irradiation inside the liposomes, In Book of Abstracts of The Fifth International Conference on Radiation and Applications in Various Fields of Research (RAD 2017), Budva, Montenegro June 12-16, 2017, Ed. G. Ristić, p. 24.
- J. Zvezdanović, S. Petrović, J. Stanojević, D. Cvetković, A. Lazarević, UHPLC-MS/MS analysis of hematoporphyrin derivatives mixture, In Book of Abstracts of The Fifth International Conference on Radiation and Applications in Various Fields of Research (RAD 2017), Budva, Montenegro June 12-16, 2017, Ed. G. Ristić, p. 25.
- M. Stevanović, J. Stanojević, J. Zvezdanović, S. Petrović, Lj. Stanojević, D. Cvetković, Antioxidant activity of quercetin in azo-initiated lipid peroxidation monitored by hplc method, V International Congress “Engineering, Environment and Materials in Processing Industry“, Jahorina, March 15th-17th, 2017, Republic of Srpska, Bosnia and Herzegovina. Proceedings, H-07, р. 612.
- J. Stanojević, D. Cvetković, J. Zvezdanović, Lj. Stanojević, S. Petrović, D.Marković, Indirect proof of bilirubin Type II photosensitizing properties under continuous UV irradiation regime, In Book of Abstracts of The Sixth International Conference on Radiation and Applications in Various Fields of Research (RAD 2018), Ohrid, Macedonia June 18-22, 2018, Ed. G. Ristić, p. 401.
- J. Stanojević, D. Cvetković, J. Zvezdanović, Lj. Stanojević, D. Marković, UV induced changes of bilirubin-benzophenone-riboflavin-quercetin-phospholipids mixture in methanolic solution, In Book of Abstracts of The Sixth International Conference on Radiation and Applications in Various Fields of Research (RAD 2018), Ohrid, Macedonia June 18-22, 2018, Ed. G. Ristić, p. 403.
- A. Lazarević, S. Petrović, J. Stanojević, D. Cvetković, Lj. Stanojević, J. Zvezdanović, Apigenin and apigetrin stability to UV-irradiation treatment in methanol solutions, In Book of Abstracts of The Sixth International Conference on Radiation and Applications in Various Fields of Research (RAD 2018), Ohrid, Macedonia June 18-22, 2018, Ed. G. Ristić, p. 55.
- A. Lazarević, S. Petrović, J. Stanojević, D. Cvetković, Lj. Stanojević, J. Zvezdanović, Photostability of selected bacteriochlorins-bacteriochlorophyll a and bacteriopheophytin a in methanol soluitions, In Book of abstracts of Fourth Congress of International Congress of Serbian Society for Mitochondrial and Free Radical Physiology, September 28-30.2018. Belgrade, Serbia, P49, p. 95.
- Lj. Stanojević, J. Stanojević, J. Zvezdanović, D. Cvetković, Aleksandar Lazarević, Isolation, identification and antioxidant activity of piperine from black pepper (Piper nigrum L.), In Book of abstracts of Fourth Congress of International Congress of Serbian Society for Mitochondrial and Free Radical Physiology, September 28-30.2018. Belgrade, Serbia, P14, p. 60.
- S. Petrovic, J. Zvezdanovic, S. Savic, D. Cvetkovic, A. Lazarevic, D. Markovic, UVB irradiation impact on chlorophyll degradation in methanol/water solutions monitored by UHPLC/DAD/ESI/MS analysis, Seventh International Conference on Radiation in Various Fields of Research (RAD 2019), Ed. Goran Ristić, Niš, RAD Centre, Book of apstracts, p. 12, June 10–14 (2019) Herceg Novi, Montenegro.
- A. Lazarević, S. Petrović, J. Stanojević, D. Cvetković, J. Zvezdanović, Irreversible bacteriochlorophyll a degradation induced by visible light in methanol solutions, Seventh International Conference on Radiation in Various Fields of Research (RAD 2019), Ed. Goran Ristić, Niš, RAD Centre, Book of apstracts, p. 191, June 10–14 (2019) Herceg Novi, Montenegro.
- A. Milenković, Lj. Stanojević, J. Stanojević, D. Cvetković, J. Zvezdanović, Essential oils of black pepper (Piper nigrum L.) and cubeb (Piper cubeba L.) as a source of natural antioxidants, In proceedings of Fourth International Congress “Engineering, Environment and Materials in Processing Industry“, March 11-13.2019. Jahorina, Republic of Srpska, Bosnia and Hercegovina, p.716.
- A. Lazarević, S. Petrović, J. Stanojević, D. Cvetković, J. Zvezdanović, Lipid peroxidation induced by UV-A irradiation of protoporphyrin in lipid mixture: TBA-MDA test, In Book of Abstracts of Eighth International Conference on Radiation in Various Fields of Research, Virtual Conference, ed. G. Ristić (2020) Niš, RAD Centre, p. 89. ISBN 978-86-901150-1-3
- A. Lazarević, S. Petrović, J. Stanojević, D. Cvetković, J. Zvezdanović, TBA-MDA test for lipid peroxidation detection induced by UV-A and UV-B irradiation of Protoporphyrin IX in SUV liposomes, In Book of Abstracts of Ninth International Conference on Radiation in Various Fields of Research, Virtual Conference, ed. G. Ristić (2021) Niš, RAD Centre, p. 155. ISBN 978-86-901150-2-0
- A. Lazarević, S. Petrović, J. Stanojević, D. Cvetković, J. Zvezdanović, Lipid peroxidation induced by UV-A and UV-B irradiation of protoporphyrin IX in MLV liposomes. TBA-MDA test, In Book of Abstracts of Virtual SFRR-E 2021 annual meeting “Redox Biology in the 21st Century: A New Scientific Discipline”, June 15-18 (2021) Belgrade, Serbia, p.74. https://doi.org/10.1016/j.freeradbiomed.2021.08.077
- A. Milenković, J. Zvezdanović, J. Stanojević, D. Cvetković, Lj. Stanojević, The antioxidant activity of ethanolic extracts from black pepper (Piper nigrum L.) fruits obtained by different extraction techniques, In Book of Abstracts of Virtual SFRR-E 2021 annual meeting “Redox Biology in the 21st Century: A New Scientific Discipline” June 15-18 (2021) Belgrade, Serbia, p.75. https://doi.org/10.1016/j.freeradbiomed.2021.08.078
- A. Milenković, M. Pejčić, Z. Stojanović-Radić, S. Petrović, J. Zvezdanović, J. Stanojević, Lj. Stanojević, Cubeb peper (Piper cubeba L.) extracts as source of natural abtioxidants, antimicrobial agents and minerals, In Proceedings of VII International Congress “Engineering, Environment and Materials in Processing Industry” - EEM2021, March 17-19 (2021) Jahorina, Republic of Srpska, Bosnia and Herzegovina, Faculty of Technology, Zvornik, p. 145. ISBN: 978-99955-81-38-1.
- F. Jovanović, S. Savić, J. Zvezdanović, S. Petrović, ICP-OES and UHPLC-ESI-MS analysis of hyperforin extracts from Hypericum perforatum L., In Book of abstracts of 2nd International Conference on Advanced Production and Processing, October 20-22 (2022) Novi Sad, Serbia, p. 216. ISBN 978-86-6253-160-5
- A. Lazarević, S. Petrović, J. Stanojević, D. Cvetković, J. Zvezdanović, Comparison of lipid peroxidation process induced by visible light in MLV-PPIX and SUV-PPIX liposomes: TBA-MDA test, In Book of Abstracts of Tenth International Conference on Radiation in Various Fields of Research, Virtual Conference ed. G. Ristić (2022) Niš, RAD Centre, p. 101. ISBN: 978-86-901150-4-4.
- A. Milenković, Lj. Stanojević, J. Stanojević, J. Zvezdanović, D. Cvetković, A. Lazarević, The influence of the operation conditions on the yield, kinetics and composition of ethanol extracts from black pepper (Piper nigrum L.) fructus, In Book of Abstracts of International Scientific Conference–GREDIT2022, May 5-8 (2022) Skoplje p.153. ISBN 978-608-4624-34-9.
- A. Lazarević, S. Petrović, J. Stanojević, D. Cvetković, J. Zvezdanović, A. Milenković, Lipid peroxidation induced by UV-B irradiation of protoporphyrin dimethyl-ester in lipids mixture. TBA-MDA test, In Book of Abstracts of International Scientific Conference–GREDIT2022, May 5-8 (2022) Skoplje, p. 155. ISBN 978-608-4624-34-9.
- A. Lazarević, Sanja Petrović, Jelena Stanojević, D. Cvetković, Jelena Zvezdanović, Aleksandra Milenković, Photodegradation of protoporphyrin IX encapsulated in MLV liposomes, induced by UV-A and UV-B irradiation, In Book of Abstracts of International Scientific Conference–GREDIT2022, May 5-8 (2022) Skoplje, p. 158. ISBN 978-608-4624-34-9.
- M. Stevanović, S. Stojanović, S. Najman, Lj. Stanojević, J. Zvezdanović, J. Stanojević, D. Cvetković, Synthesis and anticancer activity of silver nanoparticles stabilized by aqueous extract from strawberry (Fragaria x ananassa Duch.) leaves, In Book of Abstracts of International Scientific Conference–GREDIT2022, May 5-8 (2022) Skoplje, p. 159. ISBN 978-608-4624-34-9.
- M. Stevanović, S. Petrović, B. Danilović, Lj. Stanojević, J. Zvezdanović, J. Stanojević, D. Cvetković, Stability and bio-activity of hydrogels based on silver nanoparticles stabilized by aqueous extracts of wild blackberry (Rubus spp.) leaves, In Book of Abstracts of XIV conference of chemists, technologists and environmentalists of Republic of Srpska, October 21-22 (2022) Banja Luka, Republic of Srpska, Academy of sciences and arts of the Republic of Srpska, Bosnia and Herzegovina, p. 55. ISBN 978-99938-54-96-8.
- S.V. Dončić, J.B. Zvezdanović, D. Troter, I.B. Konstantinović, S.S. Konstantinović, UHPLC-DAD-ESI-MS analysis of waste as herbal tea products from Malus Sylvestris (wild apple), In Book of Abstracts of XIV conference of chemists, technologists and environmentalists of Republic of Srpska, October 21-22 (2022) Banja Luka, Republic of Srpska, Academy of sciences and arts of the Republic of Srpska, Bosnia and Herzegovina, p. 57 (2022) ISBN 978-99938-54-96-8.
- J. Stanojević, N. Simonović, Lj. Stanojević, A. Milenković, J. Zvezdanović, D. Cvetković, Antioxidant activity of essential oil and hydrolate from anisi fructus (Pimpinella anisum L.), In Book of Abstracts of XIV conference of chemists, technologists and environmentalists of Republic of Srpska, October 21-22 (2022) Banja Luka, Republic of Srpska, Academy of sciences and arts of the Republic of Srpska, Bosnia and Herzegovina, p. 105. ISBN 978-99938-54-96-8.
- N. Simonović, B. Danilović, Lj. Stanojević, D. Cvetković, J. Zvezdanović, J. Stanojević, Antimicrobial activity of commercial citrus essential oils, In Book of Abstracts of XIV conference of chemists, technologists and environmentalists of Republic of Srpska, October 21-22 (2022) Banja Luka, Republic of Srpska, Academy of sciences and arts of the Republic of Srpska, Bosnia and Herzegovina, p. 125. ISBN 978-99938-54-96-8.
- J. Stanojević, I. Karabegović, B. Danilović, J. Zvezdanović, Lj. Stanojević, D. Cvetković, Qualitative and quantitative analysis of fruit brandies’ aroma by gas chromatography-mass spectrometry, 5th International Webinar on Mass Spectrometry and Separation Techniques, August 12 (2022) Webinar (Online Meeting).
- A. Milenković, Lj. Stanojević, J. Zvezdanović, S. Milenković, D. Cvetković, G. Nikolić, J. Stanojević, Viburnum opulus L. leaves–Promising source of phenolic compounds, macro- and microelements, In Book of Abstracts of Forestry science for sustainable development FORS2D - Perspectives of forestry and related sectors as drivers of sustainable development in the post-Covid era – FORS2D, September 29-30 (2022) Banja Luka, Republic of Srpska, Bosnia and Herzegovina, p. 171. ISBN 978-99938-56-51-1.
- N. Simonović, Lj. Stanojević, J. Zvezdanović, D. Cvetković, J. Stanojević, Antioxidant activity of extracts from Tagetes spp. (marigold) flowers, In Book of Abstracts of Serbian Biochemical Society Eleventh Conference Scientific meeting of an international character ”Amazing Biochemistry”, September 22-23 (2022) Novi Sad, Serbia, p. 129. ISBN 978-86-7220-124-6.
- F. Jovanović, S. Petrović, S. Savić, J. Zvezdanović, Kinetic investigation of the stability of hyperforin from Hypericum perforatum L. under UV-B irradiation, In Proceedings of VIII International Congress “Engineering, Environment and Materials in Processing Industry”- EEM2023, March 20-23 (2023) Jahorina, Republic of Srpska, Bosnia and Herzegovina, Faculty of Technology, Zvornik, p. 57. ISBN 978-99955-81-44-2.
- Nataša. Simonović, Lj. Stanojević, Z. Ilić, J. Zvezdanović, D. Cvetković, J. Stanojević, Chemical composition and antioxidant activity of marigold (Tagetes patula l.) aerial parts essential oil, In Proceedings of VIII International Congress “Engineering, Environment and Materials in Processing Industry”- EEM2023, March 20-23 (2023) Jahorina, Republic of Srpska, Bosnia and Herzegovina, Faculty of Technology, Zvornik, p. 145. ISBN 978-99955-81-44-2.
- N. Simonović, Lj. Stanojević, A. Milenković, J. Zvezdanović, D. Cvetković, J. Stanojević, Comparative analysis of chemical composition and antioxidant activity of parsnip (Pastinaca sativa l.) aerial parts and root essential oil, In Proceedings of VIII International Congress “Engineering, Environment and Materials in Processing Industry”- EEM2023, March 20-23 (2023) Jahorina, Republic of Srpska, Bosnia and Herzegovina, Faculty of Technology, Zvornik, p.146. ISBN 978-99955-81-44-2.
- J.S. Lazarević, J. Zvezdanović, Lipid peroxidation inhibitory potential of the selected terpenoids, In Book of Abstracts of 53rd International symposium on essential oils - ISEO 2023, September 13-16 (2023) Milazzo, Messina, Italy, p. 83, PA 32.
- J.S. Lazarević, J. Zvezdanović, J., G. Stojanović, The effect of Arthemisia arborescens essential oil and its constituents on the inhibition of lipid peroxidation, In Book of Abstracts of 53rd International symposium on essential oils - ISEO 2023, September 13-16 (2023) Milazzo, Messina, Italy, p. 84, PA 33.
- A. Lazarević, S. Petrović, D. Cvetković, J. Zvezdanović, B. Danilović, T. Anđelković, N. Đorđević, Antimicrobial activity of PPIX-SUV liposomes against Escherichia coli and Pseudomonas aeruginosa, In Book of Abstracts of Eleventh International Conference on Radiation in Various Fields of Research, Virtual Conference, ed. G. Ristić (2020) Niš, RAD Centre, p. 169. ISBN 978-86-901150-6-8 https://doi.org/10.21175/rad.abstr.book.2023.31.5
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Radovi na domaćim naučnim skupovima:
M63
1. Jelena B. Zvezdanović, D. Cvetković, D. Marković: „UV-A iduced bleaching of chlorophyll a, b and total carotenoids in pigment plant extract: VIS analysis“, In Proceedings of 46th Meeting of the Serbian Chemical Society, Belgrade, Serbia, february 21, 2008, Eds. B. Jovanović, Đ. Janaćković, A. Dekanski, pp. 95-98.
2. Jelena B. Zvezdanović, D. Marković:“Kinetic of chlorophyll bleaching process in pigment extract in vitro“, In Proceedings of 45th Meeting of the Serbian Chemical Society, Novi Sad, Serbia, January 25-26, 2007, Eds. B. Abramović, S. Kevrešan, A. Dekanski, pp. 142-145.
M64
- J. Zvezdanović, D. Marković, In vitro and in situ formation of chlorophyll complexes with copper, In Book of Abstracts of 7th Symposium Novel Technologies and Economic Development, Leskovac, Serbia, October 19-20, 2007, Ed. M. Stanković, p. 81.
- J. Zvezdanović, D. Marković, Oxygen free radicals production induced by UV-A irradiation of isolated thylakoids in aqueous suspensions, In Book of Abstracts of 8th Symposium Novel Technologies and Economic Development, Leskovac, Serbia, October 23-24, 2009, , Ed. M. Stanković, p. 92.
- B. C. Radovanović, A. Radovanović, J. Zvezdanović, D. Marković, Determination of some flavan-3-ols and flavonols in wine samples by High-performance liquid chromatography, In Book of Abstracts of XXI Congres of Chemists and Technologists of Macedonia – CCTM 2010, Ohrid, Macedonia, September, 23-26 , Ed. V. Ivanovski, p. 72
- D. Cvetković, D. Marković, B. Radovanović, J. Zvezdanović, Effects of UV-irradiation on flavodnoids stability and suppression of benzophenone-photosensitized lipid peroxidation: correlation of structure and function, In Book of Abstracts of XXI Congres of Chemists and Technologists of Macedonia – CCTM 2010, Ohrid, Macedonia, September, 23-26 , Ed. V. Ivanovski, p-96.
- B. Radovanović, A. Milenković Andjelković, J. Zvezdanović, The optimization of extraction methods for determination of polyphenol content and antioxidant activity in raspberry (Rubus Idaeus), In Book of abstracts, 9th Symposium Novel Technologies and Economic Development, Leskovac, Serbia, October 21-22, 2011, Ed. M. Stanković, p. 48.
- B. Radovanović, J. Zvezdanović, A. Radovanović, M. Denčić, The determination of antioxidant capacity of red wine using DPPH and modified CUPRAC-method, In Book of abstracts, 9th Symposium Novel Technologies and Economic Development, Leskovac, Serbia, October 21-22, 2011, Ed. M. Stanković, p. 49.
- J. Stanojević, J. Zvezdanović, D. Cvetković, D. Marković, The degradation of quercetin and rutin in the solution induced by UV-irradiation, In Book of abstracts, 9th Symposium Novel Technologies and Economic Development, Leskovac, Serbia, October 21-22, 2011, Ed. M. Stanković, p. 86.
- S. Milenković, J. Zvezdanović, D. Marković, The stability of mesoporphyrin IX and its zinc(II) and copper(II) complexes to UV-B irradiation: VIS spectroscopy studies, In Book of abstracts, 9th Symposium Novel Technologies and Economic Development, Leskovac, Serbia, October 21-22, 2011, Ed. M. Stanković, p. 87.
- S. Milenković, J. Zvezdanović, D. Marković, Stability studies of pheophytin and its zinc(II) and copper(II) complexes to UV-B irradiation by VIS spectroscopy studies, In Book of Abstracts of 22nd Congress of Society of Chemists and Technologists of Macedonia, Ohrid, Macedonia, 5-9 september 2012, Eds. S. Hadzi Jordanov, P. Paunovic; p. 80.
- J. Zvezdanović, S. Petrović, D. Marković, The analysis of the chlorophyll complex with zinc by electrospray ionization mass spectrometry, 11th Symposium „Novel Technologies and Economic Development“, Leskovac, October, 23 and 24, 2015, Book of Abstracts, Ed. M. Lazić, p. 116.
- I. Arsić, V. Tadić, A. Žugić, D. Cvetković, J. Zvezdanović, The estimation of dermatological application of yarrow herb oil extract, 11th Symposium „Novel Technologies and Economic Development“, Leskovac, October, 23 and 24, 2015, Book of Abstracts, Ed. M. Lazić, p. 115.
- J. Stanojević, J. Zvezdanović, D. Cvetković, D. Marković, Riboflavin degradation in the presence of quercetin in methanol under continuous UV-B irradiation: the ESI-MS-UHPLC analysis, 11th Symposium „Novel Technologies and Economic Development“, Leskovac, October, 23 and 24, 2015, Book of Abstracts, Ed. M. Lazić, p. 65.
- D. Cvetković, Lj. Stanojević, G. Nikolić, J. Zvezdanović, J. Stanojević, The antioxidant activity of the ethanolic extract from guelder-rose leaves (Viburnum opulus L.), 11th Symposium „Novel Technologies and Economic Development”, Leskovac, October, 23 and 24, 2015, Book of Abstracts, Ed. M. Lazić, p. 49.
- Lj. Stanojević, M. Stanković, J. Zvezdanović, D. Ilić, A. Tačić, V. Nikolić, Lj. Nikolić, The antioxidant activity of Fumaria officinalis L. aqueous extract, 11th Symposium “Novel Technologies and Economic Development”, Leskovac, October, 23 and 24, 2015, Book of Abstracts, Ed. M. Lazić, p. 47.
- Z. Džambaski, A. Đorđević, J. Zvezdanović, A. Šmelcerović, B. Bondžić, Synthesis, antibacterial and antioxidant activity of new benzocyclobutane- 2,5-diones, In Book of Abstracts of 53th Meeting of the Serbian Chemical Society, Kragujevac, Serbia, June 10-11, 2016, Eds. M. Đuran, A. Dekanski, p. 113.
- S. Glišić, Lj. Stanojević, D. Cvetković, J. Zvezdanović, G. Nikolić, M. Cakić, Green synthesis and characterization of silver nanoparticles produced from Fummaria Officinalis L. herba extract, In Book of Abstracts of 24. Congress of Society of Chemists and Technologists of Macedonia, Ohrid, Macedonia, 11-14. september 2016, Eds. S. Hadzi Jordanov, Z. Zdravkovski, J. Magdevski; p. 215.
- S. Petrović, J. Zvezdanović, S. Savić, Ž. Petronijević, D. Marković, Isolation and identification of chlorophyllide by HPLC-chromatography, visible and mass spectroscopy, In book of abstracts of XI Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, 2016, University in Banjaluka, Faculty of Technology, Republika Srpska, 18.11.-19.11.2016, p. 56.
- D. Stojiljković, J. Zvezdanović, I. Vučković, S. Konstantinović, Separation and identification of active components from Reishi/Propolis extract by HPLC method”, 12th Symposium “Novel Technologies and Economic Development”, Leskovac, Serbia, October 20-21, 2017, Ed. M. Lazić, p. 105.
- S. Petrović, A. Lazarević, J. Zvezdanović, Stability of chlorophyll during white light treatments in different methanol/water mixtures. UHPLC-DAD-MS study, 12th Symposium “Novel Technologies and Economic Development”, Leskovac, Serbia, October 20-21, 2017, Ed. M. Lazić, p. 103.
- J. Stanojević, D. Cvetković, J. Zvezdanović, Lj. Stanojević, M. Cakić, A. Šmelcerović, D. Marković, Quercetin and benzophenone interaction under continuous UV-B irradiation regime, 12th Symposium “Novel Technologies and Economic Development”, Leskovac, Serbia, October 20-21, 2017, Ed. M. Lazić, p. 100.
- D. Cvetković, Lj. Stanojević, J. Zvezdanović, J. Stanojević, S. Petrović, M. Stevanović, The composition of photosynthetic pigments in red autumn foliage of aronia, In Book of abstracts, 12th Symposium “Novel Technologies and Economic Development”, Leskovac, Serbia, October 20-21, 2017, Ed. M. Lazić, p. 45.
- D. Stokanović, V. Nikolić, J. Milovanović, S. Konstantinović, J. Zvezdanović, N. Stefanović, M. Trandafilović, Ј. Lilić, S. Apostolović, T. Jevtović-Stoimenov, D. Krtinić, S. Janković, Population pharmacokinetic analysis of 2-oxo-clopidogrel clearance in patients with acute coronary syndrome (2017) Кnjiga sažetaka za peti nacionalni kongres racionalne terapije u medicine 6-8. april 2017. godine, Kragujevac, In Racionalna terapija vol.9, No.1, pp. 129-130, Ed. Slobodan M. Janković.
- Nikolić, Lj. Stanojević, A. Tačić, V. Nikolic, V. Savić, J. Zvezdanović, Antioxidant activity of osage orange (Maclura pomifera (Raf.) Schneid.) fruit extracts, In Book of abstracts, of 25th Congress of Chemists and Technologists of Macedonia, Ohrid, Macedonia,19.-22. September 2018, OBPC P-5, p.55.
- Lj. Stanojević, J. Stanojević, D. Cvetković, J. Zvezdanović, V. Savić, V. Nikolic, Comparative analysis of chemical composition and antioxidant activity of isolated and comercial essential oil from rosemary (Rosmarinus oficinalis L.), In Book of abstracts, of 25th Congress of Chemists and Technologists of Macedonia, Ohrid, Macedonia,19.-22. September 2018, BFT P-3, p.205.
- D. Cvetković, M. Stevanović, J. Zvezdanović, J. Stanojević, Lj. Stanojević, S. Petrović, Antioxidant activity of aqueous extract from raspberry (Rubus idaeus L.) leaves estimated by DPPH test, In Book of abstracts, of 25th Congress of Chemists and Technologists of Macedonia, Ohrid, Macedonia,19.-22. September 2018, BFT P-4, p.206.
- A. Lazarević, S. Petrović, J. Stanojević, D. Cvetković, J. Zvezdanović, Irreversible Bacteriopheophytin a degradation induced by visible light, UV-A and UV-B irradiation in methanol solutions, In Book of abstracts, of 25th Congress of Chemists and Technologists of Macedonia, Ohrid, Macedonia,19.-22. September 2018, BFT P-4, p.216.
- S. Petrović, S. Savić, J. Zvezdanović, D. Cvetković, D. Marković: Uticaj vidljivog i UVB zračenja na in vitro stabilnost hlorofilina (E141) u vodenom medijumu, UNIFood Conference 2018, Beograd.
- A. Lazarević, S. Petrović, J. Stanojević, D. Cvetković, M. Cvijović, J. Zvezdanović, Protoporphyrin IX dimethyl ester photodegradation in methanol and methanol-lipid mixtures, 13th Symposium “Novel Technologies and Economic Development”, Leskovac, Serbia, October 18-191, 2019, Ed. M. Lazić, p. 71.
- M. Stevanović, J. Zvezdanović, Lj. Stanojević, J. Stanojević, S. Petrović, M. Cakić, D. Cvetković, Synthesis and stabilization of silver nanoparticles of raspberry (Rubusidaeus L.) leaves, 13th Symposium “Novel Technologies and Economic Development”, Leskovac, Serbia, October 18-191, 2019, Ed. M. Lazić, p. 74.
- M. Stefanović, D. Stojiljković, J. Zvezdanović, Lj. Stanojević, S. Konstantinović, Composition of reishi and reishi/propolis extracts – LCMS analysis, 13th Symposium “Novel Technologies and Economic Development”, Leskovac, Serbia, October 18-191, 2019, Ed. M. Lazić, p. 76.
- S.M. Petrović, J.B. Zvezdanović, S.R. Savić, M. Elisabeta Bărbînţă-Pătraşcu, D.J. Cvetković, Studies on chlorophyll stability in nanoliposomes affected by lipoid azo initiator, 13th Symposium “Novel Technologies and Economic Development”, Leskovac, Serbia, October 18-191, 2019, Ed. M. Lazić, p. 93.
- V. Miljković, Lj. Nikolić, S. Savić, S. Petrović, M. Miljković, J. Zvezdanović, G. Nikolić, Qualitative analysis and mineral content of different parts of Sambucus nigra L. and Sambucus racemosa L., 13th Symposium “Novel Technologies and Economic Development”, Leskovac, Serbia, October 18-191, 2019, Ed. M. Lazić, p. 96.
- A. Milenković, S. Savić, J. Zvezdanović, S. Petrović, Lj. Stanojević, Aalysis of macro- and microelements in the black pepper (Piper nigrum L.) fruit ethanolic extacts obtained by different extraction techniques, In Book of Abstracts of 14th International Symposium „Novel Technologies and Sustainable Development“ October 22-23 (2021) University of Niš Faculty of Technology, Leskovac, p. 49. ISBN 978-86-89429-44-2.
- J. Stanojevic, Lj. Stanojevic, V. Bulatović, J. Zvezdanović, D. Cvetković, Comparison of the chemical composition and antioxidant activitz of immortelle (Helichrysum italicum) (Roth) G. Don) and yarrow (Achillea millefolium L.) essential oils, In Book of Abstracts of 14th International Symposium „Novel Technologies and Sustainable Development“ October 22-23 (2021) University of Niš Faculty of Technology, Leskovac, p. 53. ISBN 978-86-89429-44-2.
- V. Miljković, S. Savić, S. Petrović, J. Zvezdanović, Determination of mineral content of St. John’s wort herba by ICP-OES method, In Book of Abstracts of 14th International Symposium „Novel Technologies and Sustainable Development“ October 22-23 (2021) University of Niš Faculty of Technology, Leskovac, p. 60. ISBN 978-86-89429-44-2.
- S. Petrović, S. Savić, J. Zvezdanović, S. Savić, M.E. Barbinta Patrascu, In vitro release studies of commercial chlorophyllin sodium copper salt from liposomes and hydrogel formulation, In Book of Abstracts of 14th International Symposium „Novel Technologies and Sustainable Development“ October 22-23 (2021) University of Niš Faculty of Technology, Leskovac, p. 70. ISBN 978-86-89429-44-2.
- A. Lazarević, S. Petrović, J. Stanojević, D. Cvetković, J. Zvezdanović, UV-A and UV-B induced photodegradation of protoporphyrin IX encapsulated in SUV liposomes, In Book of Abstracts of 14th International Symposium „Novel Technologies and Sustainable Development“ October 22-23 (2021) University of Niš Faculty of Technology, Leskovac, p. 71. ISBN 978-86-89429-44-2.
- N. Simonović, A. Milenković, Lj. Stanojević, J. Zvezdanović, D. Cvetković, J. Stanojević, Chemical composition of commercial and isolated essential oils from Tagetes spp. (marigold) flowers, In Book of Abstracts of 14th Symposium on the Flora of Southeastern Serbia and Neighboring Regions, June 26-29 (2022) Kladovo, p. 133. ISBN 978-86-6275-140-9
- A. Milenković, N. Simonović, J. Zvezdanović, J. Stanojević, D. Cvetković, Lj. Stanojević, The influence of the operation conditions on the yield, composition and antioxidant activity of ethanol extracts from cubeb pepper (Piper cubeba L.) fructus, In Book of Abstracts of 14th Symposium on the Flora of Southeastern Serbia and Neighboring Regions, June 26-29 (2022) Kladovo, p. 134. ISBN 978-86-6275-140-9
- S. Dončić, J. Zvezdanović, D. Troter, S. Konstantinović, UHPLC-DAD-ESI-MS analysis of the Malus sylvestris (wild apple) leaf infusion, In Book of Abstracts of 14th Symposium on the Flora of Southeastern Serbia and Neighboring Regions, June 26-29 (2022) Kladovo, p. 136. ISBN 978-86-6275-140-9
- V. Nikolić, J. Zvezdanović, S. Petrović, Savić, Konstantinović, Chemical and mineral composition of Centaurium erythraea infusion, In Book of Abstracts of 14th Symposium on the Flora of Southeastern Serbia and Neighboring Regions, June 26-29 (2022) Kladovo, p. 137. ISBN 978-86-6275-140-9
- J. Lazarević, K. Ilić, B. Zlatković, J. Zvezdanović, Lipid peroxidation study of simple coumarins isolated from Daphne mezereum (Oleaceae), In Book of Abstracts of 14th Symposium on the Flora of Southeastern Serbia and Neighboring Regions, June 26-29 (2022) Kladovo, p. 141. ISBN 978-86-6275-140-9
- A. Lazarević, S. Petrović, J. Zvezdanović, N. Đorđević, B. Danilović, D. Cvetković, T. Anđelković, Antimicrobial activity of PPIX-SUV liposomes against Staphylococcus aureus and Bacillus subtillis, 3rd Scientific Symposium of the Pharmaceutical Association of Serbia with international participation entitled „Medicines for specific patient populations: Innovations for the improved health outcomes“, Archives of Pharmacy (2023), 73(4): S55–S56.
- J. Stanojević, N. Simonović, S. Đorđević, Lj. Stanojević, J. Zvezdanović, D. Cvetković, Chemical composition and antioxidant activity of angelica (Angelica archangelica L.) root essential oil and extracts, 3rd Scientific Symposium of the Pharmaceutical Association of Serbia with international participation entitled „Medicines for specific patient populations: Innovations for the improved health outcomes“, Archives of Pharmacy (2023), 73(4): S79–S80.
- N. Simonović, M. Stojanović Krasić, Z. Ilić, Lj. Stanojević, J. Zvezdanović, D. Cvetković, Jelena Stanojević, Reflux extraction optimization for total extractive matter of dwarf marigold (Tagetes patula L.) flower petals, 3rd Scientific Symposium of the Pharmaceutical Association of Serbia with international participation entitled „Medicines for specific patient populations: Innovations for the improved health outcomes“, Archives of Pharmacy (2023), 73(4): S81–S82.
- J. Lazarević, J. Zvezdanović, A. Ts. Mavrova, D. Yancheva, A. Šmelcerović, In vitro assesment of antioxidant activity of tetrahydro-benzo[4,5]thieno[2,3-D]pyrimidines, 3rd Scientific Symposium of the Pharmaceutical Association of Serbia with international participation entitled „Medicines for specific patient populations: Innovations for the improved health outcomes“, Archives of Pharmacy (2023), 73(4): S93–S94.
- A L.azarević, S. Petrović, J. Zvezdanović, N. Đorđević, B. Danilović, D. Cvetković, T. Anđelković, Antimicrobial activity of PPIX-MLV liposomes against Escherichia coli and Pseudomonas aeruginosa, In Book of Abstracts of 15th International Symposium „Novel Technologies and Sustainable Development“, October 20-21 (2023) University of Niš Faculty of Technology, Leskovac, p. 55. ISBN-978-86-89429-56-5.
- M. Stevanović, B. Danilović, S. Petrović, Lj. Stanojević, J. Zvezdanović, J. Stanojević, D. Cvetković, Synthesis and biological activity of gold nanoparticles stabilized by aqueous extracts of wild blackberry (Rubus spp.) leaves, In Book of Abstracts of 15th International Symposium „Novel Technologies and Sustainable Development“, October 20-21 (2023) University of Niš Faculty of Technology, Leskovac, p.68. ISBN-978-86-89429-56-5.
- J. Stanojević, Lj. Stanojević, J. Zvezdanović, D. Cvetković, The effect of salt addition on the yield, chemical composition, and antioxidant activity of essential oil from angelicae radix (Angelica archangelica L.), In Book of Abstracts of 15th International Symposium „Novel Technologies and Sustainable Development“, October 20-21 (2023) University of Niš Faculty of Technology, Leskovac, p. 69. ISBN-978-86-89429-56-5.
- V. Miljković, J. Mrmošanin, J. Zvezdanović, M. Momčilović, M. Miljković, T. Mihajlov-Krstev, Lj. Nikolić, Antioxidant activity of grapefruit (Citrus paradise) extract, In Book of Abstracts of 15th International Symposium „Novel Technologies and Sustainable Development“, October 20-21 (2023) University of Niš Faculty of Technology, Leskovac, p. 70. ISBN-978-86-89429-56-5.
- N. Simonović, M. Stojanović Krasić, Z. Ilić, Lj. Stanojević, J. Zvezdanović, D. Cvetković, J. Stanojević, Extraction optimization for antioxidant activity of dwarf marigold (Tagetes patula L.) flower petals, In Book of Abstracts of 15th International Symposium „Novel Technologies and Sustainable Development“, October 20-21 (2023) University of Niš Faculty of Technology, Leskovac, p. 72. ISBN-978-86-89429-56-5.
- N. Tošić, J. Zvezdanović, V. Nikolić, M. Urošević, A. Dinić, I. Gajić, Lj. Nikolić, V.Savić, Comparative chemical composition of isolated and commercial laurel leaf essential oil (Laurus nobilis L.), In Book of Abstracts of 15th International Symposium „Novel Technologies and Sustainable Development“, October 20-21 (2023) University of Niš Faculty of Technology, Leskovac, p. 73. ISBN-978-86-89429-56-5.
- Lj. Stanojević, A. Milenković, J. Stanojević, J. Zvezdanović, D. Cvetković, Antioxidant activity of wild carrot (Daucus carota L.) umbels ethanolic extracts from serbia and greece, In Book of Abstracts of 15th International Symposium „Novel Technologies and Sustainable Development“, October 20-21 (2023) University of Niš Faculty of Technology, Leskovac, p. 75. ISBN-978-86-89429-56-5.
- A. Milenković, Lj. Stanojević, D. Pavlović, J. Matejić, J. Zvezdanović, Anti-inflamatoty activity of black pepper (Piper nigrum L.) ethanolic extracts, In Book of Abstracts of 15th International Symposium „Novel Technologies and Sustainable Development“, October 20-21 (2023) University of Niš Faculty of Technology, Leskovac, p. 76. ISBN-978-86-89429-56-5.
- S. M. Petrović, S. M. Savić, S.R. Savić, N. Cekić, J.B. Zvezdanović, A. Lazarević, Evaluation studies of hydrogel formulations with chlorophyllin sodium copper salts, In Book of Abstracts of 15th International Symposium „Novel Technologies and Sustainable Development“, October 20-21 (2023) University of Niš Faculty of Technology, Leskovac, p. 101. ISBN-978-86-89429-56-5.
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Tehnička rešenja:
M85
Nova metoda
D.P. Ilić, D.Z. Troter, J.B. Zvezdanović, D.D. Vukotić, I. S. Ristić, B.R. Danilović, Tehnološki postupak dobijanja hladno ceđenog soka iz sirovog ploda brusnice (Vaccinium macrocarpon L.) sa antibakterijskom aktivnošću, Tehnološki fakultet u Leskovcu, 04 br 4183/VIII, 30.9.2022. godine. Priznato od MNO za materijale i hemijske tehnologije 27.12.2022.
Dragan Cvetković, Petra Stojilković, Jelena Stanojević, Ljiljana Stanojević, Jelena Zvezdanović, Nova metoda određivanja sastava smeša isparljivih organskih jedinjenja gasnom hromatografijom u kombinaciji sa mikroekstrakcijom na čvrstoj fazi – naprimeru žestokih alkoholnih pića, Ev.br. 04-2091/1, Univerzitet u Nišu, Tehnološki fakultet u Leskovcu, 13.11.2019., Participant-korisnik: Diapharm, Niš. Recenzije Ev.br. 04-2126/1 od 18.11.2019. i 04-2127/1 od 19.11.2019. Odluka o usvajanju recenzija Ev.br. 4/109-IX od 25.11.2019.
Jelena B. Zvezdanović, Sanja Petrović, Dragan Cvetković, Jelena Stanojević, UHPLC-DAD-MS metoda za razdvajanje i identifikaciju hlorofila i njegovih derivata, Univerzitet u Nišu, Tehnološki fakultet u Leskovcu, Ev.br. 04-2332/1, 19.12.2017., Participant-korisnik: Diapharm, Niš.
Ljiljana Stanojević, Jelena Zvezdanović, Dragan Cvetković, Jelena Stanojević, Određivanje sadržaja ruzmarinske kiseline u ekstraktu dimnjače (Fumaria officinalis L.) primenom UHPLC-DAD-MS metode. Ev.br. 04-2334/1, Univerzitet u Nišu, Tehnološki fakultet u Leskovcu, 19.12.2017., Participant-korisnik: Diapharm, Niš.
Jelena Stanojević, Dragan Cvetković, Jelena Zvezdanović, Ljiljana Stanojević, HPLC metoda za praćenje UV indukovane degradacije bilirubina, riboflavina i kvercetina u smeši sa fosfolipidima. Ev.br. 04-2335/1, Univerzitet u Nišu, Tehnološki fakultet u Leskovcu, 19.12.2017., Participant-korisnik: Diapharm, Niš.
Jelena Stanojević, Dragan Cvetković, Jelena Zvezdanović, Ljiljana Stanojević, HPLC metoda za detekciju UV indukovanih produkata degradacije riboflavina i kvercetina. Ev.br. 04-2331/1, Univerzitet u Nišu, Tehnološki fakultet u Leskovcu, 19.12.2017., Participant-korisnik: Diapharm, Niš.
Jelena B. Zvezdanović, Ljiljana Stanojević, Dragan Cvetković: „Nova metoda određivanja sastava ekstrakta lista aronije (Aronia melanocarpa (Michx.) Elliott) primenom UHPLC-MS analize“, pp. 1-13, Ev.br. 06-2234/1 Univerzitet u Nišu, Tehnološki fakultet u Leskovcu, 16.12.2016.
Sanja Petrović, Dragan Cvetković, Saša Savić, Jelena B. Zvezdanović: „Provera stabilnosti hlorofila unutar lipozoma upotrebom lipoidnog azo-inicijatora“ Ev.br. 06-1077/1 Univerzitet u Nišu, Tehnološki fakultet u Leskovcu, 23.06.2016.
Jelena B. Zvezdanović, D. Cvetković, D. Marković: „Ispitivanje lipidne peroksidacije u rastvorima lipida korišćenjem hidrofilnog azo-inicijatora”, pp.1-13, Univerzitet u Nišu, Tehnološki fakultet Leskovac, ev.br.06-2177-1. 27.12.2012. DIAPHARM DOO Niš.
S. Petrović, Jelena B. Zvezdanović, D. Marković: „Izolovanje i identifikacija hlorofilida iz spanaća HPLC metodom”, pp.1-13, Univerzitet u Nišu, Tehnološki fakultet Leskovac, ev.br.06-2179-1, 27.12.2012. DIAPHARM DOO Niš.
Jelena B. Zvezdanović, S. Petrović: „Metoda kompleksiranja hlorofila sa bakrom - identifikacija i stabilnost prema UVB zračenju“, pp.1-13, Univerzitet u Nišu, Tehnološki fakultet Leskovac, ev.br.06-2366-1, 20.12.2013. DIAPHARM DOO Niš.
Jelena B. Zvezdanović, S. Petrović: "LC-MS metoda za identifikaciju hlorofilina" pp.1-13, Univerzitet u Nišu, Tehnološki fakultet Leskovac, ev.br.06-11566/1, 02.07.2014. DIAPHARM DOO Niš.
M84
Novi tehnološki postupak
Marija Stevanović, Dragan Cvetković, Ljiljana Stanojević, Milorad Cakić, Jelena Zvezdanović, Sanja Petrović, Jelena Stanojević: Sinteza nanočestica srebra stabiliuzovanih vodenim ekstraktom lista gajene jagode (Fragaria x Ananassa Duch), pp, Tehnološki Fakultet Leskovac, ev. br. 04-120/10, 25. 12. 2017. Korisnik DIAPHARM DOO Niš
Jelena B. Zvezdanović, S. Petrović, D. Marković: „Laboratorijski tehnološki postupak izolacije hlorofila iz biljnog materijala“ pp. 1-17, Univerzitet u Nišu, Tehnološki fakultet Leskovac, ev.br.06-2185-1. 28.12.2012. DIAPHARM DOO Niš.
S. Petrović, Jelena B. Zvezdanović: „Laboratorijski tehnološki postupak za inkorporaciju izolovanog hlorofilida u lipozome“ pp. 1-18, Univerzitet u Nišu, Tehnološki fakultet Leskovac, ev.br.06-2365-1. 20.12.2013. DIAPHARM DOO Niš.