TY  - CONF
AU  - Simović, Nemanja
AU  - Dobrosavljević, Jovan N.
AU  - Milenković, Ivan
AU  - Branković, Goran
AU  - Branković, Zorica
AU  - Ćirković, Jovana
AU  - Radojković, Aleksandar
AU  - Perać, Sanja
AU  - Jovanović, Jelena
AU  - Jovanović, Dušan
AU  - Milanovic, Slobodan
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2208
AB  - With the significant loss of biodiversity in the 20th and 21st century, pollution of air, soil, and water, alternatives to chemical pesticides are needed to preserve nature. One of the alternatives is the usage of plant components as pest insect control. They are an appropriate alternative to chemical pesticides as they are cost-effective, easy, and safe to use, do not affect the environment or beneficial insects negatively, and are still an effective measure against pest insects. The biggest challenge with plant components is that they are biologically unstable. That is why further insight into the effectiveness of different extracts and oils against different pest insects is needed. We tested the antifeedant activity of plant products derived from neem (Azadirachta indica A.Juss.), and linalool on the Spongy moth (Lymantria dispar L, 1758) larvae. To test the efficiency of these compounds, we conducted choice tests in laboratory conditions. Two disks (treatment and control) cut from red oak (Quercus rubra L.) leaves were presented to the second instar spongy moth larvae in Petri dishes for the testing. Twenty-five Petri dishes were used for each of the tested compounds at four concentrations (200 in total). The tested compounds showed the most significant effect at higher concentrations.
C3  - XIV International Scientific Agriculture Symposium "AGROSYM 2023"
T1  - Antifeedant activity of the plant products derived from the neem and linalool on the spongy moth larvae
SP  - 345
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2208
ER  - 

@conference{
author = "Simović, Nemanja and Dobrosavljević, Jovan N. and Milenković, Ivan and Branković, Goran and Branković, Zorica and Ćirković, Jovana and Radojković, Aleksandar and Perać, Sanja and Jovanović, Jelena and Jovanović, Dušan and Milanovic, Slobodan",
year = "2023",
abstract = "With the significant loss of biodiversity in the 20th and 21st century, pollution of air, soil, and water, alternatives to chemical pesticides are needed to preserve nature. One of the alternatives is the usage of plant components as pest insect control. They are an appropriate alternative to chemical pesticides as they are cost-effective, easy, and safe to use, do not affect the environment or beneficial insects negatively, and are still an effective measure against pest insects. The biggest challenge with plant components is that they are biologically unstable. That is why further insight into the effectiveness of different extracts and oils against different pest insects is needed. We tested the antifeedant activity of plant products derived from neem (Azadirachta indica A.Juss.), and linalool on the Spongy moth (Lymantria dispar L, 1758) larvae. To test the efficiency of these compounds, we conducted choice tests in laboratory conditions. Two disks (treatment and control) cut from red oak (Quercus rubra L.) leaves were presented to the second instar spongy moth larvae in Petri dishes for the testing. Twenty-five Petri dishes were used for each of the tested compounds at four concentrations (200 in total). The tested compounds showed the most significant effect at higher concentrations.",
journal = "XIV International Scientific Agriculture Symposium "AGROSYM 2023"",
title = "Antifeedant activity of the plant products derived from the neem and linalool on the spongy moth larvae",
pages = "345",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2208"
}

Simović, N., Dobrosavljević, J. N., Milenković, I., Branković, G., Branković, Z., Ćirković, J., Radojković, A., Perać, S., Jovanović, J., Jovanović, D.,& Milanovic, S.. (2023). Antifeedant activity of the plant products derived from the neem and linalool on the spongy moth larvae. in XIV International Scientific Agriculture Symposium "AGROSYM 2023", 345.
https://hdl.handle.net/21.15107/rcub_rimsi_2208

Simović N, Dobrosavljević JN, Milenković I, Branković G, Branković Z, Ćirković J, Radojković A, Perać S, Jovanović J, Jovanović D, Milanovic S. Antifeedant activity of the plant products derived from the neem and linalool on the spongy moth larvae. in XIV International Scientific Agriculture Symposium "AGROSYM 2023". 2023;:345.
https://hdl.handle.net/21.15107/rcub_rimsi_2208 .

Simović, Nemanja, Dobrosavljević, Jovan N., Milenković, Ivan, Branković, Goran, Branković, Zorica, Ćirković, Jovana, Radojković, Aleksandar, Perać, Sanja, Jovanović, Jelena, Jovanović, Dušan, Milanovic, Slobodan, "Antifeedant activity of the plant products derived from the neem and linalool on the spongy moth larvae" in XIV International Scientific Agriculture Symposium "AGROSYM 2023" (2023):345,
https://hdl.handle.net/21.15107/rcub_rimsi_2208 .

TY  - CONF
AU  - Đikanović, Daniela
AU  - Prodanović, Olivera
AU  - Dragišić Maksimović, Jelena
AU  - Jovanović, Jelena
AU  - Kalauzi, Aleksandar
AU  - Spasojević, Dragica
AU  - Radotić, Ksenija
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1997
AB  - In this study, we investigated, in an in vitro system, the interaction of SiO2 (as a complex with NH4OH) with the peroxidase-catalyzed polymerization of lignin monomer into lignin model compound DHP, imitating conditions of the last step of lignin formation in the cell walls. The structure of obtained polymer was monitored using fluorescent spectroscopy and AFM 30 minutes after the start of synthesis. We studied effect of two different Si concentrations, 0.6 mM and 6 mM. Analysis of the DHP fluorescent spectra, and the application of mathematical decomposition clearly shows that structure of lignin model compound depends on Si concentration in the reaction mixture. The amount of Si affects the distribution of electrons in the DHP polymer. When silicon is present at a concentration of 6 mM, the position of the longest-wavelength APD band shifts towards shorter wavelengths compared to the position of the APD band for 0.6 mM Si. This indicates that during polymer synthesis, higher concentration of silicon may inhibit the formation of pi-electronic structures, which are responsible for electron delocalization. AFM images also show differences in the size and regularity of DHP globules.
PB  - University of Belgrade, Technical Faculty in Bor
C3  - 30th International Conference Ecological Truth and Environmental Research - EcoTER'23
T1  - Investigation of silica-lignin interaction. Application of AFM and fluorescence techniques
EP  - 98
SP  - 94
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1997
ER  - 

@conference{
author = "Đikanović, Daniela and Prodanović, Olivera and Dragišić Maksimović, Jelena and Jovanović, Jelena and Kalauzi, Aleksandar and Spasojević, Dragica and Radotić, Ksenija",
year = "2023",
abstract = "In this study, we investigated, in an in vitro system, the interaction of SiO2 (as a complex with NH4OH) with the peroxidase-catalyzed polymerization of lignin monomer into lignin model compound DHP, imitating conditions of the last step of lignin formation in the cell walls. The structure of obtained polymer was monitored using fluorescent spectroscopy and AFM 30 minutes after the start of synthesis. We studied effect of two different Si concentrations, 0.6 mM and 6 mM. Analysis of the DHP fluorescent spectra, and the application of mathematical decomposition clearly shows that structure of lignin model compound depends on Si concentration in the reaction mixture. The amount of Si affects the distribution of electrons in the DHP polymer. When silicon is present at a concentration of 6 mM, the position of the longest-wavelength APD band shifts towards shorter wavelengths compared to the position of the APD band for 0.6 mM Si. This indicates that during polymer synthesis, higher concentration of silicon may inhibit the formation of pi-electronic structures, which are responsible for electron delocalization. AFM images also show differences in the size and regularity of DHP globules.",
publisher = "University of Belgrade, Technical Faculty in Bor",
journal = "30th International Conference Ecological Truth and Environmental Research - EcoTER'23",
title = "Investigation of silica-lignin interaction. Application of AFM and fluorescence techniques",
pages = "98-94",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1997"
}

Đikanović, D., Prodanović, O., Dragišić Maksimović, J., Jovanović, J., Kalauzi, A., Spasojević, D.,& Radotić, K.. (2023). Investigation of silica-lignin interaction. Application of AFM and fluorescence techniques. in 30th International Conference Ecological Truth and Environmental Research - EcoTER'23
University of Belgrade, Technical Faculty in Bor., 94-98.
https://hdl.handle.net/21.15107/rcub_rimsi_1997

Đikanović D, Prodanović O, Dragišić Maksimović J, Jovanović J, Kalauzi A, Spasojević D, Radotić K. Investigation of silica-lignin interaction. Application of AFM and fluorescence techniques. in 30th International Conference Ecological Truth and Environmental Research - EcoTER'23. 2023;:94-98.
https://hdl.handle.net/21.15107/rcub_rimsi_1997 .

Đikanović, Daniela, Prodanović, Olivera, Dragišić Maksimović, Jelena, Jovanović, Jelena, Kalauzi, Aleksandar, Spasojević, Dragica, Radotić, Ksenija, "Investigation of silica-lignin interaction. Application of AFM and fluorescence techniques" in 30th International Conference Ecological Truth and Environmental Research - EcoTER'23 (2023):94-98,
https://hdl.handle.net/21.15107/rcub_rimsi_1997 .

TY  - CONF
AU  - Jelić, Stefan
AU  - Ćirković, Jovana
AU  - Jovanović, Jelena
AU  - Radojković, Aleksandar
AU  - Novaković, Tatjana
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2296
AB  - Efficiency of a semiconductor catalyst is directly correlated to its surface to
which a reactant species is adsorbed. There are several ways to optimize the active
surface, such as synthesis, processing or any aftertreatment of a photocatalytic
material. Our research was focused on modifying the existing sonochemically
assisted synthesis of bismuth vanadate.
Two optimization methods were used in order to increase specific surface of the
photocatalyst and number of its active sites. The first method was to change
concentration of reactants used in the synthesis to reduce agglomeration of bismuth
vanadate. Sonochemically assisted synthesis was performed with three different
concentrations of reactants to observe agglomeration tendency of the catalyst. The
other method included the use of sodium dodecyl sulfate (SDS) as a surfactant in
synthesis at highest concentration in order to hinder the particle growth.
Bismuth vanadate was shown to degrade mordant blue 9 dye (MB9) most
effectively in alkaline medium (pH = 13) under visible light, discoloring the solution
in under 2 hours, while the highest adsorption of MB9 is observed in acidic solution
(pH = 1).
PB  - Serbian Society for Ceramic Materials
T1  - Synthesis of Bismuth Vanadate Photocatalyst with Enhanced Adsorption Properties
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2296
ER  - 

@conference{
author = "Jelić, Stefan and Ćirković, Jovana and Jovanović, Jelena and Radojković, Aleksandar and Novaković, Tatjana and Branković, Goran and Branković, Zorica",
year = "2023",
abstract = "Efficiency of a semiconductor catalyst is directly correlated to its surface to
which a reactant species is adsorbed. There are several ways to optimize the active
surface, such as synthesis, processing or any aftertreatment of a photocatalytic
material. Our research was focused on modifying the existing sonochemically
assisted synthesis of bismuth vanadate.
Two optimization methods were used in order to increase specific surface of the
photocatalyst and number of its active sites. The first method was to change
concentration of reactants used in the synthesis to reduce agglomeration of bismuth
vanadate. Sonochemically assisted synthesis was performed with three different
concentrations of reactants to observe agglomeration tendency of the catalyst. The
other method included the use of sodium dodecyl sulfate (SDS) as a surfactant in
synthesis at highest concentration in order to hinder the particle growth.
Bismuth vanadate was shown to degrade mordant blue 9 dye (MB9) most
effectively in alkaline medium (pH = 13) under visible light, discoloring the solution
in under 2 hours, while the highest adsorption of MB9 is observed in acidic solution
(pH = 1).",
publisher = "Serbian Society for Ceramic Materials",
title = "Synthesis of Bismuth Vanadate Photocatalyst with Enhanced Adsorption Properties",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2296"
}

Jelić, S., Ćirković, J., Jovanović, J., Radojković, A., Novaković, T., Branković, G.,& Branković, Z.. (2023). Synthesis of Bismuth Vanadate Photocatalyst with Enhanced Adsorption Properties. 
Serbian Society for Ceramic Materials..
https://hdl.handle.net/21.15107/rcub_rimsi_2296

Jelić S, Ćirković J, Jovanović J, Radojković A, Novaković T, Branković G, Branković Z. Synthesis of Bismuth Vanadate Photocatalyst with Enhanced Adsorption Properties. 2023;.
https://hdl.handle.net/21.15107/rcub_rimsi_2296 .

Jelić, Stefan, Ćirković, Jovana, Jovanović, Jelena, Radojković, Aleksandar, Novaković, Tatjana, Branković, Goran, Branković, Zorica, "Synthesis of Bismuth Vanadate Photocatalyst with Enhanced Adsorption Properties" (2023),
https://hdl.handle.net/21.15107/rcub_rimsi_2296 .

TY  - CONF
AU  - Bartolić, Dragana
AU  - Đikanović, Daniela
AU  - Stanković, Mira
AU  - Prokopijević, Miloš
AU  - Jovanović, Jelena
AU  - Dragišić Maksimović, Jelena
AU  - Radotić, Ksenija
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1704
AB  - Silica is beneficial element for plants. Many studies of silica show the useful effects that Si can provide on plant-environment relationships in a wide variety of crops, as increase in growth and yield and improvement of resistance to metal toxicity, salt stress, drought resistance etc. The occurrence of Si within a plant is a result of its uptake in the form of soluble Si(OH)4 or Si(OH)3O ion from the soil, and its polymerization at a final location. Si is mostly accumulated in the cell walls (CWs), thus providing strengthening of CWs, increasing mechanical strength, and alleviating effects of various biotic and abiotic types of stress. Lignin, as one of the main components of the plant CW, is a natural phenolic polymer with high molecular weight and complex structure. Accumulation of silica in plants is directly connected with chemistry and structure of lignin. Silicon affects the composition of CWs by its binding to the phenolic and carbohydrate CW components in polymerization reactions by altering linkages of non-cellulosic polymers and lignin. We studied, in an in vitro system, the interaction of SiO2 with the peroxidase catalyzed polymerization of a lignin monomer into the lignin model compound (DHP). Fluorescence microscopy and spectroscopy combined with AFM technique showed that Si was bound to the final polymer, and the structure of the Si-DHP differed from pure DHP. We show that Si significantly influence on lignin structure. The results contribute to understanding of Si binding to lignin in cell walls, which may have impact on possible Si applications in agriculture.
PB  - East Sarajevo : Faculty of Agriculture, 2022
C3  - XIII International Scientific Agriculture Symposium “AGROSYM 2022”
T1  - INVESTIGATION OF Si-LIGNIN INTERACTION BY FLUORESCENCE TECHNIQUES AND ATOMIC FORCE MICROSCOPY- POSSIBLE APPLICATION IN AGRICULTURE
SP  - 341
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1704
ER  - 

@conference{
author = "Bartolić, Dragana and Đikanović, Daniela and Stanković, Mira and Prokopijević, Miloš and Jovanović, Jelena and Dragišić Maksimović, Jelena and Radotić, Ksenija",
year = "2022",
abstract = "Silica is beneficial element for plants. Many studies of silica show the useful effects that Si can provide on plant-environment relationships in a wide variety of crops, as increase in growth and yield and improvement of resistance to metal toxicity, salt stress, drought resistance etc. The occurrence of Si within a plant is a result of its uptake in the form of soluble Si(OH)4 or Si(OH)3O ion from the soil, and its polymerization at a final location. Si is mostly accumulated in the cell walls (CWs), thus providing strengthening of CWs, increasing mechanical strength, and alleviating effects of various biotic and abiotic types of stress. Lignin, as one of the main components of the plant CW, is a natural phenolic polymer with high molecular weight and complex structure. Accumulation of silica in plants is directly connected with chemistry and structure of lignin. Silicon affects the composition of CWs by its binding to the phenolic and carbohydrate CW components in polymerization reactions by altering linkages of non-cellulosic polymers and lignin. We studied, in an in vitro system, the interaction of SiO2 with the peroxidase catalyzed polymerization of a lignin monomer into the lignin model compound (DHP). Fluorescence microscopy and spectroscopy combined with AFM technique showed that Si was bound to the final polymer, and the structure of the Si-DHP differed from pure DHP. We show that Si significantly influence on lignin structure. The results contribute to understanding of Si binding to lignin in cell walls, which may have impact on possible Si applications in agriculture.",
publisher = "East Sarajevo : Faculty of Agriculture, 2022",
journal = "XIII International Scientific Agriculture Symposium “AGROSYM 2022”",
title = "INVESTIGATION OF Si-LIGNIN INTERACTION BY FLUORESCENCE TECHNIQUES AND ATOMIC FORCE MICROSCOPY- POSSIBLE APPLICATION IN AGRICULTURE",
pages = "341",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1704"
}

Bartolić, D., Đikanović, D., Stanković, M., Prokopijević, M., Jovanović, J., Dragišić Maksimović, J.,& Radotić, K.. (2022). INVESTIGATION OF Si-LIGNIN INTERACTION BY FLUORESCENCE TECHNIQUES AND ATOMIC FORCE MICROSCOPY- POSSIBLE APPLICATION IN AGRICULTURE. in XIII International Scientific Agriculture Symposium “AGROSYM 2022”
East Sarajevo : Faculty of Agriculture, 2022., 341.
https://hdl.handle.net/21.15107/rcub_rimsi_1704

Bartolić D, Đikanović D, Stanković M, Prokopijević M, Jovanović J, Dragišić Maksimović J, Radotić K. INVESTIGATION OF Si-LIGNIN INTERACTION BY FLUORESCENCE TECHNIQUES AND ATOMIC FORCE MICROSCOPY- POSSIBLE APPLICATION IN AGRICULTURE. in XIII International Scientific Agriculture Symposium “AGROSYM 2022”. 2022;:341.
https://hdl.handle.net/21.15107/rcub_rimsi_1704 .

Bartolić, Dragana, Đikanović, Daniela, Stanković, Mira, Prokopijević, Miloš, Jovanović, Jelena, Dragišić Maksimović, Jelena, Radotić, Ksenija, "INVESTIGATION OF Si-LIGNIN INTERACTION BY FLUORESCENCE TECHNIQUES AND ATOMIC FORCE MICROSCOPY- POSSIBLE APPLICATION IN AGRICULTURE" in XIII International Scientific Agriculture Symposium “AGROSYM 2022” (2022):341,
https://hdl.handle.net/21.15107/rcub_rimsi_1704 .

TY  - THES
AU  - Jovanović, Jelena
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2317
AB  - Predmet istraživanja ove doktorske teze je priprema biopolimernih emulzija i disperzija, kao i dobijanje tankih filmova i prevlaka od njih, koje se mogu koristiti u aktivnom pakovanju za zaštitu namirnica i kao biopesticid. Glavni koncept naučno-istraživačkog rada zasniva se na ugradnji aktivnih komponenti (etarsko ulje limunove trave, Zn(CH3COO)2∙2H2O, nanočestice ZnO) u polimernu matricu pektina i hitozana, sa ciljem da se postigne njihovo sporo otpuštanje i produžena antimikrobna/ insekticidna aktivnost. Emulzije i filmovi su ispitani različitim metodama u cilju strukturne (Particle Analyzer, ATR-FTIR, TGA/DTG i DSC) i morfološke (AFM, SEM) karakterizacije. Takođe, određena su mehanička svojstava i rastvorljivost filmova. Antibakterijsko dejstvo emulzija i disperzija testirano je u in vitro uslovima na vrstama bakterija koje su česti uzročnici kontaminacije i trovanja namirnicama (Escherichia coli, Bacillus subtilis i Staphylococcus aureus). Filmovi na bazi hitozana pokazali su bolja mehanička svojstva i niži stepen rastvorljivosti u poređenju sa filmovima na bazi pektina. Emulzije i disperzije na bazi hitozana su pokazale jači antibakterijski efekat u in vitro uslovima, dok je kod emulzija na bazi pektina primećeno sinergističko dejstvo između aktivnih komponenti. Efikasnost prevlaka, koje bi se primenjivale u izradi aktivnog pakovanja, testirana je u in vivo uslovima na svežim malinama (Rubus idaeus L.), pri čemu je ostvaren produžetak svežine i roka trajanja maline sa četiri na osam dana. Dejstvo emulzije na bazi pektina kao biopesticida ispitano je na krompirovom moljcu (Phthorimaea operculella L.), kada je efekat sporog otpuštanja doveo do produženog dejstva bioaktivnih jedinjenja inkapsuliranog etarskog ulja u efikasnom suzbijanju krompirovog moljca.
T1  - Inkapsulacija aktivnih komponenti u pektin i hitozan za primenu u aktivnom pakovanju i biopesticidima
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2317
ER  - 

@phdthesis{
author = "Jovanović, Jelena",
year = "2022",
abstract = "Predmet istraživanja ove doktorske teze je priprema biopolimernih emulzija i disperzija, kao i dobijanje tankih filmova i prevlaka od njih, koje se mogu koristiti u aktivnom pakovanju za zaštitu namirnica i kao biopesticid. Glavni koncept naučno-istraživačkog rada zasniva se na ugradnji aktivnih komponenti (etarsko ulje limunove trave, Zn(CH3COO)2∙2H2O, nanočestice ZnO) u polimernu matricu pektina i hitozana, sa ciljem da se postigne njihovo sporo otpuštanje i produžena antimikrobna/ insekticidna aktivnost. Emulzije i filmovi su ispitani različitim metodama u cilju strukturne (Particle Analyzer, ATR-FTIR, TGA/DTG i DSC) i morfološke (AFM, SEM) karakterizacije. Takođe, određena su mehanička svojstava i rastvorljivost filmova. Antibakterijsko dejstvo emulzija i disperzija testirano je u in vitro uslovima na vrstama bakterija koje su česti uzročnici kontaminacije i trovanja namirnicama (Escherichia coli, Bacillus subtilis i Staphylococcus aureus). Filmovi na bazi hitozana pokazali su bolja mehanička svojstva i niži stepen rastvorljivosti u poređenju sa filmovima na bazi pektina. Emulzije i disperzije na bazi hitozana su pokazale jači antibakterijski efekat u in vitro uslovima, dok je kod emulzija na bazi pektina primećeno sinergističko dejstvo između aktivnih komponenti. Efikasnost prevlaka, koje bi se primenjivale u izradi aktivnog pakovanja, testirana je u in vivo uslovima na svežim malinama (Rubus idaeus L.), pri čemu je ostvaren produžetak svežine i roka trajanja maline sa četiri na osam dana. Dejstvo emulzije na bazi pektina kao biopesticida ispitano je na krompirovom moljcu (Phthorimaea operculella L.), kada je efekat sporog otpuštanja doveo do produženog dejstva bioaktivnih jedinjenja inkapsuliranog etarskog ulja u efikasnom suzbijanju krompirovog moljca.",
title = "Inkapsulacija aktivnih komponenti u pektin i hitozan za primenu u aktivnom pakovanju i biopesticidima",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2317"
}

Jovanović, J.. (2022). Inkapsulacija aktivnih komponenti u pektin i hitozan za primenu u aktivnom pakovanju i biopesticidima. .
https://hdl.handle.net/21.15107/rcub_rimsi_2317

Jovanović J. Inkapsulacija aktivnih komponenti u pektin i hitozan za primenu u aktivnom pakovanju i biopesticidima. 2022;.
https://hdl.handle.net/21.15107/rcub_rimsi_2317 .

Jovanović, Jelena, "Inkapsulacija aktivnih komponenti u pektin i hitozan za primenu u aktivnom pakovanju i biopesticidima" (2022),
https://hdl.handle.net/21.15107/rcub_rimsi_2317 .

TY  - CONF
AU  - Jelić, Stefan
AU  - Ćirković, Jovana
AU  - Jovanović, Jelena
AU  - Radojković, Aleksandar
AU  - Novaković, Tatjana
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1776
AB  - The BiVO4 sample was successfully synthesized from a mixture of ammonium vanadate, bismuth(III) nitrate, and nitric acid exposed to ultrasound irradiation. Structure, microstructure and optical properties of the obtained BiVO4 nanopowder were investigated. X-ray diffraction (XRD) analysis confirmed single phase monoclinic lattice system with average crystallite size of 50 nm in diameter. Scanning electron microscopy (SEM) micrographs revealed the tendency of crystallites to agglomerate forming larger irregular sub-micron spheres. Brunauer-Emmett-Teller (BET) method was used to estimate the specific surface area of the sample and determine pore shape and size. UV–vis spectroscopy measurements have revealed favorably high absorbance of the visible light with the calculated band-gap value of 2.48 eV. Calculated values of valence and conducting band energies are +2.77 eV and +0.29 eV respectively, suggested that BiVO4 can be used for photocatalytic degradation under sunlight irradiation as evident from the UV–vis spectrum.
PB  - Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia
C3  - The 6 th Conference of The Serbian Society for Ceramic Materials: 6CSCS-2022, Belgrade, Serbia
T1  - Ultrasonic synthesis and characterization of mesoporous monoclinic BiVO4 nanopowder
SP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1776
ER  - 

@conference{
author = "Jelić, Stefan and Ćirković, Jovana and Jovanović, Jelena and Radojković, Aleksandar and Novaković, Tatjana and Branković, Goran and Branković, Zorica",
year = "2022",
abstract = "The BiVO4 sample was successfully synthesized from a mixture of ammonium vanadate, bismuth(III) nitrate, and nitric acid exposed to ultrasound irradiation. Structure, microstructure and optical properties of the obtained BiVO4 nanopowder were investigated. X-ray diffraction (XRD) analysis confirmed single phase monoclinic lattice system with average crystallite size of 50 nm in diameter. Scanning electron microscopy (SEM) micrographs revealed the tendency of crystallites to agglomerate forming larger irregular sub-micron spheres. Brunauer-Emmett-Teller (BET) method was used to estimate the specific surface area of the sample and determine pore shape and size. UV–vis spectroscopy measurements have revealed favorably high absorbance of the visible light with the calculated band-gap value of 2.48 eV. Calculated values of valence and conducting band energies are +2.77 eV and +0.29 eV respectively, suggested that BiVO4 can be used for photocatalytic degradation under sunlight irradiation as evident from the UV–vis spectrum.",
publisher = "Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia",
journal = "The 6 th Conference of The Serbian Society for Ceramic Materials: 6CSCS-2022, Belgrade, Serbia",
title = "Ultrasonic synthesis and characterization of mesoporous monoclinic BiVO4 nanopowder",
pages = "64",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1776"
}

Jelić, S., Ćirković, J., Jovanović, J., Radojković, A., Novaković, T., Branković, G.,& Branković, Z.. (2022). Ultrasonic synthesis and characterization of mesoporous monoclinic BiVO4 nanopowder. in The 6 th Conference of The Serbian Society for Ceramic Materials: 6CSCS-2022, Belgrade, Serbia
Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia., 64.
https://hdl.handle.net/21.15107/rcub_rimsi_1776

Jelić S, Ćirković J, Jovanović J, Radojković A, Novaković T, Branković G, Branković Z. Ultrasonic synthesis and characterization of mesoporous monoclinic BiVO4 nanopowder. in The 6 th Conference of The Serbian Society for Ceramic Materials: 6CSCS-2022, Belgrade, Serbia. 2022;:64.
https://hdl.handle.net/21.15107/rcub_rimsi_1776 .

Jelić, Stefan, Ćirković, Jovana, Jovanović, Jelena, Radojković, Aleksandar, Novaković, Tatjana, Branković, Goran, Branković, Zorica, "Ultrasonic synthesis and characterization of mesoporous monoclinic BiVO4 nanopowder" in The 6 th Conference of The Serbian Society for Ceramic Materials: 6CSCS-2022, Belgrade, Serbia (2022):64,
https://hdl.handle.net/21.15107/rcub_rimsi_1776 .

TY  - CONF
AU  - Jovanović, Jelena
AU  - Jelić, Stefan
AU  - Ćirković, Jovana
AU  - Radojković, Aleksandar
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1751
AB  - The photocatalytic degradation of highly toxic azo dye Mordant Blue 9 (MB 9) was investigated using single-phase monoclinic BiVO4 nanopowder as a photocatalyst under the simulated solar irradiation. The photodegradation process as a function of different pH values of aqueous dye solution (pH = 1 – 13) and irradiation time was investigated, and the complete degradation mechanism was proposed. MB 9 was resistant to direct photolysis and the BiVO4 nanoparticles exhibited higher photocatalytic activity in a basic medium than in neutral and acid media. Photodegradation of the dye molecules occurred primarily due to a reaction with the photo-generated holes and OH– anions forming ∙OH radicals. The alkaline pH range favors the formation of more ∙OH radicals through the oxidation of hydroxide ions existing at the BiVO4 surface, thus the effectiveness of the photocatalytic process significantly increased. BiVO4 photocatalyst was stable and active under simulated solar irradiation over four consecutive cycles, which confirms its good photocatalytic properties.
PB  - Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia
C3  - The 6 th Conference of The Serbian Society for Ceramic Materials: 6CSCS-2022, Belgrade, Serbia
T1  - Visible-light photocatalytic degradation of mordant blue 9 by BiVO4 nanopowder
VL  - 55
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1751
ER  - 

@conference{
author = "Jovanović, Jelena and Jelić, Stefan and Ćirković, Jovana and Radojković, Aleksandar and Branković, Goran and Branković, Zorica",
year = "2022",
abstract = "The photocatalytic degradation of highly toxic azo dye Mordant Blue 9 (MB 9) was investigated using single-phase monoclinic BiVO4 nanopowder as a photocatalyst under the simulated solar irradiation. The photodegradation process as a function of different pH values of aqueous dye solution (pH = 1 – 13) and irradiation time was investigated, and the complete degradation mechanism was proposed. MB 9 was resistant to direct photolysis and the BiVO4 nanoparticles exhibited higher photocatalytic activity in a basic medium than in neutral and acid media. Photodegradation of the dye molecules occurred primarily due to a reaction with the photo-generated holes and OH– anions forming ∙OH radicals. The alkaline pH range favors the formation of more ∙OH radicals through the oxidation of hydroxide ions existing at the BiVO4 surface, thus the effectiveness of the photocatalytic process significantly increased. BiVO4 photocatalyst was stable and active under simulated solar irradiation over four consecutive cycles, which confirms its good photocatalytic properties.",
publisher = "Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia",
journal = "The 6 th Conference of The Serbian Society for Ceramic Materials: 6CSCS-2022, Belgrade, Serbia",
title = "Visible-light photocatalytic degradation of mordant blue 9 by BiVO4 nanopowder",
volume = "55",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1751"
}

Jovanović, J., Jelić, S., Ćirković, J., Radojković, A., Branković, G.,& Branković, Z.. (2022). Visible-light photocatalytic degradation of mordant blue 9 by BiVO4 nanopowder. in The 6 th Conference of The Serbian Society for Ceramic Materials: 6CSCS-2022, Belgrade, Serbia
Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia., 55.
https://hdl.handle.net/21.15107/rcub_rimsi_1751

Jovanović J, Jelić S, Ćirković J, Radojković A, Branković G, Branković Z. Visible-light photocatalytic degradation of mordant blue 9 by BiVO4 nanopowder. in The 6 th Conference of The Serbian Society for Ceramic Materials: 6CSCS-2022, Belgrade, Serbia. 2022;55.
https://hdl.handle.net/21.15107/rcub_rimsi_1751 .

Jovanović, Jelena, Jelić, Stefan, Ćirković, Jovana, Radojković, Aleksandar, Branković, Goran, Branković, Zorica, "Visible-light photocatalytic degradation of mordant blue 9 by BiVO4 nanopowder" in The 6 th Conference of The Serbian Society for Ceramic Materials: 6CSCS-2022, Belgrade, Serbia, 55 (2022),
https://hdl.handle.net/21.15107/rcub_rimsi_1751 .

TY  - CONF
AU  - Jovanović, Jelena
AU  - Ćirković, Jovana
AU  - Radojković, Aleksandar
AU  - Joksimović, Kristina
AU  - Omerović, Nejra
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1740
AB  - The subject of this research was the development of biodegradable and eco-friendly material based on natural biopolymers from renewable sources, with the addition of active components for application in active food packaging. The main principle was the incorporation of the active components (lemongrass (Cymbopogon citratus L.) essential oil, ZnO nanoparticles, or Zn(CH3COO)2∙2H2O) with antimicrobial activity in the polymer matrix (chitosan, pectin, and gelatin), and their slow release during the time. All of the used components are listed as GRAS (Generally Recognized as Safe) by the U.S. Food and Drug Administration. Different formulations of emulsions and dispersions were processed for mutual comparison. The stability of chitosan and pectin emulsions was determined by using laser diffraction methods. Chitosan emulsions exhibited higher stability during 30 days of storage. The chitosan emulsions and dispersions exhibited a higher antibacterial effect in vitro against Escherichia coli, Bacillus subtilis, and Staphylococcus aureus. Biopolymer coatings were formed by the spraying of emulsions on existing packaging. The effects of biopolymer coatings on the development of microorganisms on fresh raspberries (Rubus idaeus L.) were performed in vivo during eight days of raspberry storage at refrigerator temperature. The tested coatings extended the shelf life of stored raspberries from four to eight days. The synergistic effect between lemongrass essential oil and ZnO nanoparticles or Zn(CH3COO)2∙2H2O was observed both in vivo and in vitro.
PB  - University of Novi Sad, Faculty of Technology Novi Sad
C3  - 2nd International Conference on Advanced Production and Processing (ICAPP), Novi Sad, Serbia
T1  - CHITOSAN- AND PECTIN-BASED COATINGS WITH
INCORPORATED ACTIVE COMPONENTS FOR APPLICATION IN
ACTIVE FOOD PACKAGING
SP  - 115
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1740
ER  - 

@conference{
author = "Jovanović, Jelena and Ćirković, Jovana and Radojković, Aleksandar and Joksimović, Kristina and Omerović, Nejra and Branković, Goran and Branković, Zorica",
year = "2022",
abstract = "The subject of this research was the development of biodegradable and eco-friendly material based on natural biopolymers from renewable sources, with the addition of active components for application in active food packaging. The main principle was the incorporation of the active components (lemongrass (Cymbopogon citratus L.) essential oil, ZnO nanoparticles, or Zn(CH3COO)2∙2H2O) with antimicrobial activity in the polymer matrix (chitosan, pectin, and gelatin), and their slow release during the time. All of the used components are listed as GRAS (Generally Recognized as Safe) by the U.S. Food and Drug Administration. Different formulations of emulsions and dispersions were processed for mutual comparison. The stability of chitosan and pectin emulsions was determined by using laser diffraction methods. Chitosan emulsions exhibited higher stability during 30 days of storage. The chitosan emulsions and dispersions exhibited a higher antibacterial effect in vitro against Escherichia coli, Bacillus subtilis, and Staphylococcus aureus. Biopolymer coatings were formed by the spraying of emulsions on existing packaging. The effects of biopolymer coatings on the development of microorganisms on fresh raspberries (Rubus idaeus L.) were performed in vivo during eight days of raspberry storage at refrigerator temperature. The tested coatings extended the shelf life of stored raspberries from four to eight days. The synergistic effect between lemongrass essential oil and ZnO nanoparticles or Zn(CH3COO)2∙2H2O was observed both in vivo and in vitro.",
publisher = "University of Novi Sad, Faculty of Technology Novi Sad",
journal = "2nd International Conference on Advanced Production and Processing (ICAPP), Novi Sad, Serbia",
title = "CHITOSAN- AND PECTIN-BASED COATINGS WITH
INCORPORATED ACTIVE COMPONENTS FOR APPLICATION IN
ACTIVE FOOD PACKAGING",
pages = "115",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1740"
}

Jovanović, J., Ćirković, J., Radojković, A., Joksimović, K., Omerović, N., Branković, G.,& Branković, Z.. (2022). CHITOSAN- AND PECTIN-BASED COATINGS WITH
INCORPORATED ACTIVE COMPONENTS FOR APPLICATION IN
ACTIVE FOOD PACKAGING. in 2nd International Conference on Advanced Production and Processing (ICAPP), Novi Sad, Serbia
University of Novi Sad, Faculty of Technology Novi Sad., 115.
https://hdl.handle.net/21.15107/rcub_rimsi_1740

Jovanović J, Ćirković J, Radojković A, Joksimović K, Omerović N, Branković G, Branković Z. CHITOSAN- AND PECTIN-BASED COATINGS WITH
INCORPORATED ACTIVE COMPONENTS FOR APPLICATION IN
ACTIVE FOOD PACKAGING. in 2nd International Conference on Advanced Production and Processing (ICAPP), Novi Sad, Serbia. 2022;:115.
https://hdl.handle.net/21.15107/rcub_rimsi_1740 .

Jovanović, Jelena, Ćirković, Jovana, Radojković, Aleksandar, Joksimović, Kristina, Omerović, Nejra, Branković, Goran, Branković, Zorica, "CHITOSAN- AND PECTIN-BASED COATINGS WITH
INCORPORATED ACTIVE COMPONENTS FOR APPLICATION IN
ACTIVE FOOD PACKAGING" in 2nd International Conference on Advanced Production and Processing (ICAPP), Novi Sad, Serbia (2022):115,
https://hdl.handle.net/21.15107/rcub_rimsi_1740 .

TY  - JOUR
AU  - Jovanović, Jelena
AU  - Ćirković, Jovana
AU  - Radojković, Aleksandar
AU  - Mutavdžić, Dragosav
AU  - Tanasijević, Gordana
AU  - Joksimović, Kristina
AU  - Bakic, Gordana
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1422
AB  - This investigation was aimed to develop films and coatings based on natural biopolymers and active components, with physicochemical and functional properties for application in antimicrobial packaging. Biopolymer films were obtained from emulsions and dispersions by casting method. Coatings were formed by the application of emulsions on existing packaging. Synthesis of emulsions and dispersions were performed by combining biopolymers (chitosan-gelatin, pectin-gelatin) with lemongrass essential oil (LEO), Zn(CH3COO)2.2H2O, or ZnO, as active components. Fourier transform infrared (FTIR) spectra of the films showed that the addition of glycerol contributed to the forming of strong hydrogen bonds between glycerol and chitosan-gelatin or pectin-gelatin composites, facilitating the process of polymer branching, which is substantial for encapsulation. Thermal analyses revealed two characteristic processes occurring at 110 degrees C (water evaporation) and within 215-235 degrees C (degradation of polysaccharide and glycerol). Major weight losses were observed at 290 degrees C (chitosan-gelatin films) and 215 degrees C (pectin-gelatin films). The chitosan-gelatin films exhibited a lower degree of solubility (31-21%), and better mechanical properties comparing with the pectin-gelatin films. The chitosan-gelatin emulsions and dispersions exhibited a higher antibacterial effect in vitro against E. coli, B. subtilis, and S. aureus. In the case of the pectin-gelatin emulsions, the impact of LEO on the antibacterial activity was evident. The effects of biopolymer coatings on the development of microorganisms on fresh raspberries (Rubus idaeus L.) were performed in vivo during eight days of raspberry storage at refrigerator temperature. The tested coatings extended the shelf life of stored raspberries from four to eight days. The synergistic effect between LEO and ZnO or Zn-Ac was observed both in vivo and in vitro.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging
VL  - 158
DO  - 10.1016/j.porgcoat.2021.106349
ER  - 

@article{
author = "Jovanović, Jelena and Ćirković, Jovana and Radojković, Aleksandar and Mutavdžić, Dragosav and Tanasijević, Gordana and Joksimović, Kristina and Bakic, Gordana and Branković, Goran and Branković, Zorica",
year = "2021",
abstract = "This investigation was aimed to develop films and coatings based on natural biopolymers and active components, with physicochemical and functional properties for application in antimicrobial packaging. Biopolymer films were obtained from emulsions and dispersions by casting method. Coatings were formed by the application of emulsions on existing packaging. Synthesis of emulsions and dispersions were performed by combining biopolymers (chitosan-gelatin, pectin-gelatin) with lemongrass essential oil (LEO), Zn(CH3COO)2.2H2O, or ZnO, as active components. Fourier transform infrared (FTIR) spectra of the films showed that the addition of glycerol contributed to the forming of strong hydrogen bonds between glycerol and chitosan-gelatin or pectin-gelatin composites, facilitating the process of polymer branching, which is substantial for encapsulation. Thermal analyses revealed two characteristic processes occurring at 110 degrees C (water evaporation) and within 215-235 degrees C (degradation of polysaccharide and glycerol). Major weight losses were observed at 290 degrees C (chitosan-gelatin films) and 215 degrees C (pectin-gelatin films). The chitosan-gelatin films exhibited a lower degree of solubility (31-21%), and better mechanical properties comparing with the pectin-gelatin films. The chitosan-gelatin emulsions and dispersions exhibited a higher antibacterial effect in vitro against E. coli, B. subtilis, and S. aureus. In the case of the pectin-gelatin emulsions, the impact of LEO on the antibacterial activity was evident. The effects of biopolymer coatings on the development of microorganisms on fresh raspberries (Rubus idaeus L.) were performed in vivo during eight days of raspberry storage at refrigerator temperature. The tested coatings extended the shelf life of stored raspberries from four to eight days. The synergistic effect between LEO and ZnO or Zn-Ac was observed both in vivo and in vitro.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging",
volume = "158",
doi = "10.1016/j.porgcoat.2021.106349"
}

Jovanović, J., Ćirković, J., Radojković, A., Mutavdžić, D., Tanasijević, G., Joksimović, K., Bakic, G., Branković, G.,& Branković, Z.. (2021). Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 158.
https://doi.org/10.1016/j.porgcoat.2021.106349

Jovanović J, Ćirković J, Radojković A, Mutavdžić D, Tanasijević G, Joksimović K, Bakic G, Branković G, Branković Z. Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging. in Progress in Organic Coatings. 2021;158.
doi:10.1016/j.porgcoat.2021.106349 .

Jovanović, Jelena, Ćirković, Jovana, Radojković, Aleksandar, Mutavdžić, Dragosav, Tanasijević, Gordana, Joksimović, Kristina, Bakic, Gordana, Branković, Goran, Branković, Zorica, "Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging" in Progress in Organic Coatings, 158 (2021),
https://doi.org/10.1016/j.porgcoat.2021.106349 . .

TY  - PAT
AU  - Branković, Zorica
AU  - Ćirković, Jovana
AU  - Radojković, Aleksandar
AU  - Branković, Goran
AU  - Jovanović, Jelena
AU  - Krnjajić, Slobodan
AU  - Veljović-Jovanović, Sonja
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2720
AB  - The present invention is in the field of aqueous emulsions that dry into water-insoluble or water-resistant structures that
are useful for active packaging, manufactured devices and components, and other applications. The aqueous emulsions of the present invention comprise biopolymers, metal in the form of a salt, nanoparticles or metal oxide nanoparticles, essential oil, and additives such as surfactants and plasticizers. When the components of the emulsion are mixed following the distinctive method of preparation, a water-soluble fluid is obtained, which, upon drying, becomes a water-insoluble or water-resistant solid exhibiting antimicrobial, antioxidative, and other useful properties including tensile strength, elasticity, transparency. The obtained fluid may be applied by spraying, pouring, injecting, 3-D printing, or otherwise formed into a solid product of any geometrical shape including film, foil, or other 3-D shape.
PB  - The World Intellectual Property Organization (WIPO)
T2  - International Patent Application No. PCT/RS2018/000013, International Filling Date: September 14, 2018., Applicants: University of Belgrade, Publication Number: WO 2020/055277 A1, Publication Date: March192020.
T1  - BIOPOLYMER EMULSION FOR ACTIVE PACKAGING, USES AND METHOD OF MANUFACTURING
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2720
ER  - 

@misc{
author = "Branković, Zorica and Ćirković, Jovana and Radojković, Aleksandar and Branković, Goran and Jovanović, Jelena and Krnjajić, Slobodan and Veljović-Jovanović, Sonja",
year = "2020",
abstract = "The present invention is in the field of aqueous emulsions that dry into water-insoluble or water-resistant structures that
are useful for active packaging, manufactured devices and components, and other applications. The aqueous emulsions of the present invention comprise biopolymers, metal in the form of a salt, nanoparticles or metal oxide nanoparticles, essential oil, and additives such as surfactants and plasticizers. When the components of the emulsion are mixed following the distinctive method of preparation, a water-soluble fluid is obtained, which, upon drying, becomes a water-insoluble or water-resistant solid exhibiting antimicrobial, antioxidative, and other useful properties including tensile strength, elasticity, transparency. The obtained fluid may be applied by spraying, pouring, injecting, 3-D printing, or otherwise formed into a solid product of any geometrical shape including film, foil, or other 3-D shape.",
publisher = "The World Intellectual Property Organization (WIPO)",
journal = "International Patent Application No. PCT/RS2018/000013, International Filling Date: September 14, 2018., Applicants: University of Belgrade, Publication Number: WO 2020/055277 A1, Publication Date: March192020.",
title = "BIOPOLYMER EMULSION FOR ACTIVE PACKAGING, USES AND METHOD OF MANUFACTURING",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2720"
}

Branković, Z., Ćirković, J., Radojković, A., Branković, G., Jovanović, J., Krnjajić, S.,& Veljović-Jovanović, S.. (2020). BIOPOLYMER EMULSION FOR ACTIVE PACKAGING, USES AND METHOD OF MANUFACTURING. in International Patent Application No. PCT/RS2018/000013, International Filling Date: September 14, 2018., Applicants: University of Belgrade, Publication Number: WO 2020/055277 A1, Publication Date: March192020.
The World Intellectual Property Organization (WIPO)..
https://hdl.handle.net/21.15107/rcub_rimsi_2720

Branković Z, Ćirković J, Radojković A, Branković G, Jovanović J, Krnjajić S, Veljović-Jovanović S. BIOPOLYMER EMULSION FOR ACTIVE PACKAGING, USES AND METHOD OF MANUFACTURING. in International Patent Application No. PCT/RS2018/000013, International Filling Date: September 14, 2018., Applicants: University of Belgrade, Publication Number: WO 2020/055277 A1, Publication Date: March192020.. 2020;.
https://hdl.handle.net/21.15107/rcub_rimsi_2720 .

Branković, Zorica, Ćirković, Jovana, Radojković, Aleksandar, Branković, Goran, Jovanović, Jelena, Krnjajić, Slobodan, Veljović-Jovanović, Sonja, "BIOPOLYMER EMULSION FOR ACTIVE PACKAGING, USES AND METHOD OF MANUFACTURING" in International Patent Application No. PCT/RS2018/000013, International Filling Date: September 14, 2018., Applicants: University of Belgrade, Publication Number: WO 2020/055277 A1, Publication Date: March192020. (2020),
https://hdl.handle.net/21.15107/rcub_rimsi_2720 .

TY  - JOUR
AU  - Jovanović, Jelena
AU  - Krnjajić, Slobodan
AU  - Ćirković, Jovana
AU  - Radojković, Aleksandar
AU  - Popović, Tatjana
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1353
AB  - The study reported the development of biodegradable, environment- and eco-friendly material based on natural polymers and lemongrass (Cymbopogon citratus L.) essential oil (LEO) for application as a green pesticide. The insecticidal effect of an emulsion composed of encapsulated LEO into a biopolymer matrix against the potato tuber moth (Phthorimaea operculella, Lepidoptera: Gelechiidae) (PTM) was examined and its prolonged effect compared with pure LEO. The lethal effect of the encapsulated LEO against the PTM was prolonged for up to seven days as compared to 48 h for the pure LEO. The slow release rate of the active compound (citral) from the encapsulated and the pure LEO was determined by UV-Vis spectrophotometry. After seven days the citral concentration in the encapsulated LEO was higher (60%) than in the pure LEO after 48 h (52.7%). The results of the slow release of the active compound correlated well with the insecticidal effect of the encapsulated and the pure LEO against the PTM.
PB  - Elsevier Sci Ltd, Oxford
T2  - Crop Protection
T1  - Effect of encapsulated lemongrass (Cymbopogon citratus L.) essential oil against potato tuber moth Phthorimaea operculella
VL  - 132
DO  - 10.1016/j.cropro.2020.105109
ER  - 

@article{
author = "Jovanović, Jelena and Krnjajić, Slobodan and Ćirković, Jovana and Radojković, Aleksandar and Popović, Tatjana and Branković, Goran and Branković, Zorica",
year = "2020",
abstract = "The study reported the development of biodegradable, environment- and eco-friendly material based on natural polymers and lemongrass (Cymbopogon citratus L.) essential oil (LEO) for application as a green pesticide. The insecticidal effect of an emulsion composed of encapsulated LEO into a biopolymer matrix against the potato tuber moth (Phthorimaea operculella, Lepidoptera: Gelechiidae) (PTM) was examined and its prolonged effect compared with pure LEO. The lethal effect of the encapsulated LEO against the PTM was prolonged for up to seven days as compared to 48 h for the pure LEO. The slow release rate of the active compound (citral) from the encapsulated and the pure LEO was determined by UV-Vis spectrophotometry. After seven days the citral concentration in the encapsulated LEO was higher (60%) than in the pure LEO after 48 h (52.7%). The results of the slow release of the active compound correlated well with the insecticidal effect of the encapsulated and the pure LEO against the PTM.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Crop Protection",
title = "Effect of encapsulated lemongrass (Cymbopogon citratus L.) essential oil against potato tuber moth Phthorimaea operculella",
volume = "132",
doi = "10.1016/j.cropro.2020.105109"
}

Jovanović, J., Krnjajić, S., Ćirković, J., Radojković, A., Popović, T., Branković, G.,& Branković, Z.. (2020). Effect of encapsulated lemongrass (Cymbopogon citratus L.) essential oil against potato tuber moth Phthorimaea operculella. in Crop Protection
Elsevier Sci Ltd, Oxford., 132.
https://doi.org/10.1016/j.cropro.2020.105109

Jovanović J, Krnjajić S, Ćirković J, Radojković A, Popović T, Branković G, Branković Z. Effect of encapsulated lemongrass (Cymbopogon citratus L.) essential oil against potato tuber moth Phthorimaea operculella. in Crop Protection. 2020;132.
doi:10.1016/j.cropro.2020.105109 .

Jovanović, Jelena, Krnjajić, Slobodan, Ćirković, Jovana, Radojković, Aleksandar, Popović, Tatjana, Branković, Goran, Branković, Zorica, "Effect of encapsulated lemongrass (Cymbopogon citratus L.) essential oil against potato tuber moth Phthorimaea operculella" in Crop Protection, 132 (2020),
https://doi.org/10.1016/j.cropro.2020.105109 . .

TY  - CONF
AU  - Ćirković, Jovana
AU  - Luković Golić, Danijela
AU  - Radojković, Aleksandar
AU  - Dapčević, Aleksandra
AU  - Tasic, Nikola
AU  - Jovanović, Jelena
AU  - Čizmić, Mirta
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1775
AB  - BiFeO3 (BFO) precursor powder was synthesized by ultrasound asissted sol–gel route at relatively low temperature, starting from Bi-nitrate, Fe-nitrate, and ethylene glycol. Structural, optical, and photocatalytic properties of the obtained powder were investigated. X-ray diffraction analysis confirmed that thermal treatment of precursor powder at 500 °C led to formation of pure phase BiFeO3. BFO is p-type semiconductor where determined band gap was 2.20 eV, indicating its potential application as visible-light-response photocatalyst. Mott-Schottky measurements were performed to determine flat band potential and position of valence and conduction bands. Obtained BFO powder is used for photocatalytic degradation of typical organic azo dye Mordant Blue 9 in concentration of 50 mg/l. Measurements were performed for different times of irradiation and pH of the dye solution. Photodegradation products were analyzied by HPLC technique, and mechanism of photocatalytic degradation of organic dye was proposed.
PB  - Institute for Multidisciplinary Research, University of Belgrade  Kneza Višeslava 1, 11000 Belgrade, Serbia
C3  - The 5th International Conference of the Serbian Society for Ceramic Materials: 5CSCS-2019, Belgrade, Serbia
T1  - Structural, optical and photocatalytic properties of BiFeO3 nanoparticles
SP  - 95
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1775
ER  - 

@conference{
author = "Ćirković, Jovana and Luković Golić, Danijela and Radojković, Aleksandar and Dapčević, Aleksandra and Tasic, Nikola and Jovanović, Jelena and Čizmić, Mirta and Branković, Goran and Branković, Zorica",
year = "2019",
abstract = "BiFeO3 (BFO) precursor powder was synthesized by ultrasound asissted sol–gel route at relatively low temperature, starting from Bi-nitrate, Fe-nitrate, and ethylene glycol. Structural, optical, and photocatalytic properties of the obtained powder were investigated. X-ray diffraction analysis confirmed that thermal treatment of precursor powder at 500 °C led to formation of pure phase BiFeO3. BFO is p-type semiconductor where determined band gap was 2.20 eV, indicating its potential application as visible-light-response photocatalyst. Mott-Schottky measurements were performed to determine flat band potential and position of valence and conduction bands. Obtained BFO powder is used for photocatalytic degradation of typical organic azo dye Mordant Blue 9 in concentration of 50 mg/l. Measurements were performed for different times of irradiation and pH of the dye solution. Photodegradation products were analyzied by HPLC technique, and mechanism of photocatalytic degradation of organic dye was proposed.",
publisher = "Institute for Multidisciplinary Research, University of Belgrade  Kneza Višeslava 1, 11000 Belgrade, Serbia",
journal = "The 5th International Conference of the Serbian Society for Ceramic Materials: 5CSCS-2019, Belgrade, Serbia",
title = "Structural, optical and photocatalytic properties of BiFeO3 nanoparticles",
pages = "95",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1775"
}

Ćirković, J., Luković Golić, D., Radojković, A., Dapčević, A., Tasic, N., Jovanović, J., Čizmić, M., Branković, G.,& Branković, Z.. (2019). Structural, optical and photocatalytic properties of BiFeO3 nanoparticles. in The 5th International Conference of the Serbian Society for Ceramic Materials: 5CSCS-2019, Belgrade, Serbia
Institute for Multidisciplinary Research, University of Belgrade  Kneza Višeslava 1, 11000 Belgrade, Serbia., 95.
https://hdl.handle.net/21.15107/rcub_rimsi_1775

Ćirković J, Luković Golić D, Radojković A, Dapčević A, Tasic N, Jovanović J, Čizmić M, Branković G, Branković Z. Structural, optical and photocatalytic properties of BiFeO3 nanoparticles. in The 5th International Conference of the Serbian Society for Ceramic Materials: 5CSCS-2019, Belgrade, Serbia. 2019;:95.
https://hdl.handle.net/21.15107/rcub_rimsi_1775 .

Ćirković, Jovana, Luković Golić, Danijela, Radojković, Aleksandar, Dapčević, Aleksandra, Tasic, Nikola, Jovanović, Jelena, Čizmić, Mirta, Branković, Goran, Branković, Zorica, "Structural, optical and photocatalytic properties of BiFeO3 nanoparticles" in The 5th International Conference of the Serbian Society for Ceramic Materials: 5CSCS-2019, Belgrade, Serbia (2019):95,
https://hdl.handle.net/21.15107/rcub_rimsi_1775 .

TY  - CONF
AU  - Jovanović, Jelena
AU  - Ćirković, Jovana
AU  - Radojković, Aleksandar
AU  - Tasic, Nikola
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1777
AB  - Biopolymer emulsions were processed in the form of thin films for application in active food packaging. Active packaging is defined as material designed to release active components into food or absorb them from food in order to extend durability or to maintain/improve packaging conditions and extend shelf-life of food. We synthesized emulsion based on biodegradable polymers (pectin, gelatin, chitosan) with addition of active components -essential oils and ZnO nanoparticles (NPs). By introducing essential oils in the polymer matrix, with the addition of certain emulsifiers, it comes to encapsulation of oil droplets and the formation of a homogeneous emulsion. Thin films were fabricated by mold casting or spraying of the emulsions on a substrate. The slow release of an essential oil from the polymeric matrix was determined by UV-vis spectrophotometry. It was shown that polymers with addition of nanoparticles provided a prolonged action of active components. Surface morphology of the films was characterized by atomic force microscopy (AFM), and it was noticed that nanoparticles were mainly accumulated around oil droplets, which additionally contributed to a slow release of the active components.
C3  - The 5th International Conference of the Serbian Society for Ceramic Materials: 5CSCS-2019, Belgrade, Serbia
T1  - Influence of ZnO nanoparticles on slow release of essential oil from polimeric matrix
SP  - 125
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1777
ER  - 

@conference{
author = "Jovanović, Jelena and Ćirković, Jovana and Radojković, Aleksandar and Tasic, Nikola and Branković, Goran and Branković, Zorica",
year = "2019",
abstract = "Biopolymer emulsions were processed in the form of thin films for application in active food packaging. Active packaging is defined as material designed to release active components into food or absorb them from food in order to extend durability or to maintain/improve packaging conditions and extend shelf-life of food. We synthesized emulsion based on biodegradable polymers (pectin, gelatin, chitosan) with addition of active components -essential oils and ZnO nanoparticles (NPs). By introducing essential oils in the polymer matrix, with the addition of certain emulsifiers, it comes to encapsulation of oil droplets and the formation of a homogeneous emulsion. Thin films were fabricated by mold casting or spraying of the emulsions on a substrate. The slow release of an essential oil from the polymeric matrix was determined by UV-vis spectrophotometry. It was shown that polymers with addition of nanoparticles provided a prolonged action of active components. Surface morphology of the films was characterized by atomic force microscopy (AFM), and it was noticed that nanoparticles were mainly accumulated around oil droplets, which additionally contributed to a slow release of the active components.",
journal = "The 5th International Conference of the Serbian Society for Ceramic Materials: 5CSCS-2019, Belgrade, Serbia",
title = "Influence of ZnO nanoparticles on slow release of essential oil from polimeric matrix",
pages = "125",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1777"
}

Jovanović, J., Ćirković, J., Radojković, A., Tasic, N., Branković, G.,& Branković, Z.. (2019). Influence of ZnO nanoparticles on slow release of essential oil from polimeric matrix. in The 5th International Conference of the Serbian Society for Ceramic Materials: 5CSCS-2019, Belgrade, Serbia, 125.
https://hdl.handle.net/21.15107/rcub_rimsi_1777

Jovanović J, Ćirković J, Radojković A, Tasic N, Branković G, Branković Z. Influence of ZnO nanoparticles on slow release of essential oil from polimeric matrix. in The 5th International Conference of the Serbian Society for Ceramic Materials: 5CSCS-2019, Belgrade, Serbia. 2019;:125.
https://hdl.handle.net/21.15107/rcub_rimsi_1777 .

Jovanović, Jelena, Ćirković, Jovana, Radojković, Aleksandar, Tasic, Nikola, Branković, Goran, Branković, Zorica, "Influence of ZnO nanoparticles on slow release of essential oil from polimeric matrix" in The 5th International Conference of the Serbian Society for Ceramic Materials: 5CSCS-2019, Belgrade, Serbia (2019):125,
https://hdl.handle.net/21.15107/rcub_rimsi_1777 .