TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Meseldžija, Slađana
AU  - Davidović, Slađana
AU  - Miljković, Miona
AU  - Onjia, Antonije
AU  - Dimitrijević, Suzana
AU  - Santagata, Gabriella
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11450
AB  - In this study, pectin-based films blended with alginate and crosslinked with copper ions for potential application in agriculture were investigated. Copper was selected as crosslinking agent, due to its key role as a plant micronutrient, antifungal ability, and focal activity in the pectin crosslinking process. FTIR analysis confirmed the interactions between pectin, alginate and copper salt. The inclusion of alginate in film improved the binding activity of copper ions, providing denser 3d network with enhanced physical-chemical properties. The crosslinked film containing 60 wt% of pectin and 40 wt% of alginate had the highest tensile strength (59.8 MPa), highest UV barrier (transmission of light=0%), and the lowest swelling degree (121%) and water vapor permeability (0.320 ng/ m s Pa). Moreover, the release of copper ions from this formulation after 28 days of immersion in water and soil was 9 and 13 ppm, respectively. The biodegradation rate after 28 days of exposure in the soil was 54%. Nevertheless, all crosslinked pectin-alginate films inhibited the growth of the Fusarium and Aspergillus phytopathogens and demonstrated non-phytotoxicity on germination and growth of wheat. Hence, the system developed in this work can potentially be used as novel, bio-active, tunable plant protective biodegradable foliar spray in agriculture sector.
T2  - Industrial Crops and Products
T1  - Characterization of antifungal citrus pectin-based films for potential agricultural application
VL  - 204
SP  - 117386
DO  - 10.1016/j.indcrop.2023.117386
ER  - 

@article{
author = "Nešić, Aleksandra and Meseldžija, Slađana and Davidović, Slađana and Miljković, Miona and Onjia, Antonije and Dimitrijević, Suzana and Santagata, Gabriella",
year = "2023",
abstract = "In this study, pectin-based films blended with alginate and crosslinked with copper ions for potential application in agriculture were investigated. Copper was selected as crosslinking agent, due to its key role as a plant micronutrient, antifungal ability, and focal activity in the pectin crosslinking process. FTIR analysis confirmed the interactions between pectin, alginate and copper salt. The inclusion of alginate in film improved the binding activity of copper ions, providing denser 3d network with enhanced physical-chemical properties. The crosslinked film containing 60 wt% of pectin and 40 wt% of alginate had the highest tensile strength (59.8 MPa), highest UV barrier (transmission of light=0%), and the lowest swelling degree (121%) and water vapor permeability (0.320 ng/ m s Pa). Moreover, the release of copper ions from this formulation after 28 days of immersion in water and soil was 9 and 13 ppm, respectively. The biodegradation rate after 28 days of exposure in the soil was 54%. Nevertheless, all crosslinked pectin-alginate films inhibited the growth of the Fusarium and Aspergillus phytopathogens and demonstrated non-phytotoxicity on germination and growth of wheat. Hence, the system developed in this work can potentially be used as novel, bio-active, tunable plant protective biodegradable foliar spray in agriculture sector.",
journal = "Industrial Crops and Products",
title = "Characterization of antifungal citrus pectin-based films for potential agricultural application",
volume = "204",
pages = "117386",
doi = "10.1016/j.indcrop.2023.117386"
}

Nešić, A., Meseldžija, S., Davidović, S., Miljković, M., Onjia, A., Dimitrijević, S.,& Santagata, G.. (2023). Characterization of antifungal citrus pectin-based films for potential agricultural application. in Industrial Crops and Products, 204, 117386.
https://doi.org/10.1016/j.indcrop.2023.117386

Nešić A, Meseldžija S, Davidović S, Miljković M, Onjia A, Dimitrijević S, Santagata G. Characterization of antifungal citrus pectin-based films for potential agricultural application. in Industrial Crops and Products. 2023;204:117386.
doi:10.1016/j.indcrop.2023.117386 .

Nešić, Aleksandra, Meseldžija, Slađana, Davidović, Slađana, Miljković, Miona, Onjia, Antonije, Dimitrijević, Suzana, Santagata, Gabriella, "Characterization of antifungal citrus pectin-based films for potential agricultural application" in Industrial Crops and Products, 204 (2023):117386,
https://doi.org/10.1016/j.indcrop.2023.117386 . .

TY  - JOUR
AU  - Mašojević, Dijana
AU  - Stamenović, Una
AU  - Otoničar, Mojca
AU  - Davidović, Slađana
AU  - Škapin, Srečo Davor
AU  - Barudžija, Tanja
AU  - Vodnik, Vesna
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10657
AB  - A novel and effective antibacterial agent based on a combination of copper nanoparticles (CuNPs) and polypyrrole (PPy) is presented. By using a straightforward in situ polymerization method in water, a copper/polypyrrole (Cu/PPy) nanocomposite with spherical CuNPs, around 25 nm in diameter, uniformly dispersed throughout a granular PPy matrix, was characterized and subjected to determination of antibacterial activity toward E. coli, and S. aureus. In this survey, the synergistic engagement of various features of CuNPs and PPy against bacteria was somewhat expected. After a 24 h interaction with S. aureus, already 2 ppm of Cu/PPy with only 9.45 wt% content of Cu is acting almost completely cidal, with 99.17 % bacterial growth inhibition, while 10 ppm has a cidal value of 99.99 % at the same time. Safe and environmentally acceptable concentrations of Cu/PPy indicate that it is convenient as an antibacterial agent for wider use.
T2  - Materials Letters
T1  - Evaluation of the antibacterial effectiveness of novel copper/polypyrrole nanocomposite
VL  - 338
SP  - 134051
DO  - 10.1016/j.matlet.2023.134051
ER  - 

@article{
author = "Mašojević, Dijana and Stamenović, Una and Otoničar, Mojca and Davidović, Slađana and Škapin, Srečo Davor and Barudžija, Tanja and Vodnik, Vesna",
year = "2023",
abstract = "A novel and effective antibacterial agent based on a combination of copper nanoparticles (CuNPs) and polypyrrole (PPy) is presented. By using a straightforward in situ polymerization method in water, a copper/polypyrrole (Cu/PPy) nanocomposite with spherical CuNPs, around 25 nm in diameter, uniformly dispersed throughout a granular PPy matrix, was characterized and subjected to determination of antibacterial activity toward E. coli, and S. aureus. In this survey, the synergistic engagement of various features of CuNPs and PPy against bacteria was somewhat expected. After a 24 h interaction with S. aureus, already 2 ppm of Cu/PPy with only 9.45 wt% content of Cu is acting almost completely cidal, with 99.17 % bacterial growth inhibition, while 10 ppm has a cidal value of 99.99 % at the same time. Safe and environmentally acceptable concentrations of Cu/PPy indicate that it is convenient as an antibacterial agent for wider use.",
journal = "Materials Letters",
title = "Evaluation of the antibacterial effectiveness of novel copper/polypyrrole nanocomposite",
volume = "338",
pages = "134051",
doi = "10.1016/j.matlet.2023.134051"
}

Mašojević, D., Stamenović, U., Otoničar, M., Davidović, S., Škapin, S. D., Barudžija, T.,& Vodnik, V.. (2023). Evaluation of the antibacterial effectiveness of novel copper/polypyrrole nanocomposite. in Materials Letters, 338, 134051.
https://doi.org/10.1016/j.matlet.2023.134051

Mašojević D, Stamenović U, Otoničar M, Davidović S, Škapin SD, Barudžija T, Vodnik V. Evaluation of the antibacterial effectiveness of novel copper/polypyrrole nanocomposite. in Materials Letters. 2023;338:134051.
doi:10.1016/j.matlet.2023.134051 .

Mašojević, Dijana, Stamenović, Una, Otoničar, Mojca, Davidović, Slađana, Škapin, Srečo Davor, Barudžija, Tanja, Vodnik, Vesna, "Evaluation of the antibacterial effectiveness of novel copper/polypyrrole nanocomposite" in Materials Letters, 338 (2023):134051,
https://doi.org/10.1016/j.matlet.2023.134051 . .

TY  - CONF
AU  - Mašojević, Dijana
AU  - Vodnik, Vesna
AU  - Spasojević, J.
AU  - Barudžija, Tanja
AU  - Otoničar, Mojca
AU  - Davidović, Slađana
AU  - Stamenović, Una
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12535
AB  - A novel and favorable antibacterial agent as a combination of copper nanoparticles (CuNPs) and polypyrrole (PPy) is presented. By simple in situ polymerization method, copper/polypyrrole (Cu/PPy) nanocomposite with spherical CuNPs, around 25 nm in diameter, uniformly dispersed throughout PPy matrix with granular morphology, was characterized and subjected to determination of antibacterial activity toward bacteria Escherichia coli and Staphylococcus aureus. Knowing that when acting alone, CuNPs and PPy have already shown antimicrobial responce, their mutual and synergetic engagement against bacteria in this survey is somewhat expected. After a twenty-four-hour interaction with S. aureus, already 2 ppm of Cu/PPy with only 9.45 wt% content of Cu is acting almost completely cidal, with 99.17% of bacterial growth inhibition. Such nanocomposite could easily find application in water disinfection, soil sterilization and food preservation.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Book of abstracts
T1  - Antibacterial activity of copper/polypyrrole nanocomposite
SP  - 174
EP  - 174
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12535
ER  - 

@conference{
author = "Mašojević, Dijana and Vodnik, Vesna and Spasojević, J. and Barudžija, Tanja and Otoničar, Mojca and Davidović, Slađana and Stamenović, Una",
year = "2022",
abstract = "A novel and favorable antibacterial agent as a combination of copper nanoparticles (CuNPs) and polypyrrole (PPy) is presented. By simple in situ polymerization method, copper/polypyrrole (Cu/PPy) nanocomposite with spherical CuNPs, around 25 nm in diameter, uniformly dispersed throughout PPy matrix with granular morphology, was characterized and subjected to determination of antibacterial activity toward bacteria Escherichia coli and Staphylococcus aureus. Knowing that when acting alone, CuNPs and PPy have already shown antimicrobial responce, their mutual and synergetic engagement against bacteria in this survey is somewhat expected. After a twenty-four-hour interaction with S. aureus, already 2 ppm of Cu/PPy with only 9.45 wt% content of Cu is acting almost completely cidal, with 99.17% of bacterial growth inhibition. Such nanocomposite could easily find application in water disinfection, soil sterilization and food preservation.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Book of abstracts",
title = "Antibacterial activity of copper/polypyrrole nanocomposite",
pages = "174-174",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12535"
}

Mašojević, D., Vodnik, V., Spasojević, J., Barudžija, T., Otoničar, M., Davidović, S.,& Stamenović, U.. (2022). Antibacterial activity of copper/polypyrrole nanocomposite. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Book of abstracts
Belgrade : Society of Physical Chemists of Serbia., 174-174.
https://hdl.handle.net/21.15107/rcub_vinar_12535

Mašojević D, Vodnik V, Spasojević J, Barudžija T, Otoničar M, Davidović S, Stamenović U. Antibacterial activity of copper/polypyrrole nanocomposite. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Book of abstracts. 2022;:174-174.
https://hdl.handle.net/21.15107/rcub_vinar_12535 .

Mašojević, Dijana, Vodnik, Vesna, Spasojević, J., Barudžija, Tanja, Otoničar, Mojca, Davidović, Slađana, Stamenović, Una, "Antibacterial activity of copper/polypyrrole nanocomposite" in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Book of abstracts (2022):174-174,
https://hdl.handle.net/21.15107/rcub_vinar_12535 .

TY  - CONF
AU  - Mašojević, Dijana
AU  - Vodnik, Vesna
AU  - Spasojević, Jelena
AU  - Barudžija, Tanja
AU  - Otoničar, Mojca
AU  - Davidović, Slađana
AU  - Stamenović, Una
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12536
AB  - A novel and favorable antibacterial agent as a combination of copper nanoparticles (CuNPs) and polypyrrole (PPy) is presented. By simple in situ polymerization method, copper/polypyrrole (Cu/PPy) nanocomposite with spherical CuNPs, around 25 nm in diameter, uniformly dispersed throughout PPy matrix with granular morphology, was characterized and subjected to determination of antibacterial activity toward bacteria Escherichia coli and Staphylococcus aureus. Knowing that when acting alone, CuNPs and PPy have already shown antimicrobial responce, their mutual and synergetic engagement against bacteria in this survey is somewhat expected. After a twenty-fourhour interaction with S. aureus, already 2 ppm of Cu/PPy with only 9.45 wt% content of Cu is acting almost completely cidal, with 99.17% of bacterial growth inhibition. Such nanocomposite could easily find application in water disinfection, soil sterilization and food preservation.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings
T1  - Antibacterial activity of copper/polypyrrole nanocomposite
VL  - 2
SP  - 629
EP  - 632
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12536
ER  - 

@conference{
author = "Mašojević, Dijana and Vodnik, Vesna and Spasojević, Jelena and Barudžija, Tanja and Otoničar, Mojca and Davidović, Slađana and Stamenović, Una",
year = "2022",
abstract = "A novel and favorable antibacterial agent as a combination of copper nanoparticles (CuNPs) and polypyrrole (PPy) is presented. By simple in situ polymerization method, copper/polypyrrole (Cu/PPy) nanocomposite with spherical CuNPs, around 25 nm in diameter, uniformly dispersed throughout PPy matrix with granular morphology, was characterized and subjected to determination of antibacterial activity toward bacteria Escherichia coli and Staphylococcus aureus. Knowing that when acting alone, CuNPs and PPy have already shown antimicrobial responce, their mutual and synergetic engagement against bacteria in this survey is somewhat expected. After a twenty-fourhour interaction with S. aureus, already 2 ppm of Cu/PPy with only 9.45 wt% content of Cu is acting almost completely cidal, with 99.17% of bacterial growth inhibition. Such nanocomposite could easily find application in water disinfection, soil sterilization and food preservation.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings",
title = "Antibacterial activity of copper/polypyrrole nanocomposite",
volume = "2",
pages = "629-632",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12536"
}

Mašojević, D., Vodnik, V., Spasojević, J., Barudžija, T., Otoničar, M., Davidović, S.,& Stamenović, U.. (2022). Antibacterial activity of copper/polypyrrole nanocomposite. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings
Belgrade : Society of Physical Chemists of Serbia., 2, 629-632.
https://hdl.handle.net/21.15107/rcub_vinar_12536

Mašojević D, Vodnik V, Spasojević J, Barudžija T, Otoničar M, Davidović S, Stamenović U. Antibacterial activity of copper/polypyrrole nanocomposite. in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings. 2022;2:629-632.
https://hdl.handle.net/21.15107/rcub_vinar_12536 .

Mašojević, Dijana, Vodnik, Vesna, Spasojević, Jelena, Barudžija, Tanja, Otoničar, Mojca, Davidović, Slađana, Stamenović, Una, "Antibacterial activity of copper/polypyrrole nanocomposite" in PHYSICAL CHEMISTRY 2022 : 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry : Proceedings, 2 (2022):629-632,
https://hdl.handle.net/21.15107/rcub_vinar_12536 .

TY  - JOUR
AU  - Davidović, Slađana
AU  - Miljković, Miona
AU  - Gordić, Milan V.
AU  - Cabrera-Barjas, Gustavo
AU  - Nešić, Aleksandra
AU  - Dimitrijević-Branković, Suzana I.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10068
AB  - The development of edible films and coatings in the food packaging industry presents one of the modern strategies for protecting food products and ensuring their freshness and quality during their shelf lives. The application of microbial polysaccharides to the development of food package materials, as an alternative option to the commonly used plastic materials, is both economic and environmentally favorable. New edible films were developed using dextran from lactic acid bacterium Leuconostoc mesenteroides T3, and additionally plasticized by different concentrations of polyglycerol. The best tensile strength of the films was obtained using a formulation that contained 10 wt% of polyglycerol, which corresponded to a value of 4.6 MPa. The most flexible formulation, with elongation at break of 602%, was obtained with 30 wt% of polyglycerol. Water vapor permeability values of the films synthesized in this study were in the range of (3.45–8.81) ∗ 10−12 g/m s Pa. Such low values indicated that they could be efficient in preventing fruit from drying out during storage. Thus, the film formulations were used to coat blueberries in order to assess their quality during a storage time of 21 days at 8 °C. The results showed that dextran/polyglycerol films could be efficient in extending the shelf life of blueberries, which was evidenced by lower weight loss and total sugar solids values, as well as a delay in titratable acidity, in comparison to the uncoated blueberries.
T2  - Polymers
T1  - Dextran-Based Edible Coatings to Prolong the Shelf Life of Blueberries
VL  - 13
IS  - 23
SP  - 4252
DO  - 10.3390/polym13234252
ER  - 

@article{
author = "Davidović, Slađana and Miljković, Miona and Gordić, Milan V. and Cabrera-Barjas, Gustavo and Nešić, Aleksandra and Dimitrijević-Branković, Suzana I.",
year = "2021",
abstract = "The development of edible films and coatings in the food packaging industry presents one of the modern strategies for protecting food products and ensuring their freshness and quality during their shelf lives. The application of microbial polysaccharides to the development of food package materials, as an alternative option to the commonly used plastic materials, is both economic and environmentally favorable. New edible films were developed using dextran from lactic acid bacterium Leuconostoc mesenteroides T3, and additionally plasticized by different concentrations of polyglycerol. The best tensile strength of the films was obtained using a formulation that contained 10 wt% of polyglycerol, which corresponded to a value of 4.6 MPa. The most flexible formulation, with elongation at break of 602%, was obtained with 30 wt% of polyglycerol. Water vapor permeability values of the films synthesized in this study were in the range of (3.45–8.81) ∗ 10−12 g/m s Pa. Such low values indicated that they could be efficient in preventing fruit from drying out during storage. Thus, the film formulations were used to coat blueberries in order to assess their quality during a storage time of 21 days at 8 °C. The results showed that dextran/polyglycerol films could be efficient in extending the shelf life of blueberries, which was evidenced by lower weight loss and total sugar solids values, as well as a delay in titratable acidity, in comparison to the uncoated blueberries.",
journal = "Polymers",
title = "Dextran-Based Edible Coatings to Prolong the Shelf Life of Blueberries",
volume = "13",
number = "23",
pages = "4252",
doi = "10.3390/polym13234252"
}

Davidović, S., Miljković, M., Gordić, M. V., Cabrera-Barjas, G., Nešić, A.,& Dimitrijević-Branković, S. I.. (2021). Dextran-Based Edible Coatings to Prolong the Shelf Life of Blueberries. in Polymers, 13(23), 4252.
https://doi.org/10.3390/polym13234252

Davidović S, Miljković M, Gordić MV, Cabrera-Barjas G, Nešić A, Dimitrijević-Branković SI. Dextran-Based Edible Coatings to Prolong the Shelf Life of Blueberries. in Polymers. 2021;13(23):4252.
doi:10.3390/polym13234252 .

Davidović, Slađana, Miljković, Miona, Gordić, Milan V., Cabrera-Barjas, Gustavo, Nešić, Aleksandra, Dimitrijević-Branković, Suzana I., "Dextran-Based Edible Coatings to Prolong the Shelf Life of Blueberries" in Polymers, 13, no. 23 (2021):4252,
https://doi.org/10.3390/polym13234252 . .

TY  - JOUR
AU  - Stamenović, Una
AU  - Davidović, Slađana
AU  - Petrović, Sandra
AU  - Leskovac, Andreja
AU  - Stoiljković, Milovan
AU  - Vodnik, Vesna
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9874
AB  - Two silver–polyaniline/polyvinylpyrrolidone (Ag–PANI/PVP) nanocomposites were prepared using in situ integration of silver nanoparticles (AgNPs) during oxidative aniline polymerization, accelerated by the presence of PVP, which as well minimized the risk of particle agglomeration and macroscopic precipitation. Both nanocomposites have similar silver content (∼44 wt% Ag) but different morphological features of AgNPs (spheres/triangles) and polymers (granular/wrinkling pattern). Several spectroscopic, macroscopic, and analytical techniques, microscopy, and surface analysis methods have been used to analyze their physical and chemical properties. Investigation of their antimicrobial potential and possible application as an effective weapon against indicator microbial strains, E. coli, S. aureus, and C. albicans, has shown inhibition of microbial growth by more than 90%, even at low composite concentrations (5 ppm) and short contact time (4 h). A biosafety assessment of Ag–PANI/PVP that comprised testing the genotoxicity and redox modulating activity was performed using human peripheral blood cells as a model system. The obtained results have shown that the investigated Ag–PANI/PVP exhibited significant prooxidant and cytostatic effects (p < 0.05) with no apparent potential to induce DNA damage. Although precautions should be taken to protect human health, the significant antimicrobial efficiency of Ag–PANI/PVP makes it suitable for further studies and applications in non-medical areas, such as wastewater treatment.
T2  - New Journal of Chemistry
T1  - Antimicrobial and biological effects of polyaniline/polyvinylpyrrolidone nanocomposites loaded with silver nanospheres/triangles
VL  - 45
IS  - 28
SP  - 12711
EP  - 12720
DO  - 10.1039/D1NJ02729H
ER  - 

@article{
author = "Stamenović, Una and Davidović, Slađana and Petrović, Sandra and Leskovac, Andreja and Stoiljković, Milovan and Vodnik, Vesna",
year = "2021",
abstract = "Two silver–polyaniline/polyvinylpyrrolidone (Ag–PANI/PVP) nanocomposites were prepared using in situ integration of silver nanoparticles (AgNPs) during oxidative aniline polymerization, accelerated by the presence of PVP, which as well minimized the risk of particle agglomeration and macroscopic precipitation. Both nanocomposites have similar silver content (∼44 wt% Ag) but different morphological features of AgNPs (spheres/triangles) and polymers (granular/wrinkling pattern). Several spectroscopic, macroscopic, and analytical techniques, microscopy, and surface analysis methods have been used to analyze their physical and chemical properties. Investigation of their antimicrobial potential and possible application as an effective weapon against indicator microbial strains, E. coli, S. aureus, and C. albicans, has shown inhibition of microbial growth by more than 90%, even at low composite concentrations (5 ppm) and short contact time (4 h). A biosafety assessment of Ag–PANI/PVP that comprised testing the genotoxicity and redox modulating activity was performed using human peripheral blood cells as a model system. The obtained results have shown that the investigated Ag–PANI/PVP exhibited significant prooxidant and cytostatic effects (p < 0.05) with no apparent potential to induce DNA damage. Although precautions should be taken to protect human health, the significant antimicrobial efficiency of Ag–PANI/PVP makes it suitable for further studies and applications in non-medical areas, such as wastewater treatment.",
journal = "New Journal of Chemistry",
title = "Antimicrobial and biological effects of polyaniline/polyvinylpyrrolidone nanocomposites loaded with silver nanospheres/triangles",
volume = "45",
number = "28",
pages = "12711-12720",
doi = "10.1039/D1NJ02729H"
}

Stamenović, U., Davidović, S., Petrović, S., Leskovac, A., Stoiljković, M.,& Vodnik, V.. (2021). Antimicrobial and biological effects of polyaniline/polyvinylpyrrolidone nanocomposites loaded with silver nanospheres/triangles. in New Journal of Chemistry, 45(28), 12711-12720.
https://doi.org/10.1039/D1NJ02729H

Stamenović U, Davidović S, Petrović S, Leskovac A, Stoiljković M, Vodnik V. Antimicrobial and biological effects of polyaniline/polyvinylpyrrolidone nanocomposites loaded with silver nanospheres/triangles. in New Journal of Chemistry. 2021;45(28):12711-12720.
doi:10.1039/D1NJ02729H .

Stamenović, Una, Davidović, Slađana, Petrović, Sandra, Leskovac, Andreja, Stoiljković, Milovan, Vodnik, Vesna, "Antimicrobial and biological effects of polyaniline/polyvinylpyrrolidone nanocomposites loaded with silver nanospheres/triangles" in New Journal of Chemistry, 45, no. 28 (2021):12711-12720,
https://doi.org/10.1039/D1NJ02729H . .

TY  - JOUR
AU  - Miljković, Miona G.
AU  - Lazić, Vesna M.
AU  - Davidović, Slađana Z.
AU  - Milivojević, Ana
AU  - Papan, Jelena
AU  - Fernandes, Margarida M.
AU  - Lanceros-Mendez, Senentxu
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8902
AB  - The aim of this study was the development of a non-toxic, biosynthetic antimicrobial agent which selectively acts on only one type of microorganism, and preserves the microbiota. Antimicrobial performance of biosynthesized silver nanoparticles (Ag NPs) by horsetail (Equisetum arvense L.) extract was examined against Gram-negative bacteria Escherichia coli and Gram-positive bacteria Staphylococcus aureus, as well as yeasts Candida albicans and Saccharomyces boulardii. Also, the cytotoxicity of Ag NPs was examined toward pre-osteoblast cells. The synthetic conditions—concentration of extract, temperature, and pH—were optimized to prepare silver colloids with different particle size distributions and long-term stability. The obtained samples were characterized using transmission electron microscopy, X-ray diffraction analysis, and absorption spectroscopy. The smaller-sized Ag NPs (~ 10–20 nm), prepared at a lower temperature (20 °C), showed better antimicrobial performance against E. coli compared to larger ones (~ 40–60 nm), prepared at high temperature (100 °C). On the other hand, both samples did not display any toxic action against bacteria S. aureus, or yeasts C. albicans and S. boulardii. Non-cytotoxic behavior of Ag NPs toward pre-osteoblast cells was observed for the concentrations of silver ≤ 2.25 and ≤ 4.5 mg L−1 for 10–20 and 40–60 nm-sized Ag NPs, respectively. Biosynthesized Ag NPs by horsetail extract display selective toxic action against E. coli at the ecologically acceptable concentration level. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.
T2  - Journal of Inorganic and Organometallic Polymers and Materials
T1  - Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli
VL  - 30
IS  - 7
SP  - 2598
EP  - 2607
DO  - 10.1007/s10904-019-01402-x
ER  - 

@article{
author = "Miljković, Miona G. and Lazić, Vesna M. and Davidović, Slađana Z. and Milivojević, Ana and Papan, Jelena and Fernandes, Margarida M. and Lanceros-Mendez, Senentxu and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2020",
abstract = "The aim of this study was the development of a non-toxic, biosynthetic antimicrobial agent which selectively acts on only one type of microorganism, and preserves the microbiota. Antimicrobial performance of biosynthesized silver nanoparticles (Ag NPs) by horsetail (Equisetum arvense L.) extract was examined against Gram-negative bacteria Escherichia coli and Gram-positive bacteria Staphylococcus aureus, as well as yeasts Candida albicans and Saccharomyces boulardii. Also, the cytotoxicity of Ag NPs was examined toward pre-osteoblast cells. The synthetic conditions—concentration of extract, temperature, and pH—were optimized to prepare silver colloids with different particle size distributions and long-term stability. The obtained samples were characterized using transmission electron microscopy, X-ray diffraction analysis, and absorption spectroscopy. The smaller-sized Ag NPs (~ 10–20 nm), prepared at a lower temperature (20 °C), showed better antimicrobial performance against E. coli compared to larger ones (~ 40–60 nm), prepared at high temperature (100 °C). On the other hand, both samples did not display any toxic action against bacteria S. aureus, or yeasts C. albicans and S. boulardii. Non-cytotoxic behavior of Ag NPs toward pre-osteoblast cells was observed for the concentrations of silver ≤ 2.25 and ≤ 4.5 mg L−1 for 10–20 and 40–60 nm-sized Ag NPs, respectively. Biosynthesized Ag NPs by horsetail extract display selective toxic action against E. coli at the ecologically acceptable concentration level. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.",
journal = "Journal of Inorganic and Organometallic Polymers and Materials",
title = "Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli",
volume = "30",
number = "7",
pages = "2598-2607",
doi = "10.1007/s10904-019-01402-x"
}

Miljković, M. G., Lazić, V. M., Davidović, S. Z., Milivojević, A., Papan, J., Fernandes, M. M., Lanceros-Mendez, S., Ahrenkiel, S. P.,& Nedeljković, J.. (2020). Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli. in Journal of Inorganic and Organometallic Polymers and Materials, 30(7), 2598-2607.
https://doi.org/10.1007/s10904-019-01402-x

Miljković MG, Lazić VM, Davidović SZ, Milivojević A, Papan J, Fernandes MM, Lanceros-Mendez S, Ahrenkiel SP, Nedeljković J. Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli. in Journal of Inorganic and Organometallic Polymers and Materials. 2020;30(7):2598-2607.
doi:10.1007/s10904-019-01402-x .

Miljković, Miona G., Lazić, Vesna M., Davidović, Slađana Z., Milivojević, Ana, Papan, Jelena, Fernandes, Margarida M., Lanceros-Mendez, Senentxu, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Selective Antimicrobial Performance of Biosynthesized Silver Nanoparticles by Horsetail Extract Against E. coli" in Journal of Inorganic and Organometallic Polymers and Materials, 30, no. 7 (2020):2598-2607,
https://doi.org/10.1007/s10904-019-01402-x . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Cabrera-Barjas, Gustavo
AU  - Dimitrijević-Branković, Suzana I.
AU  - Davidović, Slađana Z.
AU  - Radovanović, Neda
AU  - Delattre, Cédric
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8800
AB  - The use of polysaccharide-based materials presents an eco-friendly technological solution, by reducing dependence on fossil resources while reducing a product’s carbon footprint, when compared to conventional plastic packaging materials. This review discusses the potential of polysaccharides as a raw material to produce multifunctional materials for food packaging applications. The covered areas include the recent innovations and properties of the polysaccharide-based materials. Emphasis is given to hemicelluloses, marine polysaccharides, and bacterial exopolysaccharides and their potential application in the latest trends of food packaging materials, including edible coatings, intelligent films, and thermo-insulated aerogel packaging.
T2  - Molecules
T1  - Prospect of Polysaccharide-Based Materials as Advanced Food Packaging
VL  - 25
IS  - 1
SP  - 135
DO  - 10.3390/molecules25010135
ER  - 

@article{
author = "Nešić, Aleksandra and Cabrera-Barjas, Gustavo and Dimitrijević-Branković, Suzana I. and Davidović, Slađana Z. and Radovanović, Neda and Delattre, Cédric",
year = "2019",
abstract = "The use of polysaccharide-based materials presents an eco-friendly technological solution, by reducing dependence on fossil resources while reducing a product’s carbon footprint, when compared to conventional plastic packaging materials. This review discusses the potential of polysaccharides as a raw material to produce multifunctional materials for food packaging applications. The covered areas include the recent innovations and properties of the polysaccharide-based materials. Emphasis is given to hemicelluloses, marine polysaccharides, and bacterial exopolysaccharides and their potential application in the latest trends of food packaging materials, including edible coatings, intelligent films, and thermo-insulated aerogel packaging.",
journal = "Molecules",
title = "Prospect of Polysaccharide-Based Materials as Advanced Food Packaging",
volume = "25",
number = "1",
pages = "135",
doi = "10.3390/molecules25010135"
}

Nešić, A., Cabrera-Barjas, G., Dimitrijević-Branković, S. I., Davidović, S. Z., Radovanović, N.,& Delattre, C.. (2019). Prospect of Polysaccharide-Based Materials as Advanced Food Packaging. in Molecules, 25(1), 135.
https://doi.org/10.3390/molecules25010135

Nešić A, Cabrera-Barjas G, Dimitrijević-Branković SI, Davidović SZ, Radovanović N, Delattre C. Prospect of Polysaccharide-Based Materials as Advanced Food Packaging. in Molecules. 2019;25(1):135.
doi:10.3390/molecules25010135 .

Nešić, Aleksandra, Cabrera-Barjas, Gustavo, Dimitrijević-Branković, Suzana I., Davidović, Slađana Z., Radovanović, Neda, Delattre, Cédric, "Prospect of Polysaccharide-Based Materials as Advanced Food Packaging" in Molecules, 25, no. 1 (2019):135,
https://doi.org/10.3390/molecules25010135 . .

TY  - JOUR
AU  - Davidović, Slađana Z.
AU  - Lazić, Vesna M.
AU  - Miljković, Miona G.
AU  - Gordić, Milan V.
AU  - Sekulić, Milica
AU  - Marinović-Cincović, Milena
AU  - Ratnayake, Ishara S.
AU  - Ahrenkiel, Scott Phillip
AU  - Nedeljković, Jovan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8452
AB  - The antibacterial ability of in situ prepared nanometer-sized silver particles, immobilized in agar-agar films, was studied as a function of the concentration of co-dopant, magnesium ions. Content of inorganic components in hybrid films was determined using inductively coupled plasma optic emission spectroscopy, and found to be low (<2 wt.-%). Morphology of prepared hybrid films, studied by transmission electron microscopy, revealed the presence of non-agglomerated and randomly distributed 10–20 nm silver nanoparticles (Ag NPs) within the agar-agar matrices. Fourier-transform infrared spectroscopy indicated the distinct chemical interaction between Ag NPs and polymer chains. Thermogravimetric analysis, as well as the determination of tensile strength, Young's modulus, and elongation at break showed improvement of thermal stability and mechanical properties of agar-agar matrices upon the incorporation of Ag NPs due to high compatibility between the hydrophilic organic component and inorganic components. The complete microbial reduction of Gram-positive bacteria Staphylococcus aureuswas observed for all agar-silver films, while satisfactory results were observed for Gram-negative bacteria Pseudomonas aeruginosa (≥99.6%). The release of Ag+ ions is suppressed by the increase of the concentration of Mg2+ ions and it was found to be significantly smaller (≤0.24 ppm) than the harmful ecological level (1 ppm). © 2019 Elsevier Ltd
T2  - Carbohydrate Polymers
T1  - Antibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ions
VL  - 224
SP  - 115187
DO  - 10.1016/j.carbpol.2019.115187
ER  - 

@article{
author = "Davidović, Slađana Z. and Lazić, Vesna M. and Miljković, Miona G. and Gordić, Milan V. and Sekulić, Milica and Marinović-Cincović, Milena and Ratnayake, Ishara S. and Ahrenkiel, Scott Phillip and Nedeljković, Jovan",
year = "2019",
abstract = "The antibacterial ability of in situ prepared nanometer-sized silver particles, immobilized in agar-agar films, was studied as a function of the concentration of co-dopant, magnesium ions. Content of inorganic components in hybrid films was determined using inductively coupled plasma optic emission spectroscopy, and found to be low (<2 wt.-%). Morphology of prepared hybrid films, studied by transmission electron microscopy, revealed the presence of non-agglomerated and randomly distributed 10–20 nm silver nanoparticles (Ag NPs) within the agar-agar matrices. Fourier-transform infrared spectroscopy indicated the distinct chemical interaction between Ag NPs and polymer chains. Thermogravimetric analysis, as well as the determination of tensile strength, Young's modulus, and elongation at break showed improvement of thermal stability and mechanical properties of agar-agar matrices upon the incorporation of Ag NPs due to high compatibility between the hydrophilic organic component and inorganic components. The complete microbial reduction of Gram-positive bacteria Staphylococcus aureuswas observed for all agar-silver films, while satisfactory results were observed for Gram-negative bacteria Pseudomonas aeruginosa (≥99.6%). The release of Ag+ ions is suppressed by the increase of the concentration of Mg2+ ions and it was found to be significantly smaller (≤0.24 ppm) than the harmful ecological level (1 ppm). © 2019 Elsevier Ltd",
journal = "Carbohydrate Polymers",
title = "Antibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ions",
volume = "224",
pages = "115187",
doi = "10.1016/j.carbpol.2019.115187"
}

Davidović, S. Z., Lazić, V. M., Miljković, M. G., Gordić, M. V., Sekulić, M., Marinović-Cincović, M., Ratnayake, I. S., Ahrenkiel, S. P.,& Nedeljković, J.. (2019). Antibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ions. in Carbohydrate Polymers, 224, 115187.
https://doi.org/10.1016/j.carbpol.2019.115187

Davidović SZ, Lazić VM, Miljković MG, Gordić MV, Sekulić M, Marinović-Cincović M, Ratnayake IS, Ahrenkiel SP, Nedeljković J. Antibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ions. in Carbohydrate Polymers. 2019;224:115187.
doi:10.1016/j.carbpol.2019.115187 .

Davidović, Slađana Z., Lazić, Vesna M., Miljković, Miona G., Gordić, Milan V., Sekulić, Milica, Marinović-Cincović, Milena, Ratnayake, Ishara S., Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Antibacterial ability of immobilized silver nanoparticles in agar-agar films co-doped with magnesium ions" in Carbohydrate Polymers, 224 (2019):115187,
https://doi.org/10.1016/j.carbpol.2019.115187 . .

TY  - CONF
AU  - Miljković, Miona
AU  - Davidović, Slađana
AU  - Radovanović, Neda
AU  - Gordić, Milan V.
AU  - Carević, Milica
AU  - Nešić, Aleksandra
AU  - Dimitrijević, Suzana
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10723
AB  - Dextransucrase (DS), the extracellular enzyme is of immense industrial importance, due to ability to produce dextran and oligosaccharides (OS). Worldwide interest in OS has been increasing, since they have been accorded the prebiotic status. However, the industrial application of DS for OS synthesis is limited, due to low yield of enzyme production and its low catalytic activity. Hence, there is a great interest for development of new technologies that can provide improved performance of biocatalyst. Enzyme immobilization technology is considered to be a crucial step for cheaper and more efficient usage of DS. Entrapment is one of the widely investigated immobilization methods, where enzymes are enclosed or confined within the polymer matrix without altering their native structure, developing bioreactors for commercial applications. Different matrices such as polyacryl-amide gel, alginate beads and agar–agar have been used for the entrapment of different enzymes and among them agar–agar is a biocompatible, non-toxic and strong solidifying agent for immobilization of various enzymes. In this work, the entrapment of DS was initiated by different quantity (1:9, 1:4 and 1:1) of dialyzed enzyme into agar- agar solution. Agar solution was prepared in distilled water by vigorous shaking at 100°C, autoclaved and was allowed to cool to 40–45°C. Afterwards, enzyme was incorporated and mixed thoroughly. This mixture was immediately poured into a clean Petri plate and left to solidify at room temperature. Polymer films with and without immobilized DS were analyzed in terms of enzyme activity and reusability and mechanical properties (tensile strength, elongation at break and elastic modulus). In order to remove un-entrapped enzyme the films were washed with double deionized water and sodium acetate buffer (pH 5.4) three times prior to enzymatic assay. For quantitative analysis of samples for OS production a Dionex Ultimate 3000 HPLC system was used. Results showed that maximum immobilization yield (74.11%) was achieved by use of 2 % agar and (1:9) enzyme: agar ratio. HPLC analysis confirmed the similar trend of OS formation in immobilized samples compared to free enzyme. The lowest tested fraction of enzyme immobilized into polymer matrix (1:9) improved tensile strength of films in comparison with control film, whereas higher concentration of enzyme led to decrease in mechanical resistance of films. Scanning electron microscopy of agar films before and after DS entrapment revealed significant morphological change on the matrix surface. Considering the economic feasibility, the entrapped DS indicated imperative recycling efficiency up to six reaction cycles. The results of this study revealed that an easily available and inexpensive matrix could be successfully employed for DS immobilization and OS production.
C3  - PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia
T1  - Dextransucrase entrapment as an efficient alternative for increased recycling efficiency of free enzyme within agar-agar film matrix
SP  - 88
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10723
ER  - 

@conference{
author = "Miljković, Miona and Davidović, Slađana and Radovanović, Neda and Gordić, Milan V. and Carević, Milica and Nešić, Aleksandra and Dimitrijević, Suzana",
year = "2018",
abstract = "Dextransucrase (DS), the extracellular enzyme is of immense industrial importance, due to ability to produce dextran and oligosaccharides (OS). Worldwide interest in OS has been increasing, since they have been accorded the prebiotic status. However, the industrial application of DS for OS synthesis is limited, due to low yield of enzyme production and its low catalytic activity. Hence, there is a great interest for development of new technologies that can provide improved performance of biocatalyst. Enzyme immobilization technology is considered to be a crucial step for cheaper and more efficient usage of DS. Entrapment is one of the widely investigated immobilization methods, where enzymes are enclosed or confined within the polymer matrix without altering their native structure, developing bioreactors for commercial applications. Different matrices such as polyacryl-amide gel, alginate beads and agar–agar have been used for the entrapment of different enzymes and among them agar–agar is a biocompatible, non-toxic and strong solidifying agent for immobilization of various enzymes. In this work, the entrapment of DS was initiated by different quantity (1:9, 1:4 and 1:1) of dialyzed enzyme into agar- agar solution. Agar solution was prepared in distilled water by vigorous shaking at 100°C, autoclaved and was allowed to cool to 40–45°C. Afterwards, enzyme was incorporated and mixed thoroughly. This mixture was immediately poured into a clean Petri plate and left to solidify at room temperature. Polymer films with and without immobilized DS were analyzed in terms of enzyme activity and reusability and mechanical properties (tensile strength, elongation at break and elastic modulus). In order to remove un-entrapped enzyme the films were washed with double deionized water and sodium acetate buffer (pH 5.4) three times prior to enzymatic assay. For quantitative analysis of samples for OS production a Dionex Ultimate 3000 HPLC system was used. Results showed that maximum immobilization yield (74.11%) was achieved by use of 2 % agar and (1:9) enzyme: agar ratio. HPLC analysis confirmed the similar trend of OS formation in immobilized samples compared to free enzyme. The lowest tested fraction of enzyme immobilized into polymer matrix (1:9) improved tensile strength of films in comparison with control film, whereas higher concentration of enzyme led to decrease in mechanical resistance of films. Scanning electron microscopy of agar films before and after DS entrapment revealed significant morphological change on the matrix surface. Considering the economic feasibility, the entrapped DS indicated imperative recycling efficiency up to six reaction cycles. The results of this study revealed that an easily available and inexpensive matrix could be successfully employed for DS immobilization and OS production.",
journal = "PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia",
title = "Dextransucrase entrapment as an efficient alternative for increased recycling efficiency of free enzyme within agar-agar film matrix",
pages = "88",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10723"
}

Miljković, M., Davidović, S., Radovanović, N., Gordić, M. V., Carević, M., Nešić, A.,& Dimitrijević, S.. (2018). Dextransucrase entrapment as an efficient alternative for increased recycling efficiency of free enzyme within agar-agar film matrix. in PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia, 88.
https://hdl.handle.net/21.15107/rcub_vinar_10723

Miljković M, Davidović S, Radovanović N, Gordić MV, Carević M, Nešić A, Dimitrijević S. Dextransucrase entrapment as an efficient alternative for increased recycling efficiency of free enzyme within agar-agar film matrix. in PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia. 2018;:88.
https://hdl.handle.net/21.15107/rcub_vinar_10723 .

Miljković, Miona, Davidović, Slađana, Radovanović, Neda, Gordić, Milan V., Carević, Milica, Nešić, Aleksandra, Dimitrijević, Suzana, "Dextransucrase entrapment as an efficient alternative for increased recycling efficiency of free enzyme within agar-agar film matrix" in PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia (2018):88,
https://hdl.handle.net/21.15107/rcub_vinar_10723 .

TY  - JOUR
AU  - Miljković, Miona G.
AU  - Lazić, Vesna M.
AU  - Banjanac, Katarina
AU  - Davidović, Slađana Z.
AU  - Bezbradica, Dejan I.
AU  - Marinković, Aleksandar D.
AU  - Sredojević, Dušan
AU  - Nedeljković, Jovan
AU  - Dimitrijević-Branković, Suzana I.
PY  - 2018
UR  - http://linkinghub.elsevier.com/retrieve/pii/S0141813018302952
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7776
AB  - The TiO2 based hybrid supports with different functional groups (amino, glutaraldehyde or epoxy) were prepared and their influence on immobilization of dextransucrase (DS) was studied. Novel synthetic route for surface modification of TiO2 with amino and glutaraldehyde groups was developed taking advantage of charge transfer complex (CTC) formation between surface Ti atoms and salicylate-type of ligand (5 aminosalicylic acid (5-ASA)). The proposed coordination of 5-ASA to the surface of TiO2 powder and optical properties of CTC was presented. The pristine TiO2 and amino functionalized TiO2 have higher sorption capacity for DS (12.6 and 12.0 mg g(-1), respectively) compared to glutaraldehyde and epoxy activated supports (9.6 and 9.8 mg g(-1) respectively). However, immobilized enzyme to either glutaraldehyde or epoxy functionalized TiO2 have almost two times higher expressed activities compared to pristine TiO2 support (258, 235 and 142 IU g(-1), respectively). Thermal stability of enzyme immobilized on glutaraldehyde and epoxy functionalized supports was studied at 40 degrees C, as well as operational stability under long-run working conditions in repeated cycles. After five cycles, DS imobilized on glutaraldehyde activated support retained almost 70% of its initial expressed activity, while, after five cycles, performance of DS immobilized on epoxy activated support was significantly lower (15%).
T2  - International Journal of Biological Macromolecules
T1  - Immobilization of dextransucrase on functionalized TiO2 supports
VL  - 114
SP  - 1216
EP  - 1223
DO  - 10.1016/j.ijbiomac.2018.04.027
ER  - 

@article{
author = "Miljković, Miona G. and Lazić, Vesna M. and Banjanac, Katarina and Davidović, Slađana Z. and Bezbradica, Dejan I. and Marinković, Aleksandar D. and Sredojević, Dušan and Nedeljković, Jovan and Dimitrijević-Branković, Suzana I.",
year = "2018",
abstract = "The TiO2 based hybrid supports with different functional groups (amino, glutaraldehyde or epoxy) were prepared and their influence on immobilization of dextransucrase (DS) was studied. Novel synthetic route for surface modification of TiO2 with amino and glutaraldehyde groups was developed taking advantage of charge transfer complex (CTC) formation between surface Ti atoms and salicylate-type of ligand (5 aminosalicylic acid (5-ASA)). The proposed coordination of 5-ASA to the surface of TiO2 powder and optical properties of CTC was presented. The pristine TiO2 and amino functionalized TiO2 have higher sorption capacity for DS (12.6 and 12.0 mg g(-1), respectively) compared to glutaraldehyde and epoxy activated supports (9.6 and 9.8 mg g(-1) respectively). However, immobilized enzyme to either glutaraldehyde or epoxy functionalized TiO2 have almost two times higher expressed activities compared to pristine TiO2 support (258, 235 and 142 IU g(-1), respectively). Thermal stability of enzyme immobilized on glutaraldehyde and epoxy functionalized supports was studied at 40 degrees C, as well as operational stability under long-run working conditions in repeated cycles. After five cycles, DS imobilized on glutaraldehyde activated support retained almost 70% of its initial expressed activity, while, after five cycles, performance of DS immobilized on epoxy activated support was significantly lower (15%).",
journal = "International Journal of Biological Macromolecules",
title = "Immobilization of dextransucrase on functionalized TiO2 supports",
volume = "114",
pages = "1216-1223",
doi = "10.1016/j.ijbiomac.2018.04.027"
}

Miljković, M. G., Lazić, V. M., Banjanac, K., Davidović, S. Z., Bezbradica, D. I., Marinković, A. D., Sredojević, D., Nedeljković, J.,& Dimitrijević-Branković, S. I.. (2018). Immobilization of dextransucrase on functionalized TiO2 supports. in International Journal of Biological Macromolecules, 114, 1216-1223.
https://doi.org/10.1016/j.ijbiomac.2018.04.027

Miljković MG, Lazić VM, Banjanac K, Davidović SZ, Bezbradica DI, Marinković AD, Sredojević D, Nedeljković J, Dimitrijević-Branković SI. Immobilization of dextransucrase on functionalized TiO2 supports. in International Journal of Biological Macromolecules. 2018;114:1216-1223.
doi:10.1016/j.ijbiomac.2018.04.027 .

Miljković, Miona G., Lazić, Vesna M., Banjanac, Katarina, Davidović, Slađana Z., Bezbradica, Dejan I., Marinković, Aleksandar D., Sredojević, Dušan, Nedeljković, Jovan, Dimitrijević-Branković, Suzana I., "Immobilization of dextransucrase on functionalized TiO2 supports" in International Journal of Biological Macromolecules, 114 (2018):1216-1223,
https://doi.org/10.1016/j.ijbiomac.2018.04.027 . .

TY  - CONF
AU  - Radovanović, Neda
AU  - Miljković, Miona
AU  - Davidović, Slađana
AU  - Malagurski, Ivana
AU  - Gordić, Milan V.
AU  - Nešić, Aleksandra
AU  - Dimitrijević-Branković, Suzana I.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10724
AB  - Polysaccharide-based materials represent an attractive alternative to plastics, due to their biodegradability, compatibility and great film forming properties1. As they are usually characterized by poor mechanical and barrier properties and lack of functionality, different components must be incorporated into these biopolymer materials in order to improve their properties. In this study, new mineralized, agar-based composite films with increasing Cu-phosphate mineral phase loadings (1, 2.5 and 5 mM) were prepared by in situ mineralization and solvent casting method. The presence of mineral significantly influenced the morphology, properties and fun- ctionality of the obtained composite films. Reinforcement with the Cu-phosphate phase improved in a concentration-dependent manner, optical, mechanical and water vapor barrier properties of the obtained mine- ralized films. In addition Cu-phosphate mineralized agar films exhibited antimicrobial activity against both, Gram positive and Gram negative bacteria, Staphylococcus aureus and Escherichia coli, respectively. The res- ults of this study suggest that agar films mineralized with Cu-phosphate could be potentially used as affordable, eco-friendly and functional food packaging materials with tunable properties. Production procedure offers possibilities for increasing Cu-mineral phase content without compromising properties of the composite films.
C3  - PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia
T1  - Active agar mineralized composite films intended for food packaging
SP  - 94
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10724
ER  - 

@conference{
author = "Radovanović, Neda and Miljković, Miona and Davidović, Slađana and Malagurski, Ivana and Gordić, Milan V. and Nešić, Aleksandra and Dimitrijević-Branković, Suzana I.",
year = "2018",
abstract = "Polysaccharide-based materials represent an attractive alternative to plastics, due to their biodegradability, compatibility and great film forming properties1. As they are usually characterized by poor mechanical and barrier properties and lack of functionality, different components must be incorporated into these biopolymer materials in order to improve their properties. In this study, new mineralized, agar-based composite films with increasing Cu-phosphate mineral phase loadings (1, 2.5 and 5 mM) were prepared by in situ mineralization and solvent casting method. The presence of mineral significantly influenced the morphology, properties and fun- ctionality of the obtained composite films. Reinforcement with the Cu-phosphate phase improved in a concentration-dependent manner, optical, mechanical and water vapor barrier properties of the obtained mine- ralized films. In addition Cu-phosphate mineralized agar films exhibited antimicrobial activity against both, Gram positive and Gram negative bacteria, Staphylococcus aureus and Escherichia coli, respectively. The res- ults of this study suggest that agar films mineralized with Cu-phosphate could be potentially used as affordable, eco-friendly and functional food packaging materials with tunable properties. Production procedure offers possibilities for increasing Cu-mineral phase content without compromising properties of the composite films.",
journal = "PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia",
title = "Active agar mineralized composite films intended for food packaging",
pages = "94",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10724"
}

Radovanović, N., Miljković, M., Davidović, S., Malagurski, I., Gordić, M. V., Nešić, A.,& Dimitrijević-Branković, S. I.. (2018). Active agar mineralized composite films intended for food packaging. in PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia, 94.
https://hdl.handle.net/21.15107/rcub_vinar_10724

Radovanović N, Miljković M, Davidović S, Malagurski I, Gordić MV, Nešić A, Dimitrijević-Branković SI. Active agar mineralized composite films intended for food packaging. in PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia. 2018;:94.
https://hdl.handle.net/21.15107/rcub_vinar_10724 .

Radovanović, Neda, Miljković, Miona, Davidović, Slađana, Malagurski, Ivana, Gordić, Milan V., Nešić, Aleksandra, Dimitrijević-Branković, Suzana I., "Active agar mineralized composite films intended for food packaging" in PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia (2018):94,
https://hdl.handle.net/21.15107/rcub_vinar_10724 .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Gordić, Milan V.
AU  - Davidović, Slađana Z.
AU  - Radovanović, Željko
AU  - Nedeljković, Jovan
AU  - Smirnova, Irina
AU  - Gurikov, Pavel
PY  - 2018
UR  - http://linkinghub.elsevier.com/retrieve/pii/S0144861718304703
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7674
AB  - Environmental-friendly pectin-TiO2nanocomposite aerogels were prepared via sol-gel process and subsequent drying under supercritical conditions. The first step includes dissolution of pectin in water, addition of proper amount of TiO2colloid and crosslinking reaction induced in the presence of tert-butanol and zinc ions. Then, the gels are subjected to the solvent exchange and supercritical CO2drying. The influence of TiO2nanoparticles on the textural, mechanical, thermal and antibacterial properties of aerogels was investigated. Results indicate that in the presence of TiO2nanoparticles (NPs) mechanical, thermal and antimicrobial properties of pectin-based aerogels are improved in comparison to the control pectin aerogels. It should be emphasized that the thermal conductivity of pectin-based aerogels (0.022–0.025 W m−1K−1) is lower than the thermal conductivity of air. Generally, the results propose that the pectin-TiO2nanocomposite aerogels, as bio-based material, might have potential application for the storage of temperature-sensitive food.
T2  - Carbohydrate Polymers
T1  - Pectin-based nanocomposite aerogels for potential insulated food packaging application
VL  - 195
SP  - 128
EP  - 135
DO  - 10.1016/j.carbpol.2018.04.076
ER  - 

@article{
author = "Nešić, Aleksandra and Gordić, Milan V. and Davidović, Slađana Z. and Radovanović, Željko and Nedeljković, Jovan and Smirnova, Irina and Gurikov, Pavel",
year = "2018",
abstract = "Environmental-friendly pectin-TiO2nanocomposite aerogels were prepared via sol-gel process and subsequent drying under supercritical conditions. The first step includes dissolution of pectin in water, addition of proper amount of TiO2colloid and crosslinking reaction induced in the presence of tert-butanol and zinc ions. Then, the gels are subjected to the solvent exchange and supercritical CO2drying. The influence of TiO2nanoparticles on the textural, mechanical, thermal and antibacterial properties of aerogels was investigated. Results indicate that in the presence of TiO2nanoparticles (NPs) mechanical, thermal and antimicrobial properties of pectin-based aerogels are improved in comparison to the control pectin aerogels. It should be emphasized that the thermal conductivity of pectin-based aerogels (0.022–0.025 W m−1K−1) is lower than the thermal conductivity of air. Generally, the results propose that the pectin-TiO2nanocomposite aerogels, as bio-based material, might have potential application for the storage of temperature-sensitive food.",
journal = "Carbohydrate Polymers",
title = "Pectin-based nanocomposite aerogels for potential insulated food packaging application",
volume = "195",
pages = "128-135",
doi = "10.1016/j.carbpol.2018.04.076"
}

Nešić, A., Gordić, M. V., Davidović, S. Z., Radovanović, Ž., Nedeljković, J., Smirnova, I.,& Gurikov, P.. (2018). Pectin-based nanocomposite aerogels for potential insulated food packaging application. in Carbohydrate Polymers, 195, 128-135.
https://doi.org/10.1016/j.carbpol.2018.04.076

Nešić A, Gordić MV, Davidović SZ, Radovanović Ž, Nedeljković J, Smirnova I, Gurikov P. Pectin-based nanocomposite aerogels for potential insulated food packaging application. in Carbohydrate Polymers. 2018;195:128-135.
doi:10.1016/j.carbpol.2018.04.076 .

Nešić, Aleksandra, Gordić, Milan V., Davidović, Slađana Z., Radovanović, Željko, Nedeljković, Jovan, Smirnova, Irina, Gurikov, Pavel, "Pectin-based nanocomposite aerogels for potential insulated food packaging application" in Carbohydrate Polymers, 195 (2018):128-135,
https://doi.org/10.1016/j.carbpol.2018.04.076 . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Gordić, Milan V.
AU  - Davidović, Slađana Z.
AU  - Radovanović, Željko
AU  - Nedeljković, Jovan
AU  - Smirnova, Irina
AU  - Gurikov, Pavel
PY  - 2018
UR  - http://linkinghub.elsevier.com/retrieve/pii/S0144861718304703
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7743
AB  - Environmental-friendly pectin-TiO2 nanocomposite aerogels were prepared via sol-gel process and subsequent drying under supercritical conditions. The first step includes dissolution of pectin in water, addition of proper amount of TiO2 colloid and crosslinking reaction induced in the presence of tert-butanol and zinc ions. Then, the gels are subjected to the solvent exchange and supercritical CO2 drying. The influence of TiO2 nanoparticles on the textural, mechanical, thermal and antibacterial properties of aerogels was investigated. Results indicate that in the presence of TiO2 nanoparticles (NPs) mechanical, thermal and antimicrobial properties of pectin-based aerogels are improved in comparison to the control pectin aerogels. It should be emphasized that the thermal conductivity of pectin-based aerogels (0.022-0.025Wm(-1) K-1) is lower than the thermal conductivity of air. Generally, the results propose that the pectin-TiO2 nanocomposite aerogels, as bio-based material, might have potential application for the storage of temperature-sensitive food.
T2  - Carbohydrate Polymers
T1  - Pectin-based nanocomposite aerogels for potential insulated food packaging application
VL  - 195
SP  - 128
EP  - 135
DO  - 10.1016/j.carbpol.2018.04.076
ER  - 

@article{
author = "Nešić, Aleksandra and Gordić, Milan V. and Davidović, Slađana Z. and Radovanović, Željko and Nedeljković, Jovan and Smirnova, Irina and Gurikov, Pavel",
year = "2018",
abstract = "Environmental-friendly pectin-TiO2 nanocomposite aerogels were prepared via sol-gel process and subsequent drying under supercritical conditions. The first step includes dissolution of pectin in water, addition of proper amount of TiO2 colloid and crosslinking reaction induced in the presence of tert-butanol and zinc ions. Then, the gels are subjected to the solvent exchange and supercritical CO2 drying. The influence of TiO2 nanoparticles on the textural, mechanical, thermal and antibacterial properties of aerogels was investigated. Results indicate that in the presence of TiO2 nanoparticles (NPs) mechanical, thermal and antimicrobial properties of pectin-based aerogels are improved in comparison to the control pectin aerogels. It should be emphasized that the thermal conductivity of pectin-based aerogels (0.022-0.025Wm(-1) K-1) is lower than the thermal conductivity of air. Generally, the results propose that the pectin-TiO2 nanocomposite aerogels, as bio-based material, might have potential application for the storage of temperature-sensitive food.",
journal = "Carbohydrate Polymers",
title = "Pectin-based nanocomposite aerogels for potential insulated food packaging application",
volume = "195",
pages = "128-135",
doi = "10.1016/j.carbpol.2018.04.076"
}

Nešić, A., Gordić, M. V., Davidović, S. Z., Radovanović, Ž., Nedeljković, J., Smirnova, I.,& Gurikov, P.. (2018). Pectin-based nanocomposite aerogels for potential insulated food packaging application. in Carbohydrate Polymers, 195, 128-135.
https://doi.org/10.1016/j.carbpol.2018.04.076

Nešić A, Gordić MV, Davidović SZ, Radovanović Ž, Nedeljković J, Smirnova I, Gurikov P. Pectin-based nanocomposite aerogels for potential insulated food packaging application. in Carbohydrate Polymers. 2018;195:128-135.
doi:10.1016/j.carbpol.2018.04.076 .

Nešić, Aleksandra, Gordić, Milan V., Davidović, Slađana Z., Radovanović, Željko, Nedeljković, Jovan, Smirnova, Irina, Gurikov, Pavel, "Pectin-based nanocomposite aerogels for potential insulated food packaging application" in Carbohydrate Polymers, 195 (2018):128-135,
https://doi.org/10.1016/j.carbpol.2018.04.076 . .

TY  - JOUR
AU  - Davidović, Slađana Z.
AU  - Miljković, Miona G.
AU  - Tomić, Miloš
AU  - Gordić, Milan V.
AU  - Nešić, Aleksandra
AU  - Dimitrijević, Suzana I.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1932
AB  - The aim of this study was to develop dextran-based edible films plasticized by sorbitol. In order to optimise the film-forming formulation, response surface methodology was used. The influence of dextran and sorbitol concentration on the mechanical and water vapour barrier properties of obtained films was investigated. The results showed that both parameters exhibited significant effect on the water vapour permeability of a film. Both dextran and sorbitol concentration had significant influence on tensile strength and elongation at break, whereas only sorbitol concentration had significant effect on Youngs modulus. After optimisation by desirability approach, it was found that a film made of 3.40 wt% of dextran and 20.43 wt% of sorbitol showed the lowest water vapour permeability and the highest tensile strength and elasticity.
T2  - Carbohydrate Polymers
T1  - Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3
VL  - 184
SP  - 207
EP  - 213
DO  - 10.1016/j.carbpol.2017.12.061
ER  - 

@article{
author = "Davidović, Slađana Z. and Miljković, Miona G. and Tomić, Miloš and Gordić, Milan V. and Nešić, Aleksandra and Dimitrijević, Suzana I.",
year = "2018",
abstract = "The aim of this study was to develop dextran-based edible films plasticized by sorbitol. In order to optimise the film-forming formulation, response surface methodology was used. The influence of dextran and sorbitol concentration on the mechanical and water vapour barrier properties of obtained films was investigated. The results showed that both parameters exhibited significant effect on the water vapour permeability of a film. Both dextran and sorbitol concentration had significant influence on tensile strength and elongation at break, whereas only sorbitol concentration had significant effect on Youngs modulus. After optimisation by desirability approach, it was found that a film made of 3.40 wt% of dextran and 20.43 wt% of sorbitol showed the lowest water vapour permeability and the highest tensile strength and elasticity.",
journal = "Carbohydrate Polymers",
title = "Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3",
volume = "184",
pages = "207-213",
doi = "10.1016/j.carbpol.2017.12.061"
}

Davidović, S. Z., Miljković, M. G., Tomić, M., Gordić, M. V., Nešić, A.,& Dimitrijević, S. I.. (2018). Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3. in Carbohydrate Polymers, 184, 207-213.
https://doi.org/10.1016/j.carbpol.2017.12.061

Davidović SZ, Miljković MG, Tomić M, Gordić MV, Nešić A, Dimitrijević SI. Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3. in Carbohydrate Polymers. 2018;184:207-213.
doi:10.1016/j.carbpol.2017.12.061 .

Davidović, Slađana Z., Miljković, Miona G., Tomić, Miloš, Gordić, Milan V., Nešić, Aleksandra, Dimitrijević, Suzana I., "Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3" in Carbohydrate Polymers, 184 (2018):207-213,
https://doi.org/10.1016/j.carbpol.2017.12.061 . .

TY  - CONF
AU  - Davidović, Slađana
AU  - Miljković, Miona
AU  - Radovanović, Neda
AU  - Gordić, Milan V.
AU  - Nešić, Aleksandra
AU  - Dimitrijević, Suzana
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10722
AB  - Current trends in food biotechnology are focused on replacing synthetic polymers used for food packages by the natural ones. Biopolymers are made by sustainable processes in a cheap way. Moreover, they are nontoxic and can serve as a good alternative to traditional (petroleum) food packaging, due to great film-formation properties in a form of edible films and coatings for food products. Various polysaccharides, proteins, and lipids have been intensively investigated as edible materials that could improve the food quality, freshness, and provide food safety. However, natural polymers usually lack of antioxidative and/or antimicrobial properties. Therefore, many synthetic and natural additives can be incorporated into edible films. Among them, extracts of medicinal plants are giving more attention due to their safeness and proved health benefits. The aim of this study was to obtain edible films based on dextran, with antioxidative and antimicrobial pro- perties. Dextran obtained in our lab was used for preparing edible film with sorbitol as a plasticizer, while pulverized waste biomass obtained from the processing of medicinal herb yarrow (Achillea millefolium) was used as a source of polyphenols. It has previously been shown 1 that dextran-based films had excellent mecha- nical and water vapor barrier properties. In this work, spray dried ethanol extract of Achillea millefolium dust (AME) was incorporated into dextran films in concentrations 2, 3, and 4% (w/v). The composite films were analyzed regarding antioxidative, antimicrobial, and mechanical properties. All films showed high antioxidative activity (90% reduction of DPPH radical). However, to obtain high antimicrobial activity (higher than 50%), 4% of AME was required. Composite films showed antimicrobial activity against three Gram-positive bacteria (Staphylococcus aureus, Listeria monocytogenes and Enterococcus faecalis and one Gram-negative bacterium (Pseudomonas aeruginosa). Incorporation of AME into dextran film showed positive effect on tensile strength and negative effect on elongation. Composite film with the best mechanical properties (tensile strength 3.5 MPa and elongation at break 37%) was the film containing 4% AME.
C3  - PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia
T1  - Antioxidant and antimicrobial edible films based on dextran containing polyphenols from yarrow extract
SP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10722
ER  - 

@conference{
author = "Davidović, Slađana and Miljković, Miona and Radovanović, Neda and Gordić, Milan V. and Nešić, Aleksandra and Dimitrijević, Suzana",
year = "2018",
abstract = "Current trends in food biotechnology are focused on replacing synthetic polymers used for food packages by the natural ones. Biopolymers are made by sustainable processes in a cheap way. Moreover, they are nontoxic and can serve as a good alternative to traditional (petroleum) food packaging, due to great film-formation properties in a form of edible films and coatings for food products. Various polysaccharides, proteins, and lipids have been intensively investigated as edible materials that could improve the food quality, freshness, and provide food safety. However, natural polymers usually lack of antioxidative and/or antimicrobial properties. Therefore, many synthetic and natural additives can be incorporated into edible films. Among them, extracts of medicinal plants are giving more attention due to their safeness and proved health benefits. The aim of this study was to obtain edible films based on dextran, with antioxidative and antimicrobial pro- perties. Dextran obtained in our lab was used for preparing edible film with sorbitol as a plasticizer, while pulverized waste biomass obtained from the processing of medicinal herb yarrow (Achillea millefolium) was used as a source of polyphenols. It has previously been shown 1 that dextran-based films had excellent mecha- nical and water vapor barrier properties. In this work, spray dried ethanol extract of Achillea millefolium dust (AME) was incorporated into dextran films in concentrations 2, 3, and 4% (w/v). The composite films were analyzed regarding antioxidative, antimicrobial, and mechanical properties. All films showed high antioxidative activity (90% reduction of DPPH radical). However, to obtain high antimicrobial activity (higher than 50%), 4% of AME was required. Composite films showed antimicrobial activity against three Gram-positive bacteria (Staphylococcus aureus, Listeria monocytogenes and Enterococcus faecalis and one Gram-negative bacterium (Pseudomonas aeruginosa). Incorporation of AME into dextran film showed positive effect on tensile strength and negative effect on elongation. Composite film with the best mechanical properties (tensile strength 3.5 MPa and elongation at break 37%) was the film containing 4% AME.",
journal = "PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia",
title = "Antioxidant and antimicrobial edible films based on dextran containing polyphenols from yarrow extract",
pages = "72",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10722"
}

Davidović, S., Miljković, M., Radovanović, N., Gordić, M. V., Nešić, A.,& Dimitrijević, S.. (2018). Antioxidant and antimicrobial edible films based on dextran containing polyphenols from yarrow extract. in PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia, 72.
https://hdl.handle.net/21.15107/rcub_vinar_10722

Davidović S, Miljković M, Radovanović N, Gordić MV, Nešić A, Dimitrijević S. Antioxidant and antimicrobial edible films based on dextran containing polyphenols from yarrow extract. in PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia. 2018;:72.
https://hdl.handle.net/21.15107/rcub_vinar_10722 .

Davidović, Slađana, Miljković, Miona, Radovanović, Neda, Gordić, Milan V., Nešić, Aleksandra, Dimitrijević, Suzana, "Antioxidant and antimicrobial edible films based on dextran containing polyphenols from yarrow extract" in PolyChar 26th annual world forum on advanced materials, September 10-13, 2018, Tbilisi, Georgia (2018):72,
https://hdl.handle.net/21.15107/rcub_vinar_10722 .

TY  - JOUR
AU  - Mihajlovski, Katarina
AU  - Davidović, Slađana Z.
AU  - Veljović, Đorđe N.
AU  - Carević, Milica B.
AU  - Lazić, Vesna M.
AU  - Dimitrijević-Branković, Suzana I.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1866
AB  - The agricultural raw industry generates large amounts of annually by-products that create disposal problems. Hitherto, there have been no reported papers about the simultaneous production of cellulase and beta-amylase from these raw materials using Paenibacillus sp. that would reduce the costs. Thus, in this paper simultaneous cellulase (CMC-ase and avicelase) and beta-amylase production using barley bran and the application of the natural isolate Paenibacillus chitinolyticus CKS1 and potential enzymes in the hydrolysis process was studied. Response surface methodology was used to obtain the maximum enzyme activity (CMC-ase 0.405 U mL(-1), avicelase 0.433 U mL(-1) and beta-amylase 1.594U mL(-1)). Scanning electron microscopy showed degradation of the lignocellulosic-starch structure of barley bran after fermentation. The CKS1 bacterial supernatant, which contains cellulases and beta-amylase, could hydrolyze cotton fibres and barley bran, respectively. The main products after enzymatic hydrolysis of cotton fibres and barley bran, glucose (0.117 (-1)(g gmat)) and maltose (0.347 (-1)(g gmat)), were quantified by high performance liquid chromatography (HPLC). The produced enzymes could be used for hydrolysis of cotton fabric and barley bran to glucose and maltose, respectively. Application of simultaneous enzymes production using an agricultural by-product is economically and environmentally accepted and moreover, valuable biotechnological products, such as glucose and maltose, were obtained in this investigation.
T2  - Journal of the Serbian Chemical Society
T1  - Effective valorisation of barley bran for simultaneous cellulase and beta-amylase production by Paenibacillus chitinolyticus CKS1: Statistical optimization and enzymes application
VL  - 82
IS  - 11
SP  - 1223
EP  - 1236
DO  - 10.2298/JSC170514092M
ER  - 

@article{
author = "Mihajlovski, Katarina and Davidović, Slađana Z. and Veljović, Đorđe N. and Carević, Milica B. and Lazić, Vesna M. and Dimitrijević-Branković, Suzana I.",
year = "2017",
abstract = "The agricultural raw industry generates large amounts of annually by-products that create disposal problems. Hitherto, there have been no reported papers about the simultaneous production of cellulase and beta-amylase from these raw materials using Paenibacillus sp. that would reduce the costs. Thus, in this paper simultaneous cellulase (CMC-ase and avicelase) and beta-amylase production using barley bran and the application of the natural isolate Paenibacillus chitinolyticus CKS1 and potential enzymes in the hydrolysis process was studied. Response surface methodology was used to obtain the maximum enzyme activity (CMC-ase 0.405 U mL(-1), avicelase 0.433 U mL(-1) and beta-amylase 1.594U mL(-1)). Scanning electron microscopy showed degradation of the lignocellulosic-starch structure of barley bran after fermentation. The CKS1 bacterial supernatant, which contains cellulases and beta-amylase, could hydrolyze cotton fibres and barley bran, respectively. The main products after enzymatic hydrolysis of cotton fibres and barley bran, glucose (0.117 (-1)(g gmat)) and maltose (0.347 (-1)(g gmat)), were quantified by high performance liquid chromatography (HPLC). The produced enzymes could be used for hydrolysis of cotton fabric and barley bran to glucose and maltose, respectively. Application of simultaneous enzymes production using an agricultural by-product is economically and environmentally accepted and moreover, valuable biotechnological products, such as glucose and maltose, were obtained in this investigation.",
journal = "Journal of the Serbian Chemical Society",
title = "Effective valorisation of barley bran for simultaneous cellulase and beta-amylase production by Paenibacillus chitinolyticus CKS1: Statistical optimization and enzymes application",
volume = "82",
number = "11",
pages = "1223-1236",
doi = "10.2298/JSC170514092M"
}

Mihajlovski, K., Davidović, S. Z., Veljović, Đ. N., Carević, M. B., Lazić, V. M.,& Dimitrijević-Branković, S. I.. (2017). Effective valorisation of barley bran for simultaneous cellulase and beta-amylase production by Paenibacillus chitinolyticus CKS1: Statistical optimization and enzymes application. in Journal of the Serbian Chemical Society, 82(11), 1223-1236.
https://doi.org/10.2298/JSC170514092M

Mihajlovski K, Davidović SZ, Veljović ĐN, Carević MB, Lazić VM, Dimitrijević-Branković SI. Effective valorisation of barley bran for simultaneous cellulase and beta-amylase production by Paenibacillus chitinolyticus CKS1: Statistical optimization and enzymes application. in Journal of the Serbian Chemical Society. 2017;82(11):1223-1236.
doi:10.2298/JSC170514092M .

Mihajlovski, Katarina, Davidović, Slađana Z., Veljović, Đorđe N., Carević, Milica B., Lazić, Vesna M., Dimitrijević-Branković, Suzana I., "Effective valorisation of barley bran for simultaneous cellulase and beta-amylase production by Paenibacillus chitinolyticus CKS1: Statistical optimization and enzymes application" in Journal of the Serbian Chemical Society, 82, no. 11 (2017):1223-1236,
https://doi.org/10.2298/JSC170514092M . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Gordić, Milan V.
AU  - Onjia, Antonije E.
AU  - Davidović, Slađana Z.
AU  - Miljković, Miona G.
AU  - Dimitrijević-Branković, Suzana I.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1344
AB  - In this work, antimicrobial bioinspired films made from chitosan incorporated with triclosan were investigated. The tensile strenght of these films were in the range of 33 and 39 MPa, which presented satisfied mechanical stability comparable to the synthetic-based packages commonly used in industry. The addition of triclosan enhanced thermal stability and antimicrobial activity of chitosan films against Escherichia coli and Staphylococus aureus. Results obtained in this work demonstrated that chitosan/triclosan films could be potentially used as an eco-sustainable package in healthcare sector to prevent infections/contaminations.
T2  - Materials Letters
T1  - Chitosan-triclosan films for potential use as bio-antimicrobial bags in healthcare sector
VL  - 186
SP  - 368
EP  - 371
DO  - 10.1016/j.matlet.2016.10.028
ER  - 

@article{
author = "Nešić, Aleksandra and Gordić, Milan V. and Onjia, Antonije E. and Davidović, Slađana Z. and Miljković, Miona G. and Dimitrijević-Branković, Suzana I.",
year = "2017",
abstract = "In this work, antimicrobial bioinspired films made from chitosan incorporated with triclosan were investigated. The tensile strenght of these films were in the range of 33 and 39 MPa, which presented satisfied mechanical stability comparable to the synthetic-based packages commonly used in industry. The addition of triclosan enhanced thermal stability and antimicrobial activity of chitosan films against Escherichia coli and Staphylococus aureus. Results obtained in this work demonstrated that chitosan/triclosan films could be potentially used as an eco-sustainable package in healthcare sector to prevent infections/contaminations.",
journal = "Materials Letters",
title = "Chitosan-triclosan films for potential use as bio-antimicrobial bags in healthcare sector",
volume = "186",
pages = "368-371",
doi = "10.1016/j.matlet.2016.10.028"
}

Nešić, A., Gordić, M. V., Onjia, A. E., Davidović, S. Z., Miljković, M. G.,& Dimitrijević-Branković, S. I.. (2017). Chitosan-triclosan films for potential use as bio-antimicrobial bags in healthcare sector. in Materials Letters, 186, 368-371.
https://doi.org/10.1016/j.matlet.2016.10.028

Nešić A, Gordić MV, Onjia AE, Davidović SZ, Miljković MG, Dimitrijević-Branković SI. Chitosan-triclosan films for potential use as bio-antimicrobial bags in healthcare sector. in Materials Letters. 2017;186:368-371.
doi:10.1016/j.matlet.2016.10.028 .

Nešić, Aleksandra, Gordić, Milan V., Onjia, Antonije E., Davidović, Slađana Z., Miljković, Miona G., Dimitrijević-Branković, Suzana I., "Chitosan-triclosan films for potential use as bio-antimicrobial bags in healthcare sector" in Materials Letters, 186 (2017):368-371,
https://doi.org/10.1016/j.matlet.2016.10.028 . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Onjia, Antonije E.
AU  - Davidović, Slađana Z.
AU  - Dimitrijević, Suzana I.
AU  - Errico, Maria Emanuela
AU  - Santagata, Gabriella
AU  - Malinconico, Mario
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1385
AB  - In this study, pectin based films including different amounts of sodium alginate were prepared by casting method. All the films, with and without polyglycerol as plasticizer, were crosslinked with zinc ions in order to extend their potential functionality. The development of junction points, occurring during the crosslinking process with zinc ions, induced the increasing of free volume with following changing in chemico-physical properties of films. The inclusion of alginate in pectin based formulations improved the strength of zinc ions crosslinking network, whereas the addition of polyglycerol significantly improved mechanical performance. Finally, zinc-crosslinked films evidenced antimicrobial activity against the most common exploited pathogens: Staphylococcus Aureus, Escherichia Coli and Candida Albicans. These results suggest that zinc-crosslinked based films can be exploitable as novel bio-active biomaterials for protection and disinfection of medical devices. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Carbohydrate Polymers
T1  - Design of pectin-sodium alginate based films for potential healthcare application: Study of chemico-physical interactions between the components of films and assessment of their antimicrobial activity
VL  - 157
SP  - 981
EP  - 990
DO  - 10.1016/j.carbpol.2016.10.054
ER  - 

@article{
author = "Nešić, Aleksandra and Onjia, Antonije E. and Davidović, Slađana Z. and Dimitrijević, Suzana I. and Errico, Maria Emanuela and Santagata, Gabriella and Malinconico, Mario",
year = "2017",
abstract = "In this study, pectin based films including different amounts of sodium alginate were prepared by casting method. All the films, with and without polyglycerol as plasticizer, were crosslinked with zinc ions in order to extend their potential functionality. The development of junction points, occurring during the crosslinking process with zinc ions, induced the increasing of free volume with following changing in chemico-physical properties of films. The inclusion of alginate in pectin based formulations improved the strength of zinc ions crosslinking network, whereas the addition of polyglycerol significantly improved mechanical performance. Finally, zinc-crosslinked films evidenced antimicrobial activity against the most common exploited pathogens: Staphylococcus Aureus, Escherichia Coli and Candida Albicans. These results suggest that zinc-crosslinked based films can be exploitable as novel bio-active biomaterials for protection and disinfection of medical devices. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Carbohydrate Polymers",
title = "Design of pectin-sodium alginate based films for potential healthcare application: Study of chemico-physical interactions between the components of films and assessment of their antimicrobial activity",
volume = "157",
pages = "981-990",
doi = "10.1016/j.carbpol.2016.10.054"
}

Nešić, A., Onjia, A. E., Davidović, S. Z., Dimitrijević, S. I., Errico, M. E., Santagata, G.,& Malinconico, M.. (2017). Design of pectin-sodium alginate based films for potential healthcare application: Study of chemico-physical interactions between the components of films and assessment of their antimicrobial activity. in Carbohydrate Polymers, 157, 981-990.
https://doi.org/10.1016/j.carbpol.2016.10.054

Nešić A, Onjia AE, Davidović SZ, Dimitrijević SI, Errico ME, Santagata G, Malinconico M. Design of pectin-sodium alginate based films for potential healthcare application: Study of chemico-physical interactions between the components of films and assessment of their antimicrobial activity. in Carbohydrate Polymers. 2017;157:981-990.
doi:10.1016/j.carbpol.2016.10.054 .

Nešić, Aleksandra, Onjia, Antonije E., Davidović, Slađana Z., Dimitrijević, Suzana I., Errico, Maria Emanuela, Santagata, Gabriella, Malinconico, Mario, "Design of pectin-sodium alginate based films for potential healthcare application: Study of chemico-physical interactions between the components of films and assessment of their antimicrobial activity" in Carbohydrate Polymers, 157 (2017):981-990,
https://doi.org/10.1016/j.carbpol.2016.10.054 . .

TY  - JOUR
AU  - Davidović, Slađana Z.
AU  - Lazić, Vesna M.
AU  - Vukoje, Ivana D.
AU  - Papan, Jelena
AU  - Anhrenkiel, S. Phillip
AU  - Dimitrijević, Suzana I.
AU  - Nedeljković, Jovan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1887
AB  - A simple, fast and non-costly method for selective cysteine (Cys) detection, based on optical changes of silver colloids, is developed. For that purpose, stable colloids consisting of silver nanoparticles (Ag NPs) coated with polysaccharide dextran (Dex), isolated from bacterium species Leuconostoc mesenteroides T3, were prepared. The synthesized samples were thoroughly characterized including absorption and FTIR spectroscopy, as well as transmission electron microscopy and X-ray diffraction analysis. The silver colloids display high sensitivity and selectivity towards Cys detection in aqueous solutions. The Ag NPs coated with Dex provide possibility to detect Cys among a dozen amino acids and its detection limit was found to be 12.0 M. The sensing mechanism - red shift of optical absorption - is discussed in terms of the agglomeration of Ag NPs due to formation of hydrogen bonds between Cys molecules attached to different Ag NPs. (C) 2017 Elsevier B.V. All rights reserved.
T2  - Colloids and Surfaces. B: Biointerfaces
T1  - Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection
VL  - 160
SP  - 184
EP  - 191
DO  - 10.1016/j.colsurfb.2017.09.031
ER  - 

@article{
author = "Davidović, Slađana Z. and Lazić, Vesna M. and Vukoje, Ivana D. and Papan, Jelena and Anhrenkiel, S. Phillip and Dimitrijević, Suzana I. and Nedeljković, Jovan",
year = "2017",
abstract = "A simple, fast and non-costly method for selective cysteine (Cys) detection, based on optical changes of silver colloids, is developed. For that purpose, stable colloids consisting of silver nanoparticles (Ag NPs) coated with polysaccharide dextran (Dex), isolated from bacterium species Leuconostoc mesenteroides T3, were prepared. The synthesized samples were thoroughly characterized including absorption and FTIR spectroscopy, as well as transmission electron microscopy and X-ray diffraction analysis. The silver colloids display high sensitivity and selectivity towards Cys detection in aqueous solutions. The Ag NPs coated with Dex provide possibility to detect Cys among a dozen amino acids and its detection limit was found to be 12.0 M. The sensing mechanism - red shift of optical absorption - is discussed in terms of the agglomeration of Ag NPs due to formation of hydrogen bonds between Cys molecules attached to different Ag NPs. (C) 2017 Elsevier B.V. All rights reserved.",
journal = "Colloids and Surfaces. B: Biointerfaces",
title = "Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection",
volume = "160",
pages = "184-191",
doi = "10.1016/j.colsurfb.2017.09.031"
}

Davidović, S. Z., Lazić, V. M., Vukoje, I. D., Papan, J., Anhrenkiel, S. P., Dimitrijević, S. I.,& Nedeljković, J.. (2017). Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection. in Colloids and Surfaces. B: Biointerfaces, 160, 184-191.
https://doi.org/10.1016/j.colsurfb.2017.09.031

Davidović SZ, Lazić VM, Vukoje ID, Papan J, Anhrenkiel SP, Dimitrijević SI, Nedeljković J. Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection. in Colloids and Surfaces. B: Biointerfaces. 2017;160:184-191.
doi:10.1016/j.colsurfb.2017.09.031 .

Davidović, Slađana Z., Lazić, Vesna M., Vukoje, Ivana D., Papan, Jelena, Anhrenkiel, S. Phillip, Dimitrijević, Suzana I., Nedeljković, Jovan, "Dextran coated silver nanoparticles Chemical sensor for selective cysteine detection" in Colloids and Surfaces. B: Biointerfaces, 160 (2017):184-191,
https://doi.org/10.1016/j.colsurfb.2017.09.031 . .