Obradović, Nataša S.

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orcid::0000-0001-7118-495X
  • Obradović, Nataša S. (3)
Projects

Author's Bibliography

Water–Rock Interactions across Volcanic Aquifers of the Lece Andesite Complex (Southern Serbia): Geochemistry and Environmental Impact

Poznanović-Spahić, Maja; Marinković, Goran; Spahić, Darko; Sakan, Sanja; Jovanić, Ivana; Magazinović, Marina; Obradović, Nataša S.

(MDPI, 2023)

TY  - JOUR
AU  - Poznanović-Spahić, Maja
AU  - Marinković, Goran
AU  - Spahić, Darko
AU  - Sakan, Sanja
AU  - Jovanić, Ivana
AU  - Magazinović, Marina
AU  - Obradović, Nataša S.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6818
AB  - The study of aquifers of the Lece andesite complex (LAC) and its surroundings yielded a new procedural stepwise analysis that allowed the assessment of the origin of elements, particularly in areas affected by both anthropogenic and natural influences. The methodology uses the mineralogical composition of the rocks, including the elements available in rocks and groundwater. This study
analyzes the element ratios B/Cl−, Na+/Ca2+, Ca2+/Mg2+, HCO3−/Cl−, and Na+/Na+ + Cl−; the correlations are coupled with a statistical analysis. In addition to reevaluating the already published water content, we provide an important new dataset. The results show that the main source of the water contamination with the elements B, F, U, As, Cu, Fe, Zn, Co, and Ni is the processes occurring
at the contact between the groundwaters and non-altered/altered (propylitized) andesite rocks. This is also observed in the waters extracted from crystalline schists. The results may help develop an efficient use and assessment of the qualitative water potential of the LAC reservoirs. Similarly, the results highlight the applicability of the groundwaters, facilitating their regional research and use, further encouraging new initiatives for the preservation and protection of human and animal health.
PB  - MDPI
T2  - Water
T1  - Water–Rock Interactions across Volcanic Aquifers of the Lece Andesite Complex (Southern Serbia): Geochemistry and Environmental Impact
VL  - 15
IS  - 20
SP  - 3653
DO  - 10.3390/w15203653
ER  - 
@article{
author = "Poznanović-Spahić, Maja and Marinković, Goran and Spahić, Darko and Sakan, Sanja and Jovanić, Ivana and Magazinović, Marina and Obradović, Nataša S.",
year = "2023",
abstract = "The study of aquifers of the Lece andesite complex (LAC) and its surroundings yielded a new procedural stepwise analysis that allowed the assessment of the origin of elements, particularly in areas affected by both anthropogenic and natural influences. The methodology uses the mineralogical composition of the rocks, including the elements available in rocks and groundwater. This study
analyzes the element ratios B/Cl−, Na+/Ca2+, Ca2+/Mg2+, HCO3−/Cl−, and Na+/Na+ + Cl−; the correlations are coupled with a statistical analysis. In addition to reevaluating the already published water content, we provide an important new dataset. The results show that the main source of the water contamination with the elements B, F, U, As, Cu, Fe, Zn, Co, and Ni is the processes occurring
at the contact between the groundwaters and non-altered/altered (propylitized) andesite rocks. This is also observed in the waters extracted from crystalline schists. The results may help develop an efficient use and assessment of the qualitative water potential of the LAC reservoirs. Similarly, the results highlight the applicability of the groundwaters, facilitating their regional research and use, further encouraging new initiatives for the preservation and protection of human and animal health.",
publisher = "MDPI",
journal = "Water",
title = "Water–Rock Interactions across Volcanic Aquifers of the Lece Andesite Complex (Southern Serbia): Geochemistry and Environmental Impact",
volume = "15",
number = "20",
pages = "3653",
doi = "10.3390/w15203653"
}
Poznanović-Spahić, M., Marinković, G., Spahić, D., Sakan, S., Jovanić, I., Magazinović, M.,& Obradović, N. S.. (2023). Water–Rock Interactions across Volcanic Aquifers of the Lece Andesite Complex (Southern Serbia): Geochemistry and Environmental Impact. in Water
MDPI., 15(20), 3653.
https://doi.org/10.3390/w15203653
Poznanović-Spahić M, Marinković G, Spahić D, Sakan S, Jovanić I, Magazinović M, Obradović NS. Water–Rock Interactions across Volcanic Aquifers of the Lece Andesite Complex (Southern Serbia): Geochemistry and Environmental Impact. in Water. 2023;15(20):3653.
doi:10.3390/w15203653 .
Poznanović-Spahić, Maja, Marinković, Goran, Spahić, Darko, Sakan, Sanja, Jovanić, Ivana, Magazinović, Marina, Obradović, Nataša S., "Water–Rock Interactions across Volcanic Aquifers of the Lece Andesite Complex (Southern Serbia): Geochemistry and Environmental Impact" in Water, 15, no. 20 (2023):3653,
https://doi.org/10.3390/w15203653 . .
1
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1

Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid

Batinić, Petar M.; Đorđević, Verica; Obradović, Nataša S.; Krstić, Aleksandar D.; Stevanović, Sanja; Balanč, Bojana; Marković, Smilja; Pjanović, Rada; Mijin, Dušan; Bugarski, Branko

(Wiley, 2023)

TY  - JOUR
AU  - Batinić, Petar M.
AU  - Đorđević, Verica
AU  - Obradović, Nataša S.
AU  - Krstić, Aleksandar D.
AU  - Stevanović, Sanja
AU  - Balanč, Bojana
AU  - Marković, Smilja
AU  - Pjanović, Rada
AU  - Mijin, Dušan
AU  - Bugarski, Branko
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6422
AB  - Liposome-encapsulated folic acid was incorporated into the films made from sodium carboxymethyl cellulose (CMC) (2 mas%) and a mixture of carboxymethyl cellulose and solagum (9:1 w/w) using the film-forming cast solution method. Histidine was used to increase solubility for folic acid in liposomes (1-5 mg/ml), and propylene glycol was used as a film plasticizer (2.6 mas%). The obtained films (50-60 µm tick) containing 3.12-20.19 mg of folic acid per gram of film are envisaged to be used as patches for transdermal delivery of folic acid. Therefore, some physical, mechanical, release and structural attributes of the films were scrutinized. Folic acid gave yellow color to the films and contributed to stronger chemical bonds which resulted in improved strength of the film. Liposomes prolonged the release of folic acid from films to 24 h without adverse effects on mechanical properties of the films, but degraded homogeneity of the films, which could be ascribed to its agglomeration within the film matrix as revealed by AFM. According to the release at pH 5.5, the film formulation based on a blend of CMC and solagum containing 3 mg/ml liposome-encapsulated folic acid is recommended from the point of view of release kinetics determined by its solubility.  Practical application: Folic acid is effective in reducing oxidative stress levels in the skin and neutralizing the harmful free radicals and is also essential for various metabolic reactions in the body. However, the limited solubility of folic acid linked with its poor absorption in an organism, low storage stability, short half-life upon oral consumption, specific food preferences of some people, extensive liver metabolism, and pregnancy-induced vomiting point to a large potential in transdermal usage of folic acid. This has motivated us to design new multicomponent polymer-lipid systems as an alternative solution to overcome some of these drawbacks. The results obtained for these multicomponent films pointed to their potential for prolonged release of folic acid to 24 h, which can also be useful for scientists interested in encapsulating similar poorly soluble compounds in CMC patches. The finding can be also valuable information for pharmaceutical manufacturers and scientists worldwide.
PB  - Wiley
T2  - European Journal of Lipid Science and Technology
T1  - Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid
SP  - 2200169
DO  - 10.1002/ejlt.202200169
ER  - 
@article{
author = "Batinić, Petar M. and Đorđević, Verica and Obradović, Nataša S. and Krstić, Aleksandar D. and Stevanović, Sanja and Balanč, Bojana and Marković, Smilja and Pjanović, Rada and Mijin, Dušan and Bugarski, Branko",
year = "2023",
abstract = "Liposome-encapsulated folic acid was incorporated into the films made from sodium carboxymethyl cellulose (CMC) (2 mas%) and a mixture of carboxymethyl cellulose and solagum (9:1 w/w) using the film-forming cast solution method. Histidine was used to increase solubility for folic acid in liposomes (1-5 mg/ml), and propylene glycol was used as a film plasticizer (2.6 mas%). The obtained films (50-60 µm tick) containing 3.12-20.19 mg of folic acid per gram of film are envisaged to be used as patches for transdermal delivery of folic acid. Therefore, some physical, mechanical, release and structural attributes of the films were scrutinized. Folic acid gave yellow color to the films and contributed to stronger chemical bonds which resulted in improved strength of the film. Liposomes prolonged the release of folic acid from films to 24 h without adverse effects on mechanical properties of the films, but degraded homogeneity of the films, which could be ascribed to its agglomeration within the film matrix as revealed by AFM. According to the release at pH 5.5, the film formulation based on a blend of CMC and solagum containing 3 mg/ml liposome-encapsulated folic acid is recommended from the point of view of release kinetics determined by its solubility.  Practical application: Folic acid is effective in reducing oxidative stress levels in the skin and neutralizing the harmful free radicals and is also essential for various metabolic reactions in the body. However, the limited solubility of folic acid linked with its poor absorption in an organism, low storage stability, short half-life upon oral consumption, specific food preferences of some people, extensive liver metabolism, and pregnancy-induced vomiting point to a large potential in transdermal usage of folic acid. This has motivated us to design new multicomponent polymer-lipid systems as an alternative solution to overcome some of these drawbacks. The results obtained for these multicomponent films pointed to their potential for prolonged release of folic acid to 24 h, which can also be useful for scientists interested in encapsulating similar poorly soluble compounds in CMC patches. The finding can be also valuable information for pharmaceutical manufacturers and scientists worldwide.",
publisher = "Wiley",
journal = "European Journal of Lipid Science and Technology",
title = "Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid",
pages = "2200169",
doi = "10.1002/ejlt.202200169"
}
Batinić, P. M., Đorđević, V., Obradović, N. S., Krstić, A. D., Stevanović, S., Balanč, B., Marković, S., Pjanović, R., Mijin, D.,& Bugarski, B.. (2023). Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid. in European Journal of Lipid Science and Technology
Wiley., 2200169.
https://doi.org/10.1002/ejlt.202200169
Batinić PM, Đorđević V, Obradović NS, Krstić AD, Stevanović S, Balanč B, Marković S, Pjanović R, Mijin D, Bugarski B. Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid. in European Journal of Lipid Science and Technology. 2023;:2200169.
doi:10.1002/ejlt.202200169 .
Batinić, Petar M., Đorđević, Verica, Obradović, Nataša S., Krstić, Aleksandar D., Stevanović, Sanja, Balanč, Bojana, Marković, Smilja, Pjanović, Rada, Mijin, Dušan, Bugarski, Branko, "Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid" in European Journal of Lipid Science and Technology (2023):2200169,
https://doi.org/10.1002/ejlt.202200169 . .
1
1

Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid

Batinić, Petar M.; Đorđević, Verica; Obradović, Nataša S.; Krstić, Aleksandar D.; Stevanović, Sanja; Balanč, Bojana; Marković, Smilja; Pjanović, Rada; Mijin, Dušan; Bugarski, Branko

(Wiley, 2023)

TY  - JOUR
AU  - Batinić, Petar M.
AU  - Đorđević, Verica
AU  - Obradović, Nataša S.
AU  - Krstić, Aleksandar D.
AU  - Stevanović, Sanja
AU  - Balanč, Bojana
AU  - Marković, Smilja
AU  - Pjanović, Rada
AU  - Mijin, Dušan
AU  - Bugarski, Branko
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6421
AB  - Liposome-encapsulated folic acid was incorporated into the films made from sodium carboxymethyl cellulose (CMC) (2 mas%) and a mixture of carboxymethyl cellulose and solagum (9:1 w/w) using the film-forming cast solution method. Histidine was used to increase solubility for folic acid in liposomes (1-5 mg/ml), and propylene glycol was used as a film plasticizer (2.6 mas%). The obtained films (50-60 µm tick) containing 3.12-20.19 mg of folic acid per gram of film are envisaged to be used as patches for transdermal delivery of folic acid. Therefore, some physical, mechanical, release and structural attributes of the films were scrutinized. Folic acid gave yellow color to the films and contributed to stronger chemical bonds which resulted in improved strength of the film. Liposomes prolonged the release of folic acid from films to 24 h without adverse effects on mechanical properties of the films, but degraded homogeneity of the films, which could be ascribed to its agglomeration within the film matrix as revealed by AFM. According to the release at pH 5.5, the film formulation based on a blend of CMC and solagum containing 3 mg/ml liposome-encapsulated folic acid is recommended from the point of view of release kinetics determined by its solubility.  Practical application: Folic acid is effective in reducing oxidative stress levels in the skin and neutralizing the harmful free radicals and is also essential for various metabolic reactions in the body. However, the limited solubility of folic acid linked with its poor absorption in an organism, low storage stability, short half-life upon oral consumption, specific food preferences of some people, extensive liver metabolism, and pregnancy-induced vomiting point to a large potential in transdermal usage of folic acid. This has motivated us to design new multicomponent polymer-lipid systems as an alternative solution to overcome some of these drawbacks. The results obtained for these multicomponent films pointed to their potential for prolonged release of folic acid to 24 h, which can also be useful for scientists interested in encapsulating similar poorly soluble compounds in CMC patches. The finding can be also valuable information for pharmaceutical manufacturers and scientists worldwide.
PB  - Wiley
T2  - European Journal of Lipid Science and Technology
T1  - Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid
SP  - 2200169
DO  - 10.1002/ejlt.202200169
ER  - 
@article{
author = "Batinić, Petar M. and Đorđević, Verica and Obradović, Nataša S. and Krstić, Aleksandar D. and Stevanović, Sanja and Balanč, Bojana and Marković, Smilja and Pjanović, Rada and Mijin, Dušan and Bugarski, Branko",
year = "2023",
abstract = "Liposome-encapsulated folic acid was incorporated into the films made from sodium carboxymethyl cellulose (CMC) (2 mas%) and a mixture of carboxymethyl cellulose and solagum (9:1 w/w) using the film-forming cast solution method. Histidine was used to increase solubility for folic acid in liposomes (1-5 mg/ml), and propylene glycol was used as a film plasticizer (2.6 mas%). The obtained films (50-60 µm tick) containing 3.12-20.19 mg of folic acid per gram of film are envisaged to be used as patches for transdermal delivery of folic acid. Therefore, some physical, mechanical, release and structural attributes of the films were scrutinized. Folic acid gave yellow color to the films and contributed to stronger chemical bonds which resulted in improved strength of the film. Liposomes prolonged the release of folic acid from films to 24 h without adverse effects on mechanical properties of the films, but degraded homogeneity of the films, which could be ascribed to its agglomeration within the film matrix as revealed by AFM. According to the release at pH 5.5, the film formulation based on a blend of CMC and solagum containing 3 mg/ml liposome-encapsulated folic acid is recommended from the point of view of release kinetics determined by its solubility.  Practical application: Folic acid is effective in reducing oxidative stress levels in the skin and neutralizing the harmful free radicals and is also essential for various metabolic reactions in the body. However, the limited solubility of folic acid linked with its poor absorption in an organism, low storage stability, short half-life upon oral consumption, specific food preferences of some people, extensive liver metabolism, and pregnancy-induced vomiting point to a large potential in transdermal usage of folic acid. This has motivated us to design new multicomponent polymer-lipid systems as an alternative solution to overcome some of these drawbacks. The results obtained for these multicomponent films pointed to their potential for prolonged release of folic acid to 24 h, which can also be useful for scientists interested in encapsulating similar poorly soluble compounds in CMC patches. The finding can be also valuable information for pharmaceutical manufacturers and scientists worldwide.",
publisher = "Wiley",
journal = "European Journal of Lipid Science and Technology",
title = "Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid",
pages = "2200169",
doi = "10.1002/ejlt.202200169"
}
Batinić, P. M., Đorđević, V., Obradović, N. S., Krstić, A. D., Stevanović, S., Balanč, B., Marković, S., Pjanović, R., Mijin, D.,& Bugarski, B.. (2023). Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid. in European Journal of Lipid Science and Technology
Wiley., 2200169.
https://doi.org/10.1002/ejlt.202200169
Batinić PM, Đorđević V, Obradović NS, Krstić AD, Stevanović S, Balanč B, Marković S, Pjanović R, Mijin D, Bugarski B. Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid. in European Journal of Lipid Science and Technology. 2023;:2200169.
doi:10.1002/ejlt.202200169 .
Batinić, Petar M., Đorđević, Verica, Obradović, Nataša S., Krstić, Aleksandar D., Stevanović, Sanja, Balanč, Bojana, Marković, Smilja, Pjanović, Rada, Mijin, Dušan, Bugarski, Branko, "Polymer‐lipid matrice based on carboxymethyl cellulose/solagum and liposomes for controlled release of folic acid" in European Journal of Lipid Science and Technology (2023):2200169,
https://doi.org/10.1002/ejlt.202200169 . .
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1