TY  - JOUR
AU  - Dikić, Jelena
AU  - Hrenović, Jasna
AU  - Matijasević, Danka
AU  - Nikšić, Miomir
AU  - Rajić, Nevenka
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3578
AB  - Two types of zeolites-natural clinoptilolite (NZ) and synthetic zeolite A (A)-were enriched with approx. 0.25 mmol of Cu(II), Zn(II), or Ag(I) ions, and the obtained materials (M-Z) were tested against three different isolates of Escherichia coli. Two isolates were environmental isolates from waters in Serbia whereas the third one was DSM 498. Antibacterial activity was studied in different water media-nutrient-rich media (peptone water), water from Sava Lake, and commercially available spring water. The Ag-containing zeolites showed bactericidal activity in the nutrient-rich peptone water after 1 h of contact. Cu- and Zn-containing zeolites showed bactericidal activity in real water samples. Antibacterial activity of the M-Z decreases in all three examined water media in the following order: Ag-NZ ae Ag-A  gt  Cu-NZ ae Cu-A  gt  Zn-NZ  gt  gt  gt  Zn-A, suggesting that mainly the metal type and not the zeolite type have a role in the antibacterial activity. Leaching experiments showed small amounts of the leached Cu(II) and Zn(II) ions, indicating that the antibacterial activity is not due to the metal ions but should be attributed to the M-Z itself. However, leached amounts of Ag(I) from Ag-NZ and Ag-A in peptone water indicate that the released Ag(I) could be mainly responsible for the bactericidal effect of the Ag(I)-containing zeolites. Since no loss of cellular material was found, the antibacterial activity is not attributed to cytoplasmic membrane damage.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Bactericidal activity of Cu-, Zn-, and Ag-containing zeolites toward Escherichia coli isolates
EP  - 20281
IS  - 25
SP  - 20273
VL  - 24
DO  - 10.1007/s11356-017-9643-8
ER  - 

@article{
author = "Dikić, Jelena and Hrenović, Jasna and Matijasević, Danka and Nikšić, Miomir and Rajić, Nevenka",
year = "2017",
abstract = "Two types of zeolites-natural clinoptilolite (NZ) and synthetic zeolite A (A)-were enriched with approx. 0.25 mmol of Cu(II), Zn(II), or Ag(I) ions, and the obtained materials (M-Z) were tested against three different isolates of Escherichia coli. Two isolates were environmental isolates from waters in Serbia whereas the third one was DSM 498. Antibacterial activity was studied in different water media-nutrient-rich media (peptone water), water from Sava Lake, and commercially available spring water. The Ag-containing zeolites showed bactericidal activity in the nutrient-rich peptone water after 1 h of contact. Cu- and Zn-containing zeolites showed bactericidal activity in real water samples. Antibacterial activity of the M-Z decreases in all three examined water media in the following order: Ag-NZ ae Ag-A  gt  Cu-NZ ae Cu-A  gt  Zn-NZ  gt  gt  gt  Zn-A, suggesting that mainly the metal type and not the zeolite type have a role in the antibacterial activity. Leaching experiments showed small amounts of the leached Cu(II) and Zn(II) ions, indicating that the antibacterial activity is not due to the metal ions but should be attributed to the M-Z itself. However, leached amounts of Ag(I) from Ag-NZ and Ag-A in peptone water indicate that the released Ag(I) could be mainly responsible for the bactericidal effect of the Ag(I)-containing zeolites. Since no loss of cellular material was found, the antibacterial activity is not attributed to cytoplasmic membrane damage.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Bactericidal activity of Cu-, Zn-, and Ag-containing zeolites toward Escherichia coli isolates",
pages = "20281-20273",
number = "25",
volume = "24",
doi = "10.1007/s11356-017-9643-8"
}

Dikić, J., Hrenović, J., Matijasević, D., Nikšić, M.,& Rajić, N.. (2017). Bactericidal activity of Cu-, Zn-, and Ag-containing zeolites toward Escherichia coli isolates. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 24(25), 20273-20281.
https://doi.org/10.1007/s11356-017-9643-8

Dikić J, Hrenović J, Matijasević D, Nikšić M, Rajić N. Bactericidal activity of Cu-, Zn-, and Ag-containing zeolites toward Escherichia coli isolates. in Environmental Science and Pollution Research. 2017;24(25):20273-20281.
doi:10.1007/s11356-017-9643-8 .

Dikić, Jelena, Hrenović, Jasna, Matijasević, Danka, Nikšić, Miomir, Rajić, Nevenka, "Bactericidal activity of Cu-, Zn-, and Ag-containing zeolites toward Escherichia coli isolates" in Environmental Science and Pollution Research, 24, no. 25 (2017):20273-20281,
https://doi.org/10.1007/s11356-017-9643-8 . .

TY  - JOUR
AU  - Malagurski, Ivana
AU  - Lević, Steva
AU  - Pantić, Milena
AU  - Matijasević, Danka
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
AU  - Dimitrijević-Branković, Suzana
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3686
AB  - New bioactive and antimicrobial biomaterials were produced by alginate-mediated biomineralization with Zn-mineral phase. The synthesis procedure is simple, cost-effective and resulted in. two different Zn-mineralized alginate nanocomposites, Zn-carbonate/Zn-alginate and Zn-phosphate/Zn-alginate. The presence of Zn-mineral phase and its type, have significantly affected nanocomposite morphology, stability, total metallic loading and potential to release Zn(II) in physiological environment. Antimicrobial experiments showed that both types of Zn-mineralized nanocomposites exhibit strong antimicrobial effect against Escherichia coli, Staphylococcus aureus and Candida albicans. These results suggest that alginate biomineralization, where minerals are salts of essential metallic ions like Zn(II), represents a'good strategy for designing multifunctional biomaterials for potential biomedical applications.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Synthesis and antimicrobial properties of Zn-mineralized alginate nanocomposites
EP  - 321
SP  - 313
VL  - 165
DO  - 10.1016/j.carbpol.2017.02.064
ER  - 

@article{
author = "Malagurski, Ivana and Lević, Steva and Pantić, Milena and Matijasević, Danka and Mitrić, Miodrag and Pavlović, Vladimir B. and Dimitrijević-Branković, Suzana",
year = "2017",
abstract = "New bioactive and antimicrobial biomaterials were produced by alginate-mediated biomineralization with Zn-mineral phase. The synthesis procedure is simple, cost-effective and resulted in. two different Zn-mineralized alginate nanocomposites, Zn-carbonate/Zn-alginate and Zn-phosphate/Zn-alginate. The presence of Zn-mineral phase and its type, have significantly affected nanocomposite morphology, stability, total metallic loading and potential to release Zn(II) in physiological environment. Antimicrobial experiments showed that both types of Zn-mineralized nanocomposites exhibit strong antimicrobial effect against Escherichia coli, Staphylococcus aureus and Candida albicans. These results suggest that alginate biomineralization, where minerals are salts of essential metallic ions like Zn(II), represents a'good strategy for designing multifunctional biomaterials for potential biomedical applications.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Synthesis and antimicrobial properties of Zn-mineralized alginate nanocomposites",
pages = "321-313",
volume = "165",
doi = "10.1016/j.carbpol.2017.02.064"
}

Malagurski, I., Lević, S., Pantić, M., Matijasević, D., Mitrić, M., Pavlović, V. B.,& Dimitrijević-Branković, S.. (2017). Synthesis and antimicrobial properties of Zn-mineralized alginate nanocomposites. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 165, 313-321.
https://doi.org/10.1016/j.carbpol.2017.02.064

Malagurski I, Lević S, Pantić M, Matijasević D, Mitrić M, Pavlović VB, Dimitrijević-Branković S. Synthesis and antimicrobial properties of Zn-mineralized alginate nanocomposites. in Carbohydrate Polymers. 2017;165:313-321.
doi:10.1016/j.carbpol.2017.02.064 .

Malagurski, Ivana, Lević, Steva, Pantić, Milena, Matijasević, Danka, Mitrić, Miodrag, Pavlović, Vladimir B., Dimitrijević-Branković, Suzana, "Synthesis and antimicrobial properties of Zn-mineralized alginate nanocomposites" in Carbohydrate Polymers, 165 (2017):313-321,
https://doi.org/10.1016/j.carbpol.2017.02.064 . .

TY  - JOUR
AU  - Jevtić, Sanja
AU  - Arcon, Iztok
AU  - Recnik, Aleksander
AU  - Babić, Biljana M.
AU  - Mazaj, Matjaz
AU  - Pavlović, Jelena
AU  - Matijasević, Danka
AU  - Nikšić, Miomir
AU  - Rajić, Nevenka
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2662
AB  - Se(IV) and Se(VI) anions are the dominant species of Se existing in aqueous systems. In this study, the iron(III)-modified natural zeolitic tuff (Fe-CLI) from the Serbian deposit Zlatokop has been investigated as an adsorbent for the Se oxyanions. Fe-CLI shows adsorption activity for both Se(IV) and Se(VI) which decreases with increasing pH. The adsorption capacity of Fe-CLI is found to be higher for Se(IV) than for Se(VI). Kinetics data follow the pseudo-second-order model and the obtained parameters k indicate that the rates of adsorption and desorption are higher for Se(VI). Extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) analyses reveal that Se is bound at the zeolite surface forming not only the Se-O-Fe but also Se-O-Si bonds. The adsorption mechanism depends of the type of oxo ions. Samples of zeolitic tuff which contain Se were tested as soil supplements for the cultivation of Pleurotus ostreatus mushrooms. The fungus adsorbed the inorganic Se from zeolitic tuff transforming it to a more valuable organically bound form.
PB  - Elsevier, Amsterdam
T2  - Microporous and Mesoporous Materials
T1  - The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions
EP  - 100
SP  - 92
VL  - 197
DO  - 10.1016/j.micromeso.2014.06.008
ER  - 

@article{
author = "Jevtić, Sanja and Arcon, Iztok and Recnik, Aleksander and Babić, Biljana M. and Mazaj, Matjaz and Pavlović, Jelena and Matijasević, Danka and Nikšić, Miomir and Rajić, Nevenka",
year = "2014",
abstract = "Se(IV) and Se(VI) anions are the dominant species of Se existing in aqueous systems. In this study, the iron(III)-modified natural zeolitic tuff (Fe-CLI) from the Serbian deposit Zlatokop has been investigated as an adsorbent for the Se oxyanions. Fe-CLI shows adsorption activity for both Se(IV) and Se(VI) which decreases with increasing pH. The adsorption capacity of Fe-CLI is found to be higher for Se(IV) than for Se(VI). Kinetics data follow the pseudo-second-order model and the obtained parameters k indicate that the rates of adsorption and desorption are higher for Se(VI). Extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) analyses reveal that Se is bound at the zeolite surface forming not only the Se-O-Fe but also Se-O-Si bonds. The adsorption mechanism depends of the type of oxo ions. Samples of zeolitic tuff which contain Se were tested as soil supplements for the cultivation of Pleurotus ostreatus mushrooms. The fungus adsorbed the inorganic Se from zeolitic tuff transforming it to a more valuable organically bound form.",
publisher = "Elsevier, Amsterdam",
journal = "Microporous and Mesoporous Materials",
title = "The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions",
pages = "100-92",
volume = "197",
doi = "10.1016/j.micromeso.2014.06.008"
}

Jevtić, S., Arcon, I., Recnik, A., Babić, B. M., Mazaj, M., Pavlović, J., Matijasević, D., Nikšić, M.,& Rajić, N.. (2014). The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions. in Microporous and Mesoporous Materials
Elsevier, Amsterdam., 197, 92-100.
https://doi.org/10.1016/j.micromeso.2014.06.008

Jevtić S, Arcon I, Recnik A, Babić BM, Mazaj M, Pavlović J, Matijasević D, Nikšić M, Rajić N. The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions. in Microporous and Mesoporous Materials. 2014;197:92-100.
doi:10.1016/j.micromeso.2014.06.008 .

Jevtić, Sanja, Arcon, Iztok, Recnik, Aleksander, Babić, Biljana M., Mazaj, Matjaz, Pavlović, Jelena, Matijasević, Danka, Nikšić, Miomir, Rajić, Nevenka, "The iron(III)-modified natural zeolitic tuff as an adsorbent and carrier for selenium oxyanions" in Microporous and Mesoporous Materials, 197 (2014):92-100,
https://doi.org/10.1016/j.micromeso.2014.06.008 . .