TY  - JOUR
AU  - Hrenović, Jasna
AU  - Dekić, Svjetlana
AU  - Dikić, Jelena
AU  - Kazazić, Snjezana
AU  - Durn, Goran
AU  - Rajić, Nevenka
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4521
AB  - Due to the development of resistance to antimicrobial agents, bacterium Acinetobacter baumannii is nowadays a leading cause of nosocomial outbreaks. Clinically relevant A. baumannii outside hospital settings including natural soils affected by human waste represents a public-health risk for humans and animals. The aim of this study was to investigate the potential of metal-loaded zeolites to eliminate viable A. baumannii from artificially contaminated natural soils. A. baumannii isolate was subjected to the activity of natural zeolitised tuff (NZ) and Cu-modified (CuNZ) or Ag-modified zeolite (AgNZ) in wet, slightly acidic terra rossa and slightly alkaline red palaeosol. A. baumannii survived in terra rossa and red palaeosol supplemented with 1 wt% of NZ for seven days and four months, respectively. The addition of 1 wt% of CuNZ to terra rossa and red palaeosol shortened the survival of A. baumannii to three and 14 days, respectively. The addition of 0.1 wt% of AgNZ to both soils resulted in complete removal of viable A. baumannii within 1 h of contact, while the total native heterotrophic bacterial counts remained high. Since AgNZ is prepared with a simple modification of cost-effective and environmentally friendly natural zeolite, it is a promising material for the remediation of soils contaminated with pandrug-resistant A. baumannii.
PB  - Inst Medical Research & Occupational Health, Zagreb
T2  - Arhiv za higijenu rada i toksikologiju-Archives of Industrial Hygiene and Toxicology
T1  - Metal-loaded zeolite remediation of soils contaminated with pandrug-resistant Acinetobacter baumannii
EP  - 151
IS  - 2
SP  - 146
VL  - 71
DO  - 10.2478/aiht-2020-71-3327
ER  - 

@article{
author = "Hrenović, Jasna and Dekić, Svjetlana and Dikić, Jelena and Kazazić, Snjezana and Durn, Goran and Rajić, Nevenka",
year = "2020",
abstract = "Due to the development of resistance to antimicrobial agents, bacterium Acinetobacter baumannii is nowadays a leading cause of nosocomial outbreaks. Clinically relevant A. baumannii outside hospital settings including natural soils affected by human waste represents a public-health risk for humans and animals. The aim of this study was to investigate the potential of metal-loaded zeolites to eliminate viable A. baumannii from artificially contaminated natural soils. A. baumannii isolate was subjected to the activity of natural zeolitised tuff (NZ) and Cu-modified (CuNZ) or Ag-modified zeolite (AgNZ) in wet, slightly acidic terra rossa and slightly alkaline red palaeosol. A. baumannii survived in terra rossa and red palaeosol supplemented with 1 wt% of NZ for seven days and four months, respectively. The addition of 1 wt% of CuNZ to terra rossa and red palaeosol shortened the survival of A. baumannii to three and 14 days, respectively. The addition of 0.1 wt% of AgNZ to both soils resulted in complete removal of viable A. baumannii within 1 h of contact, while the total native heterotrophic bacterial counts remained high. Since AgNZ is prepared with a simple modification of cost-effective and environmentally friendly natural zeolite, it is a promising material for the remediation of soils contaminated with pandrug-resistant A. baumannii.",
publisher = "Inst Medical Research & Occupational Health, Zagreb",
journal = "Arhiv za higijenu rada i toksikologiju-Archives of Industrial Hygiene and Toxicology",
title = "Metal-loaded zeolite remediation of soils contaminated with pandrug-resistant Acinetobacter baumannii",
pages = "151-146",
number = "2",
volume = "71",
doi = "10.2478/aiht-2020-71-3327"
}

Hrenović, J., Dekić, S., Dikić, J., Kazazić, S., Durn, G.,& Rajić, N.. (2020). Metal-loaded zeolite remediation of soils contaminated with pandrug-resistant Acinetobacter baumannii. in Arhiv za higijenu rada i toksikologiju-Archives of Industrial Hygiene and Toxicology
Inst Medical Research & Occupational Health, Zagreb., 71(2), 146-151.
https://doi.org/10.2478/aiht-2020-71-3327

Hrenović J, Dekić S, Dikić J, Kazazić S, Durn G, Rajić N. Metal-loaded zeolite remediation of soils contaminated with pandrug-resistant Acinetobacter baumannii. in Arhiv za higijenu rada i toksikologiju-Archives of Industrial Hygiene and Toxicology. 2020;71(2):146-151.
doi:10.2478/aiht-2020-71-3327 .

Hrenović, Jasna, Dekić, Svjetlana, Dikić, Jelena, Kazazić, Snjezana, Durn, Goran, Rajić, Nevenka, "Metal-loaded zeolite remediation of soils contaminated with pandrug-resistant Acinetobacter baumannii" in Arhiv za higijenu rada i toksikologiju-Archives of Industrial Hygiene and Toxicology, 71, no. 2 (2020):146-151,
https://doi.org/10.2478/aiht-2020-71-3327 . .

TY  - JOUR
AU  - Dikić, Jelena
AU  - Hrenović, Jasna
AU  - Durn, Goran
AU  - Kovacić, Ana
AU  - Rajić, Nevenka
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4109
AB  - Antibacterial activity of a natural zeolite, clinoptilolite (Z), enriched with about 0.4-0.5 mmol of Ag (Ag-Z), Cu (Cu-Z) or Zn (Zn-Z) was tested toward two strains of Gram-negative bacteria - Escherichia coli and Acinetobacter baumannii - in natural seawater from Adriatic Sea (Croatia). The Ag-Z and Cu-Z exhibited bactericidal activity toward E. coli and A. baumannii after 3 and 6 h of exposure, respectively. The Zn-Z showed antibacterial activity toward both strains, but lacking the bactericidal effect even after 24 h of exposure. All studied samples released metal cations in seawater. Concentration of Ag and Zn leached from Ag-Z and Zn-Z was higher than maximum allowable concentrations (MAC) for drinking water, whereas concentration of Cu was below MAC. Due to high concentration of Na+ in seawater (about 1.2 g Na+ dm(-3)) an ion-exchange process can be responsible for the leaching of the studied cations. The lowest extent of leaching from Cu-Z was ascribed to different position and geometry of sites occupied by Cu(II) in the clinoptilolite lattice. The antibacterial activity of M-Z was attributed to the metal cations leached from the zeolite lattice into seawater. The obtained results indicate that Cu-Z can be considered as a promising disinfectant for treatment of seawater.
PB  - Desalination Publ, Hopkinton
T2  - Desalination and Water Treatment
T1  - Antibacterial activity of metal-containing clinoptilolite in natural seawater
EP  - 79
SP  - 75
VL  - 170
DO  - 10.5004/dwt.2019.24712
ER  - 

@article{
author = "Dikić, Jelena and Hrenović, Jasna and Durn, Goran and Kovacić, Ana and Rajić, Nevenka",
year = "2019",
abstract = "Antibacterial activity of a natural zeolite, clinoptilolite (Z), enriched with about 0.4-0.5 mmol of Ag (Ag-Z), Cu (Cu-Z) or Zn (Zn-Z) was tested toward two strains of Gram-negative bacteria - Escherichia coli and Acinetobacter baumannii - in natural seawater from Adriatic Sea (Croatia). The Ag-Z and Cu-Z exhibited bactericidal activity toward E. coli and A. baumannii after 3 and 6 h of exposure, respectively. The Zn-Z showed antibacterial activity toward both strains, but lacking the bactericidal effect even after 24 h of exposure. All studied samples released metal cations in seawater. Concentration of Ag and Zn leached from Ag-Z and Zn-Z was higher than maximum allowable concentrations (MAC) for drinking water, whereas concentration of Cu was below MAC. Due to high concentration of Na+ in seawater (about 1.2 g Na+ dm(-3)) an ion-exchange process can be responsible for the leaching of the studied cations. The lowest extent of leaching from Cu-Z was ascribed to different position and geometry of sites occupied by Cu(II) in the clinoptilolite lattice. The antibacterial activity of M-Z was attributed to the metal cations leached from the zeolite lattice into seawater. The obtained results indicate that Cu-Z can be considered as a promising disinfectant for treatment of seawater.",
publisher = "Desalination Publ, Hopkinton",
journal = "Desalination and Water Treatment",
title = "Antibacterial activity of metal-containing clinoptilolite in natural seawater",
pages = "79-75",
volume = "170",
doi = "10.5004/dwt.2019.24712"
}

Dikić, J., Hrenović, J., Durn, G., Kovacić, A.,& Rajić, N.. (2019). Antibacterial activity of metal-containing clinoptilolite in natural seawater. in Desalination and Water Treatment
Desalination Publ, Hopkinton., 170, 75-79.
https://doi.org/10.5004/dwt.2019.24712

Dikić J, Hrenović J, Durn G, Kovacić A, Rajić N. Antibacterial activity of metal-containing clinoptilolite in natural seawater. in Desalination and Water Treatment. 2019;170:75-79.
doi:10.5004/dwt.2019.24712 .

Dikić, Jelena, Hrenović, Jasna, Durn, Goran, Kovacić, Ana, Rajić, Nevenka, "Antibacterial activity of metal-containing clinoptilolite in natural seawater" in Desalination and Water Treatment, 170 (2019):75-79,
https://doi.org/10.5004/dwt.2019.24712 . .