Metal-loaded zeolite remediation of soils contaminated with pandrug-resistant Acinetobacter baumannii
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 resul...ted 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.
Keywords:
copper / environment / natural zeolite / pathogens / public health / silverSource:
Arhiv za higijenu rada i toksikologiju-Archives of Industrial Hygiene and Toxicology, 2020, 71, 2, 146-151Publisher:
- Inst Medical Research & Occupational Health, Zagreb
Funding / projects:
- Croatian Science Foundation [IP-2014-09-5656]
DOI: 10.2478/aiht-2020-71-3327
ISSN: 0004-1254
PubMed: 32975101
WoS: 000545780500006
Scopus: 2-s2.0-85090291098
Collections
Institution/Community
Tehnološko-metalurški fakultetTY - 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 . .