Hrenović, Jasna; Dekić, Svjetlana; Dikić, Jelena; Kazazić, Snježana; Durn, Goran; Rajić, Nevenka (2020) Metal-loaded zeolite remediation of soils contaminated with pandrug-resistant Acinetobacter baumannii. Arhiv za higijenu rada i toksikologiju, 71 (2). pp. 146-151. ISSN 0004-1254
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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.
| Item Type: | Article | ||||||||
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| Uncontrolled Keywords: | copper ; environment ; natural zeolite ; pathogens ; public health ; silver | ||||||||
| Subjects: | NATURAL SCIENCES > Geology NATURAL SCIENCES > Chemistry NATURAL SCIENCES > Biology |
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| Divisions: | Division of Physical Chemistry | ||||||||
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| Depositing User: | Snježana Kazazić | ||||||||
| Date Deposited: | 07 Feb 2022 11:36 | ||||||||
| URI: | http://fulir.irb.hr/id/eprint/6969 | ||||||||
| DOI: | 10.2478/aiht-2020-71-3327 |
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