Bactericidal effect of zinc oxide nanoparticles on Gram-positive and Gram-negative strains for water decontamination using reverse spin technology

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00537882" target="_blank" >RIV/68378271:_____/20:00537882 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Bactericidal effect of zinc oxide nanoparticles on Gram-positive and Gram-negative strains for water decontamination using reverse spin technology

Original language description

We present an experimental study investigating the efficacy of zinc oxide nanoparticle use for water decontamination. A range of concentrations of commercially available spherical 50 nm zinc oxide particles were added to deionised water spiked with bacteria in a final volume of 40 mL contained inside a reverse spin bioreactor. The bioreactor rotated the bacteria-nanoparticle suspension at a defined speed (200 rpm) and duration (5 seconds) in one direction, then in the other direction to ensure constant mixing and enhanced interaction capability. The number of viable bacteria reduced with treatment time, and the rate of inactivation was concentration dependent. Gram-positive S. aureus bacteria were more resistant to zinc oxide nanoparticles compared to Gram-negative E. coli.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/GC19-02858J" target="_blank" >GC19-02858J: Charge transfer and microbiological interactions of hybrid metal oxide nanostructures</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů