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

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

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

Projekt

<a href="/cs/project/GC19-02858J" target="_blank" >GC19-02858J: Přenos náboje a mikrobiologické interakce hybridních nanostruktur oxidů kovů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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