Photokilling of Escherichia coli Using Hybrid Titania Nanoparticles Suspended in an Aqueous Liquid

Photokilling of Escherichia coli Using Hybrid Titania Nanoparticles Suspended in an Aqueous Liquid

In this work, the photokilling of Escherichia coli using a "one-pot" synthesized suspension of anatase crystallized nanoparticles is evaluated. Preliminary to the biological tests concerning the antibacterial efficiency, the fabricated suspension, using a derived sol-gel process in softche...

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Veröffentlicht in:Journal of biomaterials and nanobiotechnology 2013, Vol.4 (2), p.137-144
Hauptverfasser: Massard, Christophe, Bonnet, Muriel, Veisseire, Philippe, Sibaud, Yves, Caudron, Eric, Awitor, Komla Oscar
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Chemical Sciences
Escherichia coli
Material chemistry
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container_end_page 144
container_issue 2
container_start_page 137
container_title Journal of biomaterials and nanobiotechnology
container_volume 4
creator Massard, Christophe
Bonnet, Muriel
Veisseire, Philippe
Sibaud, Yves
Caudron, Eric
Awitor, Komla Oscar
description In this work, the photokilling of Escherichia coli using a "one-pot" synthesized suspension of anatase crystallized nanoparticles is evaluated. Preliminary to the biological tests concerning the antibacterial efficiency, the fabricated suspension, using a derived sol-gel process in softchemistry condition, is characterized. Structural properties of the nanoparticles are investigated using Electronic Transmission Microscopy (TEM) equipped with Selected Area Electron Diffraction (SAED) probe and X-ray diffraction. The inorganic solid content was evaluated by Thermogravimetric Analysis (TGA). Photodegradation of Acid Orange 7 in aqueous solution was used as a probe to assess the photocatalytic activity of the elaborated suspension under UV irradiation. The photokilling of Escherichia coli in presence of hybrid TiO2 nanoparticles suspended in aqueous liquid under UV irradiation is evaluated. Such TiO sub( 2) nanoparticles suspension shows a strong bactericidal activity with the total destruction of bacteria after only one hour.
doi_str_mv 10.4236/jbnb.2013.42019
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subjects Chemical Sciences
Escherichia coli
Material chemistry
title Photokilling of Escherichia coli Using Hybrid Titania Nanoparticles Suspended in an Aqueous Liquid
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