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Study of the antibacterial Process of single crystals of TiO2-B nanowires

S. León1
1Depto de Física, Universidad Católica del Norte, Casilla 1280, Antofagasta, Chile
email address correspondingauthor:

This work shows the enhancement of the antibacterial process by single crystals of TiO2-B nano-wires in comparison to anatase nano-particles.
The preparation ofthe single crystal of TiO2-B nano-wires was performed by one-step hydrothermal reaction at 130ºC among particles of pure anatase and NaOH aqueous solution by 6 days of reaction and calcined at 500ºCin air by 24h.
The monoclinic phase of titanium dioxide (TiO2-B) was characterized by Raman spectroscopy, atomic force microscopy (AFM), XRD, SEM and TEM. The antibacterial process of TiO2-Bnano-wires and anatase nano-particles was studied on pure culture of Escherichia Coli (E. coli), the results indicated that E. coli decrease faster for UV illuminated TiO2-B nanowires than UV illuminatedanatase nano-particles.
Antibacterial properties of TiO2-B nanowires allow new aplications on industrial field as air cleaner, paint revestiments. Also, it has application in medical industry asan antibacterial protection.

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Financial support from Departamento de Física of Universidad Católica del Norte is gratefully acknowledged. Acknowledge to...
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