Innovative High-Surface-Area CuO Pretreated Cotton Effective in Bacterial Inactivation under Visible Light

This study presents the first report on enhanced bacterial inactivation of E. coli by RF-plasma pretreated cotton with high-surface-area CuO powders compared with nonpretreated cotton textiles. The high-surface-area CuO (65 m/g) powder was fully characterized. The E. coli inactivation proceeded in t...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2010-09, Vol.2 (9), p.2547-2552
Main Authors: Torres, A, Ruales, C, Pulgarin, C, Aimable, A, Bowen, P, Sarria, V, Kiwi, J
Format: Article
Language:English
Subjects:
Anti-Bacterial Agents - administration & dosage
Anti-Bacterial Agents - chemistry
Coated Materials, Biocompatible - chemistry
Copper - administration & dosage
Copper - chemistry
Cotton Fiber - methods
Escherichia coli - drug effects
Escherichia coli - radiation effects
Light
Materials Testing
Surface Properties
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Summary:This study presents the first report on enhanced bacterial inactivation of E. coli by RF-plasma pretreated cotton with high-surface-area CuO powders compared with nonpretreated cotton textiles. The high-surface-area CuO (65 m/g) powder was fully characterized. The E. coli inactivation proceeded in the dark and was accelerated under visible and sunlight irradiation even at very low levels of visible light irradiation. The effect the RF-plasma pretreatment of the cotton on the binding of CuO, applied light dose, the amount of CuO loading and initial E. coli concentration on the inactivation kinetics of E. coli is reported in detail.
ISSN:1944-8244
1944-8252
DOI:10.1021/am100370y