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Highly bioactive silver and silver/titania composite films grown by chemical vapour deposition

Paper ID Volume ID Publish Year Pages File Format Full-Text
29327 44154 2007 11 PDF Available
Title
Highly bioactive silver and silver/titania composite films grown by chemical vapour deposition
Abstract

This paper describes how photocatalytically active films of TiO2, grown by thermal CVD, may be functionally and structurally modified by deposition of nano-structured silver via a novel flame assisted CVD process. The resulting composite films are shown to be highly durable, highly photocatalytically active and are also shown to possess strong antibacterial behaviour.The deposition control, arising from the described approach, offers the potential to control the film nanostructure, which is proposed to be crucial in determining the photo and bio-activity of the combined film structure, and the transparency of the composite films.Furthermore, we show that the resultant films also exhibit “self-regeneration” capability, in that they both kill bacteria present on the film surface and then photo-degrade the residues. Such a dual action significantly reducing the problems of surface deactivation due to build up of contamination.These properties are especially significant when combined with the well-known durability of CVD deposited thin films, offering new opportunities for enhanced application in areas where bioactive surface functionality is sought.

Keywords
CVD; Chemical vapour deposition; FACVD; Flame assisted CVD; Bioactive thin films; Photoactivity
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Highly bioactive silver and silver/titania composite films grown by chemical vapour deposition
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 187, Issue 1, 5 March 2007, Pages 53–63
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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