Open air plasma deposited antimicrobial SiOx/TiOx composite films for biomedical applications

Open air atmospheric pressure plasma jet (APPJ) enhanced chemical vapour deposition process was used to deposit biocompatible SiO /TiO composite coatings. The as deposited films are hydrophilic and show visible light induced photocatalytic effect, which is a consequence of the formation of defects i...

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Published inCurrent directions in biomedical engineering Vol. 2; no. 1; pp. 43 - 47
Main Authors Rapp, Christin, Baumgärtel, Andreas, Artmann, Lucas, Eblenkamp, Markus, Asad, Syed Salman
Format Journal Article
LanguageEnglish
Published De Gruyter 01.09.2016
Subjects
antibacterial effect
APPJ
atmospheric pressure
biocompatibility
composite coatings
cytotoxicity
photocatalytic effect
plasma
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Summary:Open air atmospheric pressure plasma jet (APPJ) enhanced chemical vapour deposition process was used to deposit biocompatible SiO /TiO composite coatings. The as deposited films are hydrophilic and show visible light induced photocatalytic effect, which is a consequence of the formation of defects in the TiO structure due to the plasma process. This photocatalytic effect was verified by the demonstration of an antimicrobial effect under visible light on as well as by degradation of Rhodamine B. The films are non-cytotoxic as shown by the cytocompatibility tests. The films are conductive to cell growth and are stable in DMEM and isopropanol. The structural evaluation using SEM, EDS and XPS shows a dispersion of TiO phase in a SiO CyHz matrix. These analyses were used to correlate the structure-property relationship of the composite coating.
ISSN:2364-5504
DOI:10.1515/cdbme-2016-0013