Maury, Francis and Mungkalasiri, Jitti and Bedel, Laurent and Emieux, Fabrice and Dore, Jeanne and Renaud, François N. R. Comparative study of antibacterial efficiency of M-TiO2 (M = Ag, Cu) thin films grown by CVD. (2014) Key Engineering Materials, 617. 127-130. ISSN 1662-9795
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(Document in English)
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Official URL: http://dx.doi.org/10.4028/www.scientific.net/KEM.617.127
Abstract
M-TiO2 (M = Ag, Cu) nanocomposite layers were grown by pulsed direct liquid injection chemical vapor deposition (DLICVD) on various substrates to produce bactericidal surfaces with long term activity. Monodisperse Ag nanoparticles (NPs) with an average size of 5-10 nm are embedded in an anatase matrix. A bactericidal behavior determined by the JIS Z 2801 standard test was found for Ag-TiO2 films for Ag ≤ 1 at. % and above. Higher Ag content is not necessary since efficiency is already at its maximum (relative activity 100%). By contrast, using Cu as antibacterial agent, a larger size distribution of metal particles was found (20 to 400 nm). Cu-TiO2 films exhibit a bactericidal behavior if their thickness is higher than 100 nm and Cu content ≥ 3.5 at. %. These coatings are still antibacterial after 5 months of aging and their efficiency has decreased by only 35%.
Item Type: | Article |
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Additional Information: | Thanks to Trans Tech Publications editor. The definitive version is available at http://www.scientific.net The original PDF of the article can be found at Scientific.net website : http://www.scientific.net/KEM.617.127 |
HAL Id: | hal-01172521 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE) Other partners > Université Claude Bernard-Lyon I - UCBL (FRANCE) |
Laboratory name: | |
Statistics: | download |
Deposited By: | cirimat webmestre |
Deposited On: | 07 Jul 2015 13:06 |
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