Preparation, characterizations, and antibacterial properties of Cu/SnO2 nanocomposite bilayer coatings / Takuya Fukumura in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 2 (03/2018)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 2 (03/2018) . - p. 437-443 Titre : Preparation, characterizations, and antibacterial properties of Cu/SnO2 nanocomposite bilayer coatings Type de document : texte imprimé Auteurs : Takuya Fukumura, Auteur ; Ekambaran Sambandan, Auteur ; Hiromi Yamashita, Auteur Année de publication : 2018 Article en page(s) : p. 437-443 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens Cuivre Dioxyde d'étain Photocatalyse Pulvérisation cathodique Revêtements multicouches Index. décimale : 667.9 Revêtements et enduits Résumé : A nano-bilayer structure consisting of copper and SnO2 nanocomposites was prepared by a magnetron sputtering method. A nano-SnO2 thin layer with a thickness of 52 nm was achieved on quartz glass. A nano-copper layer was then deposited on top of the SnO2 thin layer by the sputtering method. The thickness of the nano-copper layer was approximately 7 nm, such that the SnO2 layer was not only completely covered by the copper layer but it also resulted in transparent bilayer films. Post-annealing was carried out at 400°C in air for 1 h to obtain a crystalline SnO2 phase and simultaneously the copper layer was oxidized to CuO. Sputtered nanocomposites of CuO/SnO2 bilayer films showed a synergistic effect toward E. coli inactivation under indoor light exposure. A possible mechanism for the synergistic effect with respect to the antibacterial properties of CuO/SnO2 bilayer nanocomposites has been proposed. Incorporating CuO onto the SnO2 layer achieves photocatalyst works under indoor light and provides an antimicrobial function even under a dark environment by the antimicrobial property of CuO itself. Reported CuO/SnO2 sputter coating can be useful to apply, for instance, to electric devices such as touch panel displays in a hospital in order to reduce hospital-acquired infections (HAIs). Note de contenu : - EXPERIMENTAL DETAILS : Sputtering of Cu/SnO2 nanocomposite bilayers - Evaluation of antimicrobial activities - RESULTS AND DISCUSSION : Merits of nano-SnO2 thin films - ESCA and powder XRD of nano-SnO2 thin films - Antimicrobial effect of sputtered Cu/SnO2 nanocomposite bilayer films - Proposed Cu/SnO2 nanocomposite bilayer structures - Proposed synergetic effect of CuO/SnO2 nanocomposite bilayer - DOI : 10.1007/s11998-017-0017-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-0017-4.pdf Format de la ressource électronique : pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30302 [article]

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