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 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 2 (03/2018) . - p. 437-443