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Glass-(nAg, nCu) biocide coatings on ceramic oxide substrates

AuthorsEsteban-Tejeda, Leticia ; Malpartida Romero, Francisco; Díaz, Luis A. ; Torrecillas, Ramón ; Rojo, Fernando; Moya, J. S.
Issue Date2012
PublisherPublic Library of Science
CitationPLoS ONE 7(3): e33135 (2012)
AbstractThe present work was focused on obtaining biocide coatings constituted by a glassy soda-lime matrix containing silver or copper nanoparticles on ceramic (alumina and zirconia based) substrates. Both glassy coatings showed a high biocide activity against Gram-, Gram+ bacteria and yeast, reducing cell numbers more than three logarithms. Silver nanoparticles had a significantly higher biocide activity than copper nanoparticles, since the lixiviation levels required to reduce cell numbers more than 3 logarithms was of almost 1-2 μg/cm 2 in the case of silver nanoparticles, and 10-15 μg/cm 2 for the copper nanoparticles.
Publisher version (URL)http://dx.doi.org/10.1371/journal.pone.0033135
Identifiersdoi: 10.1371/journal.pone.0033135
issn: 1932-6203
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