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PLoS One. 2012;7(3):e33135. doi: 10.1371/journal.pone.0033135. Epub 2012 Mar 12.

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

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  • 1Department of Biomaterials and Bioinspired Materials, Materials Science Institute of Madrid (ICMM-CSIC), Cantoblanco, Madrid, Spain.

Abstract

The 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.

PMID:
22427967
PMCID:
PMC3299749
DOI:
10.1371/journal.pone.0033135
[PubMed - indexed for MEDLINE]
Free PMC Article
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