Title Bacterial adhesion on biomedical surfaces covered by micrometric silver Islands
Authors Pérez-Tanoira R. , Pérez-Jorge C. , ENDRINO ARMENTEROS, JOSÉ LUIS, Gómez-Barrena E. , Horwat D. , Pierson J.F. , Esteban J.
External publication Si
Means J. Biomed. Mater. Res. Part A
Scope Article
Nature Científica
JCR Quartile 1
SJR Quartile 1
JCR Impact 2.83400
SJR Impact 1.24600
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-84859723081&doi=10.1002%2fjbm.a.34090&partnerID=40&md5=9fc9af567f1382cdcd8d5de5c5a05abb
Publication date 01/01/2012
ISI 000302610800016
Scopus Id 2-s2.0-84859723081
DOI 10.1002/jbm.a.34090
Abstract A set of Cu-Mn-O and Ag-Cu-Mn-O films were sputter-deposited onto polished Ti-6Al-4V coupons and the microbiological adherence of Staphylococcus sp. was studied in these biomedical surfaces modified by using advanced ternary and quaternary oxides, these latter incorporated micrometric silver islands. Silver is known to have a natural biocidal character and its presence in the surface of Ti-6Al-4V forming large micrometric islands. In principle, predicted to enhance the antimicrobial properties of biomedical surfaces. Microbial adhesion tests were performed using collection strains and six clinical Staphylococcus aureus and Staphylococcus epidermidis strains. The adherence study was performed using a previously published protocol by Kinnari et al. Collection strains and clinical strains showed decreased adherence to modified materials; however, only on the clinical strains were there statistically significant differences between Cu-Mn-O and Ag-Cu-Mn-O containing silver islands. Nanocrystalline silver dissolves and releases both Ag + and Ag 0 whereas other silver sources release only Ag+. We can conclude that nanocrystalline silver coating, confirmed by XRD, appears to alter the biological properties of the solution, particularly antimicrobial activity. Copyright © 2012 Wiley Periodicals, Inc.
Keywords Anti-microbial activity; Antimicrobial property; Bacterial adhesion; Biocidal; Biological properties; Biomedical surfaces; Clinical strains; Microbial adhesion; Nanocrystalline silver; Quaternary oxid
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