Silver nanocluster/silica composite coatings obtained by sputtering for antibacterial applications

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Abstract

Silver nanocluster silica composite coatings were deposited by radio frequency co-sputtering technique on several substrates. This versatile method allows tailoring of silver content and antibacterial behaviour of coatings deposited on glasses, ceramics, metals and polymers for several applications. Coating morphology and composition as well as nanocluster size were analyzed by means of UV-Visible absorption, X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), electron dispersive spectroscopy (EDS), X-ray Photoelectron Spectroscopy (XPS) and Atomic Force Microscopy (AFM). The antibacterial effect was verified through the inhibition halo test against standard bacterial strain, Staphylococcus aureus, before and after sterilization process. Tape test demonstrated a good adhesion of the coatings to the substrates. © Published under licence by IOP Publishing Ltd.

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Ferraris, M., Balagna, C., Perero, S., Miola, M., Ferraris, S., Baino, F., … Vernè, E. (2012). Silver nanocluster/silica composite coatings obtained by sputtering for antibacterial applications. In IOP Conference Series: Materials Science and Engineering (Vol. 40). https://doi.org/10.1088/1757-899X/40/1/012037

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