Abstract
The Staphylococcus epidermidis biofilm formation on titanium or titanium alloy, coated with TiN, SiO 2–TiO 2 and electrodeposited hydroxyapatite, was tested. Surfaces of titanium, Ti6Al4V alloy or TiN, modified with SiO 2–TiO 2 layer, were found to be highly resistant to bacterial adhesion. Only small amounts of bacterial cells were observed on matrices coated by thin hydroxyapatite films, deposited on both SiO 2–TiO 2 and TiN + SiO 2–TiO 2 interlayers. Biological tests showed that the biofilm formed massively on polished and ground titanium and titanium alloy surfaces, also those covered with TiN, but not on those modified with SiO 2–TiO 2 nanofilm.
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