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[References: 11 tit.]

We have studied the feasibility of improving the functionality of composite titanium implants by modifying their oxidized surface with the aim of imparting it bioactive properties. The growth of a structured calcium silicophosphate layer on an oxidized titanium surface by a sol-gel process has been shown to significantly change its morphology, ensuring porosity and a specific surface area as large as 18.0 ± 0.5 m2/g. Owing to the sol-gel derived film, the surface of the titanium coating acquires hydrophilicity, as well as adsorption and chemical activity, due to surface centers having an excess charge: SiO-Hδ+ and Si-OHδ-. Interaction of the surface with an SBF solution leads to the formation of amorphous and crystalline calcium phosphates on it. Our results suggest that oxidized titanium implants coated with a sol-gel derived film will exhibit bioactive behavior under the conditions of a living organism.