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Si-incorporated TiO 2 nanopores films were prepared by anodization and silicon plasma immersion ion implantation. The microstructure and phase composition of the films were investigated by scanning electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The hydrophilicity of the films was evaluated using water contact angle measurement and MG63 cells were cultured on the films to investigate the cytocompatibility. The results showed that the concentration and depth of silicon on the Si-incorporated TiO 2 nanopores films increased with the duration time of implantation. Both the as-annealed and Si-incorporated nanopores films exhibited good hydrophilicity and cytocompatibility, while the TiO 2 nanopores films implanted silicon for 1.0 h showed higher proliferation rate and vitality of MG63 cells than others, indicating a great potential application for titanium implants. [ABSTRACT FROM AUTHOR]

Silicon incorporated titania (Si–TiO2) films were prepared on titanium substrates by plasma immersion ion implantation and deposition (PIII&D) using filtered Ti and Si cathodic arc sources in oxygen atmosphere. The as-deposited films were further annealed at 400°C, 600°C and 800°C for 2h in air. The microstructure and phase composition of the films were investigated by field emission scanning electron microscopy, atomic force microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and Raman spectroscopy. The hydrophilicity of the film was illustrated using water contact angle measurement and the in vitro bioactivity was evaluated by simulated body fluid immersion test. Pure titania (TiO2) film was also parallelly studied for comparison. The results show that the grain size of TiO2 and Si–TiO2 films increases and their hydrophilicity is enhanced with the increase of annealing temperature, while the Si–TiO2 film exhibits smaller grain and better hydrophilicity than TiO2 film. The bioactivity of the Si–TiO2 film is also better than that of TiO2 film. Moreover, the 600°C-annealed Si–TiO2 film possesses best bioactivity, which is thought to result from the existence of anatase phase and nanoscale grains. [ABSTRACT FROM AUTHOR]