Cubic mesoporous silica thin films were synthesized on pure titanium by dip-coating method and then their bioactivity were evaluated through the induced deposition of bone-like carbonated hydroxyapatite(CHA) layer in vitro. The composition, microstructure and morphology of the films were characterized by small-angel X-ray diffraction, Fourier transform infrared spectrum, nitrogen adsorption, electron microscopes and energy dispersive spectroscopy, etc. The surface Zeta potential of the films was investigate...