Bioactivity Study of Barium Titanate Films Prepared by Micro-arc Oxidation

Chinese Journal of Materials Research

2013, Vol. 27

Issue (5): 549-555 DOI:

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Bioactivity Study of Barium Titanate Films Prepared by Micro-arc Oxidation

ZHAO Xiaoyun¹ WANG Xinhua²

1. Mechanical and Electrical Engineering College, Ningbo Dahongying University, Ningbo 315175
2. Zhengzhou Research Institute of Mechanical Engineering, Zhengzhou 450052

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ZHAO Xiaoyun, WANG Xinhua. Bioactivity Study of Barium Titanate Films Prepared by Micro-arc Oxidation. Chinese Journal of Materials Research, 2013, 27(5): 549-555.

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Abstract Barium titanate (BaTiO₃) films were grown on the titanium alloy by micro-arc oxidation (MAO). The bioactivity of BaTiO₃ films after polarized was discussed. It was studied on the induced mechanism of HA formation. The results show that the bioactivity of BaTiO₃ films after polarization was obviously improved. In the SBF, the inducibility of BaTiO₃ films was higher than BaTiO₃ ceramics block, which was connected with polarity of BaTiO₃ films, rough and porous surface morphology, high surface area, and nanocrystalline characteristics. The cytotoxicity test showed that BaTiO₃ films prepared by MAO had good biocompatibility, the cytotoxicity of BaTiO₃ films were less than or equal 1, which accord with the clinical requirements. The films prepared at high voltage had higher cell proliferation ratio than those prepared at low voltage.

Key words: inorganic non-metallic materials micro-arc oxidation barium titanate bioactivity polarization cytotoxicity

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