%0 Journal Article
%T Comparison of Structure and Properties of TiO2 Films Synthesized by Sol-Gel and Ion beam on Biomedical NiTi Alloy<br>医用金属表面溶胶-凝胶法和离子束合成TiO2薄膜的结构、性能比较
%A LIU Jing-Xiao
%A YANG Da-Zhi
%A SHI Fei
%A CAI Ying-Ji
%A <br>刘敬肖
%A 杨大智
%A 史非
%A 蔡英骥
%J 无机材料学报
%D 2002
%I Science Press
%X In order to improve the biocompatibility of NiTi alloy, TiO2 films were synthesized on the surface by sol-gel and Ion beam enhanced deposition (IBED) methods, respectively. The structure, surface morphology and composition of the films were studied comparatively by X-ray diffraction (XRD), atomic force microscopy (AFM) and X-ray photoelectron spectra (XPS). The electrochemical corrosion measurement shows that the two kinds of TiO2 films both can improve the corrosion resistance of metallic biomaterials in simulated body fluid as a protective layer on the surface. In order to further improve the anticoagulation of implants, immobilization of heparin molecule on the film surface was also investigated. The results indicate that sol-gel-derived TiO2 film can obtain better heparin immobilization effects than Ion beam derived TiO2 film.
%K sol-gel
%K IBED
%K TiO2 film
%K heparin immobilization<br>溶胶－凝胶法
%K 离子束合成
%K TiO2薄膜
%K 肝素
%K 固定
%K 结构
%K 性能
%K 药物载体
%K 医用金属材料
%K 生物陶瓷膜
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=DBE9CA68E0BFEBCB&yid=C3ACC247184A22C1&vid=BCA2697F357F2001&iid=E158A972A605785F&sid=97747634025A5F36&eid=1F94F38CF0FA5258&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=4&reference_num=9