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首页> 外文会议>2001 TMS Annual Meeting on Structural Biomaterials for the 21st Century, Feb 11-12, 2001, New Orleans, LA >METALLIC BIOMATERIALS IN BODY FLUID AND THEIR SURFACE MODIFICATION
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METALLIC BIOMATERIALS IN BODY FLUID AND THEIR SURFACE MODIFICATION

机译：体液中的金属生物材料及其表面修饰

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摘要

Surface oxide films on metallic materials play an important role not only as an inhibitor of corrosion but also as a factor governing biocompatibility. In this paper, the composition of surface oxide film on metallic biomaterials and their change in human body were reviewed with empirical data. Metal ion dissolution from the materials was also considered. In particular, preferential release of specific elements from materials under wear was considered. Released metal ions do not always combine with biomolecules to appear toxicity because active ion immediately combine with a water molecule or an anion near the ion to form an oxide, hydroxide, salt, or complex. In addition, surface modification techniques to improve corrosion and wear resistances and bone conductivity were reviewed. Effect of calcium ion implantation into titanium for improvement of its bone conductivity is given as an example.
机译：金属材料上的表面氧化膜不仅起腐蚀抑制剂的作用，而且还起着控制生物相容性的作用。本文利用经验数据综述了金属生物材料表面氧化膜的组成及其在人体中的变化。还考虑了金属离子从材料中的溶解。特别地，考虑了在磨损下从材料中优先释放特定元素。释放的金属离子并不总是与生物分子结合会出现毒性，因为活性离子会立即与水分子或离子附近的阴离子结合形成氧化物，氢氧化物，盐或络合物。此外，还对表面改性技术进行了改进，以提高其耐腐蚀和耐磨性以及骨骼导电性。以钙离子植入钛中以改善其骨传导性的效果为例。

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