Bone-like apatite formation on HA/316L stainless steel composite surface in simulated body fluid
Bone-like apatite formation on HA/316L stainless steel composite surface in simulated body fluid
复制标题
模拟体液中HA/316L不锈钢复合材料表面骨状磷灰石的形成
DOI：
10.1016/s1003-6326(08)60276-9
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发表时间：
2009-04-01
影响因子：
4.5
通讯作者：
Ruan Jian-ming
中科院分区：
文献类型：
--
作者：
Fan Xin;Chen Jian;Ruan Jian-ming
采用热压工艺制备了HA/316L不锈钢(316L SS)生物复合材料。利用数字pH计、等离子体发射光谱仪、扫描电子显微镜和能谱仪分析了模拟体液(SBF)中生物复合材料表面类骨磷灰石的形成。结果表明，在浸泡过程中，SBF的pH值变化不大。表面磷灰石的形成是一个溶解-沉淀的动态过程。随着浸泡时间的延长，Ca、P离子浓度逐渐升高，然后趋于平衡。在复合材料表面形成类骨磷灰石层，具有良好的生物活性和良好的生物相容性，实现了骨整合，可为HA60/316L SS复合种植体与人体骨之间提供牢固的固定。
HA/316L stainless steel(316L SS) biocomposites were prepared by hot-pressing technique. The formation of bone-like apatite on the biocomposite surfaces in simulated body fluid(SBF) was analyzed by digital pH meter, plasma emission spectrometer, scanning electron microscope(SEM) and energy dispersive X-ray energy spectrometer(EDX). The results indicate that the pH value in SBF varies slightly during the immersion. It is a dynamic process of dissolution-precipitation for the formation of apatite on the surface. With prolonging immersion time, Ca and P ion concentrations increase gradually, and then approach equilibrium. The bone-like apatite layer forms on the composites surface, which possesses benign bioactivity and favorable biocompatibility and achieves osseointegration, and can provide firm fixation between HA60/316L SS composite implants and human body bone.