为了获得具有较高生物活性和良好生物矿化性能的生物活性材料,以正硅酸乙酯(TEOS)及磷酸三乙酯(TEP)为前驱体,硝酸钙(CN)为添加剂,盐酸为催化剂,在不同水与醇盐物质的量比(R)条件下,采用溶胶-凝胶法制备了CaO-P2O5-SiO2系统生物活性玻璃.利用生物活性材料的体外评价方法及FTIR、XRD、SEM测试技术对样品的结构和生物活性进行了分析研究.结果表明:经模拟体液(SBF)浸泡后, 随着水解度的增大,其表面羟基磷灰石层的形成能力逐渐减弱.
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