Ti合金表面沉积羟基磷灰石-牛血清蛋白生物活性涂层

Fabricating bioactive coating on Ti alloys by co-deposition of BSA and apatite

通过仿生生长方法,将预处理后的钛片浸入到添加有牛血清蛋白的模拟体液中,使钙磷盐和牛血清蛋白(BSA)共沉积到钛合金的表面,制备生物活性涂层。利用SEM、XRD、红外光谱等对涂层进行了表征,结果表明:BSA通过化学作用和钙磷盐共沉积到基体的表面,并且BSA具有细化涂层晶粒的作用。

This work is mainly attributed to fabricate bioactive coatings on the surface of Ti by adding BSA（bovine serum albumin） into SBF （simulated body fluid）, so BSA and apatite can incorporate on Ti. The coatings were analyzed with scanning electron microscopy（SEM）, X-ray diffraction （XRD） and IR spectra. The results show that BSA and apatite incorporate on the surface of Ti by chemical reactions and the crystallite size of coating reduced with the addition of BSA proteins.