Dou Jinhe, You Qiongya, Gu Guochao, Chen Chuanzhong, Zhang Xihua
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Ji'nan 250061, Shandong, People's Republic of China.
Biointerphases. 2016 Sep 20;11(3):031006. doi: 10.1116/1.4959127.
Calcium phosphate coatings were prepared on the surface of self-designed Mg-Zn-Ca-Mn alloy using microarc oxidization technology. To characterize the microstructures, cross-section morphologies, and compositions of the coatings, the authors used scanning electron microscopy equipped with an energy-disperse spectrometer, x-ray diffraction, and Fourier transform infrared spectroscopy. Potentiodynamic polarization in the simulated body fluid (SBF) was used to evaluate the corrosion behaviors of the samples. An SBF immersion test was used to evaluate the coating bioactivity and degradability. After the immersion tests, some bonelike apatite formed on the coating surfaces indicate that bioactivity of the coatings is excellent. The coating prepared in electrolyte containing (NaPO3)6 had slower degradation rate after immersion test for 21 days.
采用微弧氧化技术在自行设计的Mg-Zn-Ca-Mn合金表面制备磷酸钙涂层。为了表征涂层的微观结构、横截面形貌和成分，作者使用了配备能谱仪的扫描电子显微镜、X射线衍射仪和傅里叶变换红外光谱仪。通过在模拟体液（SBF）中进行动电位极化来评估样品的腐蚀行为。采用SBF浸泡试验来评估涂层的生物活性和降解性。浸泡试验后，涂层表面形成了一些类骨磷灰石，表明涂层具有优异的生物活性。在含有(NaPO3)6的电解液中制备的涂层在浸泡21天后降解速率较慢。
