Nano-hydroxyapatite/ZnO coating prepared on a biodegradable Mg–Zn–Ca bulk metallic glass by one-step hydrothermal method in acid situation
Nano-hydroxyapatite/ZnO coating prepared on a biodegradable Mg–Zn–Ca bulk metallic glass by one-step hydrothermal method in acid situation
复制标题
酸性条件下一步水热法在可生物降解Mg-Zn-Ca块体金属玻璃上制备纳米羟基磷灰石/ZnO涂层
DOI：
10.1016/j.ceramint.2019.11.074
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发表时间：
2020-04
影响因子：
5.2
通讯作者：
Fanrong Ai
中科院分区：
文献类型：
--
作者：
Jie Zhou;Ke Li;Biao Wang;Fanrong Ai
采用快速凝固法制备了直径为4 mm的镁锌钙镁合金。在保证基质无定形结构的前提下，采用简单的一步水热法制备了厚度为16μm、多层结构的纳米羟基磷灰石/氧化锌复合涂层。采用X射线衍射仪、扫描电子显微镜、能谱分析和电化学测试等手段对HA/ZnO涂层BMG的微观结构、元素分布和耐蚀性进行了分析。水热处理后，在BMG表面生长出结晶度较高的纳米HA晶须。与纯镁和未涂层的BMG相比，HA/ZnO涂层的BMG在SBF中的耐蚀性有了很大的提高。由于涂层中氧化锌的存在，BMG的体外抗菌率接近100%。因此，纳米羟基磷灰石/氧化锌包覆骨基质具有良好的生物相容性和优异的耐腐蚀性。纳米羟基磷灰石/氧化锌涂层骨基质作为一种临时医用植入物，具有广阔的应用前景。
Mg68Zn28Ca4BMG with 4 mm diameter was prepared by rapid solidification process. On the premise of guaranteeing the amorphous structure of the matrix, a dense nano-HA/ZnO coating with 16 μm thickness and multilayer structure was prepared on the surface of BMG by a simple one-step hydrothermal method in acid situation. The microstructure, element distribution and corrosion resistance of HA/ZnO coated BMG were analyzed by XRD, SEM, EDS and electrochemical measurements. After hydrothermal treatment, nano-HA whisker with high crystallinity was grown on the surface of BMG. Comparing with pure Mg and BMG without coating, the corrosion resistance of BMG with HA/ZnO coating in SBF was greatly improved. Due to the presence of ZnO in the coating, the in vitro antibacterial rate of BMG is close to 100%. Hence, nano-HA/ZnO coated BMG exhibits good biocompatibility and outstanding corrosion resistance. As a temporary medical implant, nano-HA/ZnO coated BMG has prospective application.
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影响因子：
5.6
作者：
Brie IC;Soritau O;Dirzu N;Berce C;Vulpoi A;Popa C;Todea M;Simon S;Perde-Schrepler M;Virag P;Barbos O;Chereches G;Berce P;Cernea V
通讯作者：
Cernea V
影响因子：
14
作者：
Y. Yang;K. Kim;J. Ong
通讯作者：
Y. Yang;K. Kim;J. Ong
可生物降解的 Mg-Zn-Ca-Sr 大块金属玻璃，具有增强的腐蚀性能，适用于生物医学应用
影响因子：
8.4
作者：
Li, Haifei;Pang, Shujie;Zhang, Tao
通讯作者：
Zhang, Tao
影响因子：
3.5
作者：
Chen, Shuangshuang;Tu, Jianxin;Zeng, Xierong
通讯作者：
Zeng, Xierong
影响因子：
8.6
作者：
Yamashita, K;Oikawa, N;Umegaki, T
通讯作者：
Umegaki, T