文献类型：期刊文献

英文题名：Properties of Titanium Oxide Coating on MgZn Alloy by Magnetron Sputtering for Stent Application

作者：Hou, Shusen[1,2];Yu, Weixin[2];Yang, Zhijun[2];Li, Yue[2];Yang, Lin[1];Lang, Shaoting[2]

第一作者：侯树森;Hou, Shusen

通讯作者：Yang, L[1]

机构：[1]Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China;[2]Xinxiang Univ, Sch Mech & Elect Engn, Xinxiang 453003, Henan, Peoples R China

第一机构：Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China

通讯机构：[1]corresponding author), Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China.

年份：2020

卷号：10

期号：10

起止页码：1-10

外文期刊名：COATINGS

收录：;Scopus(收录号：2-s2.0-85093832505);WOS:【SCI-EXPANDED(收录号:WOS:000584090100001)】；

基金：The research was funded by the Henan Center for Outstanding Overseas Scientists (grant no. GZS2018003), Key Scientific Research Projects of Colleges and Universities in Henan Province (grant no. 19B430008), and National Natural Science Foundation of China (grant no. 51801171).

语种：英文

外文关键词：titanium oxide; magnetron sputtering; magnesium alloy; corrosion resistance; biocompatibility

摘要：Constructing surface coatings is an effective way to improve the corrosion resistance and biocompatibility of magnesium alloy bioabsorbable implants. In this present work, a titanium oxide coating with a thickness of about 400 nm was successfully prepared on a MgZn alloy surface via a facile magnetron sputtering route. The surface features were characterized using scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and the contact angle method. The corrosion behavior and biocompatibility were evaluated. The results indicated that the amorphous TiO2 coating with a flat and dense morphology was obtained by magnetron-sputtering a titanium oxide target. The corrosion current density decreased from 1050 (bare MgZn alloy) to 49 mu A/cm(2) (sample with TiO2 coating), suggesting a significant increase in corrosion resistance. In addition, the TiO2 coating showed good biocompatibilities, including significant reduced hemolysis and platelet adhesion, and increased endothelial cell viability and adhesion.