Plasma enhanced chemical vapor deposited silicon coatings on Mg alloy for biomedical application

被引：30

作者：

Li, M. ^{[1
]}

Cheng, Y. ^{[1
]}

Zheng, Y. F. ^{[1
,2
]}

Zhang, X. ^{[1
]}

Xi, T. F. ^{[1
]}

Wei, S. C. ^{[1
,3
]}

机构：

[1] Peking Univ, Acad Adv Interdisciplinary Studies, Ctr Biomed Mat & Tissue Engn, Beijing 100871, Peoples R China

[2] Peking Univ, Coll Engn, Dept Adv Mat & Nanotechnol, Beijing 100871, Peoples R China

[3] Peking Univ, Sch & Hosp Stomatol, Dept Oral & Maxillofacial Surg, Beijing 100871, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2013年 / 228卷

关键词：

PECVD; Si coating; Mg alloy; Corrosion; Biocompatibility; Hemolysis; MAGNESIUM; CORROSION; SURFACE; OXIDATION; SI;

D O I：

10.1016/j.surfcoat.2012.05.128

中图分类号：

TB3 [工程材料学];

学科分类号：

082905 [生物质能源与材料];

摘要：

Amorphous Si film was prepared by plasma enhanced chemical vapor deposition (PECVD) of SiH4 on WE43 alloy for biomedical application. The microstructure and the composition of the film were investigated by glancing angle X-ray diffraction (GAXRD), X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES), respectively. The immersion test indicated that Si film could efficiently slow down the degradation rate of WE43 alloy in simulated body fluid (SBF) at 37+/-1 degrees C. MTT assay suggested that the extract of the Si coated WE43 alloys was harmless to murine fibroblast cells (L 929). Hemolysis test and blood platelets adhesion test were conducted, and the results show that the hemolysis of WE43 alloy decreased after being coated by Si and the platelets attached on the Si film were at the inactivated stage with a round shape. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：S262 / S265

页数：4

共 30 条

[1]

CHEMICAL-STATES STUDY OF SI IN SIOX FILMS GROWN BY PECVD [J].