Surface characteristics and hemocompatibility of modified NiTi alloy intravascular stents

Yaru Ni, Hairong Huang, Chunhua Lu, Junkai Xue, Zongzi Xu

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

TiO2, ZrO2 and titanium oxide in deficiency oxygen environment were used to modify the surface of biomedical NiTi stents. The coatings were prepared by vacuum deposition. The surface microstructures and characteristics, blood compatibility of the modified stents in simulated body fluids were assessed using scanning electron microscopy (SEM), hemolysis test, coagulation test and blood platelet adhesion test. The hemocompatiblity of the modified stents were all improved by layer coating. Enhancement of blood compatibility was believed to stem from the improved surface water affinity and hemolysis resistance of the layer, and titanium oxide in deficiency oxygen environment displayed better. This study indicated that layer coating was a promising effective modification method for improving the surface properties of biomedical NiTi alloy intravascular stents. As a coating materials, titanium oxide in deficiency oxygen environment was better than TiO2 and ZrO2.

源语言英语
主期刊名Materials Research
编辑Zhongwei Gu, Zhongwei Gu, Zhongwei Gu, Yafang Han, Yafang Han, Yafang Han, Fusheng Pan, Fusheng Pan, Fusheng Pan, Fusheng Pan, Fusheng Pan, Fusheng Pan, Xitao Wang, Xitao Wang, Xitao Wang, Duan Weng, Duan Weng, Duan Weng, Shaoxiong Zhou, Shaoxiong Zhou, Shaoxiong Zhou
出版商Trans Tech Publications Ltd
1082-1089
页数8
ISBN(印刷版)9780878493401, 9780878493401, 9780878493401
DOI
出版状态已出版 - 2009
活动MRS International Materials Research Conference, IMRC 2008 - Chongqing, 中国
期限: 9 6月 200812 6月 2008

出版系列

姓名Materials Science Forum
610-613
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议MRS International Materials Research Conference, IMRC 2008
国家/地区中国
Chongqing
时期9/06/0812/06/08

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