[Study on surface modification and biocompatibility of NiTi alloy intravascular stents].
This paper introduces the surface modification of NiTi alloy intravascular stents for roughness by chemical erosion and plasma deposition technology. The stent which had been granulated with chemical erosion was treated with TiO2 film prepared with Gel-sol. The study on the biocompatibility of the modified stent by the above two ways shows that the modified stent is rougher, and its anticoagulation and hydrophilicity are improved. However, the capability of erosion resistance is not enhanced significantly.
Shen
Yang
Y
Bioengineering College of Chongqing University and the State Key Lab. on Biomechanics & Tissue Engineering of the Education Ministry, Chongqing.
Wang
Gui-xue
GX
Quan
Xue-jun
XJ
Yu
Qing-song
QS
D000497:Alloys; D015906:Angioplasty, Balloon, Coronary / Q000295:instrumentation*; D001672:Biocompatible Materials; D009532:Nickel; D015607:Stents; D013499:Surface Properties; D014025:Titanium
D000497:Alloys; D001672:Biocompatible Materials; C009495:titanium dioxide; D009532:Nickel; D014025:Titanium