Effect of an environmentally friendly electrolyte on the biocompatibility of nickel–titanium alloy cardiovascular stents

Nitinol has become the optimal candidate material for the manufacture of cardiovascular stents because of its unique shape memory effect, good biocompatibility, superelasticity, low density and corrosion resistance. However, the surface quality of the stent after laser cutting is poor, which will se...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied electrochemistry 2022-09, Vol.52 (9), p.1409-1418
Main Authors: Wang, Yongqi, Wei, Xiuting, Li, Zhiyong, Jing, Xuemin, Gong, Zhikang
Format: Article
Language:English
Subjects:
Biocompatibility
Chemistry
Chemistry and Materials Science
Corrosion
Corrosion effects
Corrosion resistance
Electrochemistry
Electropolishing
Health hazards
Hydrophobicity
Industrial Chemistry/Chemical Engineering
Inflammatory response
Laser beam cutting
Materials selection
Nickel base alloys
Nickel titanides
Physical Chemistry
Research Article
Shape effects
Shape memory alloys
Stents
Superelasticity
Surface properties
Surface roughness
Titanium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Nitinol has become the optimal candidate material for the manufacture of cardiovascular stents because of its unique shape memory effect, good biocompatibility, superelasticity, low density and corrosion resistance. However, the surface quality of the stent after laser cutting is poor, which will seriously affect the function of the cardiovascular stent and human metabolism and cause health hazards. This work aims to investigate the effect of an environmentally friendly electrolyte on the surface morphology and biocompatibility of nickel–titanium alloy cardiovascular stents. The surface roughness, corrosion resistance, hydrophobicity and release of nickel ions of the stent were studied by electrolytic polishing. Results show that the performance of the stent has been greatly improved, which helps in minimizing the adverse inflammatory response and restenosis. Graphical abstract
ISSN:0021-891X
1572-8838
DOI:10.1007/s10800-022-01711-z