Article ID Journal Published Year Pages File Type
8017736 Materials Letters 2015 10 Pages PDF
Abstract
In the study, the mechanical properties, degradation behavior and in vitro biocompatibility of an ultra-pure Zn and its mini-tube were evaluated with the high-pure Mg and its mini-tube as controls. Compared with high-pure Mg, ultra-pure Zn had close mechanical properties and cytotoxicity, but it indicated lower corrosion rate (0.011 mm/y) than pure Mg in Hank's solution. Meanwhile, the hematolysis rate (1.00%) was lower than 5%, which means that Zn has no significant destructive effect on erythrocyte. Furthermore, compared with plate specimens, the tube specimens showed higher corrosion rate (Zn ~0.028 to 0.037 mm/y and Mg ~0.61 to 0.73 mm/y, respectively) and hemocompatibility (Zn ~1.19% and Mg ~9.50%, respectively). In conclusion, the ultra-pure Zn mini-tubes might be considered as a potential bioabsorbable stent material.
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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