Qing Zhu, Ping Ye, Fang Guo, Yimen Zhu, Wenbin Nan, Zhaohua Chang
Journal of biomaterials applications 2022 FebIn this study, the surface of the covered stent was treated by plasma technology to introduce amino functional groups, and glutaraldehyde and heparin were successfully grafted to prepare a heparin-functionalized covered stent (HPLCS). The preparation parameters such as plasma treatment power, plasma treatment time, concentration of glutaraldehyde and heparin, and pH of heparin solution were studied in detail. The functionalized heparin covered stent can make the titer of heparin reach 1.23 ± 0.03 IU/cm2. In animal experiments, after implantation in pigs for 6 months, the titer of heparin can still reach 0.93 ± 0.05 IU/cm2. This work provides a good method for preparing heparin covered stent.
Qing Zhu, Ping Ye, Fang Guo, Yimen Zhu, Wenbin Nan, Zhaohua Chang. A heparin-functionalized covered stent prepared by plasma technology. Journal of biomaterials applications. 2022 Feb;36(7):1243-1253
PMID: 34672223
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