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- W3130238464 abstract "For bioabsorbable vascular scaffolds (BVS), thrombosis is an important clinical problem. Poly(lactic acid) (PLA), as a commonly used manufacturing material of BVS, is always facing thrombosis events in the early stage of BVS implantation, because of a lack of anticoagulant properties. Herein, we introduced carboxyl functional groups on the surface of PLA by photooxidation modification and then used NH2-PEG-NH2 as an intermediate to graft chondroitin sulfate (CS) onto PLA. Fourier transform infrared spectroscopy was used to verify the success of each step of the modification, and X-ray photoelectron spectroscopy was used as a further supplement. The methyl of PLA was oxidized to carboxyl by photooxidation, and the hydrophilicity of PLA surface was improved. CS made endothelial cells better adhere to PLA and resisted the adhesion of platelets. The results showed that the surface of PLA grafted with CS embodies the advantages of promoting endothelial cell adhesion and antiplatelet adhesion, providing a broader application prospect for the application of PLA in BVS." @default.
- W3130238464 created "2021-03-01" @default.
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- W3130238464 date "2021-02-19" @default.
- W3130238464 modified "2023-09-27" @default.
- W3130238464 title "Improved Antithrombogenicity of a Poly(lactic acid) Surface Grafted with Chondroitin Sulfate" @default.
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- W3130238464 doi "https://doi.org/10.1021/acsabm.0c01629" @default.
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