药物洗脱支架（drug-eluting stents,DES）是目前冠心病介入治疗的主要选择,与裸金属支架（bare metal stents,BMS）比较,DES明显减少支架植入后再狭窄及靶血管再次血运重建,明显提高介入治疗的有效性。然而,第一代DES的永久聚合物涂层...药物洗脱支架（drug-eluting stents,DES）是目前冠心病介入治疗的主要选择,与裸金属支架（bare metal stents,BMS）比较,DES明显减少支架植入后再狭窄及靶血管再次血运重建,明显提高介入治疗的有效性。然而,第一代DES的永久聚合物涂层具有持续的致炎、促血栓作用,使得支架植入术后的血管再内皮化进程延迟.展开更多
Scaffolds play a crucial role in tissue engineering. Biodegradable polymers with great processing flexibility are the predominant scaffolding materials. Synthetic biodegradable polymers with well-defined structure and...Scaffolds play a crucial role in tissue engineering. Biodegradable polymers with great processing flexibility are the predominant scaffolding materials. Synthetic biodegradable polymers with well-defined structure and without immunological concerns associated with naturally derived polymers are widely used in tissue engineering. The synthetic biodegradable polymers that are widely used in tissue engineering, including polyesters, polyanhydrides, polyphosphazenes, polyurethane, and poly(glycerol sebacate) are summarized in this article. New developments in conducting polymers, photoresponsive polymers, amino-acid-based polymers, enzymatically degradable polymers, and peptide-activated polymers are also discussed. In addition to chemical functionalization, the scaffold designs that mimic the nano and micro features of the extracellular matrix(ECM) are presented as well, and composite and nanocomposite scaffolds are also reviewed.展开更多
文摘药物洗脱支架（drug-eluting stents,DES）是目前冠心病介入治疗的主要选择,与裸金属支架（bare metal stents,BMS）比较,DES明显减少支架植入后再狭窄及靶血管再次血运重建,明显提高介入治疗的有效性。然而,第一代DES的永久聚合物涂层具有持续的致炎、促血栓作用,使得支架植入术后的血管再内皮化进程延迟.
基金the financial support of the US National Institutes of Health(NIDCR DE015384,DE017689,DE022327)DOD(W81XWH-12-2-0008)+1 种基金the National Science Foundation of the United States(DMR-1206575)the National Natural Science Foundation of China(21304073)
文摘Scaffolds play a crucial role in tissue engineering. Biodegradable polymers with great processing flexibility are the predominant scaffolding materials. Synthetic biodegradable polymers with well-defined structure and without immunological concerns associated with naturally derived polymers are widely used in tissue engineering. The synthetic biodegradable polymers that are widely used in tissue engineering, including polyesters, polyanhydrides, polyphosphazenes, polyurethane, and poly(glycerol sebacate) are summarized in this article. New developments in conducting polymers, photoresponsive polymers, amino-acid-based polymers, enzymatically degradable polymers, and peptide-activated polymers are also discussed. In addition to chemical functionalization, the scaffold designs that mimic the nano and micro features of the extracellular matrix(ECM) are presented as well, and composite and nanocomposite scaffolds are also reviewed.
