Venugopal J, Zhang Y Z, Ramakrishna S
Nanotechnology. 2005 Oct;16(10):2138-42. doi: 10.1088/0957-4484/16/10/028. Epub 2005 Aug 9.
Electrospun polymer nanofibres were originally developed for their durability and resistance to all forms of degradation and biodegradation. Some polymer nanofibres are biocompatible and biodegradable and therefore suitable for replacement of structurally or physiologically deficient tissues and organs in humans. Here, biocompatible polycaprolactone (PCL) nanofibre scaffolds modified with collagen types I and III were used for vascular tissue engineering. Coronary artery smooth muscle cells (SMCs) were grown on PCL nanofibres, modified PCL/collagen biocomposite nanofibres and collagen nanofibres. The results show that the modified PCL/collagen biocomposite nanofibre scaffolds provide required mechanical properties for regulation of normal cell function in vascular tissue engineering.
静电纺丝聚合物纳米纤维最初因其耐久性以及对各种形式的降解和生物降解的抗性而被开发。一些聚合物纳米纤维具有生物相容性和可生物降解性,因此适合替代人体结构或生理上有缺陷的组织和器官。在此,用I型和III型胶原蛋白修饰的生物相容性聚己内酯(PCL)纳米纤维支架被用于血管组织工程。冠状动脉平滑肌细胞(SMCs)在PCL纳米纤维、修饰的PCL/胶原蛋白生物复合纳米纤维和胶原蛋白纳米纤维上生长。结果表明,修饰的PCL/胶原蛋白生物复合纳米纤维支架为血管组织工程中正常细胞功能的调节提供了所需的机械性能。