1. Analytical and Testing Center; Sichuan University; Chengdu Sichuan 610064 China
2. College of Polymer Science and Engineering; Sichuan University; Chengdu Sichuan 610065 China
3. Engineering Research Center for Biomaterials; Sichuan University; Chengdu Sichuan 610064 China
4. Sichuan Guojia Biomaterials Co., Ltd; Chengdu Sichuan 610064 China