1. Key Laboratory of Leather Chemistry and Engineering (Ministry of Education), Sichuan University, Chengdu 610065, China
2. Research Center of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
3. Department of Orthopaedics, Strategic Support Force Medical Center, Beijing 100101, P. R. China
4. Department of Pharmacy, West China Hospital, Sichuan University, Chengdu 610041, China
5. National Engineering Research Center for Biomaterials, Sichuan University, 29 Wang Jiang Road, Chengdu 610065, China