1. Bio-nanomaterials and Regenerative Medicine Research Division; Zhejiang-California International Nanosystem Institute, Zhejiang University; Hangzhou 310058 China
2. Department of Orthopaedic Surgery; the First Affiliated hospital, School of Medicine of Zhejiang University; Hangzhou 310003 China
3. Clinical Research Institute, Zhejiang Provincial People's Hospital; Hangzhou Zhejiang 310014 People's Republic of China
4. Rui'an People's Hospital & the 3rd Hospital Affiliated to Wenzhou Medical University; Rui'an 325200 China
5. Department of Orthopaedic Surgery; Second Affiliated Hospital, School of Medicine, Zhejiang University; Hangzhou 310009 China
6. Department of Engineering Sciences, The Ångstrom Laboratory; Uppsala University; Box 534 Uppsala 75121 Sweden