1. National Engineering Laboratory of Modern Silk; College of Textile and Clothing Engineering; Soochow University; Suzhou 215123 P.R. China
2. Physikalisches Institute and Center for Nanotechnology (CeNTech); Westfälische Wilhelms-Universität Münster; Münster D-48149 Germany
3. School of Electronic Information and Electronic Engineering; Shanghai Jiao Tong University; Shanghai 200240 P.R. China
4. Institute of Orthopaedics and Department of Orthopaedic Surgery of First Affiliated Hospital; Soochow University; Suzhou 215006 P.R. China
5. Institue of Functional Nano & Soft Materials (FUNSOM); Soochow University; Suzhou 215123 P.R. China