1. National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, People’s Republic of China
2. Jiangsu Province Key Laboratory of Stem Cell Research, Soochow University, Suzhou 215006, People’s Republic of China
3. Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
4. Research Center of Materials Science, Beijing Institute of Technology, Beijing, 100081, People’s Republic of China