1. School of Materials Science and Engineering South China University of Technology Guangzhou 510641 P. R. China
2. National Engineering Research Centre for Tissue Restoration and Reconstruction South China University of Technology Guangzhou 510006 P. R. China
3. School of Medicine South China University of Technology Guangzhou 510006 P. R. China
4. Key Laboratory of Biomedical Engineering of Guangdong Province South China University of Technology Guangzhou 510006 P. R. China
5. Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education South China University of Technology Guangzhou 510006 P. R. China
6. Zhongshan Institute of Modern Industrial Technology of SCUT Zhongshan Guangdong 528437 P. R. China