1. Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing 401147, P. R. China
2. School of Life Science and Biotechnology, Dalian University of Technology, Dalian 116023, P. R. China
3. College of Textiles and Garments, Southwest University, Chongqing 400715, P. R. China
4. Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610064, P. R. China