1. College of Biomass Science and Engineering Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University Chengdu 610065 P. R. China
2. Yibin Institute of Industrial Technology/Sichuan University Research Center for Fiber Science and Engineering Technology Yibin Park Yibin 64460 P. R. China
3. Department of Biomedical Engineering City University of Hong Kong Kowloon Hong Kong SAR 999077 P. R. China
4. Shenzhen Research Institute City University of Hong Kong Shenzhen 518057 P. R. China
5. State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China