1. Department of Biomedical Engineering, City University of Hong Kong, Hong Kong S.A.R 999077, China
2. College of Biomass Science and Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
3. Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong S.A.R 999077, China
4. School of Engineering. Swinburne University of Technology, Melbourne, Victoria 3122, Australia
5. City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, P. R. China