1. National Engineering Laboratory for Clean Technology of Leather Manufacture, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
2. Petroleum Exploration Department of SINOPEC ShengLi Oilfield, Dongying 257200, P. R. China
3. Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, P. R. China
4. Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London, London NW3 2PF, United Kingdom