1. College of Civil Engineering, Shenzhen University, Shenzhen 518000, China
2. Nanotechnology Center of Functional and Intelligent Textiles and Apparel, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong 999077, China
3. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
4. Department of Mechanical and Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, China