1. Department of Mechanical Engineering, City University of Hong Kong, Hong Kong SAR, Kowloon 999077, Hong Kong
2. Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China
3. Nanotechnology Center of Functional and Intelligent Textiles and Apparel Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong