1. Polymer & Textile Composites Laboratory Department of Mechanical Engineering, The National University of Singapore, 9 Engineering Drive 1, Singapore 117576
2. Department of Orthopaedic Surgery The National University of Singapore, 9 Engineering Drive 1, Singapore 117576
3. Division of Advanced Fibro Science Kyoto Institute of Technology Matsugasaki, Sakyo-ku, Kyoto 606–8585, Japan