1. School of Materials Science and Engineering; Nanyang Technological University; Block N4.1 Nanyang Avenue 639798 Singapore
2. Skin Bank Unit; Singapore General Hospital, Singapore Department of Plastic Reconstructive & Aesthetic Surgery, Singapore General Hospital; 169608 Singapore
3. Research & Development Unit; National Heart Centre of Singapore; 169608 Singapore
4. Department of Plastic Reconstructive & Aesthetic Surgery; Singapore General Hospital; 169608 Singapore