1. Institute of Materials Research and Engineering (IMRE), Agency of Science (A*STAR), Fusionopolis, Singapore
2. School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Jurong West, Singapore
3. Department of Biomedical Engineering, National University of Singapore, Queenstown, Singapore
4. A*STAR Skin Research Labs (A*SRL), Fusionopolis, Singapore