1. Institute of Materials Research and Engineering (IMRE)Agency for Science, Technology and Research (A*STAR) 2 Fusionopolis Way, #08-03 Innovis Singapore 138634 Singapore
2. Department of Materials Science and EngineeringNational University of Singapore 9 Engineering Drive 1 Singapore 117575 Singapore
3. Singapore Eye Research Institute 11 Third Hospital Avenue Singapore 168751 Singapore