1. Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore.
2. Institute for Health Innovation and Technology, National University of Singapore, Singapore 117599, Singapore.
3. Graduate School of Integrative Sciences and Engineering, National University of Singapore, Singapore 117456, Singapore.
4. N.1 Institute for Health, National University of Singapore, Singapore 117456, Singapore.
5. Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore.