1. Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 Singapore 117585 Singapore
2. NUS Graduate School for Integrative Sciences and Engineering; National University of Singapore; 28 Medical Drive, #05-01 Singapore 117456 Singapore
3. Department of Chemistry and Biochemistry; Center for Polymers and Organic Solids; University of California; Santa Barbara CA 93107 USA
4. Singapore Institute for Neurotechnology (SINAPSE); National University of Singapore; 28 Medical Drive, #05-COR Singapore 117456 Singapore
5. Institute of Biomedical Engineering and Nanomedicine; National Health Research Institutes; 35 Keyan Road Zhunan Town Miaoli County 35053 Taiwan
6. Department of Biomedical Engineering; National University of Singapore; 21 Lower Kent Ridge Road Singapore 119077 Singapore
7. National Neuroscience Institute (NNI); 11 Jalan Tan Tock Seng Singapore 308433 Singapore
8. Department of Electrical and Computer Engineering; National University of Singapore; 21 Lower Kent Ridge Road Singapore 119077 Singapore