1. Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore.
2. Department of Chemistry, National University of Singapore, Singapore 117543, Singapore.
3. Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China.
4. Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University, Fuzhou 350207, China.
5. The N.1 Institute for Health, National University of Singapore, Singapore 117456, Singapore.