1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639977, Singapore
2. the Center for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, 117546, Singapore
3. Biomedical Institute for Global Health Research and Technology, National University of Singapore, 14 Medical Drive, 117546, Singapore
4. Department of Biomedical Engineering, National University of Singapore, 2 Engineering Drive 3, 117581, Singapore