1. Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore119276, Singapore
2. NUS Environmental Research Institute (NERI), National University of Singapore, 5A Engineering Drive 1, Singapore117411, Singapore
3. National University of Singapore (Chongqing) Research Institute, 2 Huizhu Road, Yubei District, Chongqing401120, China