1. Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore, Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore, Division of Bioengineering, Faculty of Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore, and Industrial Membrane Research Institute, Department of Chemical...