Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey, United States of America.|Institute of Bioengineering and Nanotechnology, Singapore, Singapore.|Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey, United States of America.|Institute of Molecular and Cell Biology, A*STAR (Agency of Science, Technology and Research), Biopolis, Singapore, Singapore.|Institute of Molecular and Cell Biology, A*STAR (Agency of Science, Technology and Research), Biopolis, Singapore, Singapore.|Institute of Bioengineering and Nanotechnology, Singapore, Singapore.|Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey, United States of America.