Author Affiliations

Keir C. Neuman,^# Grace F. Liou,^#,* Steven M. Block,^#,** and Keren Bergman^#,†

^#Department of Physics, Princeton Materials Institute, Princeton University, Princeton, New Jersey 08544

^*Department of Chemical Engineering, Princeton University, Princeton, New Jersey 08544

^**Department of Molecular Biology, Princeton Materials Institute, Princeton University, Princeton, New Jersey 08544

^†Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544