1. Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37240, United States
2. Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37240, United States
3. Vanderbilt Institute for Nanoscale Science and Engineering, Vanderbilt University, Nashville, Tennessee 37240, United States
4. Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, Tennessee 37240, United States
5. The Molecular Foundry and Division of Molecular Biophysics & Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
6. Department of Pharmacology, Vanderbilt University, Nashville, Tennessee 37240, United States
7. Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37240, United States