1. Biodesign Center for Bioelectronics and Biosensors, Departments of Chemical Engineering and Mechanical Engineering, Arizona State University, Tempe, Arizona 85287, United States
2. Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
3. Department of Electrical and Computer Engineering, University of California, Davis, Davis, California 95616, United States
4. Biodesign Center for Single Molecule Biophysics, Arizona State University, Tempe, Arizona 85287, United States
5. Department of Chemistry, University of California, Irvine, California 92697, United States
6. Biodesign Center for Bioelectronics and Biosensors, Arizona State University, Tempe, Arizona 85287, United States
7. School of Electrical and Computer Engineering, University of Georgia, Athens, Georgia 30602, United States