1. Bioengineering Graduate Program, University of California at Merced, Merced, 95343 California, United States
2. NSF-CREST Center for Cellular and Biomolecular Machines (CCBM), University of California at Merced, Merced, 95343 California, United States
3. Chemistry and Chemical Biology Graduate Program, University of California at Merced, Merced, 95343 California, United States
4. Department of Bioengineering, University of California at Merced, Merced, 95343 California, United States