1 Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles (UCLA ), 609 Charles E Young Dr E, Los Angeles, CA 90095, USA.
2 California NanoSystems Institute, UCLA, 570 Westwood Plaza Building 114 | Mail Code: 722710, Los Angeles, CA 90095, USA.
3 Department of Chemistry and Biochemistry, UCLA, 607 Charles E. Young Drive East | Box 951569, Los Angeles, CA 90095-1569, USA.