1. Molecular and Computational Biology, Department of Biological Sciences, University of Southern California , Los Angeles, CA 90089 , United States
2. Department of Microbiology, Immunology and Molecular Genetics, University of California , Los Angeles, CA 90095 , United States
3. California NanoSystems Institute, University of California , Los Angeles, CA90095 , United States
4. Genetic, Molecular and Cellular Biology Program, Keck School of Medicine, University of Southern California , Los Angeles, CA 90089 , United States
5. Norris Comprehensive Cancer Center, University of Southern California , Los Angeles, CA 90089 , United States
6. Center of Excellence in NanoBiophysics, University of Southern California , Los Angeles, CA 90089 , United States