1. Department of Bioengineering; University of California-Los Angeles; Los Angeles CA 90095 USA
2. Center for Minimally Invasive Therapeutics (C-MIT); California NanoSystems Institute; University of California-Los Angleles; Los Angeles CA 90095 USA
3. School of Pharmacy; Xi'an Jiaotong University; Xi'an 710061 China
4. College of Chemistry; Nankai University; Tianjin 300071 China
5. Department of Chemical and Biomolecular Engineering; University of California-Los Angeles; Los Angeles CA 90095 USA
6. Brigham and Women's Hospital; Harvard Medical School; Boston MA 02115 USA
7. Harvard-MIT Division of Health Sciences and Technology; Cambridge MA 02139 USA
8. Jonsson Comprehensive Cancer Center; University of California-Los Angeles; 10833 Le Conte Ave Los Angeles CA 90024 USA
9. Department of Radiology; University of California-Los Angeles; Los Angeles CA 90095 USA. Department of Bioindustrial Technologies; College of Animal Bioscience and Technology; Konkuk University; Seoul 143701 Republic of Korea