1. Department of Bioengineering, Moores Cancer Center; University of California San Diego; 3855 Health Sciences Dr. # 0815 La Jolla CA 92093-0815 USA
2. Department of Chemistry and Biochemistry; University of California at San Diego; La Jolla CA 92093 USA
3. Moores Cancer Center; University of California at San Diego; La Jolla CA 92093 USA
4. Department of Infectious Disease; Israel Institute for Biological Research; P.O. Box 19 Ness-Ziona 74100 Israel
5. Department of Pharmacology; University of California at San Diego; La Jolla CA 92093 USA
6. Department of Nanoengineering; University of California at San Diego; La Jolla CA 92093 USA