1. Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0378, United States
2. San Diego Met High School, 7250 Mesa College Drive, Room K203, San Diego, California 92111, United States
3. Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, United States
4. Department of Nanoengineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0378, United States