1. Chemical Physics and Material Physics Graduate Program, University of California, Irvine, CA 92697, USA
2. Department of Chemistry, University of California, Irvine, CA 92697, USA
3. Department of Molecular Biology and Biochemistry, University of California, Irvine, CA 92697, USA
4. Department of Biomedical Engineering, University of California, Irvine, CA 92697, USA