1. Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
2. Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
3. Department of Bioengineering, Stanford University, Stanford, California 94305, United States
4. Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California 94305, United States
5. Photon Science, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
6. Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States