1. Department of Chemistry, University of California, Berkeley, California 94720, and Lawrence Berkeley Laboratory, Berkeley, California 94720-1460
2. Media Laboratory, Department of Biological Engineering, Brain and Cognitive Sciences, and McGovern Institute, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
3. The Kavli Foundation, Oxnard, California 93030
4. Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, Wyss Institute for Biologically Inspired Engineering and Biophysics Program, Harvard University, Boston, Massachusetts 02115
5. Department of Neuroscience, Division of Engineering, Department of Computer Science, Brown University, Providence, Rhode Island 02912
6. Departments of Biological Sciences, Biomedical Engineering, Physiology and Biophysics, Stem Cell Biology and Regenerative Medicine, and Pediatrics, Radiology and Ophthalmology, University of Southern California, Los Angeles, California 90089
7. Cell Biology and Metabolism Program, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892
8. Howard Hughes Medical Institute, Janelia Farm Research Campus, Ashburn, Virginia 20147
9. Department of Neurobiology, University of California, Los Angeles, California 90095
10. Department of Physics, Laboratory of Atomic and Solid State Physics, and Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, New York 14853
11. Department of Physics and Division of Engineering, Brown University, Providence, Rhode Island 02912
12. Department of Chemistry and Chemical Biology and Department of Physics, Harvard University, Cambridge, Massachusetts 02138
13. Howard Hughes Medical Institute and Department of Biological Sciences, Columbia University, New York, New York 10027
14. Allen Institute for Brain Science, Seattle, Washington 98103
15. Departments of Applied Physics and Biology, James H. Clark Center, Stanford University, Stanford, California 94305
16. Howard Hughes Medical Institute, Computational Neurobiology Laboratory, Salk Institute, La Jolla, California 92037, and Division of Biological Sciences, University of California, San Diego, La Jolla, California 92093
17. Department of Electrical Engineering, Columbia University, New York, New York 10027
18. Division of Biology, California Institute of Technology, Pasadena, California 91125
19. Department of Biology and Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02254
20. Department of Chemistry & Biochemistry, Department of Materials Science & Engineering, University of California, Los Angeles, California 90095
21. School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853
22. Kavli Institute for Brain Science, Columbia University, New York, New York 10027
23. Howard Hughes Medical Institute, Departments of Chemistry and Chemical Biology and Physics, Harvard University, Cambridge, Massachusetts 02138