1. Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.
2. Center for Bits and Atoms, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
3. MIT Media Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
4. Program in Biophysics, Harvard University, Cambridge, MA 02138, USA.
5. Program in Medical Engineering and Medical Physics, Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA.
6. Wyss Institute, Harvard University, Cambridge, MA 02115, USA.
7. Program in Chemical Biology, Harvard University, Cambridge, MA 02138, USA.
8. Joule Unlimited, Cambridge, MA 02139, USA.
9. Department of Bioengineering, Stanford University, Palo Alto, CA 94305, USA.
10. Department of Chemistry, Yonsei University, Shinchon 134, Seoul 120-749, Korea.
11. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
12. Department of Chemical and Biological Engineering and Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA.