1. Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
2. Center for Synthetic Biology, Northwestern University, Evanston, Illinois 60208, United States
3. Department of Biomedical Engineering, University of California, Irvine, California 92697, United States
4. Center for Synthetic Biology, University of California, Irvine, California 92697, United States