About the Authors

Smita Agrawal

Address Current address: Institute of Human Genetics, University of Minnesota Twin Cities, Minneapolis, Minnesota, United States of America

Affiliations Department of Chemical Engineering, University of California Berkeley, Berkeley, California, United States of America, Department of Bioengineering, University of California Berkeley, Berkeley, California, United States of America, Helen Wills Neuroscience Institute, University of California Berkeley, Berkeley, California, United States of America

Colin Archer

Address Current address: Australian Institute of Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Australia

Affiliations Department of Chemical Engineering, University of California Berkeley, Berkeley, California, United States of America, Department of Bioengineering, University of California Berkeley, Berkeley, California, United States of America, Helen Wills Neuroscience Institute, University of California Berkeley, Berkeley, California, United States of America

David V. Schaffer

schaffer@berkeley.edu

Affiliations Department of Chemical Engineering, University of California Berkeley, Berkeley, California, United States of America, Department of Bioengineering, University of California Berkeley, Berkeley, California, United States of America, Helen Wills Neuroscience Institute, University of California Berkeley, Berkeley, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SA DVS. Performed the experiments: SA. Analyzed the data: SA. Contributed reagents/materials/analysis tools: SA CA. Wrote the paper: SA.