About the Authors

Amit Pathak

Affiliation Department of Bioengineering, University of California, Berkeley, California, United States of America

Sanjay Kumar

skumar@berkeley.edu

Affiliation Department of Bioengineering, University of California, Berkeley, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AP SK. Performed the experiments: AP. Analyzed the data: AP. Contributed reagents/materials/analysis tools: AP. Wrote the paper: AP SK.