About the Authors

Taylor S. Cohen

Affiliation Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Gladys Gray Lawrence

Affiliation Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Amit Khasgiwala

Affiliation Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Susan S. Margulies

margulies@seas.upenn.edu

Affiliation Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TSC SSM. Performed the experiments: TSC GGL AK. Analyzed the data: TSC GGL. Contributed reagents/materials/analysis tools: SSM. Wrote the paper: TSC SSM.