About the Authors

Sang Ok Song

Affiliation School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, United States of America

Jeffrey Varner

jdv27@cornell.edu

Affiliation School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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