About the Authors

C. David Williams, Michael Regnier
Department of Physiology and Biophysics, University of Washington, Seattle, Washington, United States of America

Michael Regnier, Thomas L. Daniel
Department of Bioengineering, University of Washington, Seattle, Washington, United States of America

Thomas L. Daniel
Department of Biology, University of Washington, Seattle, Washington, United States of America

Corresponding Author

cdave@uw.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CDW MR TLD. Performed the experiments: CDW. Analyzed the data: CDW TLD. Contributed reagents/materials/analysis tools: CDW TLD. Wrote the paper: CDW MR TLD.