About the Authors

Margaret E. Johnson

JohnsonME@niddk.nih.gov (MEJ); Gerhard.Hummer@NIH.GOV (GH)

Affiliation Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, United States of America

Gerhard Hummer

JohnsonME@niddk.nih.gov (MEJ); Gerhard.Hummer@NIH.GOV (GH)

Affiliation Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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