About the Authors

Scott A. Walper

Affiliation Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, Washington, DC, United States of America

Jinny L. Liu

Affiliation Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, Washington, DC, United States of America

Daniel Zabetakis

Affiliation Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, Washington, DC, United States of America

George P. Anderson

Affiliation Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, Washington, DC, United States of America

Ellen R. Goldman

ellen.goldman@nrl.navy.mil

Affiliation Naval Research Laboratory, Center for Bio/Molecular Science and Engineering, Washington, DC, United States of America

Competing Interests

Co-author Ellen Goldman is a PLOS ONE Editorial Board member. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: SAW JLL DZ GPA ERG. Performed the experiments: SAW JLL DZ GPA ERG. Analyzed the data: SAW JLL DZ GPA ERG. Contributed to the writing of the manuscript: SAW GPA ERG.