About the Authors

Rosa T. Branca

rtbranca@unc.edu

Affiliations Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America, Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America

Le Zhang

Affiliations Applied Science and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America, Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America

Warren S. Warren

Affiliation Department of Chemistry, Duke University, Durham, North Carolina, United States of America

Edward Auerbach

Affiliation Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, Minnesota, United States of America

Arjun Khanna

Affiliation Department of Chemistry, Duke University, Durham, North Carolina, United States of America

Simone Degan

Affiliation Department of Chemistry, Duke University, Durham, North Carolina, United States of America

Kamil Ugurbil

Affiliation Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, Minnesota, United States of America

Robert Maronpot

Affiliation Experimental Pathology Laboratories, Inc., Research Triangle Park, North Carolina, United States of America

Competing Interests

Dr. RM is a senior pathologist in the Experimental Pathology Laboratory. However, 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: RTB. Performed the experiments: RTB AK LZ EA. Analyzed the data: RTB SD RM. Contributed reagents/materials/analysis tools: WSW KU. Wrote the paper: RTB WSW.