About the Authors

Christoph Rau

Affiliations Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot, United Kingdom, Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America

Margaret Hwang

Affiliation Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America

Wah-Keat Lee

Affiliation Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, United States of America

Claus-Peter Richter

cri529@northwestern.edu

Affiliations Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America, Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, United States of America, The Hugh Knowles Center, Department of Communication Sciences and Disorders, Northwestern University, Evanston, Illinois, United States of America

Competing Interests

The authors have read the journal's policy and have the following conflicts: CR is employed by Diamond Light Source Ltd. 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: CR CPR WKL. Performed the experiments: CR CPR WKL. Analyzed the data: MH CR CPR. Wrote the paper: CR CPR MH.