About the Authors

Xingguo R. Chen

Affiliation Department of Chemistry, Virginia Tech, Blacksburg, Virginia, 24061, United States of America

Shuang A. Fan

Affiliation Department of Chemistry, Virginia Tech, Blacksburg, Virginia, 24061, United States of America

Rachel I. Ware

Affiliation Department of Chemistry, Virginia Tech, Blacksburg, Virginia, 24061, United States of America

Felicia A. Etzkorn

fetzkorn@vt.edu

Affiliation Department of Chemistry, Virginia Tech, Blacksburg, Virginia, 24061, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FAE XRC. Performed the experiments: XRC SAF RIW. Analyzed the data: FAE XRC SAF RIW. Wrote the paper: FAE XRC.