About the Authors

Weikai He

Affiliation SDU-VT International Laboratory, School of Physics, Shandong University, Jinan, Shandong, China

Scott C. Pedersen

Affiliation Department of Biology-Microbiology, South Dakota State University, Brookings, SD, USA

Anupam K. Gupta

Affiliation Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia, USA

James A. Simmons

Affiliation Department of Neuroscience, Brown University, Providence, RI, USA

Rolf Müller

rolf.mueller@vt.edu

Affiliations Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia, USA, SDU-VT International Laboratory, School of Physics, Shandong University, Jinan, Shandong, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WH AKG SP RM. Performed the experiments: WH AKG SP JAS. Analyzed the data: WH AKG SP JAS RM. Contributed reagents/materials/analysis tools: WH AKG RM. Wrote the paper: WH SP JAS RM.