About the Authors

Miklos Erdelyi

Affiliations Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom, Analytical Science Division, National Physical Laboratory, Teddington, Middlesex, United Kingdom, Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary

Joseph Simon

Affiliation Department of Pharmacology, University of Cambridge, Cambridge, United Kingdom

Eric A. Barnard

Affiliation Department of Pharmacology, University of Cambridge, Cambridge, United Kingdom

Clemens F. Kaminski

cfk23@cam.ac.uk

Affiliation Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ME JS EB CFK. Performed the experiments: ME JS. Analyzed the data: ME JS. Contributed reagents/materials/analysis tools: EB CFK. Wrote the paper: ME JS CFK.