About the Authors

Phumzile Mhlanga

Affiliation Department of Chemistry, University of Surrey, Guildford, Surrey, United Kingdom

Wan Aminah Wan Hassan

Affiliation Department of Chemistry, University of Surrey, Guildford, Surrey, United Kingdom

Ian Hamerton

Affiliation Department of Chemistry, University of Surrey, Guildford, Surrey, United Kingdom

Brendan J. Howlin

b.howlin@surrey.ac.uk

Affiliation Department of Chemistry, University of Surrey, Guildford, Surrey, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BJH IH. Performed the experiments: PM WAWH. Analyzed the data: BJH WAWH. Contributed reagents/materials/analysis tools: PM. Wrote the paper: BJH IH.