1. Sixth Form, Lancaster Girls’ Grammar School, Lancaster LA1 1SF, Lancashire, U.K.
2. Lancaster Environment Centre, Lancaster University, Library Avenue, Lancaster LA1 4YQ, U.K.
3. Chemistry Department, Lancaster Girls’ Grammar School, Lancaster LA1 1SF, Lancashire, U.K.
4. Biocel Ltd., Hull HU10 7TS, U.K.
5. School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, Lancashire, U.K.