a
Chemical Research Laboratory, Oxford University, 12 Mansfield Road, Oxford OX1 3TA, England
E-mail: Stephen.Faulkner@chem.ox.ac.uk
;
Tel: +44 (0)1865 285148
b
Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 København Ø, Denmark
E-mail: TJS@chem.ku.dk
;
Fax: +45 35320214
;
Tel: +45 35320213
c
Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, UK