1. School of Pharmacy and Biomolecular Sciences University of Brighton Brighton BN2 4GJ UK
2. Rayner Intraocular Lenses Limited The Ridley Innovation Centre Worthing BN14 8AQ UK
3. Advanced Engineering Centre University of Brighton Brighton BN2 4GJ UK
4. Department of Material Science and Engineering A. J. Drexel Nanomaterials Institute Drexel University Philadelphia PA 19104 USA