1. Institute of Biochemistry Dept. of Biotechnology & Enzyme Catalysis Greifswald University Felix-Hausdorff-Str. 4 17487 Greifswald Germany
2. School of Chemistry Science Centre South University College Dublin Belfield Dublin 4 Ireland
3. Surfaces of Porous Membrane Filters Leibniz Institute of Surface Engineering (IOM) Permoserstraße 15 04318 Leipzig Germany
4. Aquapak Polymers Ltd Hollymoor Point, Hollymoor Way, Rubery B31 5HE Birmingham UK