1. BBTC, Newcastle University; Newcastle Upon Tyne NE1 7RU U.K.
2. Lonza Biologics plc; 228 Bath Road Slough SL1 4DX U.K.
3. University of Copenhagen; Rolighedsvej 30 Frederiksberg DK-1958 Denmark
4. School of Chemical and Process Engineering; University of Leeds; Leeds LS2 9JT U.K.