1. BIOS Lab on a Chip Group, MESA+ Institute for Nanotechnology, Technical Medical Centre, Faculty of Electrical Engineering, Mathematics and Computer Science, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
2. CRV BV, Wassenaarweg 20, 6843 NW Arnhem, The Netherlands
3. Topigs Norsvin Research Center B.V., P.O. Box 43, 6640 AA, Beuningen, The Netherlands