1. Biophysical Engineering, MESA+ Institute for Nanotechnology and Institute for Biomedical Technology, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands, Integrated Optical Microsystems, MESA+ Institute for Nanotechnology, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands, Paradocs Group BV, PO Box 99, 4000 AB Tiel, The Netherlands, bioMérieux BV, Boseind 15, 5281 RM Boxtel, The Netherlands, and LioniX BV, PO Box 456, 7500 AH Enschede, The Netherlands