1. Optical Sciences, MESA+ Institute for Nanotechnology, University of Twente, 7500 AE, Enschede, The Netherlands
2. Department of Medical Cell BioPhysics, MIRA Institute, University of Twente, 7500 AE, Enschede, The Netherlands
3. Laboratory of Experimental Clinical Chemistry, Academic Medical Center, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands
4. Vesicle Observation Centre, Academic Medical Center, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands
5. Department of Biomedical Engineering and Physics, Academic Medical Centre of the University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands