1. Laboratory of Physical Chemistry
and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB, Wageningen, The Netherlands
2. Dutch Polymer Institute, John F. Kennedylaan 2, 5612 AB, Eindhoven, The Netherlands
3. Adolphe Merkle Institute, University of Fribourg, Route de l’ancienne
papeterie, CP 209, CH-1723, Marly 1, Switzerland
4. Laboratory of Macromolecular
and Organic Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology, PO Box 513, 5600
MB Eindhoven, The Netherlands
5. Wageningen Electron Microscopy
Center p/a Laboratory of Virology, Wageningen University, Droevendaalsesteeg 1, PB 16, 6700 AA Wageningen, The Netherlands