1. Polymer Science, Zernike Institute for Advanced Materials, University of Groningen, Groningen 9747 AG, The Netherlands
2. Products and Processes for Biotechnology, Engineering and Technology Institute Groningen, University of Groningen, Groningen 9747 AG, The Netherlands
3. Macromolecular Chemistry and New Polymeric Material, Zernike Institute for Advanced Materials, University of Groningen, Groningen 9747 AG, The Netherlands