1. Aachen-Maastricht Institute for Biobased Materials, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
2. Zuyd University of Applied Sciences, P.O. Box 550, 6400 AN Heerlen, The Netherlands
3. European Synchrotron Radiation Facility, CS40220, 38043 Grenoble, France
4. Corbion Purac Biomaterials, P.O. Box 21, 4200 AA Gorinchem, The Netherlands