1. ESRF − The European Synchrotron, 38043 Grenoble, France
2. Paul Scherrer Institut (PSI), 5232 Villigen, Switzerland
3. Physical Chemistry and Polymer Science (FYSC), Vrije Universiteit Brussels, 1050 Brussels, Belgium
4. Department of Microsystems, University of South-Eastern Norway, Campus Vestfold, 3184 Borre, Norway