1. Center for Biomaterial Development and Berlin-Brandenburg Center for Regenerative Therapies, Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Teltow - Germany
2. Institute of Chemistry, University of Potsdam, Potsdam-Golm - Germany
3. Department of Zoology, Functional Morphology and Biomechanics, Christian-Albrechts-University Kiel - Germany