1. Leibniz Institute of Polymer Research Dresden Institute of Biofunctional Polymer Materials Hohe Strasse 6 01069 Dresden Germany
2. Max Planck Institute for Multidisciplinary Sciences 37077 Göttingen Germany
3. Technische Universität Dresden Cluster of Excellence Physics of Life Center for Regenerative Therapies Dresden and Faculty of Chemistry and Food Chemistry Fetscherstraße 105 01307 Dresden Germany