1. Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany
2. Institute of Medical Engineering, University of Lübeck, 23562 Lübeck, Germany
3. Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE, 23562 Lübeck, Germany
4. MMML Lab, Department of Physics, University of Latvia, LV-1004 Riga, Latvia
5. Aix-Marseille Université, CEA, CNRS, BIAM, F-13108 Saint-Paul-lez-Durance, France