1. Biomaterials and Polymer Science Department of Bio‐ and Chemical Engineering TU Dortmund University Emil‐Figge‐Str. 66 44227 Dortmund Germany
2. BG University Hospital Bergmannsheil Bochum Surgical Research Ruhr University Bochum Buerkle de la Camp Platz‐1 44789 Bochum Germany
3. Institute of Materials Engineering TU Dortmund University Leonhard‐Euler‐Straße 2 44227 Dortmund Germany