1. DWI‐Leibniz Institute for Interactive Materials Forckenbeckstrasse 50 Aachen 52074 Germany
2. Institute for Technical and Macromolecular Chemistry RWTH Aachen Worringerweg 1–2 Aachen 52074 Germany
3. Biomaterials Field Research Center for Functional Materials National Institute for Materials Science Tsukuba 305‐0044 Japan
4. Institute of Applied Medical Engineering Department of Advanced Materials for Biomedicine RWTH University Forckenbeckstraße 55 Aachen 52074 Germany