1. DWI – Leibniz Institute for Interactive Materials Forckenbeckstraße 50 Aachen 52074 Germany
2. Institute of Technical and Macromolecular Chemistry RWTH Aachen University Worringerweg 2 Aachen 52074 Germany
3. Department of Microsystems Engineering (IMTEK) University of Freiburg Georges‐Köhler‐Allee 103 Freiburg im Breisgau 79110 Germany
4. Chair of Biotechnology RWTH Aachen University Worringerweg 3 Aachen 52074 Germany