1. Westfälische Hochschule, Münsterstraße 265, 46397 Bocholt, Germany
2. Cluster of Excellence livMatS @ FIT—Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Georges-Köhler-Allee 105, 79110 Freiburg im Breisgau, Germany
3. Department of Microsystems Engineering—IMTEK, University of Freiburg, Georges-Köhler-Allee 078, 79110 Freiburg im Breisgau, Germany