1. Department of Microsystems Engineering (IMTEK)—ElectroActive Coatings Group, University of Freiburg, Georges-Koehler-Allee 102, 79110 Freiburg, Germany
2. BrainLinks-BrainTools Center, University of Freiburg, 79110 Freiburg, Germany
3. Department of Microsystems Engineering (IMTEK)—Laboratory for Biomicrotechnology, University of Freiburg, Georges-Koehler-Allee 102, 79110 Freiburg, Germany
4. Bernstein Center Freiburg (BCF), University of Freiburg, 79110 Freiburg, Germany