1. CorTec GmbH, Freiburg, Germany
2. Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering, Faculty of Engineering, University of Freiburg, Freiburg, Germany
3. Translational Neurotechnology Lab, Department of Neurosurgery, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
4. Laboratory for Electrical Instrumentation, Department of Microsystems Engineering, Faculty of Engineering, University of Freiburg, Freiburg, Germany