1. Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany
2. Institute of Molecular Enzyme Technology, Heinrich Heine University Düsseldorf and Research Center Jülich, Wilhelm Johnen Strasse, 52426 Jülich, Germany
3. DWI – Leibniz Institute for Interactive Materials, Forckenbeckstraße 50, 52074 Aachen, Germany