1. Institute for Chemistry and Biochemistry Freie Universität Berlin Takustraße 3 Berlin 14195 Germany
2. BAM – Federal Institute for Material Research and Testing Division of Surface Analysis and Interfacial Chemistry Unter den Eichen 44–46 Berlin 12205 Germany
3. Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM Wiener Straße 12 Bremen 28359 Germany
4. Hochschule Bremen – City University of Applied Sciences Department of Industrial and Environmental Biology Neustadtswall 30 Bremen 28199 Germany