1. Institute for Physical Chemistry, University of Duisburg-Essen, Universitätsstrasse 5-7, 45117 Essen, Germany
2. Institute of Particle Technology (LFG), University of Erlangen-Nuernberg, Erlangen, Germany
3. Institute for Molecular Biology, Centre for Medical Biotechnology (ZMB), University of Duisburg-Essen, Universitätsstrasse, 45117 Essen, Germany
4. Institut für Mikrotechnik Mainz (IMM), Carl-Zeiss-Strasse 18-20, 55129 Mainz, Germany
5. Molecular and Cellular Oncology/Mainz Screening Center (MSC), University Hospital of Mainz, Langenbeckstrasse 1, 55101 Mainz, Germany
6. Institute of Applied Physics and Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany