1. nanotech@surfaces laboratory, EmpaSwiss Federal Laboratories for Materials Science and Technology Dübendorf Switzerland
2. Laboratory of Molecular Simulation (LSMO), Institut des Sciences et Ingenierie Chimiques, ValaisÉcole Polytechnique Fédérale de Lausanne, Sion Switzerland
3. International Center for Materials NanoarchitectonicsNational Institute for Materials Science 1-1, Namiki Tsukuba, Ibaraki 305-0044 Japan
4. Department of Physics and Swiss Nanoscience InstituteUniversity of Basel Klingelbergstrasse 82 Basel Switzerland
5. Max Planck Institute of Polymer Research Mainz Germany
6. Department of Chemistry and BiochemistryUniversity of Bern Switzerland