1. Laboratory
of Interdisciplinary Physics, UMR5588 Grenoble Université 1/CNRS, Grenoble, France
2. Laboratory
for Surface Science and Technology, Department of Materials, ETH Zurich, Wolfgang-Pauli-Strasse 10, 8093 Zürich, Switzerland
3. Laboratory
of Biochemistry, UMR 7084 ESPCI ParisTech/CNRS, Paris, France