a
Applied Physics – Biophysics & Center for NanoScience (CeNS), Ludwig Maximilian University of Munich, Amalienstr. 54, 80799 Munich, Germany
E-mail: thorben.cordes@physik.lmu.de
;
Fax: +49 531 391 5334
b
Biological Physics Research Group, Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
c
LMU Biocenter, Department of Biology, Ludwig Maximilian University of Munich, Grosshaderner Str. 2, 82152 Planegg-Martinsried, Germany
E-mail: lothar.schermelleh@lmu.de
d
NanoBioSciences, Institute of Physical and Theoretical Chemistry, TU Braunschweig, Hans-Sommer-Str. 10, 38106 Braunschweig, Germany