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7 papers · 2 filters
Longitudinal Response of Confined Semiflexible Polymers
Florian Thüroff, Benedikt Obermayer, Erwin Frey
The longitudinal response of single semiflexible polymers to sudden changes in externally applied forces is known to be controlled by the propagation and relaxation of backbone ten…
Persistent correlation of constrained colloidal motion
Thomas Franosch, Sylvia Jeney
We have investigated the motion of a single optically trapped colloidal particle close to a limiting wall at time scales where the inertia of the surrounding fluid plays a signific…
Development of anomalous diffusion among crowding proteins
Margaret R. Horton, Felix Höfling, Joachim O. Rädler +1
In cell membranes, proteins and lipids diffuse in a highly crowded and heterogeneous landscape, where aggregates and dense domains of proteins or lipids obstruct the path of diffus…
The Localization Transition of the Two-Dimensional Lorentz Model
Teresa Bauer, Felix Höfling, Tobias Munk +2
We investigate the dynamics of a single tracer particle performing Brownian motion in a two-dimensional course of randomly distributed hard obstacles. At a certain critical obstacl…
Buckling of stiff polymer rings in weak spherical confinement
Katja Ostermeir, Karen Alim, Erwin Frey
Confinement is a versatile and well-established tool to study the properties of polymers either to understand biological processes or to develop new nano-biomaterials. We investiga…
Anomalous transport resolved in space and time by fluorescence correlation spectroscopy
Felix Höfling, Karl-Ulrich Bamberg, Thomas Franosch
A ubiquitous observation in crowded cell membranes is that molecular transport does not follow Fickian diffusion but exhibits subdiffusion. The microscopic origin of such a behavio…