title: Brownian motion and the hydrodynamic friction tensor for colloidal particles of complex shape.
abstract: We synthesize colloidal particles with various anisotropic shapes and track their orientationally resolved Brownian trajectories using confocal microscopy. An analysis of appropriate short-time correlation functions provides direct access to the hydrodynamic friction tensor of the particles revealing nontrivial couplings between the translational and rotational degrees of freedom. The results are consistent with calculations of the hydrodynamic friction tensor in the low-Reynolds-number regime for the experimentally determined particle shapes.
authors: Center for Soft Matter Research, Department of Physics, New York University, New York, New York 10003.
authors: Daniela J
authors: DJ
authors: Kraft
authors: SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3JZ, United Kingdom.
authors: Raphael
authors: R
authors: Wittkowski
authors: Institut für Theoretische Physik II: Weiche Materie, Heinrich-Heine-Universität Düsseldorf, D-40225 Düsseldorf, Germany.
authors: Borge
authors: B
authors: ten Hagen
authors: Center for Soft Matter Research, Department of Physics, New York University, New York, New York 10003.
authors: Kazem V
authors: KV
authors: Edmond
authors: Center for Soft Matter Research, Department of Physics, New York University, New York, New York 10003.
authors: David J
authors: DJ
authors: Pine
authors: Institut für Theoretische Physik II: Weiche Materie, Heinrich-Heine-Universität Düsseldorf, D-40225 Düsseldorf, Germany.
authors: Hartmut
authors: H
authors: Löwen