Dresden 2017 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 21: Posters - Membranes and Vesicles

BP 21.3: Poster

Dienstag, 21. März 2017, 14:00–16:00, P1A

Analytical description of nanoparticle motion near an elastic membrane — •Rebecca Benelli, Abdallah Daddi-Moussa-Ider, and Stephan Gekle — Biofluid Simulation and Modeling, Fachbereich Physik, Universität Bayreuth

We investigate analytically the motion of an extended nanoparticle near an elastic membrane endowed with shearing rigidity. For the simpler case of a point particle or rather a particle distant to the membrane this has been done recently1. Taking the conditions resulting from an elastic membrane and combining them with the description of the motion of an extended spherical particle near a fluid-fluid-interface2 leads to a linear equation system. This can be solved numerically in order to get the frequency dependent mobility of the particle.

1 A. Daddi-Moussa-Ider, A. Guckenberger and S. Gekle. Long-lived anomalous thermal diffusion induced by elastic cell membranes on nearby particles. Phys. Rev. E, 93(1):012612, 2016

2 SH. Lee and LG. Leal. Motion of a sphere in the presence of a plane interface. J. Fluid Mech., 98(01):193-224, 1980

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