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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 54: Poster Session 3

CPP 54.37: Poster

Thursday, April 3, 2014, 15:00–19:00, P2

Diffusion of nanoparticles in red blood cell suspensions — •Vera Forster and Stephan Gekle — Biofluid Simulation and Modeling, University Bayreuth, Germany

We investigate the diffusion of nanoparticles near highly deformable red blood cells in comparison with theoretical predictions for rigid walls. In our simulations we use a hybrid model which consists of three different parts. The fluid is modelled via the Lattice Boltzmann method, while molecular dynamics are used for nanoparticles with viscous coupling for fluid-particle interactions. The third part contains the deformation of cell-membranes, whose elastic forces are determined from continuum elasticity theory. The immersed boundary method couples fluid and membranes. We measure diffusion directly by employing the mean-square displacement and indirectly via the particle mobility determined by pulling the particle through the liquid.