Berlin 2015 – wissenschaftliches Programm
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BP: Fachverband Biologische Physik
BP 4: Colloids and Complex Liquids I (joint CPP/DY/BP)
BP 4.11: Vortrag
Montag, 16. März 2015, 12:15–12:30, C 130
Transport of active particles in low-porosity structures — Frank Wirner1, Christian Scholz1, and •Clemens Bechinger1,2 — 12. Physikalisches Institut, Universität Stuttgart, Germany — 2Max-Planck-Institut für Intelligente Systeme, Stuttgart, Germany
Transport of active bacteria in porous media is of importance in many different fields, ranging from bioremediation, groundwater contamination and enhanced oil recovery to blood perfusion inside the body. We study the motion of active particles in artificially created porous media by a semi-experimental approach. In porous media with low porosities the presence of stagnant parts can lead to a temporary trapping of active particles in such regions, which can vastly increase their retention times. We compare the distributions of retention times and the transport properties of active and purely Brownian particles.