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Dresden 2014 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 54: Poster Session 3

CPP 54.48: Poster

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

Cargo Transport with Active Brownian Particles — •Jannick Fischer1, Felix Kümmel1, and Clemens Bechinger1,212. Physikalisches Institut, Universität Stuttgart, Germany — 2Max Planck Insitute for Intelligent Systems, Stuttgart, Germany

Active Brownian particles are capable of taking up energy from their environment and converting it into directed motion; examples range from chemotactic cells and bacteria to artificial micro-swimmers [1]. One potential application of active Brownian particles is using them as shuttles to transport loads within liquid environments. The central issue is to accomplish effective loading and unloading schemes which are independent of specific interaction forces. Here we suggest a novel mechanism which only requires steric interactions and is based on a U-shaped swimmer which is fabricated by photolithography. By reversing the direction of motion, we expect that a load can be picked up and released easily. Apart from understanding the pickup and release on a microscopic scale, we also want to investigate how such swimmers can lead to the redistribution of passive particles depending on the choice of the applied swimming protocol.

[1] Buttinoni, Ivo, et al. "Active Brownian Motion tunable by light." 2012 J. Phys.: Condens. Matter 24 284129

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