Regensburg 2019 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 64: Active Matter III (joint session BP/CPP/DY)
CPP 64.10: Talk
Friday, April 5, 2019, 11:45–12:00, H11
High-motility visible light-driven Ag/AgCl Janus microswimmers interacting with passive beads — •xu wang1, larysa baraban2, vyacheslav r misko3,4, franco nori4,5, petre formanek6, tao huang2, gianaurelio cuniberti2, jürgen fassbender1, and denys makarov1 — 1Helmholtz-Zentrum Dresden-Rossendorfe.V., Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany — 2Technische Universität Dresden, 01062 Dresden, Germany — 3Universiteit Antwerpen, B-2610 Antwerpen, Belgium — 4RIKEN Cluster for Pioneering Research, 351-0198 Saitama, Japan — 5University of Michigan, 48109-1040 Michigan, USA — 6Leibniz-Institut für Polymerforschung Dresden e.V., 01069 Dresden, Germany
Visible light driven nano/micro swimmers typically show mean squared displacement (MSD) values in the range of up to 200 µm2 (over 10 s) under favorable UV light illumination.[1] Here, we demonstrate Ag/AgCl-based spherical Janus micromotors that reveal an efficient propulsion with a MSD to 3000 µm2 (over 10 s) in pure H2O under visible blue light illumination (λ = 450-490 nm).[2] Furthermore, we show the micromotors reveal efficient exclusion effect to their surrounding passive polystyrene beads in pure H2O experimentally and using numerical simulations of the Langevin equations.[3]
1. Simmchen, J., et al., ChemNanoMat 2017, 3, 65.
2. Wang, X., et al., Small DOI: 10.1002/smll.201803613.
3. Wang, X., et al., Small 2018, 14, 1802537 (Frontispiece paper)