209 citations · 357 across the 3 of their papers we have counts for
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Experimental Observation of Flow Fields Around Active Janus Spheres
Andrew I. Campbell, Stephen J. Ebbens, Pierre Illien +1
The hydrodynamic flow field around a catalytically active colloid is probed using particle tracking velocimetry both in the freely swimming state and when kept stationary with an e…
Helical paths, gravitaxis, and separation phenomena for mass-anisotropic self-propelling colloids: experiment versus theory
Andrew I. Campbell, Raphael Wittkowski, Borge ten Hagen +2
The self-propulsion mechanism of active colloidal particles often generates not only translational but also rotational motion. For particles with an anisotropic mass density under…
Electrokinetic Effects in Catalytic Pt-Insulator Janus Swimmers
S. Ebbens, D. A. Gregory, G. Dunderdale +4
The effect of added salt on the propulsion of Janus platinum-polystyrene colloids in hydrogen peroxide solution is studied experimentally. It is found that micromolar quantities of…