405 citations · 731 across the 5 of their papers we have counts for
5 papers
Disturbance observer-based tracking control for roll-to-roll slot die coating systems under gap and pump rate disturbances
Zezhi Tang, Christopher Passmore, Andrew I Campbell +4
Roll-to-roll slot die coating is a widely used industrial manufacturing technique applied in a diverse range of applications such as the production of lithium-ion batteries, solar…
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…
Three-dimensional Binary Superlattices of Oppositely-charged Colloids
Paul Bartlett, Andrew Campbell
We report the equilibrium self-assembly of binary crystals of oppositely-charged colloidal microspheres at high density. By varying the magnitude of the charge on near equal-sized…
Dynamical Arrest in Attractive Colloids: The Effect of Long-Range Repulsion
Andrew I. Campbell, Valerie J. Anderson, Jeroen S. van Duijneveldt +1
We study gelation in suspensions of model colloidal particles with short-ranged attractive and long-ranged repulsive interactions by means of three-dimensional fluorescence confoca…