282 citations · 492 across the 4 of their papers we have counts for
4 papers
Chemically active colloids near osmotic-responsive walls with surface-chemistry gradients
M. N. Popescu, W. E. Uspal, S. Dietrich
Chemically active colloids move by creating gradients in the composition of the surrounding solution and by exploiting the differences in their interactions with the various molecu…
Guiding catalytically active particles with chemically patterned surfaces
W. E. Uspal, M. N. Popescu, S. Dietrich +1
Catalytically active Janus particles suspended in solution create gradients in the chemical composition of the solution along their surfaces, as well as along any nearby container…
Rheotaxis of spherical active particles near a planar wall
W. E. Uspal, M. N. Popescu, S. Dietrich +1
For active particles the interplay between the self-generated hydrodynamic flow and an external shear flow, especially near bounding surfaces, can result in a rich behavior of the…
Self-propulsion of a catalytically active particle near a planar wall: from reflection to sliding and hovering
W. E. Uspal, M. N. Popescu, S. Dietrich +1
Micron-sized particles moving through solution in response to self-generated chemical gradients serve as model systems for studying active matter. Their far-reaching potential appl…