412 citations · 936 across the 8 of their papers we have counts for
4 papers · 1 filter
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…
Active colloids in the context of chemical kinetics
G. Oshanin, M. N. Popescu, S. Dietrich
We study a mesoscopic model of a chemically active colloidal particle which on certain parts of its surface promotes chemical reactions in the surrounding solution. For reasons of…
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…
Topographical pathways guide chemical microswimmers
Juliane Simmchen, Jaideep Katuri, William E. Uspal +3
Achieving control over the directionality of active colloids is essential for their use in practical applications such as cargo carriers in microfluidic devices. So far, guidance o…