324 citations · 1.7k across the 14 of their papers we have counts for
14 papers
Dynamical Theory of the Inverted Cheerios Effect
Anupam Pandey, Stefan Karpitschka, Luuk A. Lubbers +5
Recent experiments have shown that liquid drops on highly deformable substrates exhibit mutual interactions. This is similar to the Cheerios effect, the capillary interaction of so…
Mixing by Unstirring: Hyperuniform Dispersion of Interacting Particles upon Chaotic Advection
Joost H. Weijs, Denis Bartolo
We show how to achieve both fast and hyperuniform dispersions of particles in viscous fluids. To do so, we first extend the concept of critical random organization to chaotic drive…
Inverted Cheerios effect: Liquid drops attract or repel by elasto-capillarity
S. Karpitschka, A. Pandey, L. A. Lubbers +5
Solid particles floating at a liquid interface exhibit a long-ranged attraction mediated by surface tension. In the absence of bulk elasticity, this is the dominant lateral interac…
Emergent hyperuniformity in periodically-driven emulsions
Joost H. Weijs, Raphaël Jeanneret, Rémi Dreyfus +1
We report the emergence of large-scale hyperuniformity in microfluidic emulsions. Upon periodic driving confined emulsions undergo a first-order transition from a reversible to an…
Drops on soft solids: Free energy and double transition of contact angles
Luuk A. Lubbers, Joost H. Weijs, Lorenzo Botto +3
The equilibrium shape of liquid drops on elastic substrates is determined by minimising elastic and capillary free energies, focusing on thick incompressible substrates. The proble…
Capillarity of soft amorphous solids: a microscopic model for surface stress
Joost H. Weijs, Jacco H. Snoeijer, Bruno Andreotti
The elastic deformation of a soft solid induced by capillary forces crucially relies on the excess stress inside the solid-liquid interface. While for a liquid-liquid interface thi…