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15 papers · 2 filters
Solid Capillarity: When and How does Surface Tension Deform Soft Solids?
Bruno Andreotti, Oliver Baeumchen, Francois Boulogne +6
Soft solids differ from stiff solids in an important way: their surface stresses can drive large deformations. Based on a topical workshop held in the Lorentz Center in Leiden, thi…
Waltzing route towards double-helix formation in cholesteric shells
Alexandre Darmon, Michael Benzaquen, Olivier Dauchot +1
We study cholesteric order in liquid crystal shells with planar degenerate anchoring. We observe that the bipolar and radial configurations intensively reported for bulk droplets h…
Hiding in plain view: Colloidal self-assembly from polydisperse populations
Bernard Cabane, Joaquim Li, Franck Artzner +5
We report small-angle x-ray scattering (SAXS) experiments on aqueous dispersions of colloidal silica with a broad monomodal size distribution (polydispersity 18%, size 8 nm). Over…
Manipulating bubbles with secondary Bjerknes forces
Maxime Lanoy, Caroline Derec, Arnaud Tourin +1
Gas bubbles in a sound field are submitted to a radiative force, known as the secondary Bjerknes force. We propose an original experimental setup that allows us to investigate in d…
Multiscale Stick-Slip Dynamics of Adhesive Tape Peeling
Marie-Julie Dalbe, Pierre-Philippe Cortet, Matteo Ciccotti +2
Using a high-speed camera, we follow the propagation of the detachment front during the peeling of an adhesive tape from a flat surface. In a given range of peeling velocity, this…
The range and nature of effective interactions in hard-sphere solids
Michael Schindler, A. C. Maggs
Colloidal systems observed in video microscopy are often analysed using the displacements correlation matrix of particle positions. In non-thermal systems, the inverse of this matr…