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Diffusiophoretic manipulation of particles in a drop deposited on a hydrogel

Author(s): Boulogne, F; Shin, S; Dervaux, J; Limat, L; Stone, Howard A

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dc.contributor.authorBoulogne, F-
dc.contributor.authorShin, S-
dc.contributor.authorDervaux, J-
dc.contributor.authorLimat, L-
dc.contributor.authorStone, Howard A-
dc.date.accessioned2021-10-08T20:19:20Z-
dc.date.available2021-10-08T20:19:20Z-
dc.date.issued2017en_US
dc.identifier.citationBoulogne, F, Shin, S, Dervaux, J, Limat, L, Stone, HA. (2017). Diffusiophoretic manipulation of particles in a drop deposited on a hydrogel. Soft Matter, 13 (5122 - 5129. doi:10.1039/c7sm00915aen_US
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr1b287-
dc.description.abstractWe report an experimental study on the manipulation of colloidal particles in a drop sitting on a hydrogel. The manipulation is achieved by diffusiophoresis, which describes a directed motion of particles induced by solute gradients. By letting the solute concentrations for the drop and the hydrogel be different, we control the motion of particles in a stable suspension, which is otherwise difficult to achieve. We show that diffusiophoresis can cause the particles to move either toward or away from the liquid-air interface depending on the direction of the solute gradient and the surface charge of the particles. We measure the particle adsorption experimentally and rationalize the results with a one-dimensional numerical model. We show that diffusiophoretic motion is significant at the lengthscale of a drop deposited on a hydrogel, which suggests a simple method for the deposition of particles on hydrogels.en_US
dc.format.extent5122 - 5129en_US
dc.language.isoen_USen_US
dc.relation.ispartofSoft Matteren_US
dc.rightsAuthor's manuscripten_US
dc.titleDiffusiophoretic manipulation of particles in a drop deposited on a hydrogelen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1039/c7sm00915a-
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

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