ArticleProceedings of the National Academy of Sciences of the United States of America2016
Soluto-inertial phenomena: Designing long-range, long-lasting, surface-specific interactions in suspensions.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Upper Bounds on the Colloid Separation Efficiency of Diffusiophoresis.Langmuir : the ACS journal of surfaces and colloids · 2026Article
- Controlling the Dynamic Behavior of Microposts in Solution via Diffusion-Convection.Langmuir : the ACS journal of surfaces and colloids · 2025Article
- Diffusiophoretic Transport of Charged Colloids in Ionic Surfactant Gradients Entirely below versus Entirely above the Critical Micelle Concentration.Langmuir : the ACS journal of surfaces and colloids · 2024Article
- Diffusiophoresis-enhanced Turing patterns.Science advances · 2023Article
- Unidirectional drying of a suspension of diffusiophoretic colloids under gravity.RSC advances · 2023Article
- A two-step strategy for delivering particles to targets hidden within microfabricated porous media.Science advances · 2021Article
- Diffusioosmotic and convective flows induced by a nonelectrolyte concentration gradient.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Long-range, selective, on-demand suspension interactions: Combining and triggering soluto-inertial beacons.Science advances · 2019Article
- Spontaneous Selective Preconcentration Leveraged by Ion Exchange and Imbibition through Nanoporous Medium.Scientific reports · 2019Article
- Universal nanodroplet branches from confining the Ouzo effect.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Steering colloidal particles over millimeter distances with soluto-inertial beacons.Proceedings of the National Academy of Sciences of the United States of America · 2016Article
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Abstract
Equilibrium interactions between particles in aqueous suspensions are limited to distances less than 1 μm. Here, we describe a versatile concept to design and engineer nonequilibrium interactions whose magnitude and direction depends on the surface chemistry of the suspended particles, and whose range may extend over hundreds of microns and last thousands of seconds. The mechanism described here relies on diffusiophoresis, in which suspended particles migrate in response to gradients in solution. Three ingredients are involved: a soluto-inertial "beacon" designed to emit a steady flux of solute over long time scales; suspended particles that migrate in response to the solute flux; and the solute itself, which mediates the interaction. We demonstrate soluto-inertial interactions that extend for nearly half a millimeter and last for tens of minutes, and which are attractive or repulsive, depending on the surface chemistry of the suspended particles. Experiments agree quantitatively with scaling arguments and numerical computations, confirming the basic phenomenon, revealing design strategies, and suggesting a broad set of new possibilities for the manipulation and control of suspended particles.
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