ArticleProceedings of the National Academy of Sciences of the United States of America2018
Emulsion patterns in the wake of a liquid-liquid phase separation front.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Thermal-solutal-induced bistability of evaporating multicomponent liquid thin films.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Putting the Squeeze on Phase Separation.JACS Au · 2022Review
- Hierarchical microphase separation in non-conserved active mixtures.The European physical journal. E, Soft matter · 2021Article
- Phase Separation of an Evaporating Ternary Solution in a Hele-Shaw Cell.Langmuir : the ACS journal of surfaces and colloids · 2021Article
- Non-associative phase separation in an evaporating droplet as a model for prebiotic compartmentalization.Nature communications · 2021Article
- On explosive boiling of a multicomponent Leidenfrost drop.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
Corrections and comments
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Authors and funding
4 authors.
Funding
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Abstract
Miscible liquids can phase separate in response to a composition change. In bulk fluids, the demixing begins on molecular-length scales, which coarsen into macroscopic phases. By contrast, confining a mixture in microfluidic droplets causes sequential phase separation bursts, which self-organize into rings of oil and water to make multilayered emulsions. The spacing in these nonequilibrium patterns is self-similar and scale-free over a range of droplet sizes. We develop a modified Cahn-Hilliard model, in which an immiscibility front with stretched exponential dynamics quantitatively predicts the spacing of the layers. In addition, a scaling law predicts the lifetime of each layer, giving rise to a stepwise release of inner droplets. Analogously, in long rectangular capillaries, a diffusive front yields large-scale oil and water stripes on the time scale of hours. The same theory relates their characteristic length scale to the speed of the front and the rate of mass transport. Control over liquid-liquid phase separation into large-scale patterns finds potential material applications in living cells, encapsulation, particulate design, and surface patterning.
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