ArticleProceedings of the National Academy of Sciences of the United States of America2024
Asymmetric fluctuations and self-folding of active interfaces.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Bacterial turbulence drives interfacial waves and shape dynamics in phase-separated droplets.Nature communications · 2026Article
- Asymmetric fluctuations and self-folding of active interfaces.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
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7 authors.
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Abstract
We study the structure and dynamics of the interface separating a passive fluid from a microtubule-based active fluid. Turbulent-like active flows power giant interfacial fluctuations, which exhibit pronounced asymmetry between regions of positive and negative curvature. Experiments, numerical simulations, and theoretical arguments reveal how the interface breaks up the spatial symmetry of the fundamental bend instability to generate local vortical flows that lead to asymmetric interface fluctuations. The magnitude of interface deformations increases with activity: In the high activity limit, the interface self-folds invaginating passive droplets and generating a foam-like phase, where active fluid is perforated with passive droplets. These results demonstrate how active stresses control the structure, dynamics, and break-up of soft, deformable, and reconfigurable liquid-liquid interfaces.
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