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2025-03-07

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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/228507

Activity-driven emulsification of phase-separating binary mixture

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Recurs relacionat

https://doi.org/10.1103/PhysRevLett.134.098301

Resum

Active particles self-assemble into emergent structures that respond sensitively to external constraints. Consequently, their behavior under confinement is complex, especially in soft confined media, leading to diverse emergent morphologies. Through computer simulations, we investigate the dynamical interplay between active Brownian particles and a binary mixture. Our results show that active particles stabilize nonequilibrium morphologies, arresting coarsening by exerting active pressure that competes with surface tension. For moderate activities, particles stabilize an active emulsion with a well-defined droplet size. At higher activities, when particles can cross the liquid domains, a dynamic emulsion with large droplet dispersion is sustained. Furthermore, active particles drive phase-separated mixtures away from equilibrium configurations, demonstrating a rich coassembly behavior due to competing energy scales in the system.

Matèries

Emulsions, Moviment brownià

Matèries (anglès)

Emulsions, Brownian movements

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Articles publicats en revistes (Física de la Matèria Condensada)

Citació

DIAZ, Javier and PAGONABARRAGA MORA, Ignacio. Activity-driven emulsification of phase-separating binary mixture. Physical Review Letters. 2025. Vol. 134, num. 1-6. ISSN 0031-9007. [consulted: 2 of July of 2026]. Available at: https://hdl.handle.net/2445/228507

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