Active motion of multiphase oil droplets: emergent dynamics of squirmers with evolving internal structure.
Active motion of multiphase oil droplets: emergent dynamics of squirmers with evolving internal structure.
复制标题
多相油滴的主动运动:具有不断变化的内部结构的蠕动物的涌现动力学。
作者:
Xin Wang;Rui Zhang;A. Mozaffari;J. D. de Pablo;N. Abbott
Synthetic soft matter systems, when driven beyond equilibrium by active processes, offer the potential to achieve dynamical states and functions of a complexity found in living matter. Emulsions offer the basis of a simple yet versatile system for identification of the physicochemical principles underlying active soft matter, but how multiple internal phases within emulsion droplets (e.g., Janus morphologies) organize to impact emergent dynamics is not understood. Here, we create multiphase oil droplets with ultralow interfacial tensions but distinct viscosities, and drive them into motion in aqueous micellar solutions. Preferential solubilization of select components of the oil both drives the droplet motion and yields a progression of internal phase morphological states with distinct symmetries. We find the active droplets to exhibit five dynamical states during morphogenesis. By quantifying microscopic flow fields, we show that it is possible to map the diverse droplet behaviors to squirmer models of spherical microswimmers in Stokes flow, thus showing that multiphase droplets offer the basis of a versatile platform with which to study and engineer the hydrodynamics of microswimmers.
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DOI:
10.1103/physreve.90.013010
发表时间:
2014-07
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
Li GJ;Ardekani AM
通讯作者:
Ardekani AM
DOI:
10.1073/pnas.1922198117
发表时间:
2020
期刊:
Proceedings of the National Academy of Sciences
影响因子:
--
作者:
Sohn, Hayley R. O.;Smalyukh, Ivan I.
通讯作者:
Smalyukh, Ivan I.
影响因子:
8.6
作者:
Krueger, Carsten;Kloes, Gunnar;Maass, Corinna C.
通讯作者:
Maass, Corinna C.
影响因子:
5.5
作者:
Li, Menglin;Brinkmann, Martin;Fleury, Jean-Baptiste
通讯作者:
Fleury, Jean-Baptiste
DOI:
10.1073/pnas.1805932115
发表时间:
2018-11-27
影响因子:
11.1
作者:
Chin, Amanda S.;Worley, Kathryn E.;Wan, Leo Q.
通讯作者:
Wan, Leo Q.