Morphology of Active Deformable 3D Droplets

We numerically investigate the morphology and disclination line dynamics of active nematic droplets in three dimensions. Although our model incorporates only the simplest possible form of achiral active stress, active nematic droplets display an unprecedented range of complex morphologies. For exten...

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Autores principales:	Liam J. Ruske, Julia M. Yeomans
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/5f159a2b78694d78ba0579de984b6b9d
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spelling	oai:doaj.org-article:5f159a2b78694d78ba0579de984b6b9d2021-12-02T13:54:42ZMorphology of Active Deformable 3D Droplets10.1103/PhysRevX.11.0210012160-3308https://doaj.org/article/5f159a2b78694d78ba0579de984b6b9d2021-04-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.021001http://doi.org/10.1103/PhysRevX.11.021001https://doaj.org/toc/2160-3308We numerically investigate the morphology and disclination line dynamics of active nematic droplets in three dimensions. Although our model incorporates only the simplest possible form of achiral active stress, active nematic droplets display an unprecedented range of complex morphologies. For extensile activity, fingerlike protrusions grow at points where disclination lines intersect the droplet surface. For contractile activity, however, the activity field drives cup-shaped droplet invagination, run-and-tumble motion, or the formation of surface wrinkles. This diversity of behavior is explained in terms of an interplay between active anchoring, active flows, and the dynamics of the motile disclination lines. We discuss our findings in the light of biological processes such as morphogenesis, collective cancer invasion, and the shape control of biomembranes, suggesting that some biological systems may share the same underlying mechanisms as active nematic droplets.Liam J. RuskeJulia M. YeomansAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 2, p 021001 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Liam J. Ruske Julia M. Yeomans Morphology of Active Deformable 3D Droplets
description	We numerically investigate the morphology and disclination line dynamics of active nematic droplets in three dimensions. Although our model incorporates only the simplest possible form of achiral active stress, active nematic droplets display an unprecedented range of complex morphologies. For extensile activity, fingerlike protrusions grow at points where disclination lines intersect the droplet surface. For contractile activity, however, the activity field drives cup-shaped droplet invagination, run-and-tumble motion, or the formation of surface wrinkles. This diversity of behavior is explained in terms of an interplay between active anchoring, active flows, and the dynamics of the motile disclination lines. We discuss our findings in the light of biological processes such as morphogenesis, collective cancer invasion, and the shape control of biomembranes, suggesting that some biological systems may share the same underlying mechanisms as active nematic droplets.
format	article
author	Liam J. Ruske Julia M. Yeomans
author_facet	Liam J. Ruske Julia M. Yeomans
author_sort	Liam J. Ruske
title	Morphology of Active Deformable 3D Droplets
title_short	Morphology of Active Deformable 3D Droplets
title_full	Morphology of Active Deformable 3D Droplets
title_fullStr	Morphology of Active Deformable 3D Droplets
title_full_unstemmed	Morphology of Active Deformable 3D Droplets
title_sort	morphology of active deformable 3d droplets
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/5f159a2b78694d78ba0579de984b6b9d
work_keys_str_mv	AT liamjruske morphologyofactivedeformable3ddroplets AT juliamyeomans morphologyofactivedeformable3ddroplets
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Morphology of Active Deformable 3D Droplets

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