气候变化领域集成服务门户(CCPortal): Topological structure and dynamics of three-dimensional active nematics

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DOI	10.1126/science.aba1136
	Topological structure and dynamics of three-dimensional active nematics
	Duclos G.; Adkins R.; Banerjee D.; Peterson M.S.E.; Varghese M.; Kolvin I.; Baskaran A.; Pelcovits R.A.; Powers T.R.; Baskaran A.; Toschi F.; Hagan M.F.; Streichan S.J.; Vitelli V.; Beller D.A.; Dogic Z.
发表日期	2020
ISSN	0036-8075
起始页码	1120
结束页码	1124
卷号	367 期号:6482
英文摘要	Topological structures are effective descriptors of the nonequilibrium dynamics of diverse many-body systems. For example, motile, point-like topological defects capture the salient features of two-dimensional active liquid crystals composed of energy-consuming anisotropic units. We dispersed force-generating microtubule bundles in a passive colloidal liquid crystal to form a three-dimensional active nematic. Light-sheet microscopy revealed the temporal evolution of the millimeter-scale structure of these active nematics with single-bundle resolution. The primary topological excitations are extended, charge-neutral disclination loops that undergo complex dynamics and recombination events. Our work suggests a framework for analyzing the nonequilibrium dynamics of bulk anisotropic systems as diverse as driven complex fluids, active metamaterials, biological tissues, and collections of robots or organisms. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	anisotropy microscopy temporal evolution three-dimensional modeling topology article excitation microscopy robotics
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133650
推荐引用方式 GB/T 7714	Duclos G.,Adkins R.,Banerjee D.,et al. Topological structure and dynamics of three-dimensional active nematics[J]. Science,2020,367(6482).
APA	Duclos G..,Adkins R..,Banerjee D..,Peterson M.S.E..,Varghese M..,...&Dogic Z..(2020).Topological structure and dynamics of three-dimensional active nematics.,367(6482).
MLA	Duclos G.,et al."Topological structure and dynamics of three-dimensional active nematics".367.6482(2020).