气候变化领域集成服务门户(CCPortal): A nonequilibrium force can stabilize 2D active nematics

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DOI	10.1073/pnas.1720607115
	A nonequilibrium force can stabilize 2D active nematics
	Maitra A.; Srivastava P.; Cristina Marchetti M.; Lintuvuori J.S.; Ramaswamy S.; Lenz M.
发表日期	2018
ISSN	0027-8424
起始页码	6934
结束页码	6939
卷号	115 期号:27
英文摘要	Suspensions of actively driven anisotropic objects exhibit distinctively nonequilibrium behaviors, and current theories predict that they are incapable of sustaining orientational order at high activity. By contrast, here we show that nematic suspensions on a substrate can display order at arbitrarily high activity due to a previously unreported, potentially stabilizing active force. This force moreover emerges inevitably in theories of active orientable fluids under geometric confinement. The resulting nonequilibrium ordered phase displays robust giant number fluctuations that cannot be suppressed even by an incompressible solvent. Our results apply to virtually all experimental assays used to investigate the active nematic ordering of self-propelled colloids, bacterial suspensions, and the cytoskeleton and have testable implications in interpreting their nonequilibrium behaviors. © 2018 National Academy of Sciences. All Rights Reserved.
英文关键词	Active matter; Confined active nematics; Living liquid crystals
语种	英语
scopus关键词	solvent; anisotropy; Article; assay; colloid; cytoskeleton; dynamics; flow kinetics; force; geometry; homeostasis; mechanics; nematics; nonequilibrium; priority journal; suspension
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160499
作者单位	Maitra, A., LPTMS, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, 91405, France; Srivastava, P., Theoretical Physics of Biology Laboratory, Francis Crick Institute, London, NW1 1AT, United Kingdom; Cristina Marchetti, M., Physics Department, Soft and Living Matter Program, Syracuse University, Syracuse, NY 13244, United States; Lintuvuori, J.S., Université Bordeaux, CNRS, LOMA, UMR 5798, Talence, F-33405, France; Ramaswamy, S., Tata Institute of Fundamental Research Centre for Interdisciplinary Sciences, Hyderabad, 500107, India, Centre for Condensed Matter Theory, Department of Physics, Indian Institute of Science, Bangalore, 560012, India; Lenz, M., LPTMS, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, 91405, France, MultiScale Material Science for Energy and Environment, Unité Mixte Internationale 3466, CNRS-Massachusetts Institute of Technology, Cambridge, MA 02139, United States
推荐引用方式 GB/T 7714	Maitra A.,Srivastava P.,Cristina Marchetti M.,et al. A nonequilibrium force can stabilize 2D active nematics[J],2018,115(27).
APA	Maitra A.,Srivastava P.,Cristina Marchetti M.,Lintuvuori J.S.,Ramaswamy S.,&Lenz M..(2018).A nonequilibrium force can stabilize 2D active nematics.Proceedings of the National Academy of Sciences of the United States of America,115(27).
MLA	Maitra A.,et al."A nonequilibrium force can stabilize 2D active nematics".Proceedings of the National Academy of Sciences of the United States of America 115.27(2018).