globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1720607115
论文题名:
A nonequilibrium force can stabilize 2D active nematics
作者: Maitra A.; Srivastava P.; Cristina Marchetti M.; Lintuvuori J.S.; Ramaswamy S.; Lenz M.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2018
卷: 115, 期:27
起始页码: 6934
结束页码: 6939
语种: 英语
英文关键词: Active matter ; Confined active nematics ; Living liquid crystals
Scopus关键词: solvent ; anisotropy ; Article ; assay ; colloid ; cytoskeleton ; dynamics ; flow kinetics ; force ; geometry ; homeostasis ; mechanics ; nematics ; nonequilibrium ; priority journal ; suspension
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163696
Appears in Collections:气候变化与战略

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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

Recommended Citation:
Maitra A.,Srivastava P.,Cristina Marchetti M.,et al. A nonequilibrium force can stabilize 2D active nematics[J]. Proceedings of the National Academy of Sciences of the United States of America,2018-01-01,115(27)
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