Results 1 to 10 of about 3,142,115 (200)
Nature Communications, 2018 Active matter systems are made up of self-driven components which extract energy from their surroundings to generate mechanical work. Here the authors review the subfield of active nematics and provide a comparison between theoretical findings and the ...
Amin Doostmohammadi +3 more
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Active boundary layers in confined active nematics [PDF]
Nature Communications, 2022 The boundary of conventional liquid crystals is known to anchor the orientational field of the passive materials under equilibrium conditions. Here, the authors show an active nematic to develop active boundary layers that topologically polarize the ...
Jerôme Hardoüin +5 more
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Interplay of Active Stress and Driven Flow in Self-Assembled, Tumbling Active Nematics
Crystals, 2021 Lyotropic chromonic liquid crystals (LCLCs) are a special type of hierarchical material in which self-assembled molecular aggregates are responsible for the formation of liquid crystal phases.
Rui Zhang, Weiqiang Wang
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Topological defects lead to energy transfer in active nematics [PDF]
Nature CommunicationsActive nematics are fluids in which the components have nematic symmetry and are driven out of equilibrium due to the microscopic generation of an active stress.
Daniel J. G. Pearce +3 more
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Braiding Dynamics in Active Nematics
Frontiers in Physics, 2022 In active matter systems, energy consumed at the small scale by individual agents gives rise to emergent flows at large scales. For 2D active nematic microtubule (ANMT) systems, these flows are largely characterized by the dynamics of mobile defects in ...
Spencer Ambrose Smith, Ruozhen Gong
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Activity drives self-assembly of passive soft inclusions in active nematics [PDF]
Nature CommunicationsActive nematics are out-of-equilibrium systems in which energy injection at the microscale drives emergent collective behaviors, from spontaneous flows to active turbulence.
Yusuf Sariyar +3 more
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Emergence of active nematics in chaining bacterial biofilms [PDF]
Nature Communications, 2019 Active nematics consist of elongated self-driven units and can emerge in bacterial systems. Here the authors investigate such emergence in a growing bacterial biofilm and demonstrate that localized stress and mechanical instabilities drive the formation ...
Yusuf Ilker Yaman +3 more
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Onset of meso-scale turbulence in active nematics [PDF]
Nature Communications, 2017 Bacteria continuously inject energy into their surroundings and thus induce chaotic like flows, namely meso-scale turbulence. Here, the authors show that transition to meso-scale turbulence and inertial turbulence observed in pipes share the same scaling
Amin Doostmohammadi +3 more
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Curvature controlled defect dynamics in topological active nematics [PDF]
Scientific Reports, 2017 We study the spatiotemporal patterns that emerge when an active nematic film is topologically constraint. These topological constraints allow to control the non-equilibrium dynamics of the active system.
Francesco Alaimo +2 more
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Energetic Variational Modeling of Active Nematics: Coupling the Toner–Tu Model with ATP Hydrolysis [PDF]
EntropyWe present a thermodynamically consistent energetic variational model for active nematics driven by ATP hydrolysis. Extending the classical Toner–Tu framework, we introduce a chemo-mechanical coupling mechanism in which the self-advection and ...
Yiwei Wang
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