Results 71 to 80 of about 4,761,499 (204)
Biphasic, Lyotropic, Active Nematics [PDF]
Physical Review Letters, 2014 7 pages, 8 ...
Matthew L. Blow +2 more
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Defect-mediated dynamics of coherent structures in active nematics [PDF]
Nature Physics, 2021 Active fluids, such as cytoskeletal filaments, bacterial colonies and epithelial cell layers, exhibit distinctive orientational coherence, often characterized by nematic order and its breakdown, defined by the presence of topological defects. In contrast,
M. Serra +4 more
semanticscholar +1 more source
Statistical properties of autonomous flows in 2D active nematics. [PDF]
Soft Matter, 2019 We study the dynamics of a tunable 2D active nematic liquid crystal composed of microtubules and kinesin motors confined to an oil–water interface. Kinesin motors continuously inject mechanical energy into the system through ATP hydrolysis, powering the ...
Lemma LM +4 more
europepmc +2 more sources
Active turbulence in active nematics [PDF]
The European Physical Journal Special Topics, 2016 Dense, active systems show active turbulence, a state characterised by flow fields that are chaotic, with continually changing velocity jets and swirls. Here we review our current understanding of active turbulence. The development is primarily based on the theory and simulations of active liquid crystals, but with accompanying summaries of related ...
S.P. Thampi, J.M. Yeomans
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Active nematic–isotropic interfaces in channels [PDF]
Soft Matter, 2019 The hydrodynamic behavior of the interface between nematic (N) and isotropic (I) phases of a confined active liquid crystal is investigated using numerical simulations.
Rodrigo C. V. Coelho +2 more
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Hydrodynamic Effects in Oscillatory Active Nematics [PDF]
, 2017 Oscillatory active nematics represent nonequilibrium suspensions of microscopic objects, such as natural or artificial molecular machines, that cyclically change their shapes and thus operate as oscillating force dipoles.
Yuki Koyano +5 more
core +1 more source
Defect Line Coarsening and Refinement in Active Nematics. [PDF]
Physical Review Letters, 2022 Active matter is naturally out of equilibrium which results in the emergence of diverse dynamic steady states, including the omnipresent chaotic state known as the active turbulence.
Nika Kralj, M. Ravnik, Žiga Kos
semanticscholar +1 more source
Defect order in active nematics on a curved surface
New Journal of Physics, 2020 We investigate the effects of extrinsic curvature on the turbulent behavior of a 2D active nematic confined to the surface of a cylinder. The surface of a cylinder has no intrinsic curvature and only extrinsic curvature.
D J G Pearce
doaj +1 more source
Passive Janus particles are self-propelled in active nematics
New Journal of Physics, 2022 While active systems possess notable potential to form the foundation of new classes of autonomous materials (Zhang et al 2021 Nat. Rev. Mater. 6 437), designing systems that can extract functional work from active surroundings has proven challenging. In
Benjamin Loewe, Tyler N Shendruk
doaj +1 more source
Active Nematic Defects and Epithelial Morphogenesis
Physical Review Letters, 2022 Inspired by recent experiments that highlight the role of nematic defects in the morphogenesis of epithelial tissues, we develop a minimal framework to study the dynamics of an active curved surface driven by its nematic texture. Allowing the surface to evolve via relaxational dynamics leads to a theory linking nematic defect dynamics, cellular ...
Farzan Vafa, L. Mahadevan
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