Results 51 to 60 of about 4,761,499 (204)
Emergence of Radial Tree of Bend Stripes in Active Nematics
Physical Review X, 2019 Living liquid crystals, a realization of active nematics where a lyotropic liquid crystal is combined with active bacteria, exhibit a plethora of out-of-equilibrium phenomena that range from active turbulence and dynamic spatiotemporal patterns to the ...
Andrey Sokolov +4 more
doaj +2 more sources
Active Fréedericksz Transition in Active Nematic Droplets
Physical Review XActive nematic liquid crystals have the remarkable ability to spontaneously deform and flow in the absence of any external driving force. While living materials with orientational order, such as the mitotic spindle, can self-assemble in quiescent active ...
Salman Alam +8 more
doaj +3 more sources
Spontaneous flows and quantum analogies in heterogeneous active nematic films [PDF]
Communications PhysicsIncorporating the inherent heterogeneity of living systems into models of active nematics is essential to provide a more realistic description of biological processes such as bacterial growth, cell dynamics and tissue development.
Alexander J. H. Houston +1 more
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Defect dynamics in active nematics. [PDF]
Philos Trans A Math Phys Eng Sci, 2014 Topological defects are distinctive signatures of liquid crystals. They profoundly affect the viscoelastic behaviour of the fluid by constraining the orientational structure in a way that inevitably requires global changes not achievable with any set of local deformations.
Giomi L +4 more
europepmc +6 more sources
A nonequilibrium force can stabilize 2D active nematics [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2018 Ananyo Maitra +2 more
exaly +2 more sources
Active nematic multipoles: Flow responses and the dynamics of defects and colloids
Frontiers in Physics, 2023 We introduce a general description of localised distortions in active nematics using the framework of active nematic multipoles. We give the Stokesian flows for arbitrary multipoles in terms of differentiation of a fundamental flow response and describe ...
Alexander J. H. Houston +3 more
doaj +1 more source
Frontiers in Physics, 2022 Recent studies have shown that packings of cells, both eukaryotic cellular tissues and growing or swarming bacterial colonies, can often be understood as active nematic fluids.
Fabian Jan Schwarzendahl +3 more
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Active nematic emulsions [PDF]
Science Advances, 2018 Droplets of active fluid form a dynamically self-assembled material based on the cross-talk between active and passive defects.
Guillamat, Pau +5 more
openaire +4 more sources
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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Velocity Correlations in an Active Nematic [PDF]
Physical Review Letters, 2013 The flow properties of a continuum model for an active nematic is studied and compared with recent experiments on suspensions of microtubule bundles and molecular motors. The velocity correlation length is found to be independent of the strength of the activity while the characteristic velocity scale increases monotonically as the activity is increased,
Sumesh P. Thampi +2 more
openaire +4 more sources