Results 31 to 40 of about 3,056 (193)
Orientational order of motile defects in active nematics. [PDF]
Nat Mater, 2015 DeCamp SJ +4 more
europepmc +2 more sources
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
doaj +1 more source
Active nematics on flat surfaces: From droplet motility and scission to active wetting
Physical Review Research, 2023 We consider the dynamics of active nematics droplets on flat surfaces, based on the continuum hydrodynamic theory. We investigate a wide range of dynamical regimes as a function of the activity and droplet size on surfaces characterized by strong ...
Rodrigo C. V. Coelho +2 more
doaj +1 more source
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
doaj +1 more source
Self-propulsive active nematics. [PDF]
Philos Trans A Math Phys Eng SciIncreasing evidence suggests that active matter exhibits instances of mixed symmetry that cannot be fully described by either polar or nematic formalism. Here, we introduce a minimal model that integrates self-propulsion into the active nematic framework.
de Graaf Sousa N +3 more
europepmc +4 more sources
Active nematics with quenched disorder [PDF]
Physical Review E, 2020 We introduce a two-dimensional active nematic with quenched disorder. We write the coarse-grained hydrodynamic equations of motion for slow variables, viz. density, and orientation. Disorder strength is tuned from zero to large values. Results from the numerical solution of equations of motion as well as the calculation of two-point orientation ...
Sameer Kumar, Shradha Mishra
openaire +3 more sources
Machine learning forecasting of active nematics [PDF]
Soft Matter, 2021 Our model is unrolled to map an input orientation sequence (from time t-8 to t-1) to an output one (t,t + 1…) with trajectray tracing. Cyan labels are −1/2 defect while purple ones are +1/2.
Zhengyang Zhou +8 more
openaire +3 more sources
Biphasic, Lyotropic, Active Nematics [PDF]
Physical Review Letters, 2014 7 pages, 8 ...
Matthew L. Blow +2 more
openaire +4 more sources
Active nematics with deformable particles
Soft Matter, 2023 We extend theories of active nematics to incorporate cell shape changes. Sufficiently active systems display regions of active, elongated cells coexisting with regions of passive, circular cells.
Hadjifrangiskou, I +2 more
openaire +4 more sources