Results 21 to 30 of about 3,171,010 (214)
Active nematic emulsions. [PDF]
Sci Adv, 2018 Droplets of active fluid form a dynamically self-assembled material based on the cross-talk between active and passive defects.
Guillamat P +5 more
europepmc +6 more sources
Dynamical arrest in active nematic turbulence [PDF]
Physical Review ResearchActive fluids display spontaneous turbulentlike flows known as active turbulence. Recent work revealed that these flows have universal features, independent of the material properties and of the presence of topological defects.
Ido Lavi +3 more
doaj +3 more sources
Machine learning active-nematic hydrodynamics. [PDF]
Proc Natl Acad Sci U S A, 2021 Hydrodynamic theories effectively describe many-body systems out of equilibrium in terms of a few macroscopic parameters. However, such parameters are difficult to determine from microscopic information. Seldom is this challenge more apparent than in active matter, where the hydrodynamic parameters are in fact fields that encode the distribution of ...
Colen J +13 more
europepmc +8 more sources
Enhanced Actuation Stability of Liquid Crystal Elastomer Actuators With Diels-Alder Dynamic Bonds. [PDF]
SmallBy leveraging furan substitution, enhanced thermal stability during actuation of liquid crystal elastomers (LCEs) with Diels–Alder dynamic (DA) bonds was achieved. This work demonstrates that 3‐substituted furan broadens the actuation window of LCEs with DA bonds and enables superior thermomechanical stability and cycling performance at elevated ...
Stamatis K +8 more
europepmc +2 more sources
Electric field effects on nematic wetting layers [PDF]
, 2005 We present a theoretical investigation of the temperature and electric field dependence of nematic liquid crystal wetting layers close to an aligning substrate within a confined system.
Mottram, N.J., Ramage, A., Kelly, G.
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Flexoelectric polarisation effects in nematic liquid crystal phase gratings [PDF]
, 2008 Nematic phase gratings have been studied in which a planar nematic layer of thickness 17.2 μm is sandwiched between two glass substrates coated with an alignment polymer.
Mottram, N.J. +3 more
core +4 more sources
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.
Weiqiang Wang, Rui Zhang
doaj +1 more source
Nature Communications, 2018 AbstractActive matter extracts energy from its surroundings at the single particle level and transforms it into mechanical work. Examples include cytoskeleton biopolymers and bacterial suspensions. Here, we review experimental, theoretical and numerical studies of active nematics - a type of active system that is characterised by self-driven units with
Doostmohammadi, A +3 more
openaire +5 more sources
Mesoscopic simulations of active nematics
Science Advances, 2022 Coarse-grained, mesoscale simulations are invaluable for studying soft condensed matter because of their ability to model systems in which a background solvent plays a substantial role but is not the primary interest. Such methods generally model passive solvents; however, far-from-equilibrium systems may also be composed of complex solutes suspended ...
Kozhukhov, Timofey, Shendruk, Tyler N.
openaire +3 more sources
Interferometric method for determining the sum of the flexoelectric coefficients (e1+e3) in an ionic nematic material [PDF]
, 2008 The time-dependent periodic distortion profile in a nematic liquid crystal phase grating has been measured from the displacement of tilt fringes in a Mach-Zehnder interferometer.
Mottram, N.J. +3 more
core +4 more sources