Results 11 to 20 of about 926,324 (346)

Gram-to-Kilogram Scale-Up Synthesis of 2,2’-Diallylbisphenol through a Microchannel Reactor [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2023
A continuous-flow synthetic platform utilizing a microchannel reactor was developed here to realize the gram-to-kilogram scale-up synthesis of 2,2’-diallylbisphenol A (DABPA) via thermal Claisen rearrangement with high efficiency and safety.
Danyang Wan   +5 more
doaj   +1 more source

Electro-optical switching by liquid-crystal controlled metasurfaces [PDF]

open access: yes, 2013
We study the optical response of a metamaterial surface created by a lattice of split-ring resonators covered with a nematic liquid crystal and demonstrate millisecond timescale switching between electric and magnetic resonances of the metasurface.
Chigrin, Dmitry   +8 more
core   +1 more source

Realization of a four-electrode liquid crystal device with full in-plane director rotation [PDF]

open access: yes, 2007
A liquid crystal device with micrometer-scale hexagonal electrodes has been fabricated and characterized. By using weak anchoring at the liquid crystal interfaces, the orientation of the director is completely governed by the applied electric fields. The
Beeckman, Jeroen   +6 more
core   +1 more source

Artificial web of disclination lines in nematic liquid crystals

open access: yesNature Communications, 2017
Disclination lines are topological defects in molecular orientation widely found in liquid crystals. Here Wang et al. use a surface patterning technique to produce a very stable freestanding 3D array of ½ twist disclinations, which could be exploited in ...
Mengfei Wang   +2 more
doaj   +1 more source

Three-dimensional solitary waves with electrically tunable direction of propagation in nematics

open access: yesNature Communications, 2019
In a previous work, the authors have demonstrated the formation of localized waves in nematic liquid crystals driven by an electric field. Here they demonstrate the realization of solitary waves of (3+2)D type which can be steered along longitudinal and ...
Bing-Xiang Li   +4 more
doaj   +1 more source

Effect of ion trapping behavior of TiO2 nanoparticles on different parameters of weakly polar nematic liquid crystal

open access: yesJournal of Theoretical and Applied Physics, 2018
In the present investigation, TiO2-doped weakly polar nematic liquid crystal (NLC) has been studied. This study mainly focuses on dielectric, electro-optical and optical properties of pure NLC and doped systems.
Geeta Yadav   +3 more
doaj   +1 more source

Electrically driven three-dimensional solitary waves as director bullets in nematic liquid crystals

open access: yesNature Communications, 2018
Solitary waves which maintain their shape have many fascinating physical and mathematical properties. Here the authors observe waves trapped along three spatial dimensions in nematic liquid crystals due to an electric field and show that these director ...
Bing-Xiang Li   +6 more
doaj   +1 more source

Nuclear Magnetic Resonance Quantum Computing Using Liquid Crystal Solvents [PDF]

open access: yes, 1999
Liquid crystals offer several advantages as solvents for molecules used for nuclear magnetic resonance quantum computing (NMRQC). The dipolar coupling between nuclear spins manifest in the NMR spectra of molecules oriented by a liquid crystal permits a ...
Chuang, Isaac L.   +5 more
core   +3 more sources

Publisher Correction: Electrically driven three-dimensional solitary waves as director bullets in nematic liquid crystals

open access: yesNature Communications, 2018
The original version of this article contained an error in the description of Supplementary Movie 7, which incorrectly read ‘Collision resulting in annihilation of two solitons. U  = 45.1 V, f  = 600 Hz, T = 50 °C, d = 8.0 μm. The original movie is taken
Bing-Xiang Li   +6 more
doaj   +1 more source

Dynamic Control of Speed and Trajectories of Active Droplets in a Nematic Environment by Electric Field and Focused Laser Beam

open access: yesFrontiers in Physics, 2021
One objective of active matter science is to unveil principles by which chaotic microscale dynamics could be transformed into useful work. A nematic liquid crystal environment offers a number of possibilities, one of which is a directional motion of an ...
Mojtaba Rajabi   +7 more
doaj   +1 more source

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