Dynamics of ethyl cellulose nanoparticle self-assembly at the interface of a nematic liquid crystal droplet

2017 ◽  
Vol 19 (36) ◽  
pp. 24955-24960 ◽  
Author(s):  
Yining Han ◽  
Navid Bizmark ◽  
Nasser Mohieddin Abukhdeir ◽  
Marios A. Ioannidis
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Self Assembly ◽  
Ethyl Cellulose ◽  
Crystal Water ◽  
General Methodology ◽  
Liquid Crystal Droplet

A general methodology for the assessment of nanoparticle adsorption at the liquid crystal–water interfaces.

scholarly journals Mechanisms of Chiral Transfer in Optically Active Dopant – Nematic Liquid Crystal Systems

2020 ◽  
Vol 20 (4) ◽  
pp. 6-26
Author(s):  
V. A. Burmistrov ◽  
V. V. Aleksandriiskii ◽  
I. V. Novikov ◽  
O. I. Koifman
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Self Assembly ◽  
Liquid Crystalline ◽  
High Efficiency ◽  
Stationary Phases ◽  
Theoretical Description ◽  
Optically Active ◽  
Axial Coordination ◽  
Chiral Dopants

Induction of helical mesophases by incorporating chiral dopants into the nematics matrix is the promising modern trends in the chemistry of liquid crystals. This process is associated with a unique phenomenon - an amplification of chirality in liquid-crystalline phases, which ensures the detection of enantiomers by their chiral induction, much more sensitive than other methods. The relevance of this approach is due to the need to create perspective electro-optical devices operating with ultra-low control voltages based on twist effects, chromatographic stationary phases with high chiral selectivity, flexible magnets, photo-sensitive nanostructures, and other smart LC materials. The successful solution of these problems is impossible without experimental research and theoretical comprehension of the mechanisms of third level chiral transfer optically active dopant – nematic liquid crystal. In the last decade, a large number of works have appeared on the solution of these problems. This review is devoted to a generalization of the experimental results and a theoretical description of the transfer of molecular chirality to orientationally ordered systems with the participation of both chiral molecular substituents with an asymmetric carbon atom and planar or quasi-planar fragments chirally distorted relative to each other. The stereochemical aspects of induction associated with the structural correspondences of the dopant and nematic liquid crystal, as well as the main classes of optically active additives, are discussed. Application of metal complexes, both Werner and macroheterocyclic, are presented. Special attention is paid to the results of the mechanisms study of chiral transfer due to various intermolecular interactions: hydrogen bonding, axial coordination, and the formation of inclusion compounds. The high efficiency of induction of spiral mesophases has been demonstrated with a combination of different self-assembly mechanisms in liquid crystal - chiral additive systems.

CARS Microscopic Observation of a Nematic Liquid Crystal Droplet in an Electric Field

2013 ◽  
Vol 63 (4) ◽  
pp. 466-472
Author(s):  
Jin-Soon PARK* ◽  
Jong-Hyun KIM ◽  
Eun Seong LEE ◽  
Ju Hyun PARK ◽  
Satoshi KAWATA
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Nematic Liquid Crystal ◽  
Microscopic Observation ◽  
Liquid Crystal Droplet

Study on concentric configuration of nematic liquid crystal droplet by Landau-de Gennes theory

2020 ◽  
Vol 47 (11) ◽  
pp. 1698-1707
Author(s):  
Jinbing Wu ◽  
He Ma ◽  
Sibo Chen ◽  
Xuan Zhou ◽  
Zhidong Zhang
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Liquid Crystal Droplet ◽  
Gennes Theory

Orientation, interaction and laser assisted self-assembly of organic single-crystal micro-sheets in a nematic liquid crystal

Soft Matter ◽  
2015 ◽  
Vol 11 (38) ◽  
pp. 7674-7679 ◽  
Author(s):  
M. V. Rasna ◽  
K. P. Zuhail ◽  
U. V. Ramudu ◽  
R. Chandrasekar ◽  
J. Dontabhaktuni ◽  
...  
Keyword(s):  
Experimental Study ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Single Crystal ◽  
Nematic Liquid Crystal ◽  
Self Assembly ◽  
Nematic Liquid Crystals ◽  
Directed Assembly ◽  
Orientation Interaction ◽  
Organic Single Crystal

In this paper we report first experimental study on the orientation, interaction and directed-assembly of single crystal micro-sheets in nematic liquid crystals.

scholarly journals Electrically reconfigurable split ring resonator covered by nematic liquid crystal droplet

2016 ◽  
Vol 24 (24) ◽  
pp. 27096 ◽  
Author(s):  
Kepeng Qiu ◽  
Ning Jia ◽  
Zijun Liu ◽  
Chen Wu ◽  
Yuancheng Fan ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Ring Resonator ◽  
Split Ring Resonator ◽  
Split Ring ◽  
Liquid Crystal Droplet

Self-Assembly of a Synthetic Opal Infiltrated with Liquid Crystal Like Photonic Crystal

2004 ◽  
Vol 97-98 ◽  
pp. 245-250
Author(s):  
Loreta Rasteniene ◽  
Stasys Pajeda ◽  
Rimas Vaisnoras
Keyword(s):  
Refractive Index ◽  
Liquid Crystal ◽  
Photonic Crystal ◽  
Nematic Liquid Crystal ◽  
Self Assembly ◽  
Stop Band ◽  
Linear Dichroism ◽  
Synthetic Opal ◽  
Multiple Diffraction ◽  
Visible Spectra

We have studied transmission and linear dichroism spectra of synthetic opal, refractive index n-= 1.342, infiltrated with nematic liquid crystal with averaged refractive index n = 1.596 or with water n = 1.30 and alcohol n = 1.28. We demonstrating that the position of the stop band in the visible spectra is shifted by changing infiltrated material, or temperature, or by variation angle of light incidence. Multiple diffraction are discussed.

Large Area Self-Assembly of Nematic Liquid-Crystal-Functionalized Gold Nanorods

2012 ◽  
Vol 23 (11) ◽  
pp. 1393-1403 ◽  
Author(s):  
S. Umadevi ◽  
Xiang Feng ◽  
Torsten Hegmann
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Gold Nanorods ◽  
Self Assembly ◽  
Large Area
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