A columnar liquid crystal based on triphenylphosphine oxide—its structural changes upon interaction with alkaline metal cations

2006 ◽  
pp. 1277 ◽  
Author(s):  
Tsukasa Hatano ◽  
Takashi Kato
Keyword(s):  
Liquid Crystal ◽  
Structural Changes ◽  
Metal Cations ◽  
Triphenylphosphine Oxide ◽  
Alkaline Metal

scholarly journals Dual relaxation and structural changes under uniaxial strain in main-chain smectic-C liquid crystal elastomer

2015 ◽  
Vol 17 (1) ◽  
pp. 191-199 ◽  
Author(s):  
Dena M. Agra-Kooijman ◽  
Michael R. Fisch ◽  
Leela Joshi ◽  
Wanting Ren ◽  
Philip J. McMullan ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Relaxation Rate ◽  
Structural Changes ◽  
Main Chain ◽  
Uniaxial Strain ◽  
Liquid Crystal Elastomer ◽  
Smectic C ◽  
Dual Relaxation

Relaxation rate of the chevron angle, α becomes about ten times faster at strains exceeding 0.7 than at low strains.

Structural changes through phase transitions in liquid-crystal polymers: 1. A spectroscopic study of polyesters

Polymer ◽  
1991 ◽  
Vol 32 (9) ◽  
pp. 1555-1565 ◽  
Author(s):  
Elisabetta Galbiati ◽  
Giuseppe Zerbi ◽  
Enzo Benedetti ◽  
Emo Chiellini
Keyword(s):  
Phase Transitions ◽  
Liquid Crystal ◽  
Spectroscopic Study ◽  
Structural Changes ◽  
Liquid Crystal Polymers

Influence of amphotericin B on liquid crystal state of the Cholesterol/Dipalmitoylphosphatidylcholine monolayer in the presence of different metal cations

2016 ◽  
Vol 25 (9) ◽  
pp. 090505 ◽  
Author(s):  
Juan Wang ◽  
Rui-Xin Shi ◽  
Run-Guang Sun ◽  
Chang-Chun Hao ◽  
Jun-Hua Li ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Amphotericin B ◽  
Metal Cations ◽  
Crystal State

Heteroleptic triple-decker terbium(III) (porphyrinato)(crownphthalocyaninate) as an efficient receptor of alkaline metal cations

2013 ◽  
Vol 49 (2) ◽  
pp. 173-180 ◽  
Author(s):  
K. P. Birin ◽  
K. A. Kamarova ◽  
Yu. G. Gorbunova ◽  
A. Yu. Tsivadze
Keyword(s):  
Metal Cations ◽  
Alkaline Metal

scholarly journals Twisting DNA by Salt

2021 ◽  
Author(s):  
Sergio Cruz-Le&oacuten ◽  
Willem Vanderlinden ◽  
Peter Müller ◽  
Tobias Forster ◽  
Georgina Staudt ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Charge Density ◽  
Molecular Dynamics Simulations ◽  
Structural Changes ◽  
Dna Nanotechnology ◽  
Metal Cations ◽  
Ion Concentration ◽  
Preferential Binding ◽  
Dynamics Simulations ◽  
Dna Twist

DNA structure and properties sensitively depend on its environment, in particular on the ion atmosphere. One of the most fundamental properties of DNA is its helicity and here we investigate how it changes with concentration and identity of the surrounding ions. To resolve how metal cations influence the helical twist, we have combined magnetic tweezer experiments and extensive all-atom molecular dynamics simulations. Two interconnected trends are observed for monovalent alkali and divalent alkaline earth cations. First, DNA twist increases with increasing ion concentration. Secondly, for a given salt concentration, DNA twist strongly depends on cation identity. Metal cations with high charge density (such as Li+ or Ca2+) are most efficient at inducing DNA twist and lead to overwinding. By contrast, metals with intermediate charge density (such as Na+ or Ba2+) reduce the twist and underwind the helix compared to higher density ions. Our molecular dynamics simulations reveal that preferential binding of the metals to the DNA backbone and the nucleobases has opposing effects on DNA twist and provide a microscopic explanation of the observed ion specificity. The comprehensive view gained from our combined approach provides a foundation to understand and predict metal-induced structural changes in nature or in DNA nanotechnology.

Dynamics of hexafluoroanions in complexes of tin and titanium with mixed alkaline metal cations

1998 ◽  
Vol 39 (1) ◽  
pp. 49-52 ◽  
Author(s):  
V. Ya. Kavun
Keyword(s):  
Metal Cations ◽  
Alkaline Metal

Effect of alkaline metal cations on the ionic structure of cryolite melts: Ab-initio NpT MD study

2018 ◽  
Vol 148 (6) ◽  
pp. 064501 ◽  
Author(s):  
Tomáš Bučko ◽  
František Šimko
Keyword(s):  
Ab Initio ◽  
Metal Cations ◽  
Ionic Structure ◽  
Alkaline Metal
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