Stabilizer-Free Aqueous Two-Phase Copolymerization of Acrylamide and Cationic Monomer: Role of Electrostatic Interactions in the Phase Separation, Colloid Morphology, and Stability

2014 ◽  
Vol 53 (38) ◽  
pp. 14664-14672 ◽  
Author(s):  
Kuanxiang Shang ◽  
Guorong Shan ◽  
Pengju Pan
Keyword(s):  
Phase Separation ◽  
Electrostatic Interactions ◽  
Two Phase ◽  
Cationic Monomer

scholarly journals Liquid–liquid phase separation of tau protein: The crucial role of electrostatic interactions

2019 ◽  
Vol 294 (29) ◽  
pp. 11054-11059 ◽  
Author(s):  
Solomiia Boyko ◽  
Xu Qi ◽  
Tien-Hao Chen ◽  
Krystyna Surewicz ◽  
Witold K. Surewicz
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Tau Protein ◽  
Crucial Role ◽  
Electrostatic Interactions ◽  
Liquid Phase Separation ◽  
Liquid Liquid Phase Separation

Electrostatic Interactions and Aqueous Two-Phase Separation Modes of Aqueous Mixed Oppositely Charged Surfactants System

2012 ◽  
Vol 116 (34) ◽  
pp. 10330-10341 ◽  
Author(s):  
Li-Sheng Hao ◽  
Yuan-Xiang Gui ◽  
Yan-Mei Chen ◽  
Shao-Qing He ◽  
Yan-Qing Nan ◽  
...  
Keyword(s):  
Phase Separation ◽  
Electrostatic Interactions ◽  
Two Phase ◽  
Oppositely Charged

Quadruplex Folding of DNA Promotes the Condensation of Linker Histones via Liquid-Liquid Phase Separation

2020 ◽  
Author(s):  
Masahiro Mimura ◽  
Shunsuke Tomita ◽  
Yoichi Shinkai ◽  
Kentaro Shiraki ◽  
Ryoji Kurita
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Electrostatic Interactions ◽  
Droplet Formation ◽  
Liquid Phase Separation ◽  
Intrinsically Disordered ◽  
G Quadruplex ◽  
Dna Quadruplex ◽  
Liquid Liquid Phase Separation

<p>Liquid-liquid phase separation (LLPS) of proteins and DNA has recently emerged as a possible mechanism underlying the dynamic organization of chromatin. We herein report the role of DNA quadruplex folding in liquid droplet formation via LLPS induced by interactions between DNA and linker histone H1 (H1), a key regulator of chromatin organization. Fluidity measurements inside the droplets and binding assays using G-quadruplex-selective probes demonstrated that quadruplex DNA structures, such as the G-quadruplex and i-motif, promote droplet formation with H1 and decrease molecular motility within droplets. The dissolution of the droplets in the presence of additives indicated that in addition to electrostatic interactions between the DNA and the intrinsically disordered region of H1, π-π stacking between quadruplex DNAs could potentially drive droplet formation. Given that DNA quadruplex structures are well documented in heterochromatin regions, it is imperative to understand the role of DNA quadruplex folding in the context of intranuclear LLPS.<b></b></p>

Role of Surfactants and Salt in Aqueous Two-Phase Separation of Carbon Nanotubes toward Simple Chirality Isolation

ACS Nano ◽  
2014 ◽  
Vol 8 (2) ◽  
pp. 1619-1628 ◽  
Author(s):  
Navaneetha K. Subbaiyan ◽  
Sofie Cambré ◽  
A. Nicholas G. Parra-Vasquez ◽  
Erik H. Hároz ◽  
Stephen K. Doorn ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Phase Separation ◽  
Two Phase

scholarly journals First-principles analysis on role of spinel (111) phase boundaries in Li4+3xTi5O12 Li-ion battery anodes

2016 ◽  
Vol 18 (33) ◽  
pp. 23383-23388 ◽  
Author(s):  
Yoshinori Tanaka ◽  
Minoru Ikeda ◽  
Masato Sumita ◽  
Takahisa Ohno ◽  
Kazunori Takada
Keyword(s):  
Phase Separation ◽  
Anode Material ◽  
First Principles ◽  
Li Ion Battery ◽  
Phase Boundaries ◽  
Two Phase ◽  
Li Ion

The practical anode material Li4+3xTi5O12 is known to undergo a two-phase separation into Li7Ti5O12 and Li4Ti5O12 during charging/discharging.

scholarly journals Quadruplex Folding of DNA Promotes the Condensation of Linker Histones via Liquid-Liquid Phase Separation

2020 ◽  
Author(s):  
Masahiro Mimura ◽  
Shunsuke Tomita ◽  
Yoichi Shinkai ◽  
Kentaro Shiraki ◽  
Ryoji Kurita
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Electrostatic Interactions ◽  
Droplet Formation ◽  
Liquid Phase Separation ◽  
Intrinsically Disordered ◽  
G Quadruplex ◽  
Dna Quadruplex ◽  
Liquid Liquid Phase Separation

<p>Liquid-liquid phase separation (LLPS) of proteins and DNA has recently emerged as a possible mechanism underlying the dynamic organization of chromatin. We herein report the role of DNA quadruplex folding in liquid droplet formation via LLPS induced by interactions between DNA and linker histone H1 (H1), a key regulator of chromatin organization. Fluidity measurements inside the droplets and binding assays using G-quadruplex-selective probes demonstrated that quadruplex DNA structures, such as the G-quadruplex and i-motif, promote droplet formation with H1 and decrease molecular motility within droplets. The dissolution of the droplets in the presence of additives indicated that in addition to electrostatic interactions between the DNA and the intrinsically disordered region of H1, π-π stacking between quadruplex DNAs could potentially drive droplet formation. Given that DNA quadruplex structures are well documented in heterochromatin regions, it is imperative to understand the role of DNA quadruplex folding in the context of intranuclear LLPS.<b></b></p>

Quadruplex Folding of DNA Promotes the Condensation of Linker Histones via Liquid-Liquid Phase Separation

2020 ◽  
Author(s):  
Masahiro Mimura ◽  
Shunsuke Tomita ◽  
Yoichi Shinkai ◽  
Kentaro Shiraki ◽  
Ryoji Kurita
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Electrostatic Interactions ◽  
Droplet Formation ◽  
Liquid Phase Separation ◽  
Intrinsically Disordered ◽  
G Quadruplex ◽  
Dna Quadruplex ◽  
Liquid Liquid Phase Separation

<p>Liquid-liquid phase separation (LLPS) of proteins and DNA has recently emerged as a possible mechanism underlying the dynamic organization of chromatin. We herein report the role of DNA quadruplex folding in liquid droplet formation via LLPS induced by interactions between DNA and linker histone H1 (H1), a key regulator of chromatin organization. Fluidity measurements inside the droplets and binding assays using G-quadruplex-selective probes demonstrated that quadruplex DNA structures, such as the G-quadruplex and i-motif, promote droplet formation with H1 and decrease molecular motility within droplets. The dissolution of the droplets in the presence of additives indicated that in addition to electrostatic interactions between the DNA and the intrinsically disordered region of H1, π-π stacking between quadruplex DNAs could potentially drive droplet formation. Given that DNA quadruplex structures are well documented in heterochromatin regions, it is imperative to understand the role of DNA quadruplex folding in the context of intranuclear LLPS.<b></b></p>

A statistical theory of liquid crystalline mixtures: phase separation

1976 ◽  
Vol 352 (1668) ◽  
pp. 41-56 ◽  
Keyword(s):  
Liquid Crystal ◽  
Phase Separation ◽  
Liquid Crystalline ◽  
Experimental Studies ◽  
Phase Region ◽  
Crystal Formation ◽  
Two Phase ◽  
First Order ◽  
Repulsive Forces

The molecular field theory of multicomponent liquid crystalline mixtures, developed by Humphries, James & Luckhurst, has been extended to investigate the possibility of phase separation in binary mixtures of rods and spheres. This extension indicates that the addition of a spherical solute to a liquid crystal depresses the transition from the isotropic to the nematic phase. The solute induced phase transition is first order, although the nematic and isotropic phases are found to be separated by a two-phase region consisting of both nematic and isotropic phases. These qualitative conclusions of the theory are in complete accord with experiment and there is also reasonable agreement with certain quantitative predictions. The same problem has been tackled using a lattice model with purely repulsive anisotropic interactions; this theory would appear to be marginally less successful than our own which is based on a weaker anisotropic potential. Consequently it is not possible to use experimental studies of phase separation in binary liquid crystal mixtures to demonstrate the rôle of repulsive forces in liquid crystal formation.

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