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Neutron research

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Displaying 901 - 925 of 1584

The Cytosolic Domain of T Cell Receptor z Associates with Membranes in a Dynamic Equilibrium and and Deeply Penetrates the Bilayer

September 11, 2017
Author(s)
Kerstin Zimmermann, Rebecca Eells, Frank Heinrich, Stefanie Rintoul, Brian Patrick Josey, Prabhanshu Shekhar, Mathias Loesche, Lawrence J. Stern
Interactions between lipid bilayers and the membrane-proximal regions of membrane-associated proteins play important roles in regulating membrane protein structure and function. The T cell antigen receptor (TCR) is an assembly of eight single-pass membrane

Optical spin transfer and spin-orbit torques in thin-film ferromagnets

August 30, 2017
Author(s)
Junwen Li, Paul M. Haney
We study the optically induced torques on thin film ferromagnetic layers under excitation by circularly polarized light. We include Rashba spin-orbit coupling and assume an out-of-plane magnetization, and consider incident light with an in-plane component

Lipid Nanodomains Change Ion Channel Function

August 22, 2017
Author(s)
Michael NMN Weinrich, David Worcester, Sergey M. Bezrukov
Signaling proteins and neurotransmitter receptors associate with cholesterol-rich fractions of cell membranes--lipid rafts. The different lipid environment in rafts can modulate protein function, but evidence for modulation of ion channels is lacking. Here

Acid-Induced Assembly of a Reconstituted Silk Protein System

August 10, 2017
Author(s)
A. Pasha Tabatabai, Kathleen Weigandt, Daniel L. Blair
The chemical reconstitution of silk cocoons into stable aqueous suspensions allows for the creation of new classes of strong, biocompatible, and biodegradable silk materials. The addition of 8 mM hydrochloric acid to a reconstituted silk solution induces

Phase stability and lithium loading capacity in a liquid scintillation cocktail

August 2, 2017
Author(s)
Denis E. Bergeron, Mark A. Tyra, Hans P. Mumm
Liquid scintillation cocktails loaded with neutron capture agents such as 6Li are used in both neutron and neutrino detectors. For detectors designed to operate over extended timespans, long-term stability can be a concern. We demonstrate the

Anisotropy, Tension-Compression Asymmetry and Texture Evolution of a Rare-Earth-Containing Magnesium Alloy Sheet, ZEK100, at Different Strain Rates and Temperatures: Experiments and Modeling

August 1, 2017
Author(s)
Saadi A. Habib, Akhtar S. Khan, Thomas H. Gnaupel-Herold, Jeffrey T. Lloyd, Scott E. Schoenfeld
Mechanical responses and texture evolution of rare earth containing magnesium alloy, ZEK100, sheet are measured under uniaxial (tension-compression) loadings along the rolling direction (RD), 45° to rolling direction (DD), transverse direction (TD) and

Dynamical Transition of Collective Motions in Dry Proteins

July 28, 2017
Author(s)
Zhuo Liu, Juan Huang, Madhu Sudan Tyagi, Hugh O'Neill, Qiu Zhang, Eugene Mamontov, NItin Jain, Yujie Wang, Jie Zhang, Jeremy C. Smith, Liang Hong
Water is widely assumed to be essential for protein dynamics and function. In particular, the well-documented "dynamical" transition at 200 K detected in hydrogenated proteins by incoherent neutron scattering, at which the protein changes from a rigid, non

Nanoscopic Dynamics of Bicontinuous Microemulsions: Effect of Membrane-Associated Protein

July 28, 2017
Author(s)
V. K. Sharma, Douglas G. Hayes, Volker S. Urban, Hugh M. O'Neill, Madhu Sudan Tyagi, Eugene Mamontov
Bicontinous Microemulsions (BυE)generally consist of nanodomains formed by surfactant in a mixture of water and oil at nearly equal proportions and are potential candidates for the solubilization and purification of membrane proteins. Here we present the

Switching Between Giant Positive and Negative Thermal Expansions of a YFe(CN) 6 -Based Prussian Blue Analogue Induced by Guest Species

July 24, 2017
Author(s)
Qilong Gao, Jun Chen, Qiang Sun, Dahu Chang, Qingzhen Huang, Hui Wu, Andrea Sanson, Ruggero Milazzo, He Zhu, Qiang Li, Zhanning Liu, Jinxia Deng, Xianran Xing
The control of thermal expansion of solid compounds is intriguing but remains challenge. In this study, we investigate the effect of guests on the thermal expansion of open-framework structures. It is interesting to observe that the presence of guest ions
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