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Neutron research

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Displaying 126 - 150 of 914

Nanoscale Bending Dynamics in Mixed-Chain Lipid Membranes

January 9, 2023
Author(s)
Elizabeth Kelley, Moritz Frewein, Orsolya Czakkel, Michihiro Nagao
Lipids that have two tails of different lengths are found throughout biomembranes in nature, yet the effects of this asymmetry on the membrane properties, are not well understood, especially when it comes to the membrane dynamics. Here we study the

Characterizing the ZrBe 2 H x Phase Diagram via Neutron Scattering Methods

January 1, 2023
Author(s)
Hui Wu, Wei Zhou, Terrence J. Udovic, Jr. Bowman, Bjorn C. Hauback
It is well-known that ZrBe 2H 1.5 exists as a single-phase hydride with hexagonal P6/mmm symmetry that undergoes some type of hydrogen sublattice ordering below 200 K (235-250 K for ZrBe 2D 1.5&). Both neutron powder diffraction and neutron vibrational

Simultaneous neutron and X-ray tomography for ex-situ 3D visualization of graphite anode degradation from extremely fast-charged lithium-ion batteries

November 16, 2022
Author(s)
Maha Yusuf, Jacob LaManna, Partha Paul, David Agyeman-Budu, Chuntian Cao, Alison Dunlop, Andrew Jansen, Bryant Polzin, Stephen Trask, Tanvir Tanim, Eric Dufek, Vivek Thampy, Hans-Georg Steinruck, Michael Toney, Johanna Weker
Extreme fast charging (XFC) of commercial lithium-ion batteries (LIBs) in ≤10-15 minutes will significantly advance the deployment of electric vehicles globally. However, XFC leads to considerable capacity fade, mainly due to graphite anode degradation

Multivariate Zeolitic Imidazolate Frameworks with an Inverting Trend in Flexibility

November 10, 2022
Author(s)
Arijit Halder, Ryan Klein, C. McGuirk, Rachel Lively
Through systematic linker substitution in a flexible zeolitic imidazolate framework (ZIF) with step-shaped adsorption–desorption, structural intermediates between the known open and closed phases were isolated. Reflecting this, modulative sorption

A Round-Robin Approach Provides a Detailed Assessment of Biomolecular Small-Angle Scattering Data Reproducibility and Yields Consensus Curves for Benchmarking.

November 1, 2022
Author(s)
Jill Trewhella, Patrice Vachette, Jan Bierma, Clement Blanchet, Emre Brookes, Srinivas Chakravarthy, Leonie Chatzimagas, Thomas Cleveland, Nathan Cowieson, Ben Crossett, Anthony P. Duff, Daniel Franke, Frank Gabel, Richard E. Gillilan, Melissa Graewert, Alexander Grishaev, Jules M. Guss, Michal Hammel, Jesse Hopkins, Qingqui Huang, Jochen S. Hub, Gregory L. Hura, Thomas C. Irving, Cy M. Jeffries, Cheol Jeong, Nigel Kirby, Susan N. Krueger, Anne Martel, Tsutomu Matsui, Na Li, Javier Perez, Lionel Porcar, Thierry Prange, Ivan Rajkovic, Mattia Rocco, Daniel J. Rosenberg, Timothy M. Ryan, Soenke Seifert, Hiroshi Sekiguchi, Dmitri Svergun, Susana C. Marujo Teixeira, Aurelien Thureau, Thomas M. Weiss, Andrew Whitten, Kathleen Wood, Xiaobing Zuo
Small-Angle Scattering (SAS) data from 5 candidate proteins (RNaseA, lysozyme, xylanase, urate oxidase and xylose isomerase) were measured on 12 Small-Angle X-ray Scattering (SAXS) and 4 Small-Angle Neutron Scattering (SANS) instruments. In total, more

Proposed NIST Neutron Source User Facility

November 1, 2022
Author(s)
Jeremy Cook, Hubert King, Charles F. Majkrzak, Dagistan Sahin, Joy Shen, Osman Celikten, David Diamond, Robert E. Williams, Thomas Newton
ANS summary format (no abstract)

Vitamin E does not Disturb Polyunsaturated Fatty Acid Lipid Domains

November 1, 2022
Author(s)
Mitchell DiPasquale, Michael H. Nguyen, Stuart R. Castillo, Isabelle J. Dib, Elizabeth Kelley, Drew Marquardt
The antioxidant function of vitamin E in biomembranes remains a prominent topic of discussion. As its limitations as an antioxidant persist and novel functions are discovered, our understanding of the role of vitamin E becomes increasingly enigmatic. As a

Bi 12 O 17 Cl 2 with a Sextuple Bi-O Layer Composed of Rock-Salt and Fluorite Units and its Structural Conversion through Fluorination to Enhance Photocatalytic Activity

October 10, 2022
Author(s)
Daichi Kato, Osamu Tomita, Ryky Nelson, Maria A. Kirsanova, Richard Dronskowski, Hajime Suzuki, Chengchao Zhong, Cedric Tassel, Kohdai Ishida, Yosuke Matsuzaki, Craig Brown, Koji Fujita, Kotaro Fujii, Masatomo Yashima, Yoji Kobayashi, Akinori Saeki, Itaru Oikawa, Hitoshi Takamura, Ryu Abe, Hiroshi Kageyama, Tatiana E. Gorelik, Artem M. Abakumov
Layered bismuth oxyhalides with bilayered (Bi 2O 2) fluorite slabs are promising visible-light photocatalysts because of the ability to control the valence band levels. Here we show that a structurally uncharacterized Bi 12O 17Cl 2, which has been

Structural and Biophysical Properties of Farnesylated KRas Interacting with the Chaperone SmgGDS-558

October 4, 2022
Author(s)
Dennis J. Michalak, Bethany Unger, Ellen Lorimer, Alexander Grishaev, Carol Williams, Frank N. Heinrich, Mathias Losche
KRas is a small GTPase and membrane-bound signaling protein. Newly synthesized KRas is posttranslationally modified with a membrane-anchoring prenyl group. KRas chaperones are therapeutic targets in cancer due to their participation in trafficking oncogeni

Restricting a-Synuclein Transport into Mitochondria by Inhibition of a-Synuclein-VDAC Complexation as a Potential Therapeutic Target for Parkinson's Disease Treatment

October 1, 2022
Author(s)
Megha Rajendran, Maria Queralt-Martin, Philip A. Gurnev, William M. Rosencrans, Amandine Rovini, Daniel Jacobs, Kaitlin Abrantes, David Hoogerheide, Sergey M. Bezrukov, Tatiana Rostovtseva
Involvement of alpha-synuclein (αSyn) in Parkinson's disease (PD) is complicated and difficult to trace on cellular and molecular levels. Recently we established that αSyn can regulate mitochondrial function by voltage-activated complexation with the

Fabrication of Lithium Indolide and Derivates for Ion Conduction

September 14, 2022
Author(s)
Jintao Wang, Yang Yu, Anan Wu, Khai Chen Tan, Hui Wu, Teng He, Ping Chen
Alkali-ion batteries have been widely used nowadays. The development of solid-state electrolytes (SSEs) to replace the widely used organic liquid electrolytes could effectively solve the issue of combustion due to the formation of alkali metal dendrites

Energy Broadening of Neutron Depth Profiles by Thin Polyamide Films

September 7, 2022
Author(s)
Jamie Weaver, Anna Job, Kedar Manandhar, Ichiro Takeuchi, Robert Gregory Downing
A protective covering is often required for neutron depth profiling (NDP) measurements of sensitive materials (e.g., Li-ion batteries). Addition of this layer can increase NDP profile energy broadening and depth assignment uncertainty. This study evaluates
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