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Neutron research

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Displaying 276 - 300 of 925

Role of low molecular weight polymers on the dynamics of silicon anodes during casting

April 13, 2021
Author(s)
Mary Burdette, Beth Armstrong, Ryan Murphy, Luke Heroux, Mathieu Doucet, Stephen Trask, Alexander Rogers, Gabriel Veith
This work probes the slurry architecture of a high silicon content electrode slurry with and without low molecular weight polymeric dispersants as a function of shear rate to mimic electrode casting conditions for poly(acrylic acid) (PAA) and lithium

Robust Biological Hydrogen-Bonded Organic Framework with Post-Functionalized Rhenium(I) Sites for Efficient Heterogeneous Visible Light-Driven CO 2 Reduction

April 12, 2021
Author(s)
Baoqiu Yu, Lianjie Li, Shanshan Liu, Hailong Wang, Heyuan Liu, Chenxiang Lin, Chao Liu, Hui Wu, Wei Zhou, Xiyou Li, Tianyu Wang, Banglin Chen, Jianzhuang Jiang
A robust 2,2'-bipyridine (bpy)-derived biological hydrogenbonded framework (HOF-25) has been realized depending on guanine-quadruplex with the assistance of π-π interaction, which reacts with Re(CO) 5Cl to give a post-functionalized HOF-25-Re. Xray

Intermediate Scattering Functions of a Rigid Body Monoclonal Antibody Protein in Solution Studied by Dissipative Particle Dynamic Simulation

April 8, 2021
Author(s)
Yanqin Zhai, Nicos Martys, William L. George, Joseph E. Curtis, Jannatun Nayem, Y. Z, Yun Liu
In the past decade, there is increased research interest in studying internal motions of flexible proteins in solution using Neutron Spin Echo (NSE) as NSE can simultaneously probe the dynamics at the length and time scale comparable to protein domain

Membrane transporter dimerization driven by differential lipid solvation energetics of dissociated and associated states

April 7, 2021
Author(s)
Rahul Chadda, Nathan Bernhardt, Elizabeth Kelley, Susana Marujo Teixeira, Kacie Griffith, Alejandro Gil-Ley, Tugba Ozturk, Lauren Hughes, Ana Forsythe, Venkatramanan Krishnamani, Jose Faraldo-Gomez, Janice Robertson
Over two-thirds of integral membrane proteins of known structure assemble into oligomers. Yet, the forces that drive the association of these proteins remain to be delineated, as the lipid bilayer is a solvent environment that is both structurally and

Interplay between the Reorientational Dynamics of the B 3 H 8 - Anion and the Structure in KB 3 H 8

February 25, 2021
Author(s)
M. S. Andersson, Jakob Grinderslev, X.-M. Chen, X. Chen, Ulrich Haussermann, Wei Zhou, T. R. Jensen, M. Karlsson, Terrence J. Udovic
The local structure and reorientational dynamics of KB 3H 8 were studied using quasielastic and inelastic neutron scattering, Raman spectroscopy, first-principles calculations and differential scanning calorimetry. The results reveal the existence of a

Tailoring electrode-electrolyte-interfaces in lithium-ion batteries using molecularly engineered functional polymers

February 22, 2021
Author(s)
Laisuo Su, Jamie Weaver, Mitchell C. Groenenboom, Nathan Nakamura, Eric Rus, Priyanka Anand, Shikhar Krishn Jha, Joseph Okasinski, Joseph Dura, B Reeja-Jayan
Electrode−electrolyte interfaces (EEIs) affect the rate capability, cycling stability, and thermal safety of lithium-ion batteries (LIBs). Designing stable EEIs with fast Li+ transport is crucial for developing advanced LIBs. Here, we study Li+ kinetics at

Adsorption of Non-Ionic Surfactant and Monoclonal Antibody on Siliconized Surface Studied by Neutron Reflectometry

February 15, 2021
Author(s)
Zhenhuan Zhang, Ann M. Woys, Kunlun Hong, Christoph Grapentin, Tarik A. Khan, Isidro E. Zarraga, Norman J. Wagner, Yun Liu
The adsorption of monoclonal antibodies (mAbs) on hydrophobic surfaces is known to cause protein aggregation and degradation. Therefore, surfactants, such as Poloxamer 188, are widely used in therapeutic formulations to stabilize mAbs and protect mAbs from

Micromechanical Behaviorof Multilayered Ti/Nb Composites Processed by Accumulative Roll Bonding: An in-situ Synchrotron X-ray Diffraction Investigation

February 14, 2021
Author(s)
S. Jiang, R. L. Peng, Z. Hegedus, Thomas Gnaupel-Herold, J. J. Moverare, U. Lienert, F. Fang, X. Zhao, L. Zuo, N. Jia
Ti/Nb multilayered composites were fabricated by accumulative roll bonding (ARB). With increasing ARB cycles, shear bands become predominant in the continuously strengthened composites. The correlation between micromechanical behavior and mechanical

Why Polymer Glasses with Enhanced Sub-nanosecond Relaxation are Tougher

February 12, 2021
Author(s)
Christopher Soles, Adam B. Burns, Kanae N. Ito, Jack Douglas, Robert Dimeo, Madhu Sudan Tyagi, Jingsheng Wu, Albert F. Yee, Yueh-Ting Shih, Liping Huang
This manuscript explores the connection between the fast relaxation processes in a polymer glass and essential trends in the mechanical toughness, a non-linear mechanical property that is of practical interest for engineering polymers with high impact

National Institute of Standards and Technology Environmental Scan 2020

February 9, 2021
Author(s)
Heather Evans, Kristen K. Greene, William M. Healy, Elizabeth Hoffman, Kate Rimmer, Anna V. Sberegaeva, Neil M. Zimmerman
The 2020 National Institute of Standards and Technology Environmental Scan provides an analysis of key external factors that could impact NIST and the fulfillment of its mission in coming years. The analyses were conducted through four separate lenses

A Combinatory Ferroelectric Compound Bridging Simple ABO 3 and A-Site-Ordered Quadruple Perovskite

February 2, 2021
Author(s)
Jianfa Zhao, Jiacheng Gao, Wenmin Li, Yuting Qian, Xiao Wang, Xi Shen, Zhiwei Hu, Cheng Dong, Qingzhen Huang, Lipeng Cao, Zhi Li, Jun Zhang, Chongwen Ren, Lei Duan, Qingqing Liu, Richeng Yu, Yang Ren, Shih-Chang Weng, Hong-Ji Lin, Chien-Te Chen, Liu-Hao Tjeng, Youwen Long, Zheng Deng, Jinlong Zhu, Xiancheng Wang, Hongming Weng, Runze Yu, Martha Greenblatt, Changqing Jin

Electrolyte Layer Gas Triggers Cathode Potential Instability in CO2 Electrolyzers

February 1, 2021
Author(s)
Kevin Krause, Jason K. Lee, ChungHyuk Lee, Hisan W. Shafaque, Pascal J. Kim, Kieran F. Fahy, Pranay Shrestha, Jacob LaManna, Elias Baltic, David Jacobson, Daniel Hussey, Aimy Bazylak
Electrolytic carbon dioxide (CO2) reduction is becoming increasingly promising for managing anthropogenic CO2 emissions; however, issues related to unstable performance and ineffective gas management are still not fully accounted for in the field. Here, we

Implementation of a Self-Consistent Slab Model of Bilayer Structure in the SasView Suite

February 1, 2021
Author(s)
Luoxi Tan, James G. Elkins, Brian H. Davison, Elizabeth Kelley, Jonathan Nickels
Slab models are simple and useful structural descriptions which have long been used to describe lyotropic lamellar phases, such as lipid bilayers. Typically, slab models break a bilayer structure into three pieces, an inner solvent-free core and two

Water Migration and Swelling in Engineered Barrier Materials for Radioactive Waste Disposal

January 25, 2021
Author(s)
Joanna McFarlane, Lawrence M Anovitz, Michael C. Cheshire, Victoria H. DiStefano, Hassina Z. Bilheux, Jean-Christophe Bilheux, Luke L. Daemen, Richard E. Hale, Ronald L. Howard, A. J. Ramirez-Cuesta, Louis J. Santodonato, Markus Bleuel, Daniel S. Hussey, David L. Jacobson, Jacob LaManna, Edmund Perfect, Logan Qualls
Deep underground repositories are needed to isolate radioactive waste from the biosphere. Bentonite is an integral component of many multibarrier repository systems. Information on the hydraulic behavior of bentonite is needed for modeling the long-term

Neel Ordering in the Distorted Honeycomb Pyrosilicate: C-Er 2 Si 2 O 7

January 18, 2021
Author(s)
Gavin Hester, T. N. DeLazzer, S. S. Lim, Craig Brown, K. A. Ross
The rare-earth pyrosilicate family of compounds (RE 2Si 2O 7) hosts a variety of polymorphs, some with honeycomb-like geometries of the rare-earth sublattices, and the magnetism has yet to be deeply explored in many of the cases. Here we report on the

Time-Resolved SANS Reveals Pore-Forming Peptides Cause Rapid Lipid Reorganization

January 15, 2021
Author(s)
Michael H. Nguyen, Mitchell DiPasquale, Brett W. Rickeard, Caesar G. Yip, Kaity N. Greco, Elizabeth Kelley, Drew Marquardt
Cells depend on proper lipid transport and their precise distribution for vital cellular function. Disruption of such lipid organization can be initiated by external agents to cause cell death. Here, we investigate two antimicrobial pore-forming peptides
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