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Nicholas Sharp, Maria Isabel Vega Martinez, Ruthmara Corzo, Blaza Toman, Rick Paul, Jamie Weaver
NIST SRM 610 and 612 (Trace Elements in Glass) are routinely used for microanalytical measurements but were designed to be bulk-scale reference materials. This study investigates an approach to quantify the differences between values for elements obtained
Mrittunjoy Sarker, Felipe Mojica, Ami Neyerlin, Bryan Pivovar, Daniel Hussey, Jacob LaManna, David Jacobson, Po-Ya Chuang
Two types of anion exchange ionomers, powder and dispersion, are studied in this work. The gas diffusion electrode (GDE) with the dispersion-type ionomer exhibits strong hydrophobicity, thus not enabling sufficient ionic exchange during the potassium
Emre Brookes, Joseph E. Curtis, Aaron Householder, Mattia Rocco
AI programs such as AlphaFold (AF) are having a major impact on structural biology. However, predicted unstructured regions, the arrangement of linker-connected domains and their conformational changes in response to environmental variables present
Nathan Mahynski, David Sheen, Rick Paul, Huaiyu Chen-Mayer, Vincent Shen
We trained deep convolutional neural networks (CNN) to classify a material based on its prompt gamma ray activation analysis (PGAA) spectrum. We focused on two dimensional (2D) models to leverage abundant open-source models pre-trained on other computer
Nor I. Nordin, Khai C. Tan, Hong Wen, Xiaohua Ju, Wei Zhou, Hui Wu, Teng He, Ping Chen, Yong Chua
Arene-cycloalkane pairs are promising for hydrogen storage but often encounter unfavorable thermodynamic and kinetic issues in hydrogenation and dehydrogenation. A recent strategy to circumvent thermodynamic constraints involves introducing electron
Youngju Kim, Michael Daugherty, Caitlyn Wolf, Daniel Hussey, Jacob LaManna, David Jacobson, Paul A. Kienzle, Daeseung Kim, Seung Wook Lee, Minsoo Han, Hahn Choo, Jongyul Kim, Taejoo Kim
Distinguishing differences between authentic artifacts and replicas is a significant challenge in the field of cultural heritage. In this study, we explore the application of neutron grating interferometry and tomography techniques to identify ancient
Valeriy Cherepakhin, Van K. Do, Anthony J. Chavez, Jacob Kelber, Ryan Klein, Eric Novak, Yongqiang Cheng, Xiaoping Wang, Craig Brown, Travis J. Williams
The authors report the structure, reactivity, and catalytic utility of a triiridium complex, [Ir3H6(μ3-H)(PN)3]2+ (2-H, PN = (2-pyridyl)CH2PBut2). Despite its unusual stability to unsaturated organics, electrophiles, and even CF3SO3D, they find that
Mitchell DiPasquale, Maksymilian Dziura, Omotayo Gbadamosi, Stuart R. Castillo, Ambreen Fahim, Justin Roberto, Jeffrey Atkinson, Natalie Boccalon, Mario Campana, Sai Pingali, P. C. Chandrasekera, Piotr Zolnierczuk, Michihiro Nagao, Elizabeth Kelley, Drew Marquardt
The popularity of electronic cigarettes and vaping products has launched the outbreak of a condition affecting the respiratory system of users, known as electronic-cigarette/vaping-associated lung injury (EVALI). The build-up of vitamin E acetate (VEA), a
David Diamond, Abdullah Weiss, Osman Celikten, Jeremy Cook, Dagistan Sahin, Hubert King, Anil Gurgen, Joy Shen
A pre-conceptual design has been completed for a NIST Neutron Source (NNS). It would replace the existing facility at the NIST Center for Neutron Research (NCNR) to enable significantly more thermal and cold neutrons to be used in many more experiments
Wenliang Wang, Yanshu Shi, Wenrui Chai, Kai Tang, Ilya Pyatnitskiy, Yi Xie, Xiangping Liu, Weilong He, Jinmo Jeong, Ju-Chun Hsieh, Anakaren Lozano, Brinkley Artman, Xi Shi, Nicole Hoefer, Binita Shrestha, Noah Stern, Wei Zhou, David McComb, Tyrone Porter, Graeme Henkelman, Banglin Chen, Huiliang Wang
The precise control of mechanochemical activation within deep tissues using non-invasive ultrasound holds profound implications for advancing our understanding of fundamental biomedical sciences and revolutionizing disease treatments1–4. However, a theory
Studying the scission of rodlike micelles under mechanical forces is essential for understanding their stability and behavior in industrial applications. Mechanical stress can fragment these micelles, impacting performance. Investigating this process
Kushol Gupta, Nikolina Sekulic, Praveen Allu, Nicholas Sapp, Qingqiu Huang, Kathryn Sarachan, Mikkel Christensen, Reidar Lund, Susan N. Krueger, Joseph E. Curtis, Richard Gillilan, Gregory Van Duyne, Ben Black
Hydrogen−deuterium exchange (HDX) measured by small-angle neutron scattering (HDX-SANS) is used to measure HDX in bovine serum albumin (BSA) under different temperatures and formulation conditions. HDX-SANS measurements are performed at 40, 50, and 60 °C
Marija Dubackic, Veronica Lattanzi, Yun Liu, Michael Haertlein, Juliette Devos, Emma Sparr, Sara Linse, Ulf Olsson
We have investigated the interactions between α-Synuclein (aSyn) and small unilamellar vesicles composed of a mixture of zwitterionic POPC and anionic POPS lipids. aSyn monomers spontaneously adsorb onto the anionic lipid vesicles where they adopt an α
Priscila Costa, Jamie Weaver, M Raele, Kevin Pritchard, Juscelino Leao, C Domienikan, Nicholas C. Maliszewskyj, F da Silva, W Pereira, Frederico Genezini
This study demonstrates the construction and operation of a portable, solid-state thermal neutron sensor that utilizes a photodiode coated with a thin layer of boron-10 (10B). The boron layer was created using pulsed laser deposition and analyzed through
Rachel Rohde, Kurtis Carsch, Matthew Dods, Henry Jiang, Alexandra McIsaac, Ryan Klein, Hyunchul Kwon, Sarah Karstens, Yang Wang, Adrian Huang, Jordan Taylor, Yuto Yabuuchi, Nikolay Tkachenko, Katie Meihaus, Hiroyasu Furukawa, Danielle Yahne, Kaitlyn Engler, Karen Bustillo, Andrew Minor, Jeffrey Reimer, Martin Head-Gordon, Craig Brown, Jeffrey Long
Carbon capture can mitigate point-source carbon dioxide (CO2) emissions, but hurdles remain that impede the widespread adoption of amine-based technologies. Capturing CO2 at temperatures closer to those of many industrial exhaust streams (>200°C) is of
Megan Mitchell, Charles Majkrzak, David Hoogerheide
Flow cells are ubiquitous in laboratories and automated instrumentation and are crucial for ease of sample preparation, analyte addition, and buffer exchange. Often, the assumption that the fluids have exchanged completely in a flow cell is crucial to data
Nicolau Lopez-Pinto, Christopher Jensen, Zhijie Chen, Zhengwei Tan, Zheng Ma, Maciej Liedke, Maik Butterling, Andreas Wagner, Javier Herrero-Martin, Enric Menendez, Josep Nogues, Kai Liu, Jordi Sort
The increasing energy demand in information technologies requires novel low-power procedures to store and process data. Magnetic materials, central to these technologies, are usually controlled through magnetic fields or spin-polarized currents that are
A method is described for determination of fluorine in reference materials by chopped beam cold neutron prompt gamma-ray activation analysis (CB-CNPGAA). The chopper cycle is set to 11 s on/off to match the t1/2 of 20F. To reduce systematic error, the F
Single-crystalline covalent organic frameworks (COFs) are highly desirable towards understanding their pore chemistry and functions. Herein, two 50100 μm single-crystalline three-dimensional (3D) COFs, TAM-TFPB-COF and TAPB-TFS-COF, were fabricated from
Mads Amdisen, Yongqiang Cheng, Niina Jalarvo, Daniel Pajerowski, Craig Brown, Torben R. Jensen, Mikael S. Andersson
Reorientational dynamics in solid electrolytes can significantly enhance the ionic conductivity, and understanding these dynamics can facilitate the rational design of improved solid electrolytes. Additionally, recent investigations on metal hydridoborate
Heather H. Chen-Mayer, Dagistan Sahin, Bryan Remley, Steven Brown, David Goodman
A dual-plane Compton imaging detector previously developed for prompt gamma imaging has been further tested and calibrated for quantitative radioactivity determination, specifically to assess radioactive debris from a reactor fuel element containing
Richard A. Livingston, Preethi Sridhar, Neal Berke, Amde M. Amde, Heather H. Chen-Mayer
Prompt Gamma Activation Analysis (PGAA) is an elemental analysis method based on radiative neutron capture that is isotope-specific and has a high sensitivity to chlorine (Cl). To evaluate the feasibility of replacing the conventional wet chemistry method
Guangcui Yuan, Paul Salipante, Steven D. Hudson, Richard Gillilan, Qingqiu Huang, Harold Hatch, Vincent Shen, Alexander Grishaev, Suzette Pabit, Rahul Upadhya, Sudeep Adhikari, Jainik Panchal, Marco Blanco, Yun Liu
The solution viscosity and protein−protein interactions (PPIs) as a function of temperature (4−40 °C) were measured at a series of protein concentrations for a monoclonal antibody (mAb) with different formulation conditions, which include NaCl and sucrose