U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 2176 - 2200 of 2289

Ozone generation and chemistry from 222 nm germicidal ultraviolet light in a fragrant restroom

May 20, 2024
Author(s)
Michael F. Link, Rileigh Robertson, Andrew Shore, Behrang Hamadani, Christina Cecelski, Dustin Poppendieck
Devices using 222 nm germicidal ultraviolet light (GUV222) have been marketed to reduce virus transmission indoors with low risk of occupant harm from direct UV exposure. GUV222 generates ozone, an indoor air pollutant and oxidant, under constrained

Elucidating the challenges in extracting ultra-slow flame speeds in a closed vessel - A CH2F2 microgravity case study using optical and pressure-rise data

September 25, 2023
Author(s)
Raik Hesse, Chaimae Bariki, Michael Hegetschweiler, Gregory T. Linteris, Heinz Pitsch, Joachim Beeckmann
Refrigerants with a low global warming potential (GWP) possess mild flammability. Hence, a fundamental understanding of their combustion characteristics is required to assess their fire-hazardous potential. The laminar burning velocity is one fundamental

Production, purification and characterization of 15N5-labeled cis- and trans-aflatoxin B1-formamidopyrimidines, and aflatoxin B1-N7-guanine as internal standards for mass spectrometric measurements

April 11, 2023
Author(s)
Pawel Jaruga, Melis Kant, Miral M. Dizdar, Rachana Tomar, Vladimir Vartanian, Benjamin Sexton, Carmelo Rizzo, Robert Turesky, Michael Stone, R. Stephen Lloyd
Exposure to aflatoxin B1 (AFB1) through contaminated food is a primary contributor to the occurrence of hepatocellular carcinogenesis worldwide. Hepatitis B viral infections in livers dramatically increase the carcinogenic potency of AFB1 exposures. Liver

Hydration of a side-chain-free n-type ladder semiconducting polymer driven by electrochemical doping

January 11, 2023
Author(s)
Jiajie Guo, Lucas Flagg, Duyen Tran, Shinya Chen, Ruipeng Li, Nagesh Kolhe, Rajiv Giridharagopal, Samson A. Jenekhe, Lee J. Richter, David Ginger
We study the organic electrochemical transistor (OECTs) performance of the ladder polymer, poly(benzimidazobenzophenanthroline) (BBL) in an attempt to better understand how an apparently insoluble side-chain free polymer is able to operate as an OECT with

Multimodal X-ray Probing of the Capacity Fade Mechanisms of Nickel Rich NMC - Progress and Outlook

April 22, 2022
Author(s)
Cherno Jaye, Daniel A. Fischer, Calvin Quilty, Patrick West, Wenzao Li, Mikaela Dunkin, Garrett Wheeler, Steven Ehrlich, Lu Ma, Esther Takeuchi, Kenneth Takeuchi, David Bock, Amy Marschilok
NMC is a commercially successful Li-ion battery cathode due to its high energy density; however, its delivered capacity must be intentionally limited to achieve capacity retention over extended cycling. To design next-generation NMC batteries with longer

Assessing Arsenic Species in Foods Using Regularized Linear Regression of the Arsenic K-edge X-ray Absorption Near Edge Structure

April 19, 2022
Author(s)
Evan Jahrman, Lee L. Yu, William P. Krekelberg, David Sheen, Thomas C. Allison, John L. Molloy
The toxicity and bioavailability of arsenic is heavily dependent on its speciation. Therefore, robust and accurate methods are needed to determine arsenic speciation profiles for materials related to public health initiatives, such as food safety. Here, X

Comprehensive Analysis of Tryptic Peptides Arising from Disulfide Linkages in NISTmAb and Their Use for Developing a Mass Spectral Library

June 22, 2021
Author(s)
Qian Dong, Xinjian Yan, Yuxue Liang, Sanford Markey, Sergey L. Sheetlin, Concepcion Remoroza, William E. Wallace, Stephen Stein
This work presents methods for identifying and then creating a mass spectral library for disulfide-linked peptides originating from the NISTmAb. Analysis involved both partially- reduced and non-reduced proteins under neutral and weakly basic conditions

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
… DBT, a phenomenon which has been reported in metallic and oxide glasses. The ratio of transverse acoustic mode velocity …

Observation of Anti-Damping Spin-Orbit Torques Generated by In-Plane and Out-of-Plane Spin Polarizations in MnPd 3

December 16, 2020
Author(s)
Mahendra DC, Ding-Fu Shao, Vincent D.-H. Hou, Patrick Quarterman, Ali Habiboglu, Brooks Venuti, Masashi Miura, Brian Kirby, Arturas Vailionis, Chong Bi, Xiang Li, Fen Xue, Yen-Lin Huang, Yong Deng, Shy-Jay Lin, Wilman Tsai, Serena Eley, Weigang Wang, Julie A. Borchers, Evgeny Y. Tsymbal, Shan X. Wang
High spin-orbit torques (SOTs) generated by topological materials and heavy metals interfaced with a ferromagnetic layer show promise for next generation magnetic memory and logic devices. SOTs generated from the in-plane spin polarization along y-axis

Enzyme-Inspired Microporous Polymer Layers Determine the Reactivity of Encapsulated Metallic Surfaces

August 5, 2019
Author(s)
Andrew Herzing, Andrew Riscoe, Cody Wrasman, Adam Hoffman, Aditya Menon, Alexey Boubnov, Maria Vargas, Simon Bare, Matteo Cargnello
Enzymes are natural catalysts that govern precise, biological chemistry through accurate control of transport and activation of species within three-dimensional active sites, but their use in industrial applications is limited by their stability1

Expanding lipidome coverage using LC-MS/MS data-dependent acquisition with automated exclusion list generation

March 6, 2017
Author(s)
John Bowden, Jeremy P. Koelmel, Nicholas M. Kroeger, Emily L. Gill, Candice Z. Ulmer, Rainey E. Patterson, Richard A. Yost, Timothy J. Garrett
Untargeted omics analyses aim to comprehensively characterize biomolecules within a biological system. Changes in the presence or quantity of these biomolecules can indicate important biological perturbations, such as those caused by disease. With current

Atomically precise device fabrication

December 7, 2016
Author(s)
Joseph A. Hagmann, Xiqiao Wang, Pradeep N. Namboodiri, Richard M. Silver, Curt A. Richter
… the advancement of nanotechnology. The complementary metal-oxide-semiconductor (CMOS) devices that power existing …

X-ray Diffraction and Density Functional Theory Studies of R2FeCoO6 (R=Pr, Nd, Sm, Eu, Gd)

December 6, 2016
Author(s)
Winnie K. Wong-Ng, Guangyao Liu, Igor Levin, Izaak Williamson, P Ackerman, Kevin R. Talley, Khawla AlHamdan, James A. Kaduk, Lan Li
The structure and thermoelectric properties of a series of lanthanide iron cobalt oxides, R2FeCoO6 (R = Pr, Nd, Sm, Eu and Gd), have been investigated. The space group of these compounds was confirmed to be orthorhombic Pnma (No.62), Z=4. From Gd to Pr

Integration of Redox-Active Diruthenium-based Molecular Layer onto Electrodes for Memory Device Applications

November 10, 2016
Author(s)
Sujitra J. Pookpanratana, Hao Zhu, Joseph W. Robertson, Sean Natoli, Emily G. Bittle, Curt A. Richter, Tong Ren, Qiliang Li, Christina A. Hacker
Attaching and integrating electrochemically-active molecules to a variety of different surfaces is of importance for applications in catalysis, memory devices, and molecular electronics. With the increasing demand for personal electronics, growth in Flash

From Serendipity to Rational Design: Tuning the Blue Trigonal Bipyramidal Mn 3+ Chromophore to Violet and Purple through Application of Chemical Pressure

October 1, 2016
Author(s)
Jun Li, Simon Lorger, Judith K. Stalick, Arthur W. Sleight, M. A. Subramanian
We recently reported that an allowed d-d transition of trigonal bipyramidal (TBP) Mn 3+ is responsible for the bright blue color in the YIn 10xMn xO 3 solid solution. The crystal field splitting between a'(d z2) and e'(d x2'y2, D xy) energy levels is very

Photochemical transformations of thiolated polyethylene glycol coatings on gold nanoparticles

August 16, 2016
Author(s)
Stacey M. Louie, Justin M. Gorham, Eric A. McGivney, Jingyu Liu, Kelvin B. Gregory, Vincent A. Hackley
Photochemical reactions can result in significant transformations of manufactured nanomaterials in sunlit environments. While transformations of inorganic nanoparticles (NPs) have been investigated extensively, much less attention has been focused on the

Chemical kinetic model uncertainty minimization through laminar flame speed measurements

July 25, 2016
Author(s)
Okjoo Park, Peter S. Veloo, David Sheen, Yujie Tao, Fokion N. Egolfopoulos, Hai Wang
Laminar flame speed measurements were carried for mixture of air with eight C3-4 hydrocarbons (propene, propane, 1,3-butadiene, 1-butene, 2-butene, iso-butene, n-butane, and iso-butane) at the room temperature and ambient pressure. Along with C1-2

Evaluating smoldering behavior of fire-blocking barrier fabrics

January 29, 2015
Author(s)
Shonali Nazare, William M. Pitts, Szabolcs Matko, Rick D. Davis
This study reports on the smoldering propensity of commercially available barrier fabrics (BFs) in a small-scale mock-up configuration. Most BFs are smolder resistant when tested alone over a standard flexible polyurethane foam (FPUF). However, when

Evaluating Smoldering Behavior of Fire-Blocking Barrier Fabrics

January 29, 2015
Author(s)
Shonali Nazare, William M. Pitts, Szabolcs Matko, Rick D. Davis
This study reports on the smoldering propensity of commercially available barrier fabrics (BFs) in a small-scale upholstered seating mock-up configuration. Most commercially available BFs are smolder resistant when tested alone over a standard flexible
Displaying 2176 - 2200 of 2289
Was this page helpful?