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NIST Authors in Bold

Displaying 226 - 250 of 4632

Tumor Necrosis Factor Interaction with Gold Nanoparticles

March 14, 2012
Author(s)
De-Hao D. Tsai, Sherrie R. Elzey, Frank W. DelRio, Robert I. MacCuspie, Suvajyoti S. Guha, Michael R. Zachariah, Athena M. Keene, Jeffrey D. Clogston, Vincent A. Hackley
… conjugation of tumor necrosis factor protein-α (TNF) onto gold nanoparticles (AuNPs) and the subsequent binding … TNF, gold, nanoparticle, PEG, antibody, characterization … Tumor Necrosis Factor Interaction with Gold Nanoparticles …

Identification of Active Gold Nanoclusters on Iron Oxide Supports for CO Oxidation

September 5, 2008
Author(s)
Andrew A. Herzing, Christopher J. Kiely, Albert F. Carley, Graham J. Hutchings
… Gold nanocrystals absorbed on metal oxides have exceptional … but the identification of the active catalytic gold species among the many present on real catalysts is … that are ~0.5 nanometer in diameter and contain only ~10 gold atoms. The activity of these bilayer clusters is …

Gold-Black Coatings for Freestanding Pyroelectric Detectors

May 23, 2003
Author(s)
John H. Lehman, Evangelos Theocharous, George P. Eppeldauer, Chris Pannell
… We describe the process of depositing gold-black on thin, freestanding pyroelectric detector … work documented in the literature. We have evaluated gold-black coatings on thin, freestanding pyroelectric … and demonstrate that radiation not reflected by the gold-black is absorbed by the detector element. We have …

Quantum information processing and multiplexing with trapped ions

January 1, 2003
Author(s)
David J. Wineland, Dietrich G. Leibfried, B. L. DeMarco, V Meyer, M A. Rowe, A Ben kish, Murray D. Barrett, Joseph W. Britton, J Hughes, Wayne M. Itano, Branislav M. Jelenkovic, Christopher Langer, D Lucas, Till P. Rosenband
… Quantum information processing and multiplexing with trapped ions …

Towards quantum information with trapped ions at NIST

January 1, 2003
Author(s)
Dietrich G. Leibfried, B. L. DeMarco, V Meyer, M A. Rowe, A Ben-kish, Murray D. Barrett, Joseph W. Britton, J Hughes, Wayne M. Itano, Branislav M. Jelenkovic, Christopher Langer, D Lucas, Till P. Rosenband, David J. Wineland
… Towards quantum information with trapped ions at NIST …

Radiometer Phase Retardation Plate Evaluation Using Planar Near-field Antenna Measurements

October 19, 2003
Author(s)
Jeffrey R. Guerrieri, Katherine MacReynolds, Douglas T. Tamura
… The plates were tested at 10.7 and/or 18.7 GHz. The plate produces a phase shift between perpendicular field … 90 degree rotation, phase retardation plate, phase shift, polarimetric radiometer … Radiometer Phase Retardation Plate Evaluation Using Planar Near-field Antenna Measurements …

Determination of the isotopic change in nuclear charge radius from extreme-ultraviolet spectroscopy of highly charged ions of Xe

June 16, 2020
Author(s)
Yuri Ralchenko, Roshani Silwal, A. Lapierre, John Gillaspy, Joan M. Dreiling, S A. Blundell, Dipti Goyal, A. Borovik, Jr., G Gwinner, A.C.C. Villari, Endre Takacs
… that extreme ultraviolet spectroscopy of highly charged ions is a precise method for measurements of changes in the … from extreme-ultraviolet spectroscopy of highly charged ions of Xe …

Randomized Benchmarking of Multiqubit Gates

June 29, 2012
Author(s)
John P. Gaebler, Adam M. Meier, Ting Rei Tan, Ryan S. Bowler, Yiheng Lin, David Hanneke, John D. Jost, Jonathan Home, Emanuel H. Knill, Dietrich G. Leibfried, David J. Wineland
… We implemented the benchmarking procedure with trapped-ion two-qubit phase gates and one-qubit gates and found an … movable, sympathetically-cooled ions in a multi-zone Paul trap---a system that can in principle be scaled to larger …

Metrological Traceability for Guarded-Hot-Plate Apparatus

May 9, 2013
Author(s)
Robert R. Zarr
… traceability for measurement results from guarded-hot-plate apparatus consistent with policy at the National … Institute of Standards and Technology 1016 mm guarded-hot-plate appara-tus is described. The approach is suitable for … calibration, guarded-hot-plate apparatus , metrological traceability, thermal …

The effect of internal impurities on the mechanical and conductance properties of gold nanowires during elongation

January 24, 2013
Author(s)
Shmuel Barzilai, Francesca M. Tavazza, Lyle E. Levine
… The conductance and mechanical properties of contaminated gold nanowires were studied using first principle … It was found that both impurities interact with the gold atoms to reduce the electron density and increase the … The O2 reduce the conductance when it is close to the gold atoms in the main pathway. However, at the late stages …

Sensitivity of gold nano conductors to common contaminations ab initio results

May 29, 2013
Author(s)
Shmuel Barzilai, Francesca M. Tavazza, Lyle E. Levine
… Gold nanowire chains are considered a good candidate for … surface may be a useful platform for supporting nano gold conductors, since it preserves the NW configuration, … adsorbed contaminants (H2O and O2) on the conductivity of gold nano-conductors. We found that the presence of adsorbed …

Collisional-Radiative Modeling for Highly-Charged Ions of Tungsten

April 23, 2013
Author(s)
Yuri Ralchenko
… in collisional-radiative modeling of highly-charged ions of tungsten that are relevant to fusion research. The status of spectroscopic data for W ions is briefly discussed as well. Strategies and … spectra, collisional-radiative modeling, highly-charged ions … Collisional-Radiative Modeling for Highly-Charged Ions of Tungsten …

An 27 Al+ quantum-logic clock with systematic uncertainty below 10 -18

July 15, 2019
Author(s)
Samuel M. Brewer, Jwo-Sy Chen, Aaron M. Hankin, Ethan Clements, Chin-wen Chou, David J. Wineland, David Hume, David Leibrandt
… a frequency stability of 1.2 X 10 -15 /(T 1/2 ). A 25 Mg + ion is simultaneously trapped with the 27 Al + ion and used for sympathetic cooling and state readout during clock operation. Improvements in a new trap have led to reduced secular motion heating, compared to …

Base-Dependent Competitive Adsorption of Single-Stranded DNA on Gold

July 30, 2003
Author(s)
H Y. Kimura-Suda, D Y. Petrovykh, Michael J. Tarlov, L J. Whitman
… of single-stranded DNA probes (ssDNA) are widely used with gold surfaces in current biotechnology and emerging … shown that different DNA bases interact differentlywith gold surfaces, competitive interactions among the bases which … adsorption of the four DNA bases onto polycrystalline gold films, including competitive adsorption between all …

Electrodeposition of gold to conformally fill high-aspect-ratio nanometric silicon grating trenches: a comparison of pulsed and direct current protocols

October 1, 2015
Author(s)
sami Znati, N Chedid, Houxun Miao, Lei Chen, Han Wen, Eric E. Bennett
… Filling high-aspect-ratio trenches with gold is a frequent requirement in the fabrication of X-ray … fabrication processes. Conformal electrodeposition of gold in sub-micron-width silicon trenches with an aspect … of pulsed plating and constant current plating led to a gold electroplating protocol that reliably filled trenches …

Phase-coherent detection of an optical dipole force by Doppler velocimetry

May 10, 2011
Author(s)
Michael J. Biercuk, Hermann Uys, Joseph W. Britton, Aaron Vandevender, John J. Bollinger
… Doppler detection of optical dipole forces using large ion crystals in a Penning trap. The technique is based on laser Doppler velocimetry … in 9Be+ near 313 nm and the center-of-mass (COM) ion motional mode. The optical dipole force is tuned to … Doppler velocimetry, ion trap, optical dipole force, Penning trap …

Quantum Computation, Spectroscopy of Trapped Ions, and Schrodinger Cat

January 1, 1999
Author(s)
David J. Wineland, C Monroe, Wayne M. Itano, D Kielpinski, B E. King, C J. Myatt
… e orts at NIST to implement quantum computation using trapped ions, based on a scheme proposed by J.I. Cirac and P. … Quantum Computation, Spectroscopy of Trapped Ions, and Schrodinger Cat …

The NIST EBIT; A Progress Report

January 1, 1993
Author(s)
John D. Gillaspy, J R. Roberts, Craig M. Brown, Uri Feldman
… (1993 publication) The invention of the Electron Beam Ion Trap (EBIT) at Livermore has marked the emergence of a … highly charged state of any atom on the periodic table, trap the ions in a controlled environment virtually free from … atoms, EBIT, electron beam ion trap, highly charged atoms …

The Effect of an Oxidized Gold Substrate on Alkanethiol Self-Assembly

June 1, 2000
Author(s)
John T. Woodward IV, Marlon L. Walker, Curtis W. Meuse, David J. Vanderah, G Poirier, Anne L. Plant
… UV cleaned gold substrates incubated in solutions of alkanethiol show … damaging the underlying monolayer. Islands are observed on gold substrates exposed to solutions of octadecane-, … formation. Islands are not observed on freshly deposited gold substrates or on UV -cleaned gold substrates that are …

Prospects for atomic clocks based on large ion crystals.

September 8, 2015
Author(s)
John J. Bollinger, Kyle Arnold, Elnur Haciyev, Chern Hui Lee, Eduardo Paez, M. D. Barrett
… feasibility of precision frequency metrology with large ion crystals. For clock candidates with a negative … small number of ions (3). These results hail a new era for ion-based atomic clocks, allowing them to achieve stability … atomic clocks, ion crystals, ion traps, optical frequency metrology, scalar …

Molecular Imaging Secondary Ion Mass Spectrometry for the Characterization of Patterned Self-assembled Monolayers on Silver and Gold

January 1, 1994
Author(s)
John G. Gillen, J. Bennett, Michael J. Tarlov, Donald R. Burgess Jr.
… Self-assembly of alkanethiol monolayers on gold and silver substrates is a fast, easy, and convenient … In this correspondence, we report on the use of secondary ion mass spectrometry (SIMS) for characterizing methods of … of two chemically distinct monolayers on silver and gold surfaces. Production of these molecular patterns is the …

Measurement of yield stress for concentrated suspensions using a plate device

January 1, 2010
Author(s)
Min-Hong Zhang, Chiara C. Ferraris, Huaning Zhu, Vincent Picandet, Max A. Peltz, Paul E. Stutzman, Daniel De Kee
… general and for a cementitious material in particular. A plate device is a recent development in the measurement of … below most rotaional rheometers. This paper present the plate device and the modifications made so that it can be … cement paste, plate device, suspension rheology, yield stress, workability …

Structure of [C 4 mpyr][NTf 2 ] Room-Temperature Ionic Liquid at Electrified Gold Interfaces

April 19, 2012
Author(s)
Yansen Lauw, Michael D. Horne, Theo Rodopoulos, Vera Lockett, Bulent Akgun, William A. Hamilton, Andrew R. J. Nelson
… 2 ]) room-temperature ionic liquid at an electrified gold interface was studied using neutron reflectometry, … were observed between the reflectivity data collected on a gold electrode at three different applied potentials. … (specific) adsorption of [C 4 mpyr] + onto the gold electrode. …
Displaying 226 - 250 of 4632
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