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Journals

Fractionation and Characterization of Gold Nanoparticles in Aqueous Solution: Asymmetric-Flow Field Flow Fractionation with MALS, DLS and UV-Vis Detection

August 30, 2010

Author(s)

Tae Joon Cho, Vincent A. Hackley

Asymmetrical-flow field flow fractionation (AFFF) separates constituents based on hydrodynamic size, and is emerging as a powerful tool for obtaining high...

Theory for a Dissipative Droplet Soliton Excited by a Spin Torque Nanocontact

August 30, 2010

Author(s)

Mark Hoefer, Thomas J. Silva, Mark W. Keller

A distinct type of solitary wave is predicted to form in spin torque oscillators when the free layer has a sufficiently large perpendicular anisotropy. In this...

Microfabricated High-Moment Micrometer-Sized MRI Contrast Agents

August 26, 2010

Author(s)

Gary Zabow, John M. Moreland, Stephen Dodd, alan koretsky, erik shapiro

While chemically synthesized superparamagnetic microparticles have enabled much new research based on MRI tracking of magnetically labeled cells, signal-to...

3D elemental and structural analysis of biological specimens using electrons and ions

August 26, 2010

Author(s)

Keana C. Scott

We demonstrate the utility of focused ion beam scanning electron microscopy (FIB SEM) combined with energy dispersive x-ray spectrometry (EDS) for 3-dimensional...

Improving the NIST High-Performance ICP-OES Methodology through Exact Matching

August 26, 2010

Author(s)

Michael R. Winchester, Therese A. Butler, Gregory C. Turk

High-Performance (HP-)ICP-OES was developed at the National Institute of Standards and Technology (NIST) approximately a decade ago as a means of performing...

Carbon Nanotubes: Measuring Dispersion and Length

August 26, 2010

Author(s)

Jeffrey A. Fagan, Barry J. Bauer, Erik K. Hobbie, Matthew Becker, Angela R. Hight Walker, Jeffrey R. Simpson, Jae H. Chun, Jan Obrzut, Vardhan Bajpai, Frederick R. Phelan Jr., Daneesh O. Simien, JiYeon Huh, Kalman D. Migler

Advanced technological uses of single-wall carbon nanotubes (SWCNTs) rely on the production of single length and chirality populations that are currently only...

Antiferromagnetic Critical Pressure in URu₂Si₂ Under Hydrostatic Conditions

August 26, 2010

Author(s)

Nicholas P. Butch, Jason R. Jeffries, Song Xue Chi, Juscelino Leao, Jeffrey W. Lynn, M. B. Maple

Design Considerations for Proteomic Reference Materials

August 25, 2010

Author(s)

David M. Bunk

In order to improve the repeatability, comparability, and accuracy of proteomic measurements, there has been considerable international effort to develop...

Interplay Between Fe and Nd Magnetism in NdFeAsO Single Crystals

August 25, 2010

Author(s)

W. Tian, William D. Ratcliff, M. G. Kim, J. -Q. Yan, Paul A. Kienzle, Qingzhen Huang, B. Jensen, K.W. Dennis, R.W. McCallum, Thomas A. Lograsso, R.J. McQueeney, A. I. Goldman, Jeffrey W. Lynn, A. Kreyssig

Temperature dependence of the diffusive conductivity of bilayer graphene

August 24, 2010

Author(s)

Shaffique Adam, Mark D. Stiles

Assuming diffusive carrier transport and employing an effective medium theory, we calculate the temperature dependence of bilayer graphene conductivity due to...

Dispersion Stabilization of Silver Nanoparticles in Synthetic Lung Fluid Studied under In-Situ Conditions

August 23, 2010

Author(s)

Robert I. MacCuspie, Andrew J. Allen, Vincent A. Hackley

The dispersion stabilization of silver nanoparticles in synthetic lung fluid is studied systematically to determine the key ingredients for colloidal...

yocto-Newton force detection sensitivity using trapped ions

August 22, 2010

Author(s)

Michael J. Biercuk, Joseph W. Britton, Hermann Uys, Aaron Vandevender, John Bollinger

Recent experimental advances have shown that it is possible to detect forces arising from electric fields at a level of aN/ √Hz (atto = 10 -18 through coupling...

Structural and Electronic Trends in Rare-Earth Technetate Pyrochlores

August 21, 2010

Author(s)

Philippe F. Weck, Eunja Kim, Frederic Poineau, Efrain E. Rodriguez, Alfred P. Sattelberger, Kenneth R. Czerwinski

Phase-Sensitive Neutron Reflectometry Measurements Applied in the Study of Photovoltaic Films

August 20, 2010

Author(s)

Jonathan W. Kiel, M.E. Mackay, Brian Kirby, Brian B. Maranville, Charles Majkrzak

Due to low charge carrier mobilities in polymer based solar cells, device performance is dictated by the nanoscale morphology of the active layer components...

AFM characterization of nanopositioner in-plane stiffnesses

August 19, 2010

Author(s)

Seung Ho Yang, Yong Sik Kim, Premsagar P. Kavuri, Jae M. Yoo, Young M. Choi, Nicholas G. Dagalakis

A versatile method for measurement of in-plane stiffness of micro-elements was developed and its usefulness has been demonstrated. The in-plane stiffness of a...

Doping dependence of spin dynamics in electron-doped Ba(Fe1−⁢Co)2⁢As2

August 18, 2010

Author(s)

K. Matan, S. Ibuka, R. Morinaga, Song Xue Chi, Jeffrey Lynn, A. D. Christianson, M. D. Lumsden, T. J. Sato

Modeling atomic structure at the nanoscale using the PDF: simulation studies of monoatomic nanoparticles

August 17, 2010

Author(s)

Katharine M. Mullen, Victor L. Krayzman, Igor Levin

The pair distribution function (PDF), as determined from total x-ray or neutron scattering, is a valuable probe of atomic arrangements in nanoparticles...

Thermodynamic Underpinnings of Cell Alignment on Controlled Topographies

August 17, 2010

Author(s)

Yifu Ding, Jirun Sun, Hyun W. Ro, Zhen Wang, Jing N. Zhou, Nancy J. Lin, Sheng Lin-Gibson, Marcus T. Cicerone, Christopher L. Soles

Cells sense and respond to the chemical, topographical, and mechanical features of their substrate and extracellular matrix. Shape and locomotive response to...

Monodisperse Gold-Copper bimetallic Nanocubes: Facile One-Step Synthesis with Controllable Sizes and Compositions

August 16, 2010

Author(s)

Yonglin Liu, Angela R. Hight Walker

We demonstrate a one-pot polyol strategy for the synthesis of Au - Cu perfect nanocubes. To the best of the authors knowledge, this represents the first-time...

Comparison of Orthogonal Mass Spectrometry Platforms for the Determination of Amino Acid Concentrations in Human Plasma Certifying NIST Standard Reference Material 1950

August 16, 2010

Author(s)

Mark S. Lowenthal, Karen W. Phinney, Elizabeth A. McGaw

Absolute concentrations of amino acids in a human plasma pool were determined independently using four quantification methods. Orthogonal separation schemes (LC...

Manipulation of the elastic modulus of polymers at the nanoscale: Influence of UV-ozone crosslinking and plasticizer

August 16, 2010

Author(s)

Jessica M. Torres, Christopher Stafford, Bryan D. Vogt

The mechanical stability of polymeric nanostructures is critical to the processing, assembly and performance of numerous existing and emerging technologies. A...

Solidification of a heterogeneous Multiphase Laves-based Hydrogen Storage Alloy

August 15, 2010

Author(s)

William J. Boettinger, Dale E. Newbury, Ke Wang, Leonid A. Bendersky, Chun Chiu, Ursula R. Kattner, K. Young, B. Chao

The solidification microstructure of a nine-element Zr-Ni based AB(sub 2) type C14/C15 Laves hydrogen storage alloy is determined. The selected composition...

Examination of Multiphase (Zr,Ti)(V,Cr,Mn,Ni)2 Ni-MH Electrode Alloys. Part 2: Solid-State Transformation of the Interdendritic B2 Phase Phase

August 15, 2010

Author(s)

Leonid A. Bendersky, Ke Wang, William J. Boettinger, Dale E. Newbury, K. Young, B. Chao

Multi-component Zr-Ti-Ni-TM (TM=V, Cr, Mn and Co) cast alloys intended for use as negative electrodes in Ni metal hydride batteries were studied to determine...

Detection of Poultry Spoilage Markers from Headspace Analysis with Cryoadsorption on a Short Alumina PLOT Column

August 15, 2010

Author(s)

Tara Lovestead, Thomas J. Bruno

A rapid and simple diagnostic tool for the detection of meat spoilage as early as possible would be invaluable to ensure meat quality during production...

Subpixel Image Stitching for Linewidth Measurement Based on Digital Image Correlation

August 13, 2010

Author(s)

Wei Chu, Joseph Fu, Theodore Vorburger

"Chemometric Methods in Capillary Electrophoresis"

August 13, 2010

Author(s)

Katrice A. Lippa

Tailored distribution of single wall carbon nanotube from arc plasma synthesis using magnetic fields

August 13, 2010

Author(s)

Jeffrey A. Fagan, Olga Volotskova, Alexey Shashurin, Michael Keidar, JiYeon Huh, Frederick R. Phelan Jr.

In this paper we report a method for tuning the distribution of SWCNTs produced by the anodic arc production method via the application of non-uniform magnetic...

Giant Magnetoresistance and Long-Range Antiferromagnetic Interlayer Exchange Coupling in (Ga,Mn)As/GaAs:Be Multilayers

August 13, 2010

Author(s)

Sun-Jae Chung, Sanghoon Lee, J.-H. Chung, Taehee Yoo, Hakjoon Lee, Brian Kirby, X. Liu, J. K. Furdyna

Creation and manipulation of Feshbach resonances with radio-frequency radiation

August 12, 2010

Author(s)

Thomas M. Hanna, Eite Tiesinga, Paul S. Julienne

We present a simple technique for studying collisions of ultracold atoms in the presence of a magnetic ﬁeld and radio-frequency radiation (rf ). Resonant...

Recognizing people from dynamic and static faces and bodies: Dissecting identity with a fusion approach

August 12, 2010

Author(s)

Alice J. O'Toole, P. Jonathon Phillips, Samuel Weimer, Dana A. Roark, Julianne Ayadd, Robert Barwick, Joseph Dunlop

The goal of this study was to evaluate human accuracy at identifying people from static and dynamic presentations of faces and bodies. Participants matched...

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