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.

Nanotechnology

Search Publications

Search Title, Abstract, Conference, Citation, Keyword or Author
  • Published Date
Displaying 401 - 425 of 940

Utilizing Nearest-Neighbor Interactions to Alter Charge Transport Mechanisms in Molecular Assemblies of Porphyrins on Surfaces

May 27, 2015
Author(s)
James G. Kushmerick, Amanda E. Schuckman, Lisa M. Perez, Mikki Vinodu, Joao Tome, Lam H. Yu, Charles M. Drain, James D. Batteas
When tunneling is the dominant mechanism of charge transport in a molecular junction, the conductivity of the junction is largely insensitive to chemical and structural perturbations which do not impact the overall length of the junction. This severely

Thermal Analysis of Nanoparticles: Methods, Kinetics and Recent Advances

May 4, 2015
Author(s)
Elisabeth Mansfield
This chapter will provide an overview of the thermal techniques available to study nanoparticles, including thermogravimetric analysis, calorimetry and differential scanning calorimetry. The use of thermoanalysis for the measurement of nanoparticle purity

Terbium-Doped Magnetite Nanocrystals for Multimodal Imaging Agents

May 1, 2015
Author(s)
Katherine P. Rice, Stephen E. Russek, Roy H. Geiss, Justin M. Shaw, Robert J. Usselman, Eric R. Evarts, Thomas J. Silva, Hans T. Nembach, Elke Arenholz, Yves Idzerda
High quality cubic Tb-doped magnetite nanocrystals have been fabricated and have shown that the Tb is incorporated into the octahedral 3+ sites. Magnetization and FMR data indicate that the Tb spins are weakly coupled to the iron spin lattice at room

Elemental characterization of Single-Wall Carbon Nanotube (SWCNT-1) reference material by neutron and prompt gamma activation analysis

April 7, 2015
Author(s)
Rick L. Paul, Rabia Oflaz, Jan Kucera, J W Bennett, E. A. De Nadai Fernandes, M. Kubesova, M. A. Bacchi, A. J. Stopic, R. E. Sturgeon, P. Grinberg
Instrumental neutron activation analysis with both relative and k0 standardization was used in four experienced laboratories to determine element mass fractions in single-wall carbon nanotube certified reference material (CRM) SWCNT-1. Results obtained

Interactions of Microorganisms with Polymer Nanocomposites Containing Different Loadings of Oxidized Single and Multi-walled Carbon Nanotubes

March 27, 2015
Author(s)
David G. Goodwin , Kris M. Marsh, Iruhany B. Sosa, Julianne B. Payne, Justin Gorham, Edward J. Bouwer, D H. Fairbrother
The environmental fate and impact of polymer nanocomposites (PNCs) containing carbon nanotubes (CNTs) will depend upon their interactions with microorganisms, with implications for the antimicrobial properties and long term persistence of PNCs. Using

Preparation of silver nanoparticle loaded cotton threads to facilitate measurement development for textile applications

January 26, 2015
Author(s)
Justin M. Gorham, Karen E. Murphy, Jingyu Liu, Dimitri Tselenchuk, Gheorghe NMN Stan, Thao M. Nguyen, Richard D. Holbrook, Michael R. Winchester, Robert F. Cook, Robert MacCuspie, Vincent A. Hackley
FOREWORD This NIST special publication (SP) is one in a series of NIST SPs that address research needs articulated in the National Nanotechnology Initiative (NNI) Environmental, Health, and Safety Research Strategy published in 2011 [1]. This Strategy

3D TEM Tomography of Templated Bilayer Films of Block Copolymers

December 23, 2014
Author(s)
Kevin W. Gotrik, Thomas F. Lam, Adam F. Hannon, Wubin Bai, Jonathan P. Winterstein, Alfredo Alexander-Katz, James Alexander Liddle, Caroline A. Ross
Transmission electron microscope (TEM) tomography was used to visualize the morphology and 3D connectivity of a lithographically-templated, self-assembled bilayer film of cylinder-forming 45.5 kg/mol polystyrene-block-polydimethylsiloxane. The structure

A self-calibrating optomechanical force sensor with femtonewton resolution

December 10, 2014
Author(s)
John T. Melcher, Julian Stirling, Felipe Guzman, Jon R. Pratt, Gordon A. Shaw
We report the development of an ultrasensitive optomechanical sensor designed to improve the accuracy and precision of force measurements with atomic force microscopy. The sensors achieve quality factors of 4.3x10^6 (a 100-fold improvement over quartz

Biomass Particle Models with Realistic Morphology and Resolved Microstructure for Simulations of Intraparticle Transport Phenomena

December 9, 2014
Author(s)
Peter Ciesielski, Michael F. Crowley, M R. Nimlos, Aric Sanders, Gavin Wiggins, Bryon Donohoe
Biomass exhibits a complex microstructure of directional pores that can vary substantially between species of origin. However, models of biomass particles employed in simulations of conversion processes typically employ over-simplified geometry such as

Polarization of Bi2Te3 Thin Film in a Floating-Gate Capacitor Structure

December 8, 2014
Author(s)
Hui H. Yuan, Kai Zhang, Haitao Li, Hao Zhu, John E. Bonevich, Helmut Baumgart, Curt A. Richter, Qiliang Li
Metal-Oxide-Semiconductor capacitors with Bi2Te3 thin film sandwiched and embedded inside the oxide layer have been fabricated and studied. The capacitors exhibit ferroelectric-like hysteresis which is a result of the robust, reversible polarization of
Was this page helpful?