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You searched on: Topic Area: Characterization, Nanometrology, and Nanoscale Measurements

Displaying records 121 to 130 of 154 records.
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121. Dispersion Stability of Nanoparticles in Ecotoxicological Investigations: A Comparison of Different Techniques
Topic: Characterization, Nanometrology, and Nanoscale Measurements
Published: 2/26/2011
Authors: Ratna Tantra, Shingheng Jing, Siva Kaliyappan, Nicholas Walker, James Noble, Vincent A Hackley
Abstract: One of the main challenges in nanoecotoxicological investigations is in the selection of the most suitable measurement methods and protocols for nanoparticle characterisation. Several parameters have been identified as being important as they govern ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906180

122. PREPARATION OF A NANOSCALE TiO2 AQUEOUS DISPERSION FOR TOXICOLOGICAL OR ENVIRONMENTAL TESTING
Topic: Characterization, Nanometrology, and Nanoscale Measurements
Published: 1/24/2011
Authors: Julian S. Taurozzi, Vincent A Hackley
Abstract: This work prescribes the preparation of a P25 nanoparticle dispersion in high purity deionized water, as a first step towards the preparation of nanoscale P25 dispersions in relevant biological and environmental matrices. This protocol should be used ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907260

123. Ultrasonic Dispersion of Nanoparticles for Environmental, Health and Safety Assessment--Issues and Recommendations
Topic: Characterization, Nanometrology, and Nanoscale Measurements
Published: 11/30/2010
Authors: Julian S. Taurozzi, Vincent A Hackley, Mark R. Wiesner
Abstract: A common approach for the study of the environmental and biological interactions of nanomaterials relies on the ultrasonic disruption of powders to obtain nanoparticle suspensions. Yet, the widespread and inconsistent use of ultrasonic treatment acro ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905978

124. 3D Nanoscale Characterization of Thin-Film Organic Photovoltaic Device Structures via Spectroscopic Contrast in the TEM
Topic: Characterization, Nanometrology, and Nanoscale Measurements
Published: 10/21/2010
Authors: Andrew A Herzing, Lee J Richter, Ian M. Anderson
Abstract: The three-dimensional characterization of third generation photovoltaic device structures at the nanometer scale is essential to the development of efficient, reliable, and inexpensive solar cell technologies. Electron tomography is a powerful metho ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905254

125. Characterization of a Soluble Anthradithiophene Derivative
Topic: Characterization, Nanometrology, and Nanoscale Measurements
Published: 10/1/2010
Authors: Brad Conrad, Calvin Chan, Marsha A. Loth, Sean R Parkin, Xinran Zhang, John E Anthony, David J Gundlach
Abstract: The structural and electrical properties of a new solution processable material, 2,8-diflouro-5,11-tert-butyldimethylsilylethynl anthradithiophene (TBDMS), were measured for single crystal and spun cast thin-film transistors. TBDMS is observed to rea ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905704

126. High-Frequency Nanofluidics: A Universal Formulation of the Fluid Dynamics of MEMS and NEMS
Topic: Characterization, Nanometrology, and Nanoscale Measurements
Published: 9/23/2010
Authors: Kamil L. Ekinci, V. Yakhot, Sukumar Rajauria, C. Colosqui, D. M. Karabacak
Abstract: A solid body undergoing oscillatory motion in a fluid generates an oscillating flow. Oscillating flows in Newtonian fluids were first treated by G.G. Stokes in 1851. Since then, this problem has attracted much attention, mostly due to its technologic ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904957

127. Fractionation and Characterization of Gold Nanoparticles in Aqueous Solution: Asymmetric-Flow Field Flow Fractionation with MALS, DLS and UV-Vis Detection
Topic: Characterization, Nanometrology, and Nanoscale Measurements
Published: 8/30/2010
Authors: Tae Joon Cho, Vincent A Hackley
Abstract: Asymmetrical-flow field flow fractionation (AFFF) separates constituents based on hydrodynamic size, and is emerging as a powerful tool for obtaining high-resolution information on the size, molecular weight, composition, and stability of nanoscale p ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905979

128. Separation and Metrology of Nanoparticles by Nanofluidic Size Exclusion
Topic: Characterization, Nanometrology, and Nanoscale Measurements
Published: 8/11/2010
Authors: Samuel M Stavis, Jon C Geist, Michael Gaitan
Abstract: A nanofluidic approach to the separation and metrology of nanoparticles is demonstrated. Advantages of this approach include nanometer-scale resolution, nanometer-scale to submicrometer-scale range, mitigation of hydrodynamic and diffusional limitat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904215

129. Statistics of Camera-Based Single-Particle Tracking
Topic: Characterization, Nanometrology, and Nanoscale Measurements
Published: 7/22/2010
Author: Andrew J. Berglund
Abstract: Through analysis of digital images, camera-based single-particle tracking enables quantitative determination of transport properties of nanoparticles and molecules and provides nanoscale information about material properties such as viscosity and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905460

130. Shell and ligand-dependent blinking of CdSe-based core/shell nanocrystals
Topic: Characterization, Nanometrology, and Nanoscale Measurements
Published: 7/7/2010
Authors: Bonghwan Chon, Sung Jun Lim, Wonjung Kim, Hyeong G. Kang, Taiha Joo, Jeeseong Hwang, Seung Koo Shin
Abstract: Blinking of zinc blende CdSe-based core/shell nanocrystals is studied as a function of shell materials and surface ligands. CdSe/ZnS, CdSe/ZnSe/ZnS and CdSe/CdS/ZnS core/shell nanocrystals are prepared by colloidal synthesis and six monolayers of lar ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903812



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