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Displaying 26 - 50 of 56

A Quantitative Study of Nanoparticle Release from Nanocoatings Exposed to UV Radiation

April 7, 2014
Author(s)
Li Piin Sung, Deborah S. Jacobs, Justin M. Gorham, Savelas A. Rabb, Xiaohong Gu, Lee L. Yu, Tinh Nguyen
Nanoparticles are increasingly used in polymer coatings (i.e., nanocoatings) to improve multiple properties of traditional coatings such as mechanical, electrical, gas barrier, and UV resistance. These high performance nanocoatings are often used in

Characterization of Surface Accumulation and Release of Nanosilica During Irradiation of Polymer Nanocomposites with Ultraviolet Light

August 12, 2012
Author(s)
Tinh Nguyen, Bastien T. Pellegrin, Coralie Bernard, Savelas A. Rabb, Paul E. Stutzman, Justin M. Gorham, Xiaohong Gu, Lee L. Yu, Joannie W. Chin
Nanofillers are increasingly used for enhancing multiple properties of polymeric materials in many applications. However, polymers are susceptible to photodegradation by solar ultraviolet (UV) radiation Therefore, nanofillers in a polymer nanocomposite

Quantification of ligand packing density on gold nanoparticles using ICP-OES

February 18, 2012
Author(s)
Sherrie R. Elzey, De-Hao D. Tsai, Savelas A. Rabb, Lee L. Yu, Michael R. Winchester, Vincent A. Hackley
In this study, a prototypical thiolated organic ligand, 3-mercaptopropionic acid (MPA), was conjugated on gold nanoparticles (AuNPs), and packing density was measured on an ensemble-averaged basis using inductively coupled plasma optical emission

Certification of Three NIST Renewal Soil Standard Reference Materials(R) for Element Content: SRM 2709a San Joaquin Soil, SRM 2710a Montana Soil I, and SRM 2711a Montana Soil II

June 1, 2010
Author(s)
Elizabeth A. Mackey, Christopher S. Johnson, Richard M. Lindstrom, Stephen E. Long, Anthony F. Marlow, Karen E. Murphy, Rick L. Paul, Rachel S. Popelka-Filcoff, Savelas A. Rabb, John R. Sieber, Rabia Oflaz, Bryan E. Tomlin, Laura J. Wood, James H. Yen, Lee L. Yu, Rolf L. Zeisler, S. A. Wilson, M. G. Adams, Z. A. Brown, P. L. Lamothe, J. E. Taggart, C. Jones, J. Nebelsick
For the past 20 y, the National Institute of Standards and Technology has provided three soil Standard Reference Materials certified for element content: SRM 2709 San Joaquin Soil (Baseline Trace Element Concentrations); SRM 2710 Montana Soil I (Highly

Characterization of SiGe Films for use as a National Institute of Standards and Technology (NIST) Microanalysis Reference material (RM 8905)

February 1, 2010
Author(s)
Ryna B. Marinenko, Shirley Turner, David S. Simons, Savelas A. Rabb, Rolf L. Zeisler, Lee L. Yu, Dale E. Newbury, Rick L. Paul, Nicholas W. Ritchie, Stefan D. Leigh, Michael R. Winchester, Lee J. Richter, Douglas C. Meier, Keana C. Scott, D Klinedinst, John A. Small
Bulk SiGe wafers cut from single-crystal boules and two SiGe thick films (4 m and 5 m thick) on Si wafers were evaluated with the electron probe microanalyzer for the extent of heterogeneity and composition for use as reference materials needed by the

Factors Affecting Quantification of Total DNA by UV Spectroscopy and PicoGreen Fluorescence

August 26, 2009
Author(s)
Marcia J. Holden, Ross J. Haynes, Savelas A. Rabb, Neena Satija, Kristina Yang, Joe Blasic
The amount of total DNA in a preparation extracted from tissues can be measured several ways, each method offering advantages and disadvantages. It is of interest for the sake of accuracy in quantitation to compare methodologies and determine if good

A Volcano Curve: Optimizing Methanol Electro-oxidation on Pt decorated Ru Nanoparticles

June 26, 2009
Author(s)
Christopher D. Zangmeister, Savelas A. Rabb, Du Bingchen, YuYe Tong
Controlled Pt adlayers were deposited on commercial Ru nanoparticles (NPs) using an industrially scalable one-pot ethylene glycol (EG) reduction based method and were characterized by X-ray diffraction (XRD), electrochemical (EC) CO stripping voltammetry

Potential Primary Measurement Tool for the Quantification of DNA

May 1, 2009
Author(s)
Ryan G. Brennan, Savelas A. Rabb, Marcia J. Holden, Michael R. Winchester
An automated sample introduction system, utilizing a demountable direct injection high efficiency nebulizer (d DIHEN), is successfully incorporated for the first time with an inductively coupled plasma optical emission spectrometer (ICP-OES) for the
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