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Displaying 43176 - 43200 of 143780

Stability of Solid-Supported Enzyme Catalysts for Ring-Opening Polymerization

March 19, 2012
Author(s)
Sara V. Orski, Santanu S. Kundu, Kathryn L. Beers, Richard Gross
The enzyme Candida antarctica Lipase B (CAL B), immobilized on a crosslinked poly(methyl methacrylate) (PMMA) support, catalyzes the ring-opening polymerization of ε-caprolactone to make biodegradable polyesters. Weak hydrophobic interactions of CAL B

The immunotoxicity of perfluorinated compounds: Recent developments

March 19, 2012
Author(s)
Jennifer M. Lynch, Jamie DeWitt, M.M. Peden-Adams, Dori Germolec
Perfluorinated compounds (PFCs) are environmentally widespread, persistent, and bioaccumulative chemicals with multiple toxicities reported in experimental models and wildlife, including immunomodulation. The two most commonly detected compounds, which

Extending transmission crystal x-ray spectroscopy to moderate-intensity laser driven sources

March 17, 2012
Author(s)
Lawrence T. Hudson, J. Y. Mao, L. M. Chen, John F. Seely, L. Zhang, Y. Q. Sun, X. X. Lin, J. Zhang
We present spectroscopic measurements of characteristic Kα and Kβ emissions from Mo targets irradiated by a 100 fs, 200 mJ, Ti: sapphire laser with intensity of 1017 W/cm2 to 1018 W/cm2 per pulse. This research pursues novel x-ray sources for medical

Selected Procedures for Volumetric Calibrations

March 16, 2012
Author(s)
Georgia L. Harris
This NIST IR of Selected Publications has been compiled as an interim update for a number of Good Laboratory Practices, Good Measurement Practices, and Standard Operating Procedures for Volume Calibrations. These procedures are updates to procedures that

Carbohydrate-Functionalized Surfactant Vesicles for Controlling Glycan Density

March 15, 2012
Author(s)
Monique A. Makos, Rebecca A. Zangmeister
We report on the development of a method for rapidly characterizing the glycan binding properties of lectins. Catanionic surfactant vesicles were prepared that spontaneously formed in water and remained stable at room temperature for months. By varying the

Environmental Metabolomics

March 15, 2012
Author(s)
Daniel W. Bearden
The application of metabolomics in the field of environmental science or ecology, which has developed based substantially on NMR spectroscopic approaches, is a fast paced, rapidly developing field which seems to be poised to help re-frame the discussion of

Coherent Dynamics of meta-Toluidine Investigated by QuasiElastic Neutron Scattering

March 14, 2012
Author(s)
Antonio Faraone, Kunlun Hong, Larry Kneller, Michael Ohl, John R. Copley
The coherent dynamics of a typical fragil glass former, meta-toluidine, was investigated at the molecular level using QuasiElastic Neutron Scattering, with Time-of-Flight and Neutron Spin Echo spectrometers. It is well known that the static structure

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
We report on a systematic investigation of molecular conjugation of tumor necrosis factor protein-α (TNF) onto gold nanoparticles (AuNPs) and the subsequent binding behavior to its antibody (anti-TNF). We employ a combination of physical and spectroscopic
Displaying 43176 - 43200 of 143780
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