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Displaying 1576 - 1600 of 2094

Helical, Disordered, and What that Means: Structural Characterization of a New Series of Methyl 1-Thiaoligo(Ethylene Oxide) Self-Assembled Monolayers

September 1, 2002
Author(s)
David J. Vanderah, J Arsenault, H La, Vitalii I. Silin, Curtis W. Meuse, Richard S. Gates
Self-assembled monolayers (SAMs) of a series of linear thiols containing a 1-thiaoligo(ethylene oxide) [TOEO] moiety, i.e., HS(CH2CH2O)xCH3, where x = 3 - 6, were prepared on polycrystalline gold (Au) and characterized by reflection adsorption infrared

Detection Limit of Isotope Dilution Mass Spectrometry

August 1, 2002
Author(s)
Lee L. Yu, John D. Fassett, William F. Guthrie
The detection limit is an important figure of merit for evaluating instrumentation and analytical methods. While the detection limit for techniques using linear calibration functions has been studied extensively, this fundamental metric has rarely been

Optimizing the Covalent Cationization Method for the Mass Spectrometry of Polyolefins

August 1, 2002
Author(s)
Sheng Lin-Gibson, L Brunner, David L. VanderHart, Barry J. Bauer, B M. Fanconi, Charles M. Guttman, William E. Wallace
Previously a new method was introduced for the mass spectrometry of polyolefins whereby an organic cation is covalently bonded to the polymer to produce the necessary ionization for the creation of intact gas?phase macromolecules by matrix-assisted laser

Grafting Segments from the Extracellular Surface of CCR5 onto a Bacteriorhodopsin Transmembrane Scaffold Confers HIV-1 Corcceptor Activity

April 1, 2002
Author(s)
N G. Abdulaev, T T. Strassmaier, T Ngo, R W. Chen, H Lueke, D D. Oprian, K D. Ridge
The G-protein coupled receptor CCR5 binds three distinct B-chemokines on the solvent exposed segments of the extracellular surface. This same region of CCr5 also interacts with certain macrophage-tropic strains of HIV-1. To investigate structural features

The NIST Electron Effective-Attenuation-Length Database

February 1, 2002
Author(s)
Cedric J. Powell, Aleksander Jablonski
The NIST Electron Effective-Attenuation-Length Database provides values of electron effective attenuation lengths (EALs) in solid elements and compounds at selected electron energies between 50 eV and 2,000 eV. The database was designed mainly to provide

Benzocycloarene Hydroxylation by P450 Biocatalysis

January 1, 2002
Author(s)
M P. Mayhew, A. E. Roitberg, Yadu D. Tewari, Marcia J. Holden, David J. Vanderah, V L. Vilker
Experimental and theorectical studies of the hydroxylation of a family of benzocycloarene compounds (benzocyclobutene, benzocyclopentene (indan), benzocyclohexene (tetralin), and benzocycloheptene) by wild type P450cam and mutant Y96F P450cam were
Displaying 1576 - 1600 of 2094
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