Materials Literature
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Transparent conducting cadmium oxide (CdO) films have been deposited by spray pyrolysis. The film thicknesses have been determined using Rutherford backscattering spectrometry. X-ray diffraction measurements show that the films are polycrystalline with a preferential orientation along the (111) diffraction plane and t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhysical Properties and Enzymic Degradability of Poly(3-hydroxybutyrate) Stereoisomers with Different StereoregularitiesHideki Abe, Isao Matsubara, Yoshiharu Doi, Yoji Hori, and Akio YamaguchiCite this: Macromolecules 1994, 27, 21, 6018–6025Publication Date (Print):October 1…
This unit describes the procedure for subcloning the sequence encoding the protein of interest into an maltose-binding protein (MBP) vector, and expressing and purifying the fusion protein from the cytoplasm. MBP vectors include a sequence that encodes the four-amino-acid recognition site for the specific protease fac…
In analogy with the well-known theory for fluids a van der Waals theory for solids is proposed. It is shown that, in agreement with recent predictions, the competition between the van der Waals loop of the fluid and the van der Waals loop of the solid can produce three different types of phase diagrams for a simple fl…
Novel polycarbonate (PC) foams with bubbles on the order of 10 μm and cell nucleation densities between 1 and 10 billion cells per cubic centimeter of foam have been produced using carbon dioxide as the blowing agent. The size and number of bubbles can be controlled to produce a wide range of foam densities. This pape…
The unabridged data used in preparing ICRP Publication 38 (1983) and a monograph of the Medical Internal Radiation Dose (MIRD) Committee (Weber et al. 1989) are now available in electronic form. The "ICRP38 collection" contains data on the energies and intensities of radiations emitted by 825 radionuclides (those in I…
Abstract Five different polyaniline salts have been prepared by chemical polymerization of aniline in aqueous solution of different acids. Polyaniline samples have been heat treated at four different temperatures (150, 200, 275, and 375°C) and characterized by electron paramagnetic, electronic absorption, and infrared…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT.pi.-Conjugated Soluble Poly(aryleneethynylene) Type Polymers. Preparation by Palladium-Catalyzed Coupling Reaction, Nonlinear Optical Properties, Doping, and Chemical ReactivityTakakazu Yamamoto, Wataru Yamada, Masakazu Takagi, Kenichi Kizu, Tsukasa Maruyama, Naoki Ooba, Sa…
Effects of tranilast, N-(3,4-dimethoxycinnamoyl)anthranilic acid, on collagen synthesis in cultured human skin fibroblasts were studied. Tranilast was found to inhibit collagen synthesis in a dose-dependent manner to a maximum of 55% at 300 microM during 48 h of treatment; the synthesis of type I and type III collagen…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetic Properties Diagnostic for the Existence of Iron(II)-Iron(II) Bonds in Dinuclear Complexes Which Derive from Stepwise Insertion Reactions on Unsupported Iron-Aryl BondsAlain Klose, Euro Solari, Carlo Floriani, Angiola Chiesi-Villa, Corrado Rizzoli, and Nazzareno ReCi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular Orientation in Rubbed Polyimide Alignment Layers Used for Liquid-Crystal DisplaysN. A. J. M. van Aerle and A. J. W. TolCite this: Macromolecules 1994, 27, 22, 6520–6526Publication Date (Print):October 1, 1994Publication History Published online1 May 2002Published i…
Crystals of (Na 1/2 Bi 1/2 )TiO 3 have grown by the flux technique and the Czochralski method. Nonstoichiometry, twin configurations, and long‐range cation ordering in the crystals have been investigated using X‐ray diffraction and an optical polarizing microscope. It has been found that nonstoichiometry was induced i…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolution and Solid-State Characterization of Highly Rigid, Eight-Coordinate Lanthanide(III) Complexes of a Macrocyclic TetrabenzylphosphinateSilvio Aime, Andrei S. Batsanov, Mauro Botta, Judith A. K. Howard, David Parker, Kanthi Senanayake, and Gareth WilliamsCite this: Inor…
The effects of MgO on sintering and grain growth of alumina in the absence of any other impurities as well as in the presence of various amounts of CaO were investigated using ultrapure (>99.999%) alumina and sintering at 1900°C for 1 h in a clean contamination‐free condition. Critical concentrations of MgO require…
The resistance to pitting of a Fe‐17%Cr alloy in Cl − ‐containing solution ( 0.5 M H 2 SO 4 + 0.3 M NaCl ) and its relationship with the chemical composition of the passive film have been studied by electrochemical and x‐ray photoelectron spectroscopy analyses. Aging of the passive film in the acid solution without or…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUptake of Lipophilic Organic Cu, Cd, and Pb Complexes in the Coastal Diatom Thalassiosira weissflogiiJonathan T. Phinney and Kenneth W. BrulandCite this: Environ. Sci. Technol. 1994, 28, 11, 1781–1790Publication Date (Print):October 1, 1994Publication History Published onlin…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrdered Structures of Block Copolymer/Homopolymer Mixtures. 5. Interplay of Macro- and Microphase TransitionsSatoshi Koizumi, Hirokazu Hasegawa, and Takeji HashimotoCite this: Macromolecules 1994, 27, 22, 6532–6540Publication Date (Print):October 1, 1994Publication History P…
Crystallographic and spectroscopic studies on galactose oxidase have shown that the active site involves a free radical on tyrosine 272, one of the ligands coordinated to the Cu2+ cofactor. A novel thioether bond between tyrosine 272 and cysteine 228, and a stacking tryptophan 290, over this bond, are features of the…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT"Redox Tautomerism" in High-Valent Metal-oxo-aquo Complexes. Origin of the Oxygen Atom in Epoxidation Reactions Catalyzed by Water-Soluble MetalloporphyrinsJean Bernadou, Anne-Sylvie Fabiano, Anne Robert, and Bernard MeunierCite this: J. Am. Chem. Soc. 1994, 116, 20, 9375–93…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSelf-Assembly in Two Dimensions: Surface Micelles and Domain Formation in MonolayersJacob IsraelachviliCite this: Langmuir 1994, 10, 10, 3774–3781Publication Date (Print):October 1, 1994Publication History Published online1 May 2002Published inissue 1 October 1994https://pub…