Materials Literature
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The gene encoding the F420-dependent N5,N10-methylenetetrahydromethanopterin reductase (Mer), which catalyzes an intermediate step in methanogensis, was cloned and sequenced from the thermophilic Methanobacterium thermoautotrophicum strain Marburg. The gene was identified on a 3.8-kbp BamHI fragment of M. thermoautotr…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal Decomposition of Energetic Materials. 68. Decomposition and Sublimation Kinetics of NTO and Evaluation of Prior Kinetic DataG. K. Williams and T. B. BrillCite this: J. Phys. Chem. 1995, 99, 33, 12536–12539Publication Date (Print):August 1, 1995Publication History Pub…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEvaluation of the Redox Potential of Ag1I(CN)2-/Ag10(CN)22- in Aqueous SolutionS. Remita, P. Archirel, and M. MostafaviCite this: J. Phys. Chem. 1995, 99, 35, 13198–13202Publication Date (Print):August 1, 1995Publication History Published online1 May 2002Published inissue 1…
We have investigated the binding of mutant forms of glucoamylase from Aspergillus niger to the inhibitors 1-deoxynojirimycin and acarbose. The mutants studied comprise a group of single amino acid replacements in conserved regions near the active site of the enzyme. For each mutant we have determined both the affiniti…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure of Amorphous Starch. 1. An Atomistic Model and X-ray Scattering StudyU. Trommsdorff and I. TomkaCite this: Macromolecules 1995, 28, 18, 6128–6137Publication Date (Print):August 1, 1995Publication History Published online1 May 2002Published inissue 1 August 1995http…
We have used contactless photoconductance decay measurements to monitor cleaning processes, surface contamination, and surface roughness. Changes in surface chemistry are evidenced by a degradation (increase) in the surface recombination velocity (decrease in measured decay time). We have applied the tool to monitor c…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics and Mechanism of the Sodium Cation Complexation by 5,11,17,23-Tetra-p-tert-butyl-25,26,27,28-tetramethoxycalix[4]arene in SolutionJohan Blixt and Christian DetellierCite this: J. Am. Chem. Soc. 1995, 117, 33, 8536–8540Publication Date (Print):August 1, 1995Publicati…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, Cyclic Voltammetric and Electrospray Mass Spectrometric Studies of a Series of Tris-Substituted 1,2-Dithiolene Complexes of Tungsten and MolybdenumPolycarpos Falaras, Christine-Anne Mitsopoulou, Dimitris Argyropoulos, Emmanuel Lyris, Nikos Psaroudakis, Ersi Vrachn…
Optical properties of a soluble conducting polymer, perfluoroalkylated poly(diphenylacetylene) (PFPDPA) were clarified. The band-gap energy was evaluated to be about 2.7 eV. Relatively strong fluorescence was observed in PFPDPA, while poly(diphenylacetylene) (PDPA) is considered to be a conducting polymer with a degen…
OBJECTIVE: To improve the in vitro anti-HIV-1 activity, intracellular accumulation in macrophages and in vivo pharmacokinetics and tissue distribution of foscarnet (trisodium phosphonoformate; PFA) by encapsulation in liposomes. METHODS: The accumulation of free and liposome-encapsulated PFA was determined in monocyte…
The switching, fatigue and rejuvenation phenomena of ferroelectric PZT thin films with differently processed electrode-PZT interfaces and of different thicknesses have been investigated. The ferroelectric contribution to the switching parameters has been isolated from the leakage current contribution, thus allowing th…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSeeing the Long-Sought Intermediate in the Reaction of Oxoiron(IV) Porphyrin Cation Radicals with OlefinsZeev Gross and Shay NimriCite this: J. Am. Chem. Soc. 1995, 117, 30, 8021–8022Publication Date (Print):August 1, 1995Publication History Published online1 May 2002Publish…
Escherichia coli serine hydroxymethyltransferase is a 94-kDa homodimer. Each subunit contains a covalently attached pyridoxal-P, which is required for catalytic activity. At which step pyridoxal-P binds in the folding pathway of E. coli serine hydroxymethyltransferase is addressed in this study. E. coli serine hydroxy…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBond Resonance Energies and Kinetic Stabilities of Charged FullerenesJun-ichi AiharaCite this: J. Phys. Chem. 1995, 99, 34, 12739–12742Publication Date (Print):August 1, 1995Publication History Published online1 May 2002Published inissue 1 August 1995https://pubs.acs.org/doi…
Abstract The Sinya Beds of the Amboseli Basin in Tanzania and Kenya consist largely of carbonate rocks and Mg-rich clays that are intensely deformed where exposed in and near former meerschaum mines. The carbonate rocks consist of limestone and dolomite in Tanzania, but only dolomite has been identified in Kenya. Sepi…
The problem of quenching the luminescence associated with interatomic radiative transitions from the valence band to the deeper lying core level is studied for ${\mathrm{BaF}}_{2}$, which is known to be the fastest inorganic scintillator. The measurements of excitation spectra and time decay kinetics of the fast fluor…
Synthetic Diamond Electrodes: Photoelectrochemical Investigation of Undoped and Boron‐Doped Polycrystalline Thin Films, Sakharova, A. Ya., Pleskov, Yu. V., Di Quarto, F., Piazza, S., Sunseri, C., Teremetskaya, I. G., Varnin, V. P.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Structure of Phosphorus(V) Octaethylporphyrins That Contain a .sigma.-Bonded Element-Carbon Bond: Characterization of a Porphyrin Bearing an R-P:O Bond and Relation of the Ruffling of the Porphyrin Core with the Electronegativity of the Axial LigandsYohsuke Yam…
The polyhydroxyalkanoic acid (PHA) biosynthetic gene locus was cloned and characterized from an Acinetobacter sp. isolated from activated sludge. Nucleotide sequence analysis identified three clustered genes, phaAAc (encoding a beta-ketothiolase), phaBAc (encoding an acetoacetyl coenzyme A reductase), and phaCAc (enco…
The Ag content in Ag–As–S glasses can be spatially modified by illumination of visible light. Optical and thermal studies demonstrate that the Ag-content modification is caused by Ag+ ionic migration from the dark to the illuminated region in a sample. The migration can be reversed by changing the illuminated region.…