Materials Literature
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Hydrogenase I (bidirectional) and hydrogenase II (uptake) of Clostridium pasteurianum have been investigated by electron paramagnetic resonance (EPR) spectroscopy, in the presence and absence of the inhibitor, CO. These hydrogenases contain both a novel type of iron-sulfur cluster (H), which is the proposed site of H2…
Abstract Octahedral Fe(III) in the crystal structures of three different smectites was reduced to Fe(II) by actively growing microorganisms indigenous to the clay. The smectites were SWa‐1 ferruginous smectite from Grant County, Washington; API 33a, Garfield Nontronite; and API 25, Upton montmorillonite. Bacterial gro…
The structures of amorphous zinc silicate and sodium zinc silicate have been studied using the molecular dynamics computer simulation technique. Results showed that bond lengths and coordination numbers for the individual atomic species fit within the range of results from a number of crystalline and glassy silicates.…
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStarburst polyether dendrimersAnne Buyle Padias, H. K. Hall Jr., Donald A. Tomalia, and J. R. McConnellCite this: J. Org. Chem. 1987, 52, 24, 5305–5312Publication Date (Print):November 1, 1987Publication History Published online1 May 2002Published inissue 1 November 1987http…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotochemical hydrogen evolution via singlet-state electron-transfer quenching of zinc tetra(N-methyl-4-pyridyl)porphyrin cations in a zeolite L based systemLalchan Persaud, Allen J. Bard, Alan Campion, Marye Anne Fox, Thomas E. Mallouk, Stephen E. Webber, and J. M. WhiteCit…
A technique that quantifies the in-plane flow properties of fibrous networks is pre sented. A radial flow geometry allows the simultaneous study of more than one in- plane flow direction. The shape and position of a radially advancing fluid front define directional permeabilities in the plane, which can be used to com…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrdered packing arrangements of spherical micelles of diblock copolymers in two and three dimensionsEdwin L. Thomas, David J. Kinning, David B. Alward, and Chris S. HenkeeCite this: Macromolecules 1987, 20, 11, 2934–2939Publication Date (Print):November 1, 1987Publication Hi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCorrosion, layer formation, and oxide reduction of passive iron in alkaline solution: a combined electrochemical and surface analytical studyS. Haupt and H. H. StrehblowCite this: Langmuir 1987, 3, 6, 873–885Publication Date (Print):November 1, 1987Publication History Publis…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInversion of the cyclotribenzylene cone in a columnar mesophase: a potential way to ferroelectric materialsJacques Malthete and Andre ColletCite this: J. Am. Chem. Soc. 1987, 109, 24, 7544–7545Publication Date (Print):November 1, 1987Publication History Published online1 May…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTransformation of native cellulose crystals induced by saturated steam at high temperaturesFumitaka Horii, Hiroyuki Yamamoto, Ryozo Kitamaru, Mitsuhiko Tanahashi, and Takayoshi HiguchiCite this: Macromolecules 1987, 20, 11, 2946–2949Publication Date (Print):November 1, 1987P…
An exact analytic formula for the magnetostatic interaction energy of a three-dimensional array of ferromagnetic cubes is presented. The magnetization within each cube is assumed constant but varies in direction from cube to cube. From the expressions for the interaction energy, exact formulas for the effective magnet…
The self-diffusivity of Brownian hard spheres in a simple shear flow is studied by numerical simulation. Particle trajectories are calculated by Stokesian dynamics, with an accurate representation of the suspension hydrodynamics that includes both many-body interactions and lubrication. The simulations are of a monola…
Abstract Guided by the symmetry in a natural way, periodic potential surfaces partition the space in solid crystalline compounds. The arrangement of atoms, clusters and molecules obviously follows the (in general) curved shape of these ‘space partitioners’. In structures, the atoms therefore choose only a very limited…
The molecular architecture of the rabbit skeletal muscle aldolase (D-fructose-1,6-bisphosphate D-glyceraldehyde-3-phosphate-lyase, EC 4.1.2.13) tetramer has been determined to 2.7-A resolution. Solution of the three-dimensional structure of rabbit muscle aldolase utilized phase information from a single isomorphous Pt…
Abstract In condensed matter systems there are, in general, stresses at atomic level which are related to local incompatibilities. Only in perfect crystals in which all the atoms are equivalent such incompatibilities do not exist but they are present in ordered structures with non‐equivalent atoms and in any disordere…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGlass transition and melting behavior of poly(thio-1,4-phenylene)Stephen Z. D. Cheng, Zong Quan Wu, and Bernhard WunderlichCite this: Macromolecules 1987, 20, 11, 2802–2810Publication Date (Print):November 1, 1987Publication History Published online1 May 2002Published inissu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfrared and x-ray photoelectron spectroscopy study of carbon monoxide and carbon dioxide on platinum/ceriaT. Jin, Y. Zhou, G. J. Mains, and J. M. WhiteCite this: J. Phys. Chem. 1987, 91, 23, 5931–5937Publication Date (Print):November 1, 1987Publication History Published onl…
Molecular-dynamics simulations have been carried out on a ``soft-sphere'' model for binary alloys quenched into supercooled and amorphous states. The main emphasis of the work is on the static and dynamic characterization of the glass transition. A comparison between molecular-dynamics data and the results of a self-c…
We have determined the three-dimensional structure of two crystal forms of an antilysozyme Fab-lysozyme complex by x-ray crystallography. The epitope on lysozyme consists of three sequentially separated subsites, including one long, nearly continuous, site from Gln-41 through Tyr-53 and one from Gly-67 through Pro-70.…