Materials Literature
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Heat-shock stress causes inactivation and aggregation of various cellular proteins which become further insoluble. Previous studies have shown that the interferon-induced p68 kinase activity was greatly reduced in extracts of heat-shocked HeLa cells, and that the loss of activity was due to a decreased solubility of t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTColumnar liquid crystals in polypeptides. 1. A columnar hexagonal liquid crystal observed in poly(.gamma.-octadecyl L-glutamate)Junji Watanabe and Yoshimasa TakashinaCite this: Macromolecules 1991, 24, 11, 3423–3426Publication Date (Print):May 1, 1991Publication History Publ…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOne-dimensional triplet energy migration in columnar liquid crystals of octasubstituted phthalocyaninesDimitra Markovitsi, Isabelle Lecuyer, and Jacques SimonCite this: J. Phys. Chem. 1991, 95, 9, 3620–3626Publication Date (Print):May 1, 1991Publication History Published onl…
Recent advances in the chemical vapor deposition (CVD) and characterization of diamond films on nondiamond substrates are reviewed. Major growth techniques, including hot filament CVD; microwave, RF, or DC plasma enhanced CVD; and combustion flame growth; as well as a number of hybrid and novel approaches, are describ…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSegregation of block copolymer micelles to surfaces and interfacesKenneth R. Shull, Karen I. Winey, Edwin L. Thomas, and Edward J. KramerCite this: Macromolecules 1991, 24, 10, 2748–2751Publication Date (Print):May 1, 1991Publication History Published online1 May 2002Publish…
In this study, the contact loads and regions on facets of a lumbar motion segment are quantitatively determined. The analysis accounts for both material and geometric nonlinearities and treats the facet articulation as a frictionless, nonlinear, moving contact problem. The loadings consist of axial torque and lateral…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIntrinsic binding properties of a differentiated iron subsite in analogs of native [Fe4S4]2+ clustersJohn A. Weigel and R. H. HolmCite this: J. Am. Chem. Soc. 1991, 113, 11, 4184–4191Publication Date (Print):May 1, 1991Publication History Published online1 May 2002Published…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation of dihelicate and mononuclear complexes from ethane-bridged dimeric bipyridine or phenanthroline ligands with copper(I), cobalt(II), and iron(II) cationsMarie Therese Youinou, Raymond Ziessel, and Jean Marie LehnCite this: Inorg. Chem. 1991, 30, 9, 2144–2148Publica…
The glass transition studied for suspensions of colloidal particles through dynamical light-scattering experiments is analyzed within the mode-coupling theory for the supercooled liquid dynamics. These suspensions are treated as simple atomic systems with a hard-sphere interaction. The scaling properties predicted by…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDependence of electron transfer rates on donor-acceptor angle in bis-porphyrin adductsAnna Helms, David Heiler, and George McLendonCite this: J. Am. Chem. Soc. 1991, 113, 11, 4325–4327Publication Date (Print):May 1, 1991Publication History Published online1 May 2002Published…
Scanning tunneling microscopy (STM) observation was performed for the surface of diamond epitaxial film which was grown on a diamond (001) substrate by microwave plasma-assisted chemical vapor deposition (CVD). The surface was stable even in air, and it showed a reflection high-energy electron diffraction (RHEED) patt…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTransfer energetics of tetraalkylammonium picrates in an aqueous ionic cosolvent system and the salt effect on hydrophobic hydrationHimansu Talukdar and Kiron Kumar KunduCite this: J. Phys. Chem. 1991, 95, 9, 3796–3800Publication Date (Print):May 1, 1991Publication History P…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and structural characterization of decaselenidoheptamercurate(4-) and [Hg7Se9]n4n-: novel metal-chalcogenide frameworksKang Woo Kim and Mercouri G. KanatzidisCite this: Inorg. Chem. 1991, 30, 9, 1966–1969Publication Date (Print):May 1, 1991Publication History Publi…
This review includes new developments in aromatic sulfide and sulfone thermoplastics, electroconductive and electrooptical polymers, polymeric sulfur cements and coatings, sulfonated polymers, and rubber vulcanizing agents. New agrochemicals include sulfonylurea herbicides, and tetrathiocarbonate soil fumigants. A new…
Upon hydrogenation of magnesium in THF using homogeneous magnesium‐anthracene transition‐metal halide catalysts in the presence of small amounts of MgCl 2 and solubilizing agents L, a dissolved form of magnesium hydride (MgH' 2 ) is produced. The preferred L's are quinuclidine (QC) or organomagnesium compounds; howeve…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew Eudesmanolides from Sphaeranthus indicusMohammed Saleh Shekhani, Pir Muazzam Shah, Khalid Mohammed Khan, and Atta-ur-RahmanCite this: J. Nat. Prod. 1991, 54, 3, 882–885Publication Date (Print):May 1, 1991Publication History Published online1 July 2004Published inissue 1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrochemistry of (octaethylporphinato)cobalt(II), (OEP)Co, under a carbon monoxide atmosphere. Electrogeneration and characterization of [(OEP)CoIII(CO)]+Y. Hu, B. C. Han, L. Y. Bao, X. H. Mu, and K. M. KadishCite this: Inorg. Chem. 1991, 30, 10, 2444–2446Publication Date…
Abstract Instrumented impact testing of linear low density polyethylene (LLDPE I) (ethylene and 1‐octene copolymer) was carried out using a Rheometrics Drop‐Weight Tester (RDT‐5000). A method of partial penetration at controlled impact energy was used and developed. The set impact speed was raised step by step in smal…
Abstract The measurement of parison swell is difficult because swell is a time‐dependent phenomenon and because, for a parison, two independent swell ratios must be determined. A new technique has been developed that makes use of a video camera focused on the end of the parison. Unlike previous techniques designed to…
Abstract MoO 3 thin films after irradiated with a UV light showed enhancement in electrochromism when compared to the non‐irradiated ones. It was found that the change in absorbance for the irradiated portion was as large as six times that of the non‐irradiated portion of a sample. This enhancement in electrochromism…