Materials Literature
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The formation of poly(3-hydroxyalkanoates) (PHAs) in Pseudomonas putida KT2442 from various carbon sources was studied by 13C nuclear magnetic resonance spectroscopy, gas chromatography, and gas chromatography-mass spectroscopy. By using [1-13C]decanoate, the relation between beta-oxidation and PHA formation was confi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Wetting of Monolayer Films Exposing Ionizable Acids and BasesT. Randall Lee, Robert I. Carey, Hans A. Biebuyck, and George M. WhitesidesCite this: Langmuir 1994, 10, 3, 741–749Publication Date (Print):March 1, 1994Publication History Published online1 May 2002Published i…
The biocompatibility and tissue regenerating capacity of four crosslinked dermal sheep collagens (DSC) was studied. In vitro, the four DSC versions were found to be noncytotoxic or very low in cytotoxicity. After subcutaneous implantation in rats, hexamethylenediisocyanate-crosslinked DSC (HDSC) seldom induced an incr…
The photophysical properties of benzoporphyrin derivative monoacid ring A (BPD-MA), a second-generation photosensitizer currently in phase II clinical trials, were investigated in homogeneous solution. Absorption, fluorescence, triplet-state, singlet oxygen (O2 (1 delta g)) sensitization studies and photobleaching exp…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUltrasonic Induced Dehalogenation and Oxidation of 2-, 3-, and 4-Chlorophenol in Air-Equilibrated Aqueous Media. Similarities with Irradiated Semiconductor ParticulatesNick Serpone, Rita Terzian, Hisiao Hidaka, and Ezio PelizzettiCite this: J. Phys. Chem. 1994, 98, 10, 2634–…
Abstract Nylon‐6–clay hybrid (NCH) is a molecular composite of Nylon‐6 and uniformly dispersed silicate monolayers of montmorillonite. In this study, orientation of montmorillonite and Nylon‐6 crystallites in the NCH film was measured by x‐ray diffraction and transmission electron micrography (TEM), which revealed tha…
A high-resolution solution structure of the GDP form of a truncated version of the ras p21 protein (residues 1-166) has been determined using NMR spectroscopy. Ras p21 is the product of the human ras protooncogene and a member of a ubiquitous eukaryotic gene family which is highly conserved in evolution. A virtually c…
The admixtures have lost a large part of their character of mysterious products with which spectacular transformations of concretes are achieved. On the other hand, they fave effectively contributed (when used properly) to the development of concretes and have become another one of their components to such an extent t…
11 sandstone samples from the cathedrals of Salamanca were analysed granulometrically. The study was to establish whether there is a direct connection between the particle size of such stone and the surface deterioration of some of the ashlars in the facades. This was carried out with the help of diffraction spectrome…
This article studies the effects produced by the lime filler on the Portugal cement used with additions in the production of mortars. The starting point is a Portland cement to which different ratios of lime filler, ranging from 0-50%, are added. The next step consists of preparing mortar specimens using standardized…