Materials Literature
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Genome data as well as biochemical studies have indicated that--as a peculiarity within hyperthermophilic Archaea--Thermoproteus tenax uses three different pathways for glucose metabolism, a variant of the reversible EMP (Embden-Meyerhof-Parnas) pathway and two different modifications of the ED (Entner-Doudoroff) path…
In this letter we report a large experimental effort exploring the dynamics of poly(vinyl ethylene) on length scales covering Rouse dynamics and below. The results establish the simultaneous existence of a generic sublinear diffusion regime which underlies the α-process in addition to the Rouse process. Both regimes a…
The aqueous electropolymerisation process can be used for the production of primer coatings on metals. Recent studies have shown that such types of coatings are highly corrosion resistant. Further it is also shown that electropolymerisation coating with pigment is feasible. Besides, the use of polymers such as polyani…
Abstract Electrically and thermally conductive resins can be produced by adding conductive fillers to insulating polymers. Mechanical properties such as tensile modulus, ultimate tensile strength, strain at ultimate tensile strength, and notched Izod impact strength are also important and cannot be ignored. This resea…
Abstract An immiscible polymer blend where the dispersed phase is fibrillar was prepared by in situ crosslinking of the minor phase. A model polystyrene/epoxy‐amine blend was selected on the basis of rheological (achievement of the fibrillar structure) and reactivity (fast crosslinking) criteria. The system was a poly…
Heat-treatment-induced conversion of nanodiamond to nanographite is investigated. Graphitization starts at the surface region around a heat-treatment temperature of 900°C, then it proceeds inward in the particle, and finally it is completed around 1600°C, where nanographite particles form a polyhedron with a hollow in…
OBJECTIVE: Colloidal silver preparations are marketed on the internet as omnipotent antimicrobial agents, but scientific support for these claims is lacking. This study reports the results of in vitro tests of colloidal silver's antimicrobial activity against several pathogenic or non-pathogenic microorganisms. METHOD…
Abstract Tetrakis(diethyl phosphonate), Tetrakis(ethyl phenylphosphinate)‐, and Tetrakis(diphenylphosphine oxide)‐Substituted Phthalocyanines The title compounds 7, 9 , and 11 are obtained by tetramerization of diethyl (3,4‐dicyanophenyl)phosphonate ( 5 ), ethyl (3,4‐dicyanophenyl)phenylphosphinate ( 8 ), and 4‐(diphe…
Abstract We investigate the self‐organization of PSS in brushes and polyelectrolyte multilayers with X‐ray, neutron and optical reflectivity. The electrostatic force dominates brush phases and adsorption behavior, additionally we find evidence of a strong hydrophobic force: (ι) within amphiphilic diblock copolymer mon…
The metastable crystal structure of strontium‐ and magnesium‐substituted LaGaO 3 (LSGM) was studied at room and intermediate temperatures using powder X‐ray diffractometry and Rietveld refinement analysis. With increased strontium and magnesium content, phase transitions were found to occur from orthorhombic (space gr…
The axial neutron emission and gamma ray source distribution were measured for LWR high burn-up UO2 and MOX spent fuel rods. The gamma rays of 134Cs, 137Cs and 106Ru were measured on the fuel rods, and consequently compared with the results of the ORIGEN2/82 calculation, in which both the original library and ORLIBJ32…
Abstract X-ray basal reflections of several HDTMA-vermiculites show that when these contain co-adsorbed molecules of HDTMA-Br, their interlayer spacings are ∼29.5 Å. After HDTMA-Br has been leached out with ethanol, spacings decrease to ∼26 Å, but when exposed to toluene vapor the spacings increase to ∼36 Å, and to ∼4…
We report the formation of aggregated thionine molecules encapsulated within an Al-containing mesoporous molecular sieve material (specifically, AlMCM-48) that possesses a cubic pore structure. XRD, UV−vis absorption, fluorescence, and Raman measurements were used, where appropriate, as spectroscopic tools to characte…
Collagen from different sources was isolated and designed as scaffolds to act as a three-dimensional substrate for culturing human skin fibroblasts, which can be used as dermal substitutes. The thermodynamic behavior of the scaffolds developed was analyzed through Differential Scanning Calorimetric (DSC) and Thermogra…
Abstract Summary: Styrene‐butyl acrylate copolymer (St‐BA)/graphite oxide (GO) nanocomposites and St‐BA/GO/MPP [melamine poly(metaphosphate)] composites were prepared via an intercalation process by the ball‐milling method and characterized by X‐ray diffraction (XRD), transmission electron microscopy (TEM), and field…
The amino acid sequences of gamma-crystallin, Haloalkane Dehalogenase, Phthalate Dioxygenase, Porphobilinogen Deaminase and Myosin Regulatory Domain c-chain were analyzed for their information content. Sites of increased degree of information coordination between residues (IDIC-sites) were identified, and their organi…
We review distinct photonic/electronic properties originating from built‐in nanostructures in transparent oxide‐based materials, emphasizing potential of nanostructures hidden in crystal structure. Materials focused on are oxychalcogenides LaCuOCh (Ch = chalcogen ion) and homologous oxides InGaO 3 (ZnO) m (m = integer…
Abstract Summary: In a low‐molecular‐weight polyethylene‐ block ‐poly(ethylene oxide) (PE‐ b ‐PEO) diblock copolymer, two pathway‐dependent melting processes were observed: Upon slow heating, the PE lamellar crystals melted at ≈97 °C into a disordered state. However, when the temperature rapidly jumped to above the me…
A new type of ferroelectric gate field effect transistor (FET) using ferroelectric-insulator interface conduction has been proposed. Drain current flows along the interface between the ferroelectric and insulator layers and needs no semiconductor. The FET has been fabricated by forming drain and source electrodes on a…
The new processes of current flow through electrodes at carbon nanotube (CNT)-electrode junctions were carried out to change the contact resistance of CNT conductors and the tunnel barriers of CNT quantum dots. When the current flow process was applied to CNT conductors with the Au/Ti electrodes deposited on multiwall…