Materials Literature
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In contrast to the Pt(IV) derivatives of cisplatin, Pt(IV) derivatives of oxaliplatin do not show the expected correlation between the electrochemical reduction potentials and rates of reduction by ascorbate. This is probably due to the lower ability of the amine and carboxylato ligands to form a bridge with the reduc…
Vertically aligned InGaN/GaN nanorod light emitting diode (LED) arrays were created from planar LED structures using a new top-down fabrication technique consisting of a plasma etch followed by an anisotropic wet etch. The wet etch results in straight, smooth, well-faceted nanorods with controllable diameters and remo…
This study highlights the potential benefits of using terdentate over bidentate ligands in the construction of organometallic complexes as organic light-emitting diode (OLED) emitters offering better color purity, and explores in detail the molecular origins of the differences between the two. A pair of closely relate…
Solvent processable polyfluorene ionomers with pendant imidazolium groups were synthesized and characterized. The synthesized polymeric membranes are transparent, flexible, and mechanically strong and exhibit hydroxide ion conductivity above 10 –2 S/cm at room temperature. The membranes are soluble in polar aprotic so…
Five functional silanes--3-aminopropyltriethoxysilane (APTES), 3-aminopropyltrimethoxysilane (APTMS), N-(2-aminoethyl)-3-aminopropyltriethoxysilane (AEAPTES), N-(2-aminoethyl)-3-aminopropyltrimethoxysilane (AEAPTMS), and N-(6-aminohexyl)aminomethyltriethoxysilane (AHAMTES)--were assessed for the preparation of hydroly…
In this perspective we introduce the basic photophysics of the excited-state intramolecular proton transfer (ESIPT) chromophores, then the state-of-the-art development of the ESIPT chromophores and their applications in chemosensors, biological imaging and white-light emitting materials are summarized. Most of the app…
Thermal shock behavior of porous ceramic nozzles with various pore sizes for continuous casting process of steel was investigated in terms of physical properties and microstucture. Porous nozzle samples with a composition of Al 2 O
This article describes the formation of homogeneous nanosize (50–250 nm thick) Y2O3:Eu3+ coatings on glass surfaces, using water and water–alcohol solutions of yttrium and europium nitrates. The characteristic bands of macroscopic Y2O3:Eu3+ powders are observed in the absorption spectra of the resulting coatings. The…
The authors developed a method based on the concept of heterogeneous condensation on charged centres (ions), for the preparation of nanoparticles that allows the control synthesis of particles with sizes from 10 to 100 nm. The technique is used to fabricate thin films of silver nanoparticles. According to the scanning…
Fluorescence recovery protein (FRP), which is encoded by the slr1964 gene in Synechocystis PCC 6803, plays a key role in the orange carotenoid protein-related photoprotective mechanism in cyanobacteria. As the crystal structure of FRP may provide information about the biological functions and mechanism of action of th…
The CuO-CeO 2 /Al 2 O 3 catalysts for the selective oxidation of CO in hydrogen-containing mixtures were prepared by surface self-propagating thermal synthesis (SSTS) with the use of cerium nitrate Ce(NO 3 ) 3 , the ammonia complex of copper acetate [Cu(NH 3 ) 4 ](CH 3 COO) 2 , and citric acid C 6 H 8 O 7 as a fuel ad…
Methods and results of research on the focusing properties of planar boundaries of some metamaterials modeled by a negative electromagnetic medium (i.e., one with both a negative permittivity and a negative permeability) are presented. The properties of flat focusing lenses made of isotropic, anisotropic, or chiral ne…
Pipeline steels absorb different amounts of hydrogen during transportation of sour oil and gas. Since hydrogen-related damages such as hydrogen-induced cracking are strongly affected by hydrogen permeation behavior of steels, the purpose of this study determined to investigate hydrogen permeation behavior in API X-70…
Cyclisch und flexibel: Ein einfaches molekulares Design wird vorgeschlagen, mit dem sich die Molekülpackung und Festkörpereigenschaften π-konjugierter Gerüste kontrollieren lassen. Feine Unterschiede in der Länge der flexiblen Alkylenbrücke cyclischer Terthiophendimere führen zu charakteristischen Molekülpackungen mit…
For different areas of combinatorial materials science, it is desirable to have multiple materials libraries: especially for irreversible high-throughput studies, like, for example, corrosion resistance testing in different media or annealing of complete materials libraries at different temperatures. Therefore a new c…
We examine nonequilibrium features of collapse behavior in model polymers with competing crystallization and glass transitions using extensive molecular dynamics simulations. By comparing to “colloidal” systems with no covalent bonds but the same non-bonded interactions, we find three principal results: (i) Tangent-sp…
In this study, single-crystalline γ-Al2O3 nanowires were synthesized by simple evaporation of Al–Si alloy source powder at 1070 °C under different working pressures. The structures and growth mechanisms of the nanowires were examined. Under a low working pressure of 0.5 torr, uniform nanowires with a catalyst particle…
Während des anaeroben Wachstums des Bakterienstamms HxN1 entstehen nahezu gleiche Mengen an (2R,1′R)- und (2S,1′R)-(1-Methylpentyl)succinat, die durch radikalische Addition des Kohlenwasserstoffs an Fumarat gebildet werden (siehe Schema). Der hochselektive Angriff auf das proS-Wasserstoffatom an C2 des n-Hexans geht m…
Fine-grained BaTiO3-based nonreducible ceramics were obtained by a conventional mixing method and the dielectric and electrical properties were characterized. The average grain size was less than 200 nm. The materials provided a dielectric constant of 1300 and satisfied the Electronic Industries Association (EIA) X8R…
This work presents a strategy to obtain plasmonic plastics by conventional large scale polymer processing methods using metal nanoparticles (Au and Ag) supported on sepiolite fibers acting as carriers. Two conventional polymers, polyethylene and polystyrene, have been used as matrices, and composites were prepared up…