Materials Literature
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Cathodic behavior of doped with La was investigated in this study for an intermediate temperature solid oxide fuel cell (ITFC). Electrical conductivity of increased monotonically with an increasing amount of La doped for the Ba site at 1073 K Cathodic overpotential at 1073 K decreased with increasing La content and at…
In this paper we have investigated the NO2 gas-sensing properties of LB film assemblies of 5,15-bis(4-aminophenyl)-10,20-bis[3,4-bis(2-ethylhexyloxy)phenyl]-21H,23H-porphine (CAH4). The optical absorbance spectrum of these films is dramatically affected when exposed to low concentrations of NO2 gas. LB films of CAH4 w…
Porous iron whose long cylindrical pores are aligned in one direction has been fabricated by unidirectional solidification of the melt in a pressurized mixture gas of nitrogen and argon. Nitrogen dissolved in the molten iron is rejected at the solid-liquid interface during the solidification due to the solubility diff…
In plane parallel arrangement and enhancement of NLO-activity are observed upon coordination of heteroditopic dipoles containing a phosphole ring on square-planar d8-palladium centre.
Novel ternary diamond-like phases of the B–C–N system were synthesized at pressures up to 30 GPa and temperatures up to 3500 K by static and dynamic compression of graphite-like BN–C solid solutions. The structure and properties of these new phases were studied using analytical transmission electron microscopy (ATEM),…
The photochromic and solvatochromic behaviour of 17 variously substituted spiroindoline naphthoxazines has been investigated in cyclohexane, toluene, acetonitrile and methanol in fluid solution. Specific parameters such as the wavelengths and the molar absorption coefficients of the closed spiro- and open merocyanine…
NH3 was used as molecular probe to monitor the nature of both Brønsted and Lewis acid sites as well as co-ordination sphere of Ti(IV) centres in Ti-grafted MCM-41 by means of FTIR, DR UV-Vis-NIR and photoluminescence spectroscopies. A bare MCM-41 sample was also studied for comparison. Diffuse reflectance UV–Vis–NIR s…
An endothelial cell (EC) smooth muscle cell (SMC) co-culture model of the arterial wall was used to study the effect of fluid shear stress on EC behavior. This model, in addition to being a more realistic tissue analogue, is a valuable research tool for studying the effects of mechanical stimulation upon the behavior…
A combination of metal-catalyzed cross-coupling and metal-templated cycloaddition reactions have been utilized to establish multiporphyrin compounds 5-(5'-[15',15' '-bis(10' ',20' '-di[4-(3-methoxy-3-methylbutoxy)phenyl]porphinato)zinc(II)]ethyne)-6-[(5' "-10' ",20' "-di[4-(3-methoxy-3-methylbutoxy)phenyl]porphinato)z…
Random and ordered macropore formation in p-type silicon have been studied experimentally. We found that the density of macropores in a random macropore nucleation regime is linearly depending on the samples doping concentration. Macropore etching rate depends linearly on the current density up to the critical current…
Structural and acid–base properties of Mg/Al and Mg/Ga layered double hydroxides (LDH's) obtained by microwave irradiation of the co-precipitated gels have been investigated and compared to those of samples conventionally aged by prolonged hydrothermal treatment of the gels. Similar crystallinities and chemical compos…
A database comprising all ligand-binding sites of known structure aligned with all related protein sequences and structures is described. Currently, the database contains approximately 50000 ligand-binding sites for small molecules found in the Protein Data Bank (PDB). The structure-structure alignments are obtained b…
The acoustic vibrational modes of Au nanorods with aspect ratios between 2 and 5 have been investigated by time-resolved laser spectroscopy. The results show that laser excitation launches a coherent vibrational motion that has a period that depends linearly on the length of the rod. Due to polydispersity in the sampl…
The contribution of solvent-exposed charged residues to protein stability was evaluated using ubiquitin as a model protein. We combined site-directed mutagenesis and specific chemical modifications to first replace all Arg residues with Lys, followed by carbomylation of Lys-amino groups. Under the conditions in which…
ABSTRACT: Soy protein films were thermally laminated with either single or double coats of corn‐zein. Microstructural characterization of the surfaces and cross‐sections reveals a ductile protein matrix of the soy component, but a brittle layered structure for the corn‐zein component. The hydrophobic nature of the cor…
Nematic liquid-crystalline (LC) physical gels suitable for light scattering electrooptical displays have been prepared from a nematic liquid crystal and a low molecular weight gelator containing an oligo(L-isoleucine) moiety. The number of amino acid moieties of the gelators has a great effect on the gelation ability…
Dendrimers are potentially useful for encapsulation of core moieties. Although the conformation that a dendrimer assumes around a core moiety cannot be directly determined, the effect of increasing dendrimer size on the photophysical and electrochemical properties of the core has been documented. Specifically, studies…
A very easy way for improving the purity of carbon nanotubes using a domestic multimode microwave oven is reported, in which selective burning of metal particles helps remove most of the iron content.
Formation of Anodic Films on Magnesium Alloys in an Alkaline Phosphate Electrolyte , Bonilla, F. A., Berkani, A., Liu, Y., Skeldon, P., Thompson, G. E., Habazaki, H., Shimizu, K., John, C., Stevens, K.
To avoid the formation of hollow particles during spray pyrolysis, a spray hydrolysis reaction method (SHRM) was studied. Unlike the conventional spray pyrolysis that uses metal salt as a precursor and dry air as a carrier gas, the SHRM introduces a mixture of metal salt and dimethyl oxalate (DMO) as precursors and a…