Materials Literature
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The synthesis and structure of a novel decanuclear copper(II) cage is reported. The assembly of the cage is facilitated by the cumulative coordinative interaction of tert-butyl phosphonate, 2-pyridylpyrazole and hydroxide ligands with copper(II) ions. Magnetic studies of this decanuclear copper(II) cage indicate compl…
Well-defined macroporous ceramics consisting of TiO2 and ZrO2 have been fabricated by two methods. One is via a template-assisted colloidal processing technique and the other is via a hetero-coagulation of template/ceramic particle colloidal processing. The former technique is as follows. Close-packed polymer spheres…
In a previous study, we found that different collagen gels produced using collagen fibrils extracted from 1-, 4- and 8-month-old rat tails essentially influenced the morphogenesis of epithelial cells. More importantly, the youngest collagen gel induces the highest level of cell apoptosis. The objective of this study w…
Alloying process and shape memory properties of a Ti/Ni multilayer thin film fabricated by a dual d.c. magnetron sputter–deposition method were investigated, and compared with those of a Ti—Ni amorphous thin film fabricated by an alloy target sputter–deposition method. The multilayer thin film was made by depositing T…
A simple method for the preparation of highly fluorescent and stable, water-soluble CdSe-ZnS quantum dots is reported using calix[4]arene carboxylic acids as surface coating agents; the coating of the surface with the calixarene and the conjugation of antibodies to the quantum dots are confirmed by fluorescence correl…
A novel method of ceramic-to-metal joining, referred to as reactive air brazing, was investigated as a potential method of sealing planar solid oxide fuel cells (SOFCs). In the present study, yttria stabilized zirconia (YSZ) and Fecralloy were selected as subject materials to simulate the cell-to-frame seal in planar…
A novel dinuclear complex containing the photo-sensitizing Ru unit and a Pd center is effective toward selective catalytic dimerization of alpha-methylstyrene leading to 2,4-diphenyl-4-methyl-1-pentene under visible-light irradiated conditions.
Biopolymer chitosan manifests properties that open up a wide span of applications in many sectors, mainly medicine. Examples are presented of well-known uses of chitosan in medical dressings, including haemostatic preparations. On the basis of this background, a survey is made of the research and results achieved in t…
Luminescence centres formation due to the doped isoelectron impurities (II) and antisite defects in the garnets of A3B5O12 (A=Y, Lu, Gd; B=Al, Ga) formula is considered. Substitution of the Y- or Lu-cations by La3+ and Sc3+ II in dodecahedral {c}-sites and of the Al-cations by Y3+, Lu3+, Sc3+ II in octahedral (a)-site…
An organic anion exchanged hydrotalcite-like inhibitor was synthesized using an approach similar to that described previously by Williams and McMurray and characterized as to its ability to inhibit the oxygen reduction reaction on a Cu rotating disk electrode. The results suggest that this new inhibiting pigment would…
A mathematical model describing the multi-component species transport inside the porous solid oxide fuel cell (SOFC) anode has been developed. The model includes the water–gas shift reaction in the anode electrode (backing) layer and the spatially resolved electrochemical reaction in the reaction zone layer. The modif…
A method to combine measurements of the structure functions performed by several experiments in a common kinematic domain is presented. This method generalises the standard averaging procedure by taking into account point‐to‐point correlations which are introduced by the systematic uncertainties of the measurements. T…
Perfluorinated sulfonic acids have been immobilised into mesoporous silica frameworks by a one-step process, representing the first example of the successful incorporation of charged silanes using this route, and have been shown to be excellent catalysts for Brønsted acid catalysed transformations.
Highly ordered periodic mesoporous organosilica (PMO) materials with various mesostructures, including lamellar, bicontinuous cubic Ia3d, 2D hexagonal (P6mm), 3D hexagonal (P63/mmc) and cubic Pm3n, have been synthesized using Gemini surfactants with general formulas of [CnH2n+1N(CH3)2(CH2)sN (CH3)2CnH2n+1]Br2 (n = 6–1…
Attenuated total reflection Fourier transform infrared spectroscopy (FTIR) has been used to study cross-linking in hard gelatin capsules induced by exposure to formaldehyde, acetaldehyde, and propionaldehyde. These aldehydes are known to cause cross-linking between the amino acid chains of gelatin. Using FTIR spectros…
Monodispersed Ag2Se nanocubes and faceted nanocrystals have been synthesized by hexadecylamine (HDA) induced thermolysis of [(PPh3)3Ag2(SeC{O}Ph)2] in a mixture of TOP (tri-n-octyl phosphine) and HDA in the temperature range 95-180 degrees C.
The structures of a series of hydrated complex chlorides [Fe(btp)2]Cl2·6H2O, [M(bpp)2]Cl2·6.5H2O (M = Fe, Ru) and [Ru(terpy)2]Cl2·6H2O are described (btp = 2,6-bis(1,2,4-triazol-3-yl)pyridine; bpp = 2,6-bis(pyrazol-3-yl)pyridine; terpy = 2,2′∶6′,2″-terpyridine). The ligands are all of the terimine type. [Fe(btp)2]Cl2·…
This paper describes the synthesis of 4,4′-[(triisopropoxysilyl)propyloxy]azobenzene and the preparation of the ordered hybrid material containing the bridged azobenzene moieties within the framework by using the direct liquid crystal templating approach. We show that a sizable fraction of the azobenzene groups is rev…
Surface enhanced Raman scattering spectra of guanine, guanosine and 2'-deoxyguanosine adsorbed on gold colloidal nanoparticles were obtained. From the striking similarity of the SERS spectra of these compounds, it can be evidenced that guanosine and 2'-deoxyguanosine adsorb on gold nanoparticles through the guanine mo…
Thermoelectric properties of non-doped amorphous zinc oxide (ZnO) thin film were studied at between room temperature and around 673 K, where the samples were prepared by pulsed laser deposition at room temperature. The results of X-ray diffraction, transmittance spectroscopy and electron microscope observation indicat…