Materials Literature
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Hybrid inorganic/organic composite materials composed of gold nanoparticles of varying size (1.5 and 6.8 nm) and polyhedral oligomeric silsesquioxane (POSS) units were created using electrostatic self-assembly. Carboxylic acid-functionalized mixed monolayer protected gold clusters (MMPCs) were mixed with trimethyl qua…
Microfabrication methods have been used to construct crevice formers of rigorously controlled gap and length. These have been used to study the IR-controlled crevice corrosion of Ni200 in 0.5 M to determine the effect of crevice gap ( G ) on the position of the accelerated attack within the crevice. The experimental r…
The trinuclear complexes Re2Ln (Ln = Nd, Yb or Er) contain two Re(I) tricarbonyl units linked to a DTPA binding site via 2,2'-bipyridyl ligands; Ln(III)-centred emission is sensitised by the Re(I) MLCT excited states.
Single crystal X-ray diffraction is the technique of choice for studying the interactions of small organic molecules with proteins by determining their three-dimensional structures; however the requirement for highly purified protein and lack of process automation have traditionally limited its use in this field. Desp…
A high-density array of vertically aligned ZnGa(2)O(4) nanowires has been synthesized on Si substrates via CVD of ZnO-Ga at 1000 degrees C consisting of a single-crystalline cubic spinel structure grown in a [111] direction and exhibiting strong photoluminescence and cathodoluminescence in the blue wavelength region.
The aim of the present work was the design of novel nanoparticle compositions based on poly(lactic acid/glycolic acid) (PLGA): poloxamer and PLGA: poloxamine blend matrices. For this purpose, we have applied a modified solvent diffusion technique that allows the preparation of the nanoparticles without the use of high…
Recent interest in fuel cell-gas turbine hybrid applications for the aerospace industry has led to the need for accurate computer simulation models to aid in system design and performance evaluation. To meet his requirement, solid oxide fuel cell (SOFC) and fuel processor models have been developed and incorporated in…
Fluorination was performed for open- and closed-end single-walled carbon nanotubes (SWNTs) by direct reaction of SWNTs with elemental fluorine gas. Structural changes of SWNTs by fluorination were investigated by XRD and Raman measurements. The fluorination mechanism is discussed.
Mesostructured binary Ni–Co alloys with various compositions are prepared for the first time by the electroless deposition of metal salts (nickel and cobalt) dissolved in aqueous domains of the lyotropic liquid crystalline phases of a non-ionic surfactant (Brij 56) at high concentrations. Mesostructured alloys with va…
The preferential orientation of carbon nanotubes (CNTs) on a substrate using a dip-coating approach is described. The extraction of a steel fiber from a dispersion of CNTs provides the necessary forces required for preferential orientation of the CNTs on the fiber surface. We study the effect of the orientation of the…
This paper investigates the process of human psychological perceptions of clothing- related sensations and comfort to develop an intellectual understanding of and method ology for predicting clothing comfort performance from fabric physical properties. Var ious hybrid models are developed using different modeling tech…
While the field of tissue engineering is a burgeoning one, progress with fat engineering has lagged, due in large part to problems associated with nurturing and sustaining this unique tissue in vivo. In a pilot study using an experimental rat model, we induced liponeogenesis with a combination of Matrigel and basic fi…
Ytterbium and neodymium have been shown to exhibit sensitised emission following excitation of pyrene chromophores. Sensitised emission is demonstrated in self-assembled complexes and in azamacrocycle derivatives bearing pendent pyrene groups. Energy transfer in these systems is dependent on the nature of the link bet…
A new sandwich-tpype dilutetium tetraphthalocyanine 4 has been synthesized by the reaction of dimeric lutetium(III) phthalocyanine 3 with two equiv. of dilithium octakishexylthiophthalocyanine in amyl alcohol. Compound 3 was prepared from 4',5',4",5"-tetraiminoisoindoline(1,4,7,10-tetrathia-12-crown-4) 1, 4,5-bis(hexy…
Large-scale long (NH4)0.5V2O5 nanowires have been synthesized by rational hydrothermal treatment of ammonium metavanadate at 170 °C. Scanning electron microscope and transmission electron microscope analyses show that the nanowires have diameters of about 20–80 nm, and lengths up to 0.5 mm. Some self-assembled nanobel…
Aluminosilicate mesostructures (Si/Al = 1.6–49) with wormhole framework structures were assembled from protozeolitic nanoclusters (zeolite seeds) that normally nucleate the crystallization of faujasite (FAU), zeolite ZSM-5 (MFI) and zeolite Beta (BEA). The cationic surfactant cetyltrimethylammonium, the electrically n…
Three-dimensional (3D) nanostructures on a glass capillary have a number of useful applications such as manipulators, actuators, and sensors in the various microstructures. We observed a phenomenon that two diamondlike-carbon pillars on a tip of glass capillary fabricated by 30 keV Ga+ focused-ion-beam-chemical vapor…
We investigated the dynamic behavior of 1-3 type magnetostrictive particulate composites as a function of both bias field (5-140 kA/m) and frequency (1-100 kHz). The composites consist of approximately 0.5 volume-fraction Terfenol-D particles embedded and magnetically aligned in a passive epoxy matrix. The measured pr…
A mixed surfactant approach has been successfully employed in an aerosol-based synthesis of spherical silica particles exhibiting a new core-shell structure where the shell and the core exhibit different ordered mesoporosity and pore sizes.
Nephrogenic fibrosing dermopathy (NFD) is a rare fibrosing skin disease of unknown etiology occurring in patients with terminal renal disease. It was first described in the year 2000. The histology of NFD shows an increased number of dendritic cells, fibroblasts and thickened collagen fibers resembling scleromyxedema.…