Materials Literature
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Here novel mesoporous silica film nanocomposite with a hexagonal structure is successfully synthesized by using phosphorescent columnar assembly of a trinuclear gold(I) pyrazolate complex bearing amphiphilic side chains [Au3Pz3], formed via a weak AuI-AuI metallophilic interaction, as a functional template in the sol-…
The present study has been conducted in the framework of the channel-cut crystal design for the Kookaburra ultra-small-angle neutron scattering (USANS) instrument to be installed at the OPAL reactor of ANSTO. This facility is based on the classical Bonse-Hart method that uses two multiple-reflection crystal systems. T…
Multilayered polyelectrolyte membrane was prepared by layer by layer (LbL) method by alternating deposition of poly (diallyl dimethyl ammonium chloride) (PDDA) and an anionic polyelectrolyte chosen from graphene oxide (GO), sulfonated GO (sGO), or sulfonated poly (phenylene oxide) (sPPO). LbL deposited bilayers of {PD…
This study describes the ability to use the melt‐level control for stabilization of the crystallization rate during NaI crystal growth by the VGF technique with a skull layer. It is shown that a conventional linear decrease of the heater temperature leads to a nonuniform crystallization rate and deterioration of cryst…
Atomic oxygen, which is the most predominant species in low Earth orbit, is highly reactive and can break chemical bonds on the surface of a wide variety of materials leading to volatilization or surface oxidation which can result in failure of spacecraft materials and components. This presentation will give an overvi…
Long pillar- and tip-shaped nanostructures were formed on diamond-like carbon (DLC) surfaces by RF O2plasma etching after deposition of a small amount of metal as a micromask by the dc magnetron sputtering method. Ni, Pt, Fe, Au, and Cu were examined as metal micromasks for deposition on the DLC surface. During the in…
Samaria ( Sm 2 O 3 ) thin films with a thickness of 180 nm were deposited on polycrystalline CeO 2 substrates by pulsed layer deposition to study phase formation and bulk cation interdiffusion in the Ce 1− x Sm x O 2− x /2 system after annealing at temperatures between 987°C and 1266°C. Transmission electron microscop…
A design strategy for refractive lenses is presented that offers both high uniformity illumination and good directivity. Its main feature is to divide the incident optical flux and assign each portion to a calculated area based on the illuminance required. This scheme uses simple photometry and geometrical optics with…
An equilibrium molecular dynamics simulation is applied to investigate the thermal properties of a single-walled carbon nanotube/poly(phenylenesulfone) as nanocomposite material. Cohesive energy density and the Hildebrand solubility parameter of pure poly(phenylenesulfone) and nanocomposite are calculated to compare t…
In order to control the process of oligonucleotide immobilization on the surface of citrate-stabilized gold nanoparticles, an experimental approach for evaluation of the amount of immobilized oligonucleotides was proposed. This approach is based on using thiolated oligonucleotides with covalently attached fluorophore…
In this paper studies of neutron diffraction properties of the double crystal (+n,-m) setting containing Si(220) and Si(311) bent perfect crystals (BPC) in symmetric and fully asymmetric diffraction (FAD) geometry with the output beam expansion (OBE), respectively, are presented. Namely, our attention was focused on t…
The structural evolution and properties of 0.3 Pb ( In 1/2 Nb 1/2 ) O 3 –0.38 Pb ( Mg 1/3 Nb 2/3 ) O 3 –0.32 PbTiO 3 (0.3 PIN ‐0.38 PMN ‐0.32 PT ) ferroelectric ceramics with different sintering times have been investigated. The content of the tetragonal phase is increased in samples sintered for more than 6 h, despit…
Meta‐surfaces as artificial magnetic conductors or high impedance surfaces to control the electromagnetic fields excited by a microstrip patch resonator are investigated for planar and non‐planar structures. In the planar structure, two types of meta‐surfaces are used as electromagnetic transducers to transform the ca…
We report the results of 121,123Sb-nuclear quadrupole resonance (NQR) measurements on the fully filled skutterudite YbFe4Sb12 synthesized under high pressure, and compare them with those for an Yb-deficient sample synthesized under ambient pressure in order to elucidate the intrinsic behavior and the effects of the Yb…
The results of transmitted wavefront distortion correction are presented for a YAG:Nd3+ active element with a diameter 45 mm. Halftone mask and proximity printing were used for fabrication of the freeform corrector. Experimental results show a three-fold decrease of the wavefront distortion. Because the corrector pres…
Recently, an interface between the Monte Carlo code MCNPX and the neutron ray-tracing code MCNPX was developed [1, 2]. Based on the expected neutronic performance and guide geometries relevant for the ESS, the combined MCNPX-McStas code is used to calculate dose rates along neutron beam guides. The generation and mode…
LaOCl:Yb3+, Er3+ nanobelts were prepared by electrospinning combined with a double-crucible chlorination technique using NH4Cl as chlorinating agent. X-ray powder diffraction analysis indicated that LaOCl:Yb3+, Er3+ nanobelts were tetragonal with space group P4/nmm. Scanning electron microscope analysis and histograms…
Nanocomposite films consisting of gold nanoparticles embedded in an yttria-stabilized zirconia matrix (Au-YSZ) have been synthesized with different gold loadings by reactive magnetron sputtering followed by ex situ annealing in air or laser interference patterning (LIP) treatment. It is shown that the electrical condu…
Introduction Traditionally tissue engineering entails the seeding and culturing of differentiated somatic cells onto biodegradable scaffolds, with subsequent implantation of the cell–scaffold constructs into the defective or damaged sites to regenerate tissues [1]. In this approach, the scaffold acts as a three-dimens…
An authoritative and practical guide to the art and science of formulating drugs.With thoroughly revised and expanded content, this Second Edition six-volume set compiles volumes from FDA New Drug Applications, patent applications, and other sources of generic and proprietary formulations to cover the broad spectrum o…