Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The diffusion coefficient, D, and the proportion of mobile molecules, p, is measured for a fluorescently labeled polyelectrolyte in a multilayer film using fluorescence recovery after photobleaching (FRAP). The film was composed of poly(L-lysine) (PLL) and hyaluronan (HA). The labeled polyelectrolyte (PLL(FITC)) was e…
In this article a simple and reproducible technique for the synthesis of a silver organosol is reported from a specific silver precursor, solid silver acetate. Molten hexadecylamine acts as a solvent for silver acetate and imparts stability to the evolved nanoparticles. The amine-capped organosol shows unique stabilit…
Spin-dependent phenomena in semiconductors may lead to devices with new or enhanced functionality, such as polarised solid-state light sources (spin light-emitting diodes), novel microprocessors and sensitive biological and chemical sensors. The realisation of robust semiconductor spin-device technology requires the a…
Spherical and wheel-shaped molybdenum oxide based nanosized clusters exhibit unprecedented materials properties, due to the large number of active sites/functionalities on their outer and innermost surfaces, especially with respect to specific interactions with their environment.
For the first time, hybrid materials with long-range order (lamellar and even 2D hexagonal) were obtained during hydrolysis–polycondensation of α,ω-bis(trimethoxysilyl)alkanes thanks to hydrophobic van-der-Waals type interactions using highly hydrophilic conditions, the nanostructure depending mainly on the alkylene c…
The mode of aggregation of amphiphilised porphyrin derivatives bearing a chiral functionality is strongly affected by solvent composition; this results in the tuning of the supramolecular chirality of the porphyrin aggregates.
The ruthenium(II)-supported heteropolyanions [HXW7O28Ru(dmso)3]6-(X=P, 1; As, 2) are composed of a Ru(dmso)3 group attached to an unprecedented heptatungstate fragment via two Ru-O-W bonds and one Ru-O-X bond, which represents a fundamentally novel mode of Ru-coordination to a polyoxoanion framework. Multinuclear 183W…
In this work the orientation of banana-shaped molecules in the magnetic field is investigated. A new and original hypothesis of the peculiar aggregation of banana-shaped molecules in the nematic phase in the presence of a magnetic field is here reported. Deuterium NMR measurements on two selectively deuterium labelled…
The synthesis of a cyclic peptide-Gd(III)DTPA molecule equipped with biotin is presented, yielding a well-defined multivalent MRI contrast agent after its coupling to avidin.
Self-interstitial atom (SIA) type dislocation loop is one of the possible candidates of the so-called matrix damage that causes hardening and embrittlement of blanket structural materials of fusion reactors and/or pressure vessel materials of light water reactors. We present in this paper molecular dynamics computer s…
Introducing surface roughness using a photoelectrochemical etching technique successfully controlled the reversible wettability of a surface. The hydrophilic conversion property is enhanced on the etched surface irradiated with UV light. This is plausible considering Wenzel's equation, that is, that the hydrophilic pr…
The thermal lens technique was carried out to experimentally determine the influence of the energy transfer upconversion (ETU) processes on fluorescence quantum efficiency (eta) in Nd3+-doped materials. The samples with high Nd3+ concentration present a considerable reduction in eta?with the increasing excitation powe…
Carbon nanotubes have interesting electronic, optical and mechanical properties that are potentially useful for diverse applications—from nanoscale electronic devices to super tough fibers, super capacitors and artificial muscles. However, carbon nanotubes are difficult to solubilize for processing into needed archite…
A corrosion protection coating for AA2024-T3 composed of a blend of camphorsulfonate-doped poly(aniline) (PANI) and poly(methylmethacrylate) (PMMA) is described. The open-circuit potential (OCP) for the bare and coated alloy in solutions is presented vs. time. Raman spectroscopy revealed the oxidation state of the PAN…
A Fresnel lens with electrically-tunable diffraction efficiency while possessing high image quality is demonstrated using a phase-separated composite film (PSCOF). The light scattering-free PSCOF is obtained by anisotropic phase separation between liquid crystal and polymer. Such a lens can be operated below 12 volts…
The sterically protected dithiadiazolyl radical (F3C)3C6H2CNSSN. (1) crystallises in two polymorphs: 1alpha, comprised of monomeric units and 1beta, containing a mixture of both pi*-pi* dimers and S = (1/2) monomers; whilst both polymorphs exhibit similar structure-directing motifs, the variation in packing leads to d…
Facile synthetic modulation of the pore shape and pore entrance of large pore cubic silica mesophases with fcc and bcc three-dimensional structures was achieved by applying post-synthesis treatment with sulfuric acid.
The vibrational spectra of crystals of bismuth borates Bi 24 B 2 O 39 , Bi 4 B 2 O 9 , BiBO 3 , and Bi 2 B 8 O 15 were obtained for the first time, and the spectra of Bi 3 B 5 O 12 and BiB 3 O 6 crystals measured in the range 30–1600 cm −1 at room temperature were refined. The lines observed were assigned to the corre…
Rodlike GaOOH particles and films were successfully prepared in a large scale from a simple aqueous gallium nitrate solution. First, a hydrothermal treatment of the solution at led to the formation of GaOOH rods, and their subsequent heat-treatments at promoted transformation into having the similar particle morpholog…
The effect on solid oxide fuel cell (SOFC) anode performance of replacing with a solid solution in Cu-ceria-yttria-stabilized zirconia (YSZ) composites was investigated. In both cases, the electrode composites were made by impregnation of porous YSZ with nitrate salts. Calcination of the to 1273 K, prior to the additi…