Materials Literature
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In order to propose a ferromagnet exhibiting highly spin-polarized transport, we theoretically analyzed the spin polarization ratio of the conductivity of the bulk ${\mathrm{Fe}}_{4}\mathrm{N}$ with a perovskite-type structure, in which N is located at the body center position of the fcc-Fe. The spin polarization rati…
This Account presents recent advances in understanding how and why dilute solutions/sols of low-molecular-mass organic gelators (LMOGs) undergo microscopic phase separation to form self-assembled fibrillar networks in molecular organogels. Concepts are illustrated structurally at the subnanometer (molecular) to severa…
Abstract Previously, bi‐axial self‐reinforcement of high‐density polyethylene (HDPE) was achieved through a uni‐axial shear stress field introduced by dynamic packing injection molding technology. Here, further improvement of tensile strength along the flow direction (MD) was achieved by blending a small amount of hig…
Abstract The backscattering coefficient of low–medium energy electron beams (from 250 to 10 000 eV) impinging on C/Al double layered thin films was investigated by a Monte Carlo simulation. The aim of the research was to study the behaviour of the backscattering coefficient as a function of the beam primary energy and…
X-ray crystallography has revealed two similar alpha/beta domains of the aspartate racemase from the hyperthermophilic archaeon, Pyrococcus horikoshii OT3. The active site is located in the cleft between the two domains where two cysteine residues face each other. This arrangement allows the substrate to enter the cle…
Within an Onsager-like density functional theory we explore the thermodynamic and structural properties of an isotropic and nematic fluid of hard needle-like colloids in contact with a hard substrate coated with a soft short-ranged attractive or repulsive layer. As a function of the range and the strength of the soft…
We investigate the effect of annealing on the Ge nanocrystal formation in multilayered germanosilicate–oxide films grown on Si substrates by plasma enhanced chemical vapour deposition (PECVD). The multilayered samples were annealed at temperatures ranging from 750 to 900 °C for 5 min under nitrogen atmosphere. The ons…
Filling effect of silica on dielectric and mechanical properties of ethylene propylene diene/acrylonitrile butadiene rubber EPDM/NBR blends with different compositions was studied. To solve the problem of phase separation polyvinyl chloride (PVC) with concentration 10 phr was added. The dielectric data for the investi…
Immanuel Kant describes his approach as a ‘Copernican Revolution’ in philosophy. Copernicus put forward the theory that the earth moves round the sun rather than vice versa. Kant’s revolutionary idea is that the world that we inhabit and perceive depends on qualities of the perceiver’s mind, rather than simply existin…
A series of water-resistant cellulose films was prepared by coating castor oil based polyurethane (PU)/benzyl starch (BS) semi-interpenetrating polymer networks (semi-IPN). All of the coated films, with a very thin coating layer of about 0.4 μm, exhibited much better optical transmittance, water resistance, and mechan…
The pore shape and size of MCM-41 were studied analytically by comparing the observed powder X-ray diffraction intensities with that derived from the MCM-41 crystal structure models, with two different pore shapes, a hexagon and a circle. The powder diffraction patterns from the as-synthesized and the calcined MCM-41…
This paper reports the results of an investigation on the effect of shear deformations on wave propagation in carbon nanotubes embedded in an elastic matrix. A multi-walled carbon nanotube is considered as a multiple shell coupled together through van der Waals forces between two adjacent tubes. The surrounding matrix…
Fully coordinated ultrathin silica nanotubes are derived by performing first-principles calculations. The nanotubes are well ordered and are of three magic configurations, quite different from the conventional amorphous thick silica nanotubes. They possess low intrinsic strain energy, tunable band gaps, and high stiff…
Abstract Progress in making pH‐responsive polyelectrolyte brushes with a range of different grafting densities is reported. Polymer brushes of poly(2‐(diethylamino)ethyl methacrylate) were synthesised via atom transfer radical polymerisation on silicon wafers using a ‘grafted from’ approach. The [11‐(2‐bromo‐2‐methyl)…
We report on a detailed study of the filling factor and electronic structure of the trimetal nitride fullerene ${\mathrm{Dy}}_{3}\mathrm{N}@{\mathrm{C}}_{80}(\mathrm{I})$ filled single-wall carbon nanotubes (SWCNTs), the so-called endohedral peapods $({\mathrm{Dy}}_{3}\mathrm{N}@{\mathrm{C}}_{80}@\mathrm{SWCNTs})$, us…
A significant enhancement of ultraviolet (UV) emission has been observed in chemically grown ZnO samples using a thermal treatment at 200 °C. The intensity of UV emission can reach up to fifty times its initial value, while that of the visible emission decreases to a negligible value. Based on the thermal desorption s…
We demonstrate that the transmission of far- and near-field incident light through a periodic array of subwavelength holes in a vanadium-dioxide $(\mathrm{V}{\mathrm{O}}_{2})$ thin film is enhanced in the infrared range with respect to transmission through the unperforated film when $\mathrm{V}{\mathrm{O}}_{2}$ underg…
Nanosized bismuth doped calcium sulfide (CaS:Bi) particles have been synthesized by a wet chemical co-precipitation method. The average size of the nanoparticles was found to be about 30 nm. The particles were characterized by x-ray diffraction (XRD), transmission electron microscopy (TEM), UV–vis spectroscopy and flu…
Hoch, höher, am höchsten: Die Kombination von Azid- und hmp−-Liganden (hmpH=2-(Hydroxymethyl)pyridin) ermöglichte die Synthese zweier Salze eines neuen Mn10-Kations mit hoch symmetrischer Struktur (siehe Strukturausschnitt; MnII gelb, MnIII blau, O rot, N grün, C grau). Das Kation ist vollständig ferromagnetisch gekop…
Abstract Plasma polymerisation of N ‐isopropyl acrylamide (NIPAAm) presents an exciting route for the production of thermally responsive coatings on a wide variety of substrates for applications in tissue culture and microfluidics. One issue associated with the polymerisation of NIPAAm via plasma polymerisation is the…