Materials Literature
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Alumina- and titania-based composite coatings containing ferromagnetic nanoparticles have been produced on UKN-5000P carbon fibers by an in situ organo-inorganic hybrid sol-gel process using appropriate aqueous metal chloride solutions containing Fe(III) and Co(II). The morphology, phase composition, and elemental com…
SnO 2 /ZnS one-dimensional core/shell nanowires have been synthesized by a two-step growth process. Phase and structural analyses reveal that the core has a single crystalline phase, whereas the shell has a polycrystalline phase covering the surface of the core. The optical properties of SnO 2 nanowires change as a fu…
Niobium oxide films have been grown by reactive rf sputtering in a vacuum system and characterized by absorption spectroscopy and X-ray diffraction. The thickness of the (optically transparent) films has been determined as a function of sputtering time by examining interference effects in a plane-parallel layer. The a…
Abstract Morphology of four kinds of aromatic polyimidazoles was examined by using reaction‐induced crystallization during solution polymerization at a concentration of 1% at 350°C in liquid paraffin (LPF), dibenzyltoluene (DBT), and the mixture of these solvents. Aggregates of ribbon‐like crystals of poly[2,6‐(2,6‐na…
The static modulation structure of the phase front at the field-induced first-order transition point near the critical end point (CEP) was discussed on the basis of the Landau-type free-energy function. It was confirmed that the field E dependence of the thickness of the phase front is proportional to ( E CEP - E ) -1…
Josephson effect in a planar graphene junction is studied by assuming that the coupling of a graphene sheet and two superconductors deposited on its top is described by a tunneling Hamiltonian. This model properly takes account of the proximity effect characteristic to a planar junction, and allows us to treat monolay…
Abstract Overused vegetable oils, which are considered to be a waste and available in huge quantities after frying processes, were directly ethoxylated using a conventional cheap catalyst in order to obtain an economically valuable ethoxylated product to replace the imported intermediate derivatives and at the same ti…
A single-crystal X-ray structure analysis of Co x TiS 2 ( x = 0.26, 0.43, and 0.57) at room temperature has been performed to investigate both the ordered atomic arrangements of intercalated Co atoms and their site occupancies, as well as the nature of the chemical bond from the electron density distribution (EDD) obt…
Possessing the advantages of transparency, con-ductivity, and flexibility, graphene is a serious alter-native to indium tin oxide (ITO) electrodes in solar cells and may serve as a sustainable electrode. By performing interface engineering of layer-by-layer stacked graphene on glass, Kian Ping Loh and co-workers demon…
Abstract Ethylene/1‐olefin copolymers with controlled bimodal molecular weight distributions (MWDs) and chemical composition distributions (CCDs) have improved mechanical and rheological properties. In this work, the Stockmayer's distribution was used to develop a criterion for CCD bimodality. The proposed criterion w…
Abstract The reaction kinetics of reversible liquid‐phase esterification of acetic acid with methanol is investigated in the temperature range 26–50°C using sulfuric acid catalyst. The main goal of this work is to study the effect of catalyst concentration and sensitivity to the presence of water on the rate expressio…
Rare-earth analogs of the mineral bournonite, PbCuSbS 3 , have been synthesized for the first time and their physicochemical properties have been studied. PbCuSbS 3 , EuCuSbS 3 , YbCuSbS 3 , PbCuLaS 3 , and PbCuNdS 3 are isostructural with each other and crystallize in orthorhombic symmetry with the following unit-cel…
We succeeded in making a silver split-ring (SR) structure of approximately 130 nm in diameter on a glass substrate using a nanosphere lithography technique. The light scattering spectrum in visible near-infrared region of a single, isolated SR was measured using a microscope spectroscopy optical system. The electromag…
By using Co 2+ and Co 3+ salts, and freshly extracted ovalbumin, Co 3 O 4 nanocrystals have been synthesized successfully. The pH of the solution was self-regulated for the hydrolysis of metal ions as the ovalbumin-water mixture was highly basic. Water soluble ovalbumin proteins served as a perfect matrix for entrapme…
A multicomponent solid electrolyte of composition Ce 0.8 (Sm 0.75 Sr 0.2 Ba 0.05 ) 0.2 O 2 − δ has been synthesized by three different techniques: solid-state reaction, laser evaporation, and the glycine nitrate process. Its microstructure, sintering kinetics, and electrical properties have been studied in relation to…
The non-selectivity of chemotherapeutics between normal tissue and pathological sites poses a challenge for the treatment strategy for advanced colorectal carcinoma. To obtain sufficient antitumor activity, optimization of the therapeutic regimen is of great importance. We investigated PEG-liposomal oxaliplatin potent…
The effect of gradually varying refractive index at each interface of a multilayered porous silicon photonic structure is studied experimentally and theoretically. The variation of refractive index at the interface, between any two consecutive layers, is done in small ladder-like steps (increasing/decreasing) and the…
We investigate the structural, magnetic, and specific heat behavior of the hexagonal manganite Dy${}_{0.5}$Y${}_{0.5}$MnO${}_{3}$ in order to understand the effect of dilution of Dy magnetism with nonmagnetic yttrium. In this compound, the triangular Mn lattice orders antiferromagnetic at ${T}_{N}^{\mathit{Mn}}\ensure…
Abstract To suitably treat and cure special skin damage, the exertion of pressure on the injured limb is advised by therapists. This type of therapy is called pressure therapy. Currently, pressure therapy is performed with pressure garments on the tissue. In all pressure‐garment applications, the amount of exerted pre…
The magnetoelectronic properties of one-dimensional zigzag graphene nanoribbons are investigated using the Peierls tight-binding model with uniform magnetic and electric fields. They are mainly determined by external fields and quantum confinement effects. Magnetic fields lead to quasi-Landau levels (QLLs), enhance pa…