Materials Literature
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The first results of electrospinning fibrinogen nanofibers for use as a tissue-engineering scaffold, wound dressing, or hemostatic bandage are reported. Structures composed of fibrinogen fibers with an average diameter of 80−700 nm were electrospun from solutions composed of human or bovine fibrinogen fraction I disso…
Abstract Surface‐enhanced Raman scattering (SERS) spectra were recorded for p ‐mercaptobenzoic acid (PMBA) monolayers on Ag and Au surfaces. As evidenced by the relative intensities of the bands corresponding to the symmetric stretching COO − vibration and to the out‐of‐plane vibration of the phenyl ring, the molecule…
Abstract Super‐hydrophobic surfaces, with a water contact angle (CA) greater than 150°, have attracted much interest for both fundamental research and practical applications. Recent studies on lotus and rice leaves reveal that a super‐hydrophobic surface with both a large CA and small sliding angle (α) needs the coope…
The synthesis of new photochromic 2-indolylfulgide dicyanomethylene derivatives is described and their structures confirmed by X-ray crystallography, NMR, mass spectroscopy and elemental analysis. The molecules exhibit two thermally stable isomeric forms, which are only optically interconverted. The ring-open form abs…
The oxygen atom transfer-electron transfer (ET) mechanistic dichotomy has been investigated in the oxidation of a number of aryl sulfides by H2O2 in acidic (pH 3) aqueous medium catalysed by the water soluble iron(III) porphyrin 5,10,15,20-tetraphenyl-21H,23H-porphine-p,p',p",p"'-tetrasulfonic acid iron(III) chloride…
The equilibrium and nonequilibrium phase behavior of a protein suspension is investigated as a function of strength of interparticle attraction and protein concentration. The equilibrium phase behavior suggests that the range of the particle attractions is a small fraction of their diameter. At volume fractions and st…
It has been shown that glancing angle deposition (GLAD) coupled with a prefabricated seed layer can be used to fabricate periodic microstructures. In this article, we show that the column competition effects inherent within aperiodic GLAD films can be delayed in periodic films due to the tendency of the film to achiev…
Abstract A new family of lanthanide carboxylate complexes with benzoic acid and its derivatives was synthesised and characterised. The structures of the complexes were established by X‐ray crystallography, which revealed that various chelating modes of the carboxylate ligands are present on the metal ion, resulting in…
The quasi-unit cell picture describes the atomic structure of quasicrystals in terms of a single, repeating cluster which overlaps neighbors according to specific overlap rules. In this paper, we discuss the precise relationship between a general atomic decoration in the quasi-unit cell picture atomic decorations in t…
Surface Patterson Functions have been derived by direct inversion of experimental Low-Energy Electron Diffraction I-V spectra measured at multiple incident angles. The direct inversion is computationally simple and can be used to discriminate between different structural models. 1x1 YSi_2 epitaxial layers grown on Si(…
Alternating current susceptibility and direct current magnetization have been studied for polycrystalline Ca$_{1-x}$Mn$_x$O. On increasing the Mn content, magnetic ordering changes from spin-glass behavior for $0.25 \leqslant x \leqslant 0.4$ to antiferromagnetic order. The paramagnetic/antiferromagnetic transition is…
We present chronocoulometry experiments and equilibrium Monte Carlo simulations for the electrosorption of Br and Cl on Ag(100) single-crystal electrode surfaces. Two different methods are used to calculate the long-range part of the adsorbate-adsorbate interactions. The first method is a truncated-sum approach, while…
The plasma–copper reaction that is based on the hydrogen chloride (HCl) feed gas has been studied. Copper line can be etched at a high rate with this process. The wall profile can also be controlled by the process condition. Influences of process parameters such as plasma exposure time, pressure, plasma power, and sub…
Dept. of Crystalline Materials Science, Nagoya University, Nagoya 464-8603 Dept. of Applied Physics, Nagoya University, Nagoya 464-8603 SPring-8/JASRI, 1-1-1 Koto, Mikazuki-cho, Sayo-gun, Hyogo 679-5198 Faculty of Science and Technology, Science University of Tokyo, Chiba 278-8510 ISSP, University of Tokyo, Kashiwa 27…
Second-order optical nonlinearities, d 33 , of LaBGeO 5 , LiBGeO 4 and Ba 2 TiGe 2 O 8 crystals in transparent crystallized glasses were estimated by means of the Maker fringe technique. Transparent surface crystallized glasses were fabricated by crystallization of a glass with the exact or close stoichiometric compos…
Cation-driven and anion-driven electrochemomechanical deformations (ECMD) in electrodeposited polypyrrole (PPy) films have been investigated by means of cyclic voltammetry and cyclic step-voltammetry (CSV). The film deposited from hydrochloric acid (PPyCl) expanded upon anodic reaction (anodic expansion) while that de…
This study investigated the potassium (K) status of sugarcane growing soils in Fiji, using samples taken from fields under cultivation and also from sites that had not been cultivated for at least 30 years. Five sites were on highly weathered oxyhydroxide soils where the total K contents and K retention capacities wer…
GaN-based metal-oxide-semiconductor (MOS) capacitors were fabricated by using Ga oxide. The oxide was formed by photoelectrochemical (PEC) oxidation of GaN and was dominated by the β-Ga 2 O 3 phase. The electrical properties were characterized by capacitance–voltage and current–voltage measurements. The MOS structures…
ZnO nanowires were synthesized at 1380°C from ball-milled ZnO powders by a thermal evaporation procedure with argon carrier gas without any catalysts. Scanning electron microscopy revealed that the typical diameter and length of the ZnO nanowires are in the uniform ranges of 15 to 40 nm and 10 to 70 µm, respectively.…
New metal-ordered manganites RBaMn_{2}O_{6} have been synthesized and investigated in the structures and electromagnetic properties. RBaMn_{2}O_{6} can be classified into three groups from the structural and electromagnetic properties. The first group (R = La, Pr and Nd) has a metallic ferromagnetic transition, follow…