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。
Biocompatible polymeric material with well-defined, interconnected porous structure plays an important role in many biomedical applications, such as tissue engineering, controlled drug release, biochemical sensing, and 3D cell culture for drug discovery. In this study, a novel fabrication process for porous polymer is…
Nanolayered carbon/silica superstructures with tunable morphologies (tubes, fibers, or spheres) and sizes (micro-sized or macroscopic) were synthesized by self-assembly of perylenedidimide-bridged silsesquioxane through an easy sol-gel process followed by carbonization. The derived nanocomposite materials show interes…
Recently Tobin et al (2007 J. Phys.: Condens. Matter 19 315218) reported on the spin-resolved photoemission study of Fe 3 O 4 (001) films, claiming magnetite being a case against half-metallicity. In the present communication we re-examine recent spin-resolved photoemission experiments on Fe 3 O 4 and explain why thei…
Two boride layers were found to form at the interface of iiron-chromiium alllloys (10 and 25% Cr) or an industrial 13% Cr steel and boron at 850-950 oC and reaction times in the range 1-12 h. In the case of a Fe-10% Cr alloy and the steel, the layers are based on the FeB and Fe2B compounds. With a Fe-25% Cr alloy, the…
This work investigates the switching characteristics of the polymer-stabilized vertical alignment (VA) liquid crystal (LC) cell. The experimental results reveal that the fall time of the cell declines as the monomer concentration increases because the vertically-aligned polymer networks accelerate the relaxation of th…
Generalized gradient approximation with correction for Hubbard energy was used to study electronic and magnetic properties of defected CoO. Vacancies were introduced into the cobalt sublattice. Calculations were performed for point defect concentrations of 3.125% and 6.25%. Trivalent cobalt ions are created in both fe…
Abstract Moisture‐cured polyurethane is one of the commercially important polymers, which is widely used in sealants, coatings, and reactive hot‐melt adhesives. A series of moisture‐cured polyurethane/polysiloxane (PUSR) copolymers were successfully prepared using a two‐step solution polymerization procedure. Both ami…
Abstract The corrosion and inhibition behavior of carbon steel in 1 M HCl in the presence of 2‐(cyclohexylaminomercapto) benzothiazole (CMB) was investigated using weight‐loss measurements, galvanostatic polarization studies and UV‐VIS spectrophotometry. The morphology of a surface was analyzed by using Mössbauer spec…
The colloid stability of thymine-coated gold nanoparticles under light irradiation as a function of particle size, surface charge, and exposure time was investigated in alkaline, aqueous solutions as well as in a 0.5 vol % of DMF in H(2)O mixture. With increasing exposure to light irradiation at 280 nm, more and more…
Two independently recognized in vitro polymer aggregation variables, electric field and pH, can be used in concert to produce suspended membranes from solutions of type I collagen monomers, without need of a supporting substrate. A collagen network film can form at the alkaline-acidic pH interface created during the n…
A family of distorted heterometallic cubanes, [Mn (III) 3Ni (II)(hmp) 3O(N 3) 3(O 2CR) 3], where O 2CR (-) is benzoate ( 1), 3-phenylpropionate ( 2), 1-adamantanecarboxylate ( 3), or acetate ( 4) and hmp (-) is the anion of 2-pyridinemethanol, was synthesized and structurally as well as magnetically characterized. The…
This work demonstrates axially symmetric polarization converters based on photo-alignment in dye-doped liquid crystal (DDLC) films. A linear-shape and linearly polarized beam is applied onto a rotated homogeneous DDLC cell to achieve three axially symmetric polarizations - radial, azimuthal and vortical. Additionally,…
MgAl hydrotalcites (Mg/Al molar ratios 3 and 4) were synthesized using alkali and alkali-free methods at different pH's. They were calcined to form MgAl oxides, and then loaded with Na, K metals at different content. The characterization was performed with XRD, BET, and FTIR techniques, and the basicity was determined…
We report a transient lateral photoeffect (LPE) in thin metallic Co films deposited on n-type Si substrates with native SiO(2) surfaces. Under the nonuniform irradiation of a laser beam, the lateral phtovoltage (LPV) shows high sensitivity to the laser position in the metal film plane. This effect can be interpreted b…
Light membranes composed of single-walled carbon nanotubes (SWNTs) can serve as efficient nanoscale vessels for encapsulation of tetrafluoromethane at 300 K and operating external pressure of 1 bar. We use grand canonical Monte Carlo simulation for modeling of CF4 encapsulation at 300 K and pressures up to 2 bar. We f…
The temperature dependence of the birefringence above T c in high quality BaTiO 3 single crystals has been measured with very high accuracy. On the basis of literature data, the behaviour of the anomalous birefringence can be explained by the existence of polar clusters (microregions/nanoregions) connected with correl…
The self-assembly, the molecular dynamics, and the kinetics of structure formation are studied in dipole-functionalized hexabenzocoronene (HBC) derivatives. Dipole substitution destabilizes the columnar crystalline phase except for the dimethoxy- and monoethynyl-substituted HBCs that undergo a reversible transformatio…
This DOI is not currently attached to any metadata records. DOIs can’t actually ever be deleted (they’re persistent), but sometimes our members create DOIs in error. We do have a process to approximate deletion which we follow only in rare cases where the DOI has been genuinely created in error, and most crucially, if…
High-Quality Carbon Nanotube Growth at Low Temperature by Pulse-Excited Remote Plasma Chemical Vapor Deposition, Yamazaki, Yuichi, Sakuma, Naoshi, Katagiri, Masayuki, Suzuki, Mariko, Sakai, Tadashi, Sato, Shintaro, Nihei, Mizuhisa, Awano, Yuji
In this paper, the mechanical properties, such as the axial and radial Young’s moduli, shear moduli, buckling loads and natural frequencies, of single-walled carbon nanotubes, are estimated by a finite element approach. Each carbon nanotube is simulated as a frame-like structure and the primary bonds between two neare…