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。
Abstract Zinc oxide (ZnO) thin films have been prepared by ultrasonic Spray pyrolysis (USP) technique using zinc acetate dihydrate dissolved in methanol, ethanol and deionized water. A number of techniques, including X‐ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectro…
Abstract Poly(ethylene succinate) (PES) and its copolyesters that contain 7, 10, or 48 mol % butylene succinate (BS) were synthesized through a direct polycondensation reaction with titanium tetraisopropoxide as the catalyst. Measurements of intrinsic viscosity (1.08–1.27 dL/g) proved the success of the preparation of…
Tetragonal Sn nanoparticles of ∼15 nm diameter are produced in Al 2 O 3 by direct Sn implantation at room temperature. After thermal annealing at 1000 °C in oxygen, the implantation-induced amorphous region recrystallized and the Sn nanoparticles turned into SnO 2 nanoparticles with an average diameter of ∼30 nm as re…
Abstract The morphologies of the polymer networks in the polymer network/LC composite of reverse‐mode polymer‐stabilized cholesteric texture (PSCT) films was observed. The polymer network/LC composite was prepared from photopolymerization of the acrylate monomers, which had rod‐like rigid cores in monomer/LC mixture.…
In this study, the effects of spandex brand, the tightness factor of the base, and spandex yarn on the dimensional and physical properties of cotton/spandex single jersey fabrics are investigated. In order to examine the effects of the tightness factor of cotton and spandex yarn, fabric samples were knitted by feeding…
Abstract In this article, core‐shell structure nanofibers were fabricated by coaxial electrospinning with biodegradable copolymer Poly( L ‐Lactic‐ε‐Caprolactone) [P(LLA‐CL) 50 : 50] as shell and bovine serum albumin (BSA) as core. Morphology and microstructure of the nanofibers were characterized by scanning electron…
Abstract Silk fibroin (SF)/gelatin blend nanofibers membranes as scaffolds were fabricated successfully via electrospinning with different composition ratios in formic acid. The formation of intermolecular hydrogen bonds and the conformational transition of SF provided scaffolds with excellent mechanical properties. F…
Hexagonal network-type silicon microstructures with nanoprotrusions were designed, fabricated, and their surface wettability was characterized. The nanoprotrusions were fabricated by reactive ion etching (RIE). The microstructures were fabricated by deep reactive ion etching (DRIE). For hydrophobicity, plasma polymeri…
Reversible immobilization onto the surface of highly porous polymers through the co-assembly of stimuli-responsive polymers is explored (see figure). Elastin-based side-chain polymers (EBPs) are prepared by RAFT and attached to the surface of PEG-based emulsion-templated porous polymers, leading to a responsive surfac…
The frequency dependences of the imaginary and real parts of complex dielectric permittivity inherent to planarly aligned layers of nematic liquid crystals 5CB doped with multiwalled carbon nanotubes (CNT) were investigated in a wide range of frequencies (f = 10 -2 -10 6 Hz) and CNT concentrations (c = 0-0.25 wt.%). I…
We present heat-capacity measurements of the upper critical fields of single-crystal ${\text{NdFeAsO}}_{1\ensuremath{-}x}{\text{F}}_{x}$. In zero-magnetic field a clear step in the heat capacity is observed at ${T}_{c}\ensuremath{\approx}47\text{ }\text{K}$. In fields applied perpendicular to the FeAs layers the step…
Porous silicon (PSi) is a promising biomaterial presenting the advantage of being biocompatible and bioresorbable. Due to the large specific surface area and unique optical features, these microporous structures are excellent candidates for biosensing applications. Investigating device functionality and developing sim…
It is widely recognized that further extension of optical lithography to even smaller dimensions will be accompanied by rapid increasing cost and difficulty. There is growing interest in devising alternative patterning methods that will support the evolution of microelectronics to the 10nm length scale. Block copolyme…
Cluster's last stand: The hydrated gallium/indium nanocluster [Ga7In6(μ3-OH)6(μ-OH)18(H2O)24(NO3)15] was prepared in a facile, high-yielding synthesis. The use of a key nitroso-containing organic compound as an additive allows for the isolation of multiple grams of the cluster. This larger-scale synthesis facilitates…
Band-edge liquid crystal lasers are of interest for a number of applications including laser projection displays. Herein, we demonstrate simultaneous red-green-blue lasing from a single liquid crystal sample by creating a two-dimensional laser array fabricated from dye-doped chiral nematic liquid crystals. By forming…
A new family of oxypnictide superconductors, LaFeAsO0.89F0.11, brings new impetus to the field of high-temperature superconductivity. In this work, we show that the upper critical field values Hc2 (48 K) = 13 T and Hc2(0) can exceed 80–230 T in a high-pressure-fabricated NdO0.82F0.18FeAs bulk sample with Tc of 51 K. W…
$2p$-based magnetic moments and magnetic coupling are studied with density-functional-based methods for substitutional N in the alkaline earth monoxide series MgO, CaO, SrO, BaO. The hole is rather strongly localized near the ${\text{N}}^{2\ensuremath{-}}$ ion, being somewhat more so when strong on-site interactions a…
Chemoselective cross-coupling reactions were demonstrated for C-S bonds in the BODIPY dyes 1 and 4, and similar reactions were applied to make the two-dye cassette system 11.
We have combined optical characterization with a magnetic actuation technique to measure the stiffness of single-walled carbon nanotubes of defined crystal structure. The measured stiffnesses correspond to an average Young's modulus of E = 0.97 +/- 0.16 TPa. For the structures investigated, no dependence on the nanotu…
What, where, when: A combination of both surface-sensitive (diffuse reflectance infrared Fourier transform spectroscopy, DRIFTS) and bulk-sensitive (Raman spectroscopy) detection at different catalyst-bed positions is shown to be a powerful tool to facilitate deeper understanding of complex dynamic surface and bulk pr…