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。
Various one-, two- and three-dimensional Group 14 (C, Si, Ge, Sn, and Pb) element structures at P = 1 atm are studied in this work. As expected, coordination number (CN)--not an unambiguous concept for extended structures--plays an important part in the stability of structures. Carbon not only favors four-coordination…
The refractive indices ( n ) and densities (ρ) of x Li 2 O–(100− x )TeO 2 glasses with x =15–30 and x Na 2 O–(100− x )TeO 2 glasses with x =10–20 are measured in the temperature range of 30°–150°C in order to clarify thermo‐optic coefficients (d n /d T ) and the temperature dependence of the electronic polarizability…
Abstract Electrospinning was applied to prepare the drug‐loaded nanofibers for potential use in drug delivery and wound healing. Clarithromycin (CLM) was selected as the model drug, whereas poly( l ‐lactic acid) (PLLA) was used as the biodegradable and biocompatible polymer carrier. The low toxicity solvents were test…
(2-Chloro-2-alkoxycarbonyl)ethyl acrylates with methyl, dodecyl, perfluoroalkyl, siloxane, oligooxyethylene, and mesogenic ester substituents were synthesized as inimers for self-condensing vinyl polymerization (SCVP) to produce hyperbranched polyacrylates. The inimers were polymerized by atom transfer radical polymer…
We report the synthesis of (Ca₀.₃₃Na₀.₆₆)Fe₂As₂ showing a superconducting transition with T(c) above 33 K. Both dc magnetic susceptibility or specific heat measurements indicated the bulk superconductivity nature of the sample. We also have successfully grown single crystals of the (Ca₀.₃₃Na₀.₆₆)Fe₂As₂ superconductors…
Abstract Acrylic acid(AA) was grafted onto cellulose in homogeneous media by using ammonium persulfate as an initiator in the presence of N,N′ ‐methylenebisacrylamide as a crosslinker under microwave (MW) irradiation. The powerful and highly efficient direct solvent, 1‐butyl‐3‐methylinidazolium chloride ionic liquid w…
Rectangle- and triangle-shaped microscale graphene films are grown on epitaxial Co films deposited on single-crystal MgO substrates with (001) and (111) planes, respectively. A thin film of Co or Ni metal is epitaxially deposited on a MgO substrate by sputtering while heating the substrate. Thermal decomposition of po…
Polymeric materials used in biomedical devices, bioartificial organs, or for the fabrication of tissue engineering scaffolds should completely prevent the activation of the coagulation system and subsequent clot formation. Surface endothelialization is considered an important tool to optimize the blood compatibility o…
Activated carbons (ACs) are obtained by microwave-assisted activation of petroleum coke with KOH as an activation agent and used as electrode materials for electric double-layer capacitors. The pore structure and functional groups of ACs are characterized by Fourier transform infrared spectroscopy and the nitrogen ads…
The interface of Cu(001) electrode surfaces in 10 mM HCl solution was studied by in situ surface x-ray diffraction and density functional theory, focusing on the precise structure of the $c(2\ifmmode\times\else\texttimes\fi{}2)$ Cl adlayer formed at positive potentials. Crystal truncation rod measurements in this adso…
N-doped ZnO nanowires are synthesized at a relatively low growth temperature of 500 degrees C by directly heating zinc powder using NH(3) as the dopant. The incorporation of N into the ZnO nanowires is experimentally confirmed by x-ray photoelectron spectroscopy, Raman spectra and photoluminescence measurements. By co…
We report a systematic study on preparation and morphology control of macroscopically homogeneous hybrid films composed of a block copolymer and a metal salt, where one block interacts with a metal salt by metal-to-ligand coordination. Hybrids were prepared by blending a polystyrene- b -poly(4-vinylpyridine) (PS−P4VP,…
Abstract Microcellular foaming of reinforced core/shell Polymethylmethacrylate (PMMA) was carried out by means of supercritical CO 2 in a single‐step process. Samples were produced using a technique based on the saturation of the polymer under high pressure of CO 2 (300 bars, 40°C), and cellular structure was controll…
The nanocomposites of polypyrrole (PPy) and multi-walled carbon nanotube (MWCNT) with different composition are synthesized by the chemical oxidative polymerization method. In these composites, the MWCNTs are uniformly coated by PPy with different thickness. The electrochemical properties of the composite electrodes a…
The superhydrophobicity of rough surfaces owes its existence to heterogeneous wetting. To investigate this phenomenon, density gradients of randomly placed holes and pillars have been fabricated by means of photolithography. On such surfaces, drops can be observed in the Cassie state over the full range of f(1) (fract…
Nanocubes of LaB 6 and Sm 0.8 B 6 have been synthesized using low‐temperature combustion synthesis, a technique that had only been used previously for the preparation of oxides. The hexaboride nanocubes were prepared using lanthanum nitrate or samarium nitrate, carbohydrazide, and boron powders. The furnace temperatur…
A fluid nematic-like phase is induced in monodisperse iron oxide nanoparticles with a diameter of 3.3 nm. This supramolecular arrangement is governed by the covalent functionalization of the nanoparticle surface with cyanobiphenyl-based ligands as mesogenic promoters. The design and synthesis of these hybrid materials…
This study evaluated the ability of the multi wall carbon nanotubes (MWCNT) to induce extra pulmonary toxicities in rats following intra-tracheal (IT) instillation of two MWCNT. Two carbon nanoparticles were instilled into the lungs of rats (0.2, 1, and 5 mg/kg b.w.) and at different post-exposure intervals, blood and…
Spherical shaped nanoparticles of series Y(2 - x)Eu(x)O(3) (x = 0.06, 0.10, 0.20, and 2) and Gd(2 - x)Eu(x)O(3) (x = 0.06, 0.10) were prepared by thermolysis of 2,4-pentanedione complexes of Y, Gd, and Eu. The bixbyite phase of Gd(2 - x)Eu(x)O(3) samples was formed at 500 degrees C, whereas the thermal decomposition o…
The use of yttrium aluminosilicate (YAS) glasses as vectors for radiotherapy is critically affected by the glass durability in a physiological medium. To understand the relation between glass composition, structure, and durability at an atomistic level, we have carried out classical molecular dynamics (MD) simulations…