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。
We describe a new nuclear staining strategy by in vivo anchoring Hoechst 33342, a commonly used nuclear staining organic dye, onto water-soluble N -acetylcysteine (NAC)-capped CdTe quantum dots (QDs). The strong H-bonding and electrostatic interaction between the organic dye and the QDs entice the positively charged n…
Abstract The effects of different grafting content of 4,4′‐methlenebis(phenyl isocyanate)‐modified attapulgite (ATT‐MDI) on thermal and mechanical properties of segmented polyurethane (PU) elastomers were investigated. The ATT‐MDI nanorods with different grafting content were prepared by treating ATT with heat and aci…
Intercalation of ethylene glycol into layered yttrium hydroxide containing nitrate counterions was accomplished by heating the reagents in a methanol solution of sodium methoxide under autogenous pressure at 413 K for 20 h. The resulting crystalline material had an expanded interlayer distance of 10.96 A, confirming t…
Variable-temperature and polarized scanning photoconductivity measurements on ${\text{Zn}}_{1\ensuremath{-}x}{\text{Co}}_{x}\text{O}$ epitaxial films allow description of sub-band-gap ${\text{Co}}^{2+}$-derived photoionization excited states in this archetypal diluted magnetic oxide. Low-temperature (27 K) measurement…
We propose a new system, namely the periodic Co/Mg multilayer system, for optics applications in the EUV range. Close to the Mg L edge, i.e., around a wavelength of 25 nm or a photon energy of 50 eV, a reflectivity of about 43% is measured at 45° for s-polarized radiation. Moreover, it appears that this system is stab…
Turbostratically disordered tungsten diselenide (WSe 2 ) thin films with as few as two c -axis-oriented (basal plane) structural units were synthesized from modulated elemental reactants. By varying the number of elemental W−Se bilayers deposited, the thickness could be controllably varied from two to eighty such stru…
We present for the first time a general vacuum process for the growth of supported organic nanowires formed by pi-conjugated molecules, including metalloporphyrins, metallophthalocyanines, and perylenes. This methodology consists on a one-step physical vapor deposition of the pi-conjugated molecules. The synthesis is…
Porphyrins are a family of highly conjugated molecules that strongly absorb visible light and fluoresce intensely. These molecules are sensitive to changes in their immediate environment and have been widely described for optical detection applications. Surfactant-templated organosilicate materials have been described…
Multichannel analysis of graphene nanoribbons (GNR), often required for describing applications to practical devices, constitutes a heavy computational task, even in a simplified framework like that provided by discrete or nearest neighbour models. Scattering (S) matrix techniques, widely used for quantum transport in…
We have used inelastic neutron scattering and muon-spin rotation to compare the low energy magnetic excitations in single crystals of superconducting Fe(1.01)Se(0.50)Te(0.50) and non-superconducting Fe(1.10)Se(0.25)Te(0.75). We confirm the existence of a spin resonance in the superconducting phase of Fe(1.01)Se(0.50)T…
We report a comprehensive investigation of the organic superconductor ${(\text{TMTSF})}_{2}{\text{PF}}_{6}$ in the vicinity of the endpoint of the spin-density-wave metal phase transition where phase coexistence occurs. At low temperature, the transition of metallic domains toward superconductivity is used to reveal t…
The optical properties of a-periodic, depth-graded multilayer mirrors operating at 13.5 nm wavelength are investigated using different compositions and designs to provide a constant reflectivity over an essentially wider angular range than periodic multilayers. A reflectivity of up to about 60% is achieved in these ca…
Increasing anthropogenic influence on lotic environments as a result of civilisation has captured public interest because of the consequent problems associated with deterioration of water quality. Various biological monitoring methods that provide a direct measure of ecological integrity by using the response of biota…
Two new mesogenic monomers, namely 3,3’-dimethoxy-4,4’-di(hydroxyhexoxy)-N-benzylidene-o-Tolidine (Ia) and 4,4’-di(6-hydroxyhexoxy)-N-benzylidene-o-Tolidine (IIa), were reacted with cadmium sulfide (CdS) via an in situ chemical precipitation method in ethanol to produce CdS nanocomposites. A series of different mass c…
We report density-functional studies of the ${\text{Fe}}_{1\ensuremath{-}x}{\text{Cu}}_{x}\text{Se}$ alloy done using supercell and coherent-potential approximation methods. Magnetic behavior was investigated using the disordered local moment approach. We find that Cu occurs in a nominal ${d}^{10}$ configuration and i…
Nephrogenic systemic fibrosis (NSF) is a disease with progressive fibrosis. We describe two cases of NSF after exposure to a macrocyclic gadolinium-based contrast agent (GBCA) gadobutrol, which has been considered as a low-risk agent compared to linear GBCAs. The first case had chronic kidney disease (CKD) Stage 3 and…
We present ellipsometry data of the dielectric function of wurtzite ZnO in a wide energy range (2.5-32 eV). The ordinary and extraordinary components show a strong anisotropy above 10 eV, a feature for which ZnO deviates from the other II-VI wurtzite compounds. With the aid of ab initio calculations, performed within…
On the basis of a new acetal-protected glycerol monomethacrylate monomer ( cis -1,3-benzylidene glycerol methacrylate/BGMA) a series of potentially biocompatible and partially biodegradable homo- and block copolymers were synthesized. ATRP polymerization of BGMA yielded well-defined polyacrylates with pendant benzylid…
Dendritic polyphenylazomethines (DPA) could encapsulate ferroceniums by complexation of the electron-donating skeleton of the DPA imines. Upon addition of ferroceniums to a series of dendritic polyphenylazomethines (DPAGX, where X is the generation number, X = 1-4), the UV-vis spectra showed changes in a manner simila…
Gum, as the important noncellulosic tissue present in kenaf fiber, has a close relation with downstream processing and product properties, so the predominant task in pretreatment of kenaf fiber for textile application, retting, is to remove gum including pectin, hemicellulose, lignin, and other impurities without dama…