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。
Two unique octa- and hendeca-nuclear dysprosium(III) clusters incorporating [Dy(4)(μ(3)-OH)(4)](8+) cubane units have been synthesized with the 1,10-phenanthroline-2,9-dicarbaldehyde dioxime (H(2)phendox) ligand and DyCl(3)·6H(2)O or Dy(OAc)(3)·4H(2)O. They are [Dy(8)(OH)(8)(phendox)(6)(H(2)O)(8)]Cl(2)(OH)(2)·18H(2)O·…
Li is known for its ability to increase the conductivity of CuO films. Li doped CuO nanoparticles prepared by flame spray pyrolysis and followed by spin coating for the film preparation were studied at dopant concentrations of 0.5 at %, 2 at %, 3.5 at % and 5 at %. The photocurrent density and photon-to-hydrogen conve…
Heterometallic 3d-4f polyoxometalates still remain as an almost unexplored class of polyoxoanions despite showing great potential in fields such as molecular magnetism. This Frontier reviews some of their synthetic, structural and magnetic features and gives a personal view on future research in this area.
A series of unsymmetrical distyryl BODIPYs have been prepared which function as highly potent photosensitisers with in vitro IC(50) values as low as 15 nM. Their cellular uptake, subcellular localisation and photocytotoxicity depend greatly on the styryl substituents.
Volume 6A Welding Fundamentals and Processesis a focused revision of the welding process information in the 1993 Vol. 6 Welding, Brazing, and Soldering. The new volume expands on the fundamental principles of welding, including heat transfer, solidification, residual stress and distortion, and has an all-new section o…
Surface enhanced Raman scattering (SERS) is an analytical sensing method that provides label-free detection, molecularly specific information, and extremely high sensitivity. The Raman enhancement that makes this method attractive is mainly attributed to the local amplification of the incident electromagnetic field th…
Bridged polysilsesquioxanes (BPS) are a class of versatile functional hybrid materials with tunable chemical, physical and mechanical properties. This tutorial review describes recent advances of these functional hybrid nanomaterials. The review includes control of factors affecting nanometre scale morphology, the pre…
This report describes a new approach to successfully synthesize high-quality nickel oxide (NiO) nanorods with an average diameter of about 60 nm and a length of less than one micrometre viathermal decomposition of a precursor complex nickel benzoate dihydrazinate at 100 °C. The structural features, crystallinity, puri…
Nanostructured materials are a new class of enzyme mimics, the inhibitors of which have not been studied. Herein, we demonstrate the screening of inhibitors for Au@Pt nanorod (NR) oxidase mimics. In addition, based on the enzyme inhibition reaction, determination of "poisoning" inhibitors is demonstrated.
Here we demonstrate a new route to achieve the sintering of silver nanoparticles (Ag NPs) at room temperature. The as-prepared Ag NPs coalesced when they were immersed in electrolyte solutions, such as NaCl and MgSO4. The square resistances of Ag NPs thin films decreased from tens of kiloohms to lower than 1 ohm after…
Both the excitation and emission processes of a fluorescent molecule positioned near a noble metal nanocrystal can interact strongly with the localized surface plasmon resonance of the metal nanocrystal. While the effects of this plasmon-fluorophore interaction on the intensity, polarization, and direction of the fluo…
National Basic Research Program of China [2007CB707803]; Chinese National Programs for High Technology Research and Development
We present a simple seed-less synthesis procedure to fabricate stable gold nanostars (AuNSs) with tunable extinction properties from the visible up to 1800 nm, depending on the average values of core size and branch length. The experimental results are compared with data from Finite Elements Method computations by usi…
We report here the biosynthesis of gold and silver nanoparticles using leaf extract of ginger (Zingiber officinale). The treatment of aqueous solution of AgNO3 and HAuCl4 with ginger leaf extract resulted in rapid formation of stable nanoparticles for both metals. The growth of nanoparticles is monitored by UV-vis spe…
Helical structures with their unique topology have attracted broad attention during the past decade. Rotational symmetry, chirality, and unusual mechanical properties are just a few attributes associated with helical geometry that make it special for materials science. Typically helical geometry was the domain of biol…
In this work, flower-like hierarchical a-MnO2 sub-microspherical superstructures were synthesized by means of a novel interfacial strategy, where the amphiphilic tri-block poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) was used both as a reaction material and a template in an acidic media. Further…
Doping CeO(2) with Pd or Pt increases the oxygen storage capacity (OSC) and catalytic activity of this environmentally important material. To date, however, an understanding of the mechanism underlying this improvement has been lacking. We present a density functional theory analysis of Pd- and Pt-doped CeO(2), and de…
With the common application of nanoscale zinc oxide (nZnO) and significant potential for its release directly into aquatic environments, it is urgent to carry out research on ecotoxicological impact of nZnO. The characterization of nZnO, the amount of ˙OH in suspensions in the presence of light and the acute toxicity…
Ultra strong polyethylene fibers can be made by gel-spinning of Ultra High Molecular Weight Polyethylene (UHMWPE). Such fibers exhibit extraordinary properties. They show very high tensile strength and stiffness and low density. On the other hand, the axial and transverse compression strength is low. This is a large d…
Polyethylene terephthalate (PET) was depolymerized to monomer bis(2-hydroxyethyl) terephthalate (BHET) using excess ethylene glycol (EG) in the presence of metal oxides that were impregnated on different forms of silica support [silica nanoparticles (SNPs) or silica microparticles (SMPs)] as glycolysis catalysts. The…