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。
Motivated by experimental developments on silicene nanosheets, we performed first-principles calculations to study the geometric, electronic and magnetic properties of pristine, N or B doped, as well as N and B co-doped silicene nanoribbons (SiNRs). It is shown that the substitution of N or B for Si is preferentially…
An artificial enzymatic cascade system with high activity and stability is engineered based on Fe3O4-Au@mesoporous SiO2 (MS) microspheres, which possess both intrinsic glucose oxidase (GOx)- and peroxidase-mimic activities.
Self supporting poly(methyl methacrylate) (PMMA)/In2O3 with varying In2O3 content (1, 2, 5 and 10 wt% In2O3 loading) nanocomposite films have been prepared by solvent-casting and spin casting techniques. The nanocomposite films have been structurally characterized by X-ray diffraction (XRD), and Fourier transform infr…
A tetraphenylethene (TPE)-based chiral polymer (TPETyr) was synthesized by the polymerization of 1,2-bis(4-ethynylphenyl)-1,2-diphenylethene (M-1) and 3′,5′-diiodo-N-α-tert-butoxycarbonyl-O-octyl-L-tyrosine methyl ester (M-2) via Sonogashira cross-coupling. Interestingly, the generated luminogen emits weak fluorescenc…
Interfacial self-assembly of nanoparticles is capable of creating large-area close-packed structures for a variety of applications. However, monolayers of hydrophilic cetyltrimethylammonium bromide (CTAB)-coated Au nanoparticles are challenging to assemble via interfacial self-assembly. This report presents a facile a…
Recently published methods for the quasi-static limit of the Helmholtz equation is extended to consider near cloaking for the full Maxwell equations. Effective near cloaking structures are described for the electromagnetic scattering problem at a fixed frequency. These structures are, prior to using the transformation…
A novel yet inexpensive quantum dot solar cell (QDSC) configuration relying on Förster resonance energy transfer (FRET) from electrode bound excited cadmium sulfide (CdS) quantum dots ensconced in zinc sulfide (ZnS) monolayers to unattached copper phthalocyanine (CuPc) molecules, dissolved in a free standing sulfide i…
For the first time we report that by introducing sub-nm roughness on a Si surface, the energy coupling between a single layer graphene (SLG) and the Si substrate can be improved substantially. This is contrary to the traditional view that a rough surface contact will weaken the energy coupling, rather than improve it.…
A facile route to fabricate nitrogen-doped ordered nanoporous carbons (NONCs) was developed based on in situ polydopamine coating onto the pore surface of ordered nanoporous silica. The NONC exhibits very attractive capacitive properties, including unusually large capacitances up to 538 F g−1, highly efficient electro…
Clusters composed of a 32 silver atom core, protected with thiolates of glutathione (GSH) and N-(2-mercaptopropionyl)glycine (MPGH), were synthesized by a solid-state route in milligram scale. They do not exhibit surface plasmon resonance unlike their larger sized nanoparticle analogues but show molecule-like features…
NIRF imaging of carbon nanodots derived from tire soot was clearly visualized in glioma in vitro and in vivo.
Buckypaper is an attractive candidate material for free-standing electrodes in supercapacitors due to its high electrochemical performance, light weight, and thin dimensions. At present, however, free-standing buckypapers exhibit severe limitations in terms of product quality, especially mechanical properties, which h…
A ZnO-RGO-Au composite with bi-functional behavior was fabricated: it was employed both as a photocatalyst for degrading pollutants (Rhodamine 6G) and a SERS substrate for real-time monitoring of the degradation quantitatively.
Molecular assembly provides an effective approach to construct discrete supramolecular nanostructures of various sizes and shapes in a simple manner. One important technological application of the resulting nanostructures is their potential use as anticancer drug carriers to facilitate targeted delivery to tumour site…
Patterning of electrospun nanofibers has recently attracted much attention for its usefulness in a wide range of applications. This paper reports on the generation of spatially defined nanofibrous patterns by direct deposition of electrospun nanofibers onto a variety of insulating substrates. It was found that topogra…
This study reports the effects of upconversion nanoparticles (UCNPs) LaF3:Yb,Er on zebrafish, with the aim of investigating UCNPs toxicity. LaF3:Yb,Er were prepared by an oleic acid/ionic liquid two-phase system, and characterized by transmission electron microscope and X-ray powder diffraction. 140 zebrafish embryos…
The isotropic to nematic liquid crystal (LC) phase transition is used to create organized assemblies of CdSe/ZnS core/shell quantum dots (QDs). Under controlled conditions, well dispersed QDs are expelled from the ordered domains of nematic LC into the remaining isotropic domains. The final LC phase produces three dim…
Fragmentation of chitosan in aqueous solution by hydrochloric acid was investigated. The kinetics of fragmentation, the number of chain scissions, and polydispersity of the fragments were followed by viscometry and size exclusion chromatography. The chemical structure and the degree of N-acetylation (DA) of the origin…
An easy method of fabricating superoleophobic surfaces on Al substrates by constructing reentrant structures is reported. The reentrant micro/nanometer-scale structures comprise micrometer-scale, rectangular-shaped, and step-like Al structures obtained by electrochemical etching and nanometer-scale Ag grains resulting…
A new single-phased white light-emitting phosphor, Y2WO6:Sm3+, was synthesized via conventional solid-state reaction calcining in air. The Y2WO6:Sm3+ samples were characterized using powder X-ray diffraction and refined with Rietveld methods. The phosphors exhibit a green emission from the host as well as a red emissi…