Materials Literature
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We demonstrate photocatalytic reduction of methylene blue in the infrared region, using PbSe/CdSe/CdS core/shell/shell heterostructure nanocrystals (HNCs) with type II or quasi-type II band offsets. Varying deposition rates of the CdS shell result in nanocrystals of diverse morphologies ranging from spheres to pyramid…
Annealing of MnO@SiO(2) nanospheres in a reducing gas environment resulted in the transformation of the core-shell structure into a hollow structure as a result of outward diffusion of MnO species into the thermodynamically more stable silicate phase. When the hollow silicate nanospheres were oxidized, the interior ca…
Redox polymer electrodes (RPEs) have been prepared both by attachment of random copolymers of hydroxybutyl methacrylate and vinylferrocene (poly(HBMA-co-VF)) to carbon substrates by grafting either "to" or "from" the substrate surfaces, and by impregnation of porous carbon substrates with redox polymer gels of similar…
A series of organic nonlinear optical (NLO) materials based on the stilbazolium derivatives of 4- N, N -dimethylamino-4′- N ′-methyl-stilbazolium tosylate (DAST) were synthesized, and the single crystals were grown from the solutions. Single-crystal structure determinations and Kurtz powder tests reveal that replaceme…
Abstract A series of magnesium benzylalkoxide complexes, [L n Mg(μ‐OBn)] 2 ( 1 – 14 ) supported by NNO‐tridentate pyrazolonate ligands with various electron withdrawing‐donating subsituents have been synthesized and characterized. X‐ray crystal structural studies revealed that Complexes 1 – 3 , 5 , 7 , 9 , and 10 are…
A unique procedure is developed to capture carbon nanotubes into closed virus-like protein cages with a controllable shell. The cross-linked shell varies in thickness within ≈10(0) -10(2) nm, and can be entirely removed by enzyme degradation. The cytotoxicity is entirely suppressed, but can be promoted again by enzyme…
Melt-grown bulk In2O3 single crystals were utilized for systematic heat-treatment experiments, which we performed at temperatures of 200–1400 °C, for 2–300 h and in eight different atmospheres, from oxidizing through vacuum to reducing atmospheres. We found that melt-grown In2O3 single crystals are chemically stable u…
The gelatin was added into pullulan films to improve their performances and lower their cost. The gelatin addition raised the tensile strength of the gelatin-pullulan composite films, and reduced the oxygen permeability. The cost of composite films was reduced comparing to that of the pullulan films. Moreover, the mol…
α-Si3N4 nanobelts were grown on a graphitic carbon felt via an improved Ni-catalyzed chemical vapor deposition (CVD) process. The as-prepared nanobelts were up to several millimeters long and 300–1200 nm wide exhibiting a unimodal diameter distribution with peak range at 500–600 nm. Ni originally mixed with Si partial…
Calcium borate nanoparticles have been synthesized by a thermal treatment method via facile co-precipitation. Differences of annealing temperature and annealing time and their effects on crystal structure, particle size, size distribution and thermal stability of nanoparticles were investigated. The formation of calci…
Graphene as an emerging electronic material is reviewed by Xiangfeng Duan and co-workers on page 5782. The inside cover shows an artistic representation of a p–n junction (red to blue) and delocalized electron clouds in rippled graphene, an atomically thin membrane of carbon with exceptional electronic properties.
In this study, composites were produced using alkali-treated kenaf fibre and recycled polypropylene to improve the interfacial bonding between them. Maleic anhydride grafted polypropylene was used at a ratio of 1:10 to the fibre as a coupling agent. Blends are mixed together by means of a twin screw extruder and test…
This Article deals with the toxicological study of synthesized CdO nanoparticles (NPs) on Escherichia coli . Characterization of the CdO NPs was done by DLS, XRD, TEM, and AFM studies, and the average size of NPs was revealed as 22 ± 3 nm. The NPs showed bactericidal activity against E. coli. When NPs were added at mi…
A superhydrophobic coating composed of silver nanoparticles was developed on copper from fluorinated multilayered polyelectrolyte films to examine its performance in preventing microbial adhesion. Antibacterial and antibiofouling experiments for this novel coating were conducted with SRB. From the disk diffusion tests…
Inverted hybrid solar cells with high power conversion efficiency are fabricated from an aqueous poly(1,4-naphthalene vinylene) (PNV) precursor and CdTe nanocrystals (NCs). TiO2 and MoO3 are selected as the electron transport layer and hole transport layer, respectively, resulting in efficiencies that are comparable t…
A great number of nano/microscaled morphologies have recently been prepared during the oxidation of aniline. At the early stage of oxidation, aniline oligomers are obtained, often in spectacular morphologies depending on reaction conditions. Herein, the flower-like hierarchical architectures assembled from aniline oli…
Hyperspectral microscopy is a versatile method for simultaneous spatial and spectroscopic characterization of nonfluorescent samples. Here we present a hyperspectral darkfield imaging system for spectral imaging of single nanoparticles over an area of 150 × 150 μm(2) and at illumination intensities compatible with liv…
The unimolecular decomposition of 2,5-dimethylfuran (DMF), a promising next-generation biofuel, was studied at the CBS-QB3 level of theory. As most of its decomposition routes remain unknown, a large number of pathways were explored: initial C-H bond fission, biradical ring opening, H-atom and CH(3)-group transfers in…
The photograph shows a polymer reflector that mimics the colour and underlying molecular structure of a golden beetle. It is formed from self-organizing layers of photopolymerised liquid crystal. These require an aligning layer, but we show that a layer of the material can be used as to self-align subsequent coatings,…
Terephthalate-intercalated nickel-aluminum layered double hydroxides (LDHs) were prepared by a co-precipitation method, with nominal x values in the general formula Ni((1-x))Al(x)(OH)(2)(C(8)H(4)O(4))(x/2) in the range 0.3-0.8. The materials were characterized by X-ray diffraction, X-ray fluorescence spectroscopy, CHN…