Materials Literature
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Catalytic chemistry and catalyst design play key roles in achieving green sustainable chemistry, which strives for reductions in waste, energy, materials, risks and hazards, and costs. Our approach to green sustainable chemistry described here is the development of highly functionalized heterogeneous metal catalysts b…
Rare-earth-activated, white-emitting phosphors , were prepared under a weak reducing atmosphere by conventional solid-state reaction and their luminescence properties under excitation were investigated in detail. shows excitation at short-UV wavelength light . , showed optimal excitation at long-UV light excitation .…
A facile homogenous precipitation method has been developed for the synthesis of multifunctional, magnetic, luminescent nanocomposites with Fe(3)O(4) nanoparticles as the core and europium-doped yttrium oxide (Y(2)O(3):Eu) as the shell. The nanocomposites showed both super-paramagnetic behavior and unique europium flu…
A series of aminobenzoic acid crystals with stacking-induced emission properties has been achieved and the packing structures of the hydrogen-bonded acid dimers provided an explanation for the emission characteristics of the crystals.
Porous (LSC) electrodes having Sr composition (LSC-64) and (LSC-82) were fabricated on Sm-doped ceria electrolytes, and studied using electrochemical impedance spectroscopy between and . The faradaic portion of the impedance was found to exhibit Gerischer or Gerischer-like characteristics, indicating colimitation by k…
An energy upconversion system based on triplet-triplet annihilation exploiting an organic triplet sensitizer is devised and has achieved a white-light emission with a low power laser excitation.
We consider in this paper the stabilized semi-implicit (intime) scheme and the splitting scheme for the Allen-Cahn equation$\phi_t-\Delta\phi+$ε$^-2f(\phi)=0$ arising from phasetransitions in material science. For the stabilizedfirst-order scheme, we show that it is unconditionally stable andthe error bound depends on…
Manganese dioxide exhibits the ideal capacitive behavior in aqueous electrolytes containing alkaline-earth cations ( , , or ). A specific capacitance value as high as was obtained in electrolyte at . The ideal capacitive behavior, high specific capacitance, good coulombic efficiency, and rate ability of manganese diox…
In vitro studies with particles are a major staple of particle toxicology, generally used to investigate mechanisms and better understand the molecular events underlying cellular effects. However, there is ethical and financial pressure in nanotoxicology, the new sub-specialty of particle toxicology, to avoid using an…
Abstract—We review the research progress in reversed Cherenkov radiation in double-negative metamaterials (DNMs) starting from the first experimental verification of the DNMs reported in 2001, including theories, numerical computation and simulation and experiments. We also discuss the potential applications to partic…
Asymmetrical supercapacitors with aqueous electrolytes were fabricated from carbon nanotubes (CNTs) individually coated with and as the negative and positive electrodes, respectively. The nanocomposite is used as the negative electrode material in an asymmetrical supercapacitor. The physicochemical properties of the a…
Molecule-based spin-transportation coexisting systems that exhibit negative giant magnetoresistance and techniques for accessing these molecular systems are introduced as a basis for the construction of molecule-based spintronics.
Zwitterionic hydrogels, including poly(sulfobetaine methacrylate) (polySBMA) and poly(carboxybetaine methacrylate) (polyCBMA), and co-polymeric hydrogels of CBMA and 2-hydroxyethyl methacrylate (HEMA) (poly(CBMA-co-HEMA)) were prepared. Their in vitro and in vivo properties were evaluated and compared with those of po…
Non-spherical silica Janus colloids are prepared by asymmetric wet-etching at the Pickering emulsion interface, and a variety of non-spherical hybrid silica/PS Janus colloids are derived with tunable polymer volume fraction and morphology.
A novel gated photochromic compound Nap-Pip-DTE was prepared to mimic a soft gear-shift based on alternative UV/Vis irradiation, protonation/deprotonation and copper (II) ion complexation/dissociation. The fluorescence and absorption spectra were used as output signals. Copper (II) ion was introduced to mimic the park…
In this paper, we have reported a facile method for the synthesis of ordered magnetic core–manganese oxide shell nanostructures. The process included two steps. First, manganese ferrite nanoparticles were obtained through a solvothermal method. Then, the manganese ferrite nanoparticles were mixed directly with KMnO4 s…
The fluorescence sensing of amine vapor was largely enhanced upon using ultrathin nanofibers, which were fabricated from N-(1-hexylheptyl)perylene-3,4,9,10-tetracarboxyl-3,4-anhydride-9,10-imide by a new self-assembly approach.
Abstract—The design, simulation and fabrication of a left-handed metamaterial (LHM) structure is presented. The combination of the modified square rectangular Split Ring Resonator (SRR) and the Capacitance Loaded Strip (CLS) were used to obtain the negative value of permeability, µ and the negative permittivity, ε. Ni…
Pyrenyl-functionalized distyryl-Bodipy sensitizer attached non-covalently to SWNTs was shown to generate singlet oxygen when excited at 660 nm with a red LED array; this work emphasizes the potential of SWNT as a viable alternative carrier of bioactive agents, including photodynamic therapy sensitizers.
BACKGROUND: The silkworm, Bombyx mori, is an important insect in the textile industry and its pupa are used in Chinese cuisine and traditional Chinese medicine. The silk, urine and dander of silkworms is often the cause of allergies in sericulture workers and the pupa has been found to be a food allergen in China. Rec…