Materials Literature
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While Au nanocrystals (NCs) with a myriad of shapes have been successfully prepared with good uniformity and in high yield, Au right bipyramids (RBPs) with a single-twinned structure have been elusive. For the first time, we report a facile route for the synthesis of truncated Au RBPs with shape purity >90% and sizes…
We report lanthanide-based micelles integrating hypericin （Hyp） for X-ray- triggered photodynamic therapy （PDT）. The lanthanide luminescence induced by X-ray irradiation excites the photosensitizer, which leads to the generation of singlet oxygen. This versatile approach can be extended to other photosensitizers or ot…
The dielectric properties of polymorphic tungsten-bronzes, β-SrTa2O6 and β′-SrTa2O6, were measured using phase pure ceramic specimens. The room temperature dielectric constant (κ) of β-SrTa2O6 and β′-SrTa2O6 were ≈26 and ≈104, respectively, which were relatively constant over the ac frequency range, 102–106 Hz. The ma…
The present study reports zero-order controlled release drug-loaded nanofibers fabricated using a modified coaxial electrospinning,in which a 2%(weight/volume)dilute solution of polyacrylonitrile(PAN)was exploited as a sheath fluid.With PAN and acyclovir(ACY)as the filament-forming matrix and active pharmaceutical ing…
Making Drugs Safer: Improving Drug Delivery and Reducing Side-Effect of Drugs on the Human Biochemical System Abstract The Re-strategizing becomes inevitable when in trying to proffer solution to a problem damage in a different form is done. The unintended effects of drugs (side effects) could be leaving behind more d…
The thermal conductivities of quaternary Mg-Zn-Ca-Y alloys have been investigated by evaluating the effect of adding Y on the Mg-4Zn-0.5Ca alloys, with an emphasis on developing new Mg alloys without compromising their thermal conductivities, processabilities, and mechanical properties.In this study, to improve the me…
Paperboard is an environment-friendly multi-layer material widely used for packaging applications. However, for food packaging paperboard lacks essential barrier properties towards oxygen and water vapor. Conventional solutions to enhance these barrier properties (e.g. paperboard film coating with synthetic polymers)…
The geometric structural optimization, electronic band structure, total density of states for valence electrons, density of states for phonons, optical, dynamical, and thermodynamical features of cesium chloride have been investigated by linearized augmented plane wave method using the density functional theory under…
In this paper, we demonstrate a novel carbon nanotube (CNT) reinforced macroporous adsorption resin (MAR) for the first time. The CNTs were dispersed in water via sonication, and then in situ physically entrapped in the pores of MAR by capillary forces and sonication. The resulting CNT reinforced MAR (CNT-MAR) was pro…
The development of hybrid nanostructures in the nanocomposite significantly increases the air impermeability, electrical, and thermal conductivity. Interestingly, it bridges to increase the path of diffusion and conduction.
A novel polyamide 6 grafted ethylene-vinyl acetate rubber copolymer (EVM- <italic>g</italic> -PA6) was synthesized in the presence of graphene oxide (GO), <italic>via</italic> a sequential ring-opening polymerisation and ester–amide exchange reaction.
Hydrosilane enabled the formation of Pt nanoparticles and the silane functionalization of a carbon support material in one pot. The metal/Si-modified carbon composites are highly durable during catalytic methane oxidation.
A facile method to fabricate a mesoporous poly(ethylene- <italic>co</italic> -vinyl alcohol) (EVOH) monolith captured with silver nanoparticles (AgNPs) was developed.
Only in two of three crystal modifications the initial dye is subjected to the SC–SC [2 + 2]-photocycloaddtion under visible light irradiation.
Single-crystal diborate KSbOB2O5 has been prepared under a high temperature molten-salt method and its structure has been determined by single crystal X-ray diffraction analysis. The diffraction pattern shows strong main reflections and weak satellite reflections, clearly indicating a modulated structure. Using the fo…
The studies on bentic diatoms were conducted in 2009-2011 at eight samplings sites over the oynianka stream and its tributary, the Jagielnia. 427 diatom taxa were recorded in total. Achnanthidium minutissimum var. minutissimum, Aulacoseira ambigua, Fragilaria capucina var. capucina, Gomphonema parvlum, Navicula gregar…
Dark conglomerates of domains with opposite handedness, which are designated as dark conglomerate phases (DC phases), have attracted much attention. After designing an achiral liquid crystal trimer, 4,4′-bis{7-[4-(5-octyloxypyrimidin-2-yl)phenyloxy]heptyloxy}biphenyl (1), which exhibits only a nematic phase, we prepar…
We study optical transitions in CdSe quantum dots doped by Mn atoms. At low concentrations the transitions are spin-forbidden. Nevertheless, strong light absorption was experimentally found. To explain this effect we propose a new mechanism that includes two or more Mn atoms closely placed to each other containing the…
There is an optimum separation distance between light-emitting silicon quantum dots and a monolayer of nearly spherical gold nanoparticles to achieve a photoluminescence enhancement from the system.
Photoinduced electron transfer (ET) reaction between an anionic acceptor, coumarin-343 (C343), and a neutral donor, N,N-dimethylaniline (DMAN), has been investigated in composite supramolecular assemblies (mixed micelles) comprised of a pluronic copolymer (P123: EO20-PO70-EO20 or F88: EO103-PO39-EO103 where EO: ethyle…