Materials Literature
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Eu(2+) singly and Eu(2+), Mn(2+) co-doped Sr(2)Mg(3)P(4)O(15) exhibit not only the well known blue emission band of Eu(2+) peaking at 448 nm but also a new band at 399 nm in violet. They are attributed to Eu(2+) on different Sr(2+) sites. The Eu(2+) for the violet band can transfer energy to the red emitting Mn(2+) mo…
A series of photochromic organogelators based on dithienylcyclopentene amides with a phenylene unit as a bridge between the amide and long alkyl chain were synthesized, their gelation behaviors were characterized by rheology, FT-IR, 1H NMR, SEM, optical microscopy, UV-Vis and fluorescence spectroscopy. These organogel…
Highly regioregular poly{3-[n-(1-methylimidazolium-3-yl)alkyl]thiophene-2,5-diyl bromide} (n = 4, 6, 8) (10–12) has been prepared by reaction of poly[3-(n-bromoalkyl)thiophene-2,5-diyl] (n = 4, 6, 8) (7–9) with 1-methylimidazole. Acid-catalyzed hydrolysis and polycondensation of tetraethoxysilane (TEOS) were carried o…
Supertetrahedral compounds of chalcogenometalates (T3 cluster compounds) integrated with Ni-bpy (bpy = 2,2'-bipyridine) complex were prepared by a solvothermal technique. The compound [Ni(bpy)(3)](3)[H(4)In(10)S(20)]·bpy·2EG·6H(2)O (Mb-InS-1) (EG = ethylene glycol) consists of discrete T3 clusters of [H(4)In(10)S(20)]…
By direct precipitation in solution at room temperature, cerium benzendicarboxylate complexes with various morphologies have been obtained facilely for the first time. After calcination, CeO2 with large surface areas can be obtained, which inherited their parents' morphologies and exhibited better catalytic properties…
A mesoporous silica nanoparticle (MSN)-based pH-responsive nano drug delivery system (hydrophobic drugs@micelles@MSNs) is constructed by a one-pot self-assembly strategy, exhibiting improved drug efficacy against both drug-resistant and drug-sensitive cancer cells.
We present a generalization of the granocentric model proposed in [Clusel et al., Nature, 2009, 460, 611–615] that is capable of describing the local fluctuations inside not only polydisperse but also monodisperse packings of spheres. This minimal model does not take into account the relative particle positions, yet i…
Ordered titania nanotube (TNT) arrays were fabricated by anodization of titanium with a very fast voltage ramp speed. Co(OH)(2)/TNT nanocomposite was synthesized by cathodic deposition using the as-anodized TNT as the substrate. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy and X-ray…
We report a two-step general and viable approach for preparing a large area of high density and horizontally well-aligned arrays of zinc oxide nanowires (ZnO NWs) for the realization of Schottky device applications on inexpensive, flexible polymer substrate. A modified chemical vapor deposition (CVD) process is initia…
The micromechanisms related to ductile failure during dynamic loading of single crystal Cu are investigated using large-scale molecular dynamics (MD) simulations. Void nucleation, growth, and coalescence is studied for a single-crystal Cu system under conditions of impact of a shock piston with a velocity of 500 m/s.…
AbstractTensile tests were performed on specimens in the normalised and tempered condition to assess the effects of temperature (300 – 873 K) and strain rate (6.33×10−5 − 6.33×10−3 s−1) on tensile deformation and fracture behaviour of 9Cr – 1Mo ferritic steel. At all strain rates, the yield and ultimate tensile streng…
Using a zinc-oleate complex as an efficient self-templated precursor, we report the synthesis of ZnO nanowires and olive-shaped nanorods with growth directions along the (0001) planes via a mild hydrothermal route. As-obtained ZnO products were characterized by using X-ray powder diffraction, scanning electronic micro…
For a material for organic thin-film transistors, not only high mobility but also low threshold voltage and long-term stability are important requirements. In order to realize these properties, materials with relatively large oxidation potentials, namely weak donors, have been designed as p-channel organic semiconduct…
During the investigation, double-layered weft knitted fabrics for leisure sports were designed with physiological and thermal comfort in mind. Physiological comfort is determined by the state of the organism during physical activity, and thermal comfort is determined by the feeling of warmth/coldness and damp/dryness,…
We consider a stochastic partial differential equation with two logarithmic nonlinearities, two reflections at 1 and $-1$, and a constraint of conservation of the space average. The equation, driven by the derivative in space of a space-time white noise, contains a bi-Laplacian in the drift. The lack of a maximum prin…
Due to their potent free radical scavenging properties, cerium oxide (CeO 2 ) nanoparticles (nanoceria) are widely used as catalysts in industrial applications. However, given the prominent role of free radicals in the pathology of many human diseases, these nanoparticles are now being explored for therapeutic purpose…
In the wire bonding technique, a thin Au wire is interconnected with an Al layer on a Si chip. During energization heating at solid-state temperatures, however, brittle Au-Al compounds with high electrical resistivities are formed at the interconnection by the reactive diffusion between Au and Al. In order to examine…
Hexagonal rare earth carbonate hydroxides, RE(CO 3 )OH, where RE = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, and Er, were hydrothermally synthesized from formic acid and hydroxide gels of rare earth elements. The crystals exhibited bicephalous hexagonal prisms with lengths of several tens of micrometers. The crystal structu…
β-sialon (Si 6−z Al z O z N 8−z ):Eu 2+ phosphors with the oxygen concentrations as low as less than 1 wt% were synthesized by using the pure Si metal as the Si source. The oxygen concentrations could be controlled in the range of 0.3–0.7 wt%, which corresponds to the z value of 0.06–0.13 by using the mixtures of the…
Among different types of nanoparticles, carbon nanotubes have always been the subject of extensive studies. In the present study, the effect of concurrent presence of multi-walled carbon nanotubes (MWNT)s and nanoclay on the electrical and mechanical properties of an epoxy system was investigated using the ultrasonic…