Materials Literature
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A one-step method was developed to produce metal nanocomposites from metal alloys under ultrasound irradiation. Systematic investigation of ultrasound effects on various metal particles reveals cavitation-induced recrystallization and oxidation of metals as main factors in the process. The fact that different metals r…
Flexible superhydrophobic films are fabricated by thermally evaporating silver nanoparticles (Ag NPs) on the created flexible hemispheres arrays and modifying the Ag NPs surface with 1-dodecanethiol. The morphology of the generated biomimic film is similar to natural lotus leaves consisting of hierarchical micro/nano…
Silanes are commonly used as coupling agents to enhance the adhesion between polymeric and inorganic materials. Once silane hydrolysis has taken place, the condensation of the silane on the substrate surface should follow. Optimum hydrolysis conditions will depend on the type of silane and the process conditions of th…
Lanthanide complexes have unique chemical characteristics compared with typical organic complexes, and have recently attracted much interest because of the expanding need for new bioanalytical sensors. For example, magnetic resonance imaging (MRI) permits noninvasive three-dimensional imaging inside opaque organisms,…
Phthalocyanines are used as various applications, including as organic charge carriers in photocopiers, laser light absorbers in data storage systems, photoconductors in photovoltaic cells and electrochromic displays, and non-colored transparent film in visible region. The absorption maxima of phthalocyanines are best…
Gold nanoparticle (Au NP) solutions were synthesised by the Turkevich reduction method and stored in either the light or dark. All solutions were monitored daily using UV-visible absorption spectroscopy and displayed surface plasmon resonance (SPR), typical of Au nanoparticle colloids. An increase in SPR intensity, a…
By using paraffin liquid and oleic acid as the solvent and ligand, highly-fluorescent red to near-infrared (NIR)-emitting cadmium selenium telluride (CdSe1−xTex) alloyed quantum dots (QDs) with photoluminescence quantum yield (PLQY) up to 70% were successfully prepared. The as-prepared CdSe1−xTex QDs also demonstrated…
4-Triazolyl-dipicolinic acids, prepared efficiently by CuAAC, proved to act as efficient antennae for optical lanthanide probes containing Eu(3+) or Tb(3+), under linear and non linear excitations (one, two and three photons provided by laser induced luminescence). The versatility offered by the substitution of the tr…
Commercially available magnesium alloy AZ31 is extensively used in structural engineering components although, like many magnesium-based materials, it suffers from poor corrosion resistance, particularly in marine environments, which limit wider application. Previously, the ionic liquid (IL) trihexyl(tetradecyl)phosph…
The main pollution flashover faults occurred in power system in China and the harm of large-area pollution flashover are expounded.The measures against pollution flashover adopted by domestic power systems in different historical stages are summarized.It is pointed out that the measures against flashover,including ant…
Due to their unique characteristics, dendrimers have attracted a great deal of attention over the past few years. The reason why they are of eminent interest in drug-delivery applications is that they have uniform size, water solubility, modifiable surface functionality and available internal cavities. Moreover, the h…
This paper reports the use of MADIX/RAFT polymers to modulate the surface net charge of gold nanoparticles (AuNPs) with the aim of controlling their catalytic properties and their directed assembly on surfaces using AFM nanoxerography. A cationic polymer, poly[(3-acrylamidopropyl) trimethyl ammonium chloride], a pH-re…
A three-dimensional molecular theory is used to describe the effect of flow on the defects that arise around nanoparticles and nanodroplets suspended in a nematic liquid crystal. It is observed that flow displaces the Saturn ring line defect that forms around a nanoparticle at equilibrium in the upstream direction; it…
We describe herein an adsorption-induced energy transfer between phenanthrene, a major environmental pollutant, and a fluorescently labeled dendrimer acting as a host molecule. We find experimentally that such energy transfer is the most efficient at a solvent pH of 8 and for a phenanthrene:dendrimer molar ratio of 1:…
Impact of Gate Dielectric in Carrier Mobility in Low Temperature Chalcogenide Thin Film Transistors for Flexible Electronics, Salas-Villasenor, A. L., Mejia, I., Hovarth, J., Alshareef, H. N., Cha, D. K., Ramirez-Bon, R., Gnade, B. E., Quevedo-Lopez, M. A.
This work describes five novel aromatic polyamides and copolyamides containing the triazole heterocycle attached by an amine linkage to the main and lateral chains. The polyamides were found to be amorphous and soluble in polar aprotic solvents. They demonstrated a film-forming capability, exhibited good thermal resis…
Biodegradable extracellular matrices (ECMs) consisting of mechanically stable arrays of aligned poly(lactide) nanorods (nanorod diameter ≈ 200 nm; lattice constant ≈ 500 nm) with areas up to 9 cm2 were prepared by nondestructive extraction from recyclable self-ordered nanoporous alumina hard templates. Fibroblasts for…
Owing to their inherent tortuosity, the collective height of vertically aligned nanostructures does not equal the average length of the individual constituent nanostructures, and therefore temporal height measurement is not an accurate measure of the genuine growth kinetics. We use high-resolution spatial mapping of a…
We combine the fabrication of Au and Au/Ag core/shell nanorods (NRs), as well as experimental measurements of vis-NIR extinction, unpolarized, and cross-polarized light scattering spectra, with T-matrix and separation-of-variables simulations, to gain insight into the relation between the morphology/composition of nan…
Cerium oxide nanoparticles have a high thermodynamic affinity for oxygen and sulfur, which makes them useful in applications such as catalysts, solar cells, and gas sensors. In this study, we investigated the effects of intratracheal instillation of cerium oxide nanoparticles on the inflammatory responses in mice. The…