Materials Literature
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Abstract Oppositely charged nanoparticles precipitate rapidly only at the point of electroneutrality, wherein their charges are macroscopically compensated. We investigated the aggregation and precipitation of oppositely charged nanoparticles at concentrations ranging from 10 to 10−3 mm (based on gold atoms) by using…
The mechanism by which alkylamines brighten CdSe nanoparticles is investigated by transient absorption and time-resolved photoluminescence spectroscopy. The main effect of the amine is to reduce the extent of surface hole trapping, which cannot be rationalized by a model in which the amine directly binds to and thereb…
Nitric oxide (NO) is a celebrated signaling molecule involved in diverse vital physiological and pathophysiological processes. Thus, rapid detection of NO in situ is quite significant due to its large diffusion and short half-time. Herein, a new water-soluble conjugated polymer (PBFB-PDA-NMe 3 + ) with an o-diaminophe…
Fast transfer of photoinduced electrons and subsequent slow electron–hole recombination in semiconductor heterostructures give rise to long-lived charge separation which is highly desirable for photocatalysis and photovoltaic applications. As a type II heterostructure, CdS/TiO 2 nanocomposites extend the absorption ed…
Interlayer interactions at the heterointerfaces of van der Waals heterostructures (vdWHs), which consist of vertically stacked two-dimensional materials, play important roles in determining their properties. The interlayer interactions are tunable from noncoupling to strong coupling by controlling the twist angle betw…
The preparation of bimetallic nanoporous networks (BNNs) that combine the high surface area and thermal stability of inorganic nanostructures with the unique catalytic properties of bimetallic systems is highly desirable. Here we show a simple and highly versatile approach for synthesis of Pt–Re BNN and demonstrate th…
The synthesis of a threefold symmetric nanographene with 19 cata-fused benzene rings distributed within six branches is reported. This flat dendritic starphene, which is the largest unsubstituted cata-condensed PAH that has been obtained to date, was prepared in solution by means of a palladium-catalyzed aryne cyclotr…
Background: A wide use of Silver Nanoparticles (AgNPs) in consumer products, industry, pharmaceuticals, and medical sciences, including dermatology, has always caused concerns related to its adverse effects on the environment and human safety. Nano-sized particles can be uptaken by the body through various routes, esp…
The exploration of multifunctional electrode materials has been a hotspot for the development of high-performance supercapacitors. We have used carbon fiber plates recovered from construction waste to prepare high-quality flexible carbon fiber materials by pyrolysis of epoxy resin. The as-prepared recycled carbon fibe…
Eucalyptus bleached chemical pulp was fibrillated using a PFI pulp beater and ball mill method and was modified by acryloyl chloride. A novel porous cellulose-based hydrogel was prepared from the modified cellulose and acrylic acid for the removal of methylene blue (MB) from aqueous solution. The structure and morphol…
Synthesis and properties of new luminescent amphiphilic Tb(III) complexes [TbL3·2H2O]·3H2O, TbL3·bipy, [H3O][TbL4]·6H2O and [H3O][TbL′3L]·H2O, where HL is 1-phenyl-3-methyl-4-stearoylpyrazolone-5 and HL′ is 1-phenyl-3-methyl-4-formylpyrazolone-5, are reported. The complexes have been characterized by elemental and the…
Cerium oxide nanoparticles (CNPs) are potent radical scavengers protecting cells from oxidative insults, including ionizing radiation. Here we show that CNPs prevent X-ray-induced oxidative imbalance reducing DNA breaks on HaCat keratinocytes, nearly abating mutagenesis. At the same time, and in spite of the reduced d…
A systematic one-step one-pot multicomponent reaction of Co(ClO 4 ) 2 ·6H 2 O, H 3 L (2,6-bis((2-(2-hydroxyethylamino)ethylimino)methyl)-4-methylphenol), and readily available carboxylate salts (RCO 2 Na; R = CH 3, C 2 H 5 ) resulted in the two structurally novel coordination aggregates [Co II Co III 4 L 2 (μ 1,3 -O 2…
Tapered metallic nanostructures that harbor surface plasmons are highly interesting for nanophotonic applications because of their waveguiding and field-focusing properties. Here, we developed a focused optical field induced solution synthesis for unique crystallized silver nano-needles. Under the focused laser spot,…
ABSTRACT Nitrile rubber (NBR)/sliding graft copolymer (SGC) composites with significantly improved strength and damping property are successfully prepared. SGC is a novel kind of supramolecular material with sliding crosslink junctions. The micromorphology analyses of NBR/SGC composites indicate that the SGC phase wit…
Aqueous electrolytes can be used for electrical double-layer capacitors, pseudocapacitors, and intercalation-type batteries. These technologies may employ different electrode materials, most importantly high-surface-area nanoporous carbon, two-dimensional materials, and metal oxides. All of these materials also find m…
Abstract As a flavonoid, luteolin (LTL) has been universally studied due to its many advantages. Luteolin is a component in drugs and accurate detection is important to determine their LTL content and estimate their disposal effects. In our study, we found that the strong fluorescence of CDs made using ammonium citrat…
Abstract The oxygen reduction reaction (ORR), as one of the most critical but promising reactions for energy conversion, has attracted increasing research interest. Recent reports have evidenced that carbonization of heteroatoms doped porous organic polymers (POPs) is an effective approach toward highly efficient ORR…
Abstract The electronic structures of a variety of experimentally identified gold and silver nanoclusters from 20 to 246 atoms, either unprotected or protected by several types of ligands, are characterized by using point group specific symmetry analysis. The delocalized electron states around the HOMO?LUMO energy gap…
Abstract Electrical double‐layer capacitors (EDLCs) commonly denoted supercapacitors are rechargeable energy storage devices with excellent power and energy delivery metrics intermediate to conventional capacitors and batteries. High‐voltage aqueous electrolyte based EDLCs are particularly attractive due to their high…