Nanoparticle assembly on nanoplates
By using dithiol linkage or biological interaction, Au nanoparticles are readily assembled on the single-crystalline Au nanoplates with well-defined geometries.
Materials Literature
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Concentration Behavior of Non-Metallic Impurities in Cu Rods Refined by Argon and Hydrogen Plasma-Arc Zone Melting
Removal of non-metallic impurities like O, N, C and S in 4N Cu rods by argon plasma-arc zone melting and hydrogen plasma-arc zone melting was investigated. The experimental results were discussed on the basis of thermodynamic estimation. Substantial removal of these impurities along the length of the Cu rods by argon…
Isomeric periodic mesoporous organosilicas with controllable properties
The synthesis procedure for isomeric periodic mesoporous organosilicas with E-configured ethenylene bridges was investigated using the homemade pure E-isomer of 1,2-bis(triethoxysilyl)ethene. The pH, aging temperature and the presence of cosolvents played a key role in obtaining well-ordered mesoporous materials with…
Phase behaviour in binary mixtures of ultrasoft repulsive particles
We investigate the phase behaviour of binary mixtures consisting of two ultrasoft species labeled 1 and 2, using the liquid-state theory and the classical density functional theory. The interaction potentials of the two species belong to different classes of ultrasoft potentials that display a dramatically different p…
Electrical and thermal properties of 10 mol% Gd3+ doped ceria electrolytes synthesized through citrate combustion technique
Nanocrystalline ceria electrolyte doped with 10 mol% gadolinia [Ce0.9Gd0.1O1.95] was synthesized by citric acid combustion technique involving mixtures of cerium nitrate oxidizer (O) and citric acid fuel (F) taken in the ratio of O/F=1. The as combusted precursors produced crystalline ceria particles upon calcination…
Zintl phase as dopant source in the flux synthesis of Ba1−xKxFe2As2 type superconductors
Use of the Zintl phase KSn as a source of potassium dopant in tin flux syntheses of Ba(1-x)K(x)Fe(2)As(2) allows for incorporation of large amounts of potassium with much less attack on reaction vessels compared to the use of elemental potassium as a reactant; it also enables further study of tin incorporation into th…
Suppressed conductance in a metallic graphene nanojunction
The linear conductance spectrum of a metallic graphene junction formed by interconnecting two gapless graphene nanoribbons is calculated. A strong conductance suppression appears in the vicinity of the Dirac point. We found that such a conductance suppression arises from the antiresonance effect associated with an edg…
Clear evidence of electron delocalization: synthesis, structure, magnetism, EPR and DFT calculation of the asymmetric hexanickel string complex containing a single mixed-valence (Ni2)3+ unit
This paper describes the physical properties of the (Ni(2))(3+) mixed-valence unit that is an excellent conductivity-enhanced tool for metal string complexes.
Mechanically functional amyloid fibrils in the adhesive of a marine invertebrate as revealed by Raman spectroscopy and atomic force microscopy
Amyloid fibrils are primarily known in a pathogenic context for their association with a wide range of debilitating human diseases. Here we show a marine invertebrate (Entobdella soleae) utilizes functional amyloid fibrils comparable to those of a unicellular prokaryote (Escherichia coli). Thioflavin-T binding and Ram…
One-step synthesis of functional chiral porous silica nanorods using an achiral surfactant
Functional chiral porous silica nanorods have been synthesized by a one-step process. In this process, self-assembly of achiral cetyltrimethylammonium bromide (CTAB) and co-condensation of tetraethoxysilane (TEOS) and 3-mercaptopropyltrimethoxysilane (MPTS) took place simultaneously in basic solution under static cond…
Controlled growth of novel hyper-branched nanostructures in nanoporous alumina membrane
This paper proposes a novel approach to fabricate hyper-branched anodic aluminium oxide (AAO) nanostructures with different branches on the vertically-aligned trunk and at the trunk terminal. Silver nanowires with different dimensional and multifunctional complexity have been prepared from this hyper-branched AAO temp…
Effect of submicron silicon carbide powder addition on the processing and strength of reaction-sintered mullite-silicon carbide composites
Mullite-silicon carbide composites were fabricated via a reaction sintering using SiC and alumina (Al2O3) powders. The mullite phase was in situ synthesized from the reaction between the oxidation-derived SiO2 and alumina. The effects of incorporating submicron (∼0.5 μm) SiC powder (in addition to the coarser (∼65 μm)…
Molecular recognition at the liquid–liquid interface of colloidal microcapsules
Dithiocarbamate chemistry is used as a crosslinking tool to fabricate FePt colloidal microcapsules which provide a versatile scaffold for "host-guest" recognition at the liquid-liquid interface.
Axle charge effects on photoinduced electron transfer processes in rotaxanes containing porphyrin and [60]fullerene
Two rotaxanes containing zinc porphyrin (ZnP) with crown ether and [60]fullerene (C(60)) with cationic and neutral axles are synthesized. Optimized structures calculated by molecular orbital methods indicate that the rotaxane with an ammonium cation in the center of the axle has a shorter distance between the C(60) an…
Tailored Polyethylene Nanocomposite Sealants: Broad-Range Peelable Heat-Seals Through Designed Filler/Polymer Interfaces
The heat sealing behavior of novel polyethylene-based nanocomposite films was investigated, as they relate to flexible packaging of fresh-cut vegetables, processed foods and biomedical devices. Appropriately designed sealant nanocomposites, which include dispersed montmorillonite nanofillers and ethyl vinyl acetate co…
Energy transfer processes in electronically coupled porphyrin hetero-dyads connected at the β position
Energy transfer in a series of hetero-dyads of zinc porphyrin and free-base porphyrin connected at the beta position by pi conjugated bridges has been determined. The dyads have been characterized and compared with the homo dyads, excellent models for the donor and the acceptor porphyrins in the electronically conjuga…
Double exponential growth of aliphatic polyamide dendrimers via AB2 hypermonomer strategy
We report for the first time a novel strategy for the synthesis of aliphatic polyamide dendrimers based on a hypermonomer () starting from allylamine.
Robust exponential attractors and convergence to equilibria fornon-isothermal Cahn-Hilliard equations with dynamic boundaryconditions
We consider a model of non-isothermal phaseseparation taking place in a confined container. The orderparameter $\phi $ is governed by a viscous or non-viscousCahn-Hilliard type equation which is coupled with a heat equationfor the temperature $\theta $. The former is subject to anonlinear dynamic boundary condition re…
Macroscopic single-crystal tubes assembled with porous supramolecular architecture of water-soluble calixarene and phenanthroline
Single-crystal tubular products on the millimetre scale have been synthesized from water-soluble calixarene and phenanthroline in the presence of lanthanides by a hydrothermal method, in which the extended structures contain some 1D infinite channels.
Initiation of Organized Nanopore/Nanotube Arrays in Titanium Oxide
In a series of two papers, a mechanism is proposed to describe the initiation of organized arrays of nanopores and nanotubes formed via anodization of titanium. Part I describes the mechanism of initiation, based on the instability of the planar oxide/electrolyte interface, and develops a criterion for the initiation…