Materials Literature
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Owing to concerns over the effects of the physicochemical properties of nanoparticles and their interaction with biological systems, further investigation is required. We investigated, for the first time, the toxicity of lipid-core nanocapsules (LNCs) containing a polymeric wall of poly(ε-caprolactone) and a coating o…
Tubular micrometer pore sized sieve type membranes with internal diameter of 14 mm and length of 60 mm containing uniform pores of diameter 10 and 20 μm were used to generate emulsions of sunflower oil dispersed in water and stabilized by Tween 20 using oscillatory flow of the continuous phase. Drop diameters between…
Supramolecular columnar assemblies are known to form intrinsic macrodipoles, which play an important role in intercolumnar interactions and govern the self-assembly on the mesoscale. A prominent class that provides this feature are trisamide derivatives, namely, 1,3,5-benzenetrisamides and 1,3,5-cyclohexanetrisamides.…
Abstract Organic coating approaches for corrosion protection with inherently conducting polymers have become important because of restriction on the use of heavy metals and chromates in coatings due to their environmental problems. The present work is directed towards the synthesis of polyaniline ( PANI ) and polyanil…
We study the solvent-annealing-induced nanowetting in templates using porous anodic aluminum oxide membranes. The morphology of polystyrene and poly(methyl methacrylate) nanostructures can be controlled, depending on whether the swollen polymers are in the partial or complete wetting regimes, which are characterized b…
The common two-step "hot-injection" methods are not suitable for reproducible production of core/shell quantum dots (QDs) at large scale for practical applications. Herein we develop a scalable, reproducible, and low-cost synthetic approach for high-quality core/shell QDs (CdS/Zn(x)Cd(1-x)S, CdSe/Zn(x)Cd(1-x)S, and Cd…
We report the synthesis of KNbO(3) nanowires (NWs) with a monoclinic phase, a phase not observed in bulk KNbO(3) materials. The monoclinic NWs can be synthesized via a hydrothermal method using metallic Nb as a precursor. The NWs are metastable, and thermal treatment at ∼450 °C changed the monoclinic phase into the or…
Abstract Cyclohexanone is an industrially important intermediate in the synthesis of materials such as nylon and polyamides, but direct selective hydrogenation of phenol to cyclohexanone under green conditions is a challenge owing to the over‐reduction of cyclohexanone to cyclohexanol. A catalyst made of palladium nan…
Abstract The so-called lotus effect has inspired the production of highly hydrophobic wood surfaces based on a two-step process consisting of growing nanofilms on the wood substrate (Chinese fir) with silica sol followed by hydrophobization with hydrolyzed hexadecyltrimethoxysilane (HDTMS). The microstructure and chem…
We report an interesting interaction between exfoliated graphene oxide (EGO), ionic liquid (IL) Aliquat-336 and hexavalent chromium. Graphene oxide was impregnated with the ionic liquid and the interaction primarily involves electrostatic affinity between the quaternary ammonium cation and surface hydroxyl groups in E…
We compare the molecular dynamics Green-Kubo and direct methods for calculating thermal conductivity κ, using as a test case crystalline silicon at temperatures T in the range 500-1000 K (classical regime). We pay careful attention to the convergence with respect to simulation size and duration and to the procedures u…
Metal photoluminescence (MPL) originates from radiative recombination of photoexcited core holes and conduction band electrons. In metal nanostructures, MPL is enhanced due to the surface plasmon local field effect. We identify another essential process in plasmon-assisted MPL-excitation of Auger plasmons by core hole…
We demonstrate the preparation of highly ordered and graphitic mesoporous carbon nitride with an ordered porous structure and a high nitrogen content (MCN-ATN) by a nano-hard-templating approach through a simple polymerization of 3-amino-1,2,4-triazine (ATN) inside the pore channels of a mesoporous silica template wit…
ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTFabrication, Optimization, and Use of Graphene Field Effect SensorsRory Stine†, Shawn P. Mulvaney‡, Jeremy T. Robinson§, Cy R. Tamanaha‡, and Paul E. Sheehan‡View Author Information† Nova Research, 1900 Elkins St. Suite 230, Alexandria, Virginia 22308, United States‡ Chemistr…
Abstract In this article, isothermal crystallization kinetic of the linear hydroxyl polyester urethane (PUR), as well as influence of amorphous silica nanofiller, was investigated. With the aim to investigate the influence of filler surface modification on the crystallization process of polyurethane matrix, nonmodifie…
In the current study, cell-free exudates of the ciliated protozoan Tetrahymena thermophila were shown to progressively convert silver nitrate to silver nanoparticles (Ag NPs) under illumination at ambient temperature. The formation of Ag NPs in the reaction mixture was evidenced by gradual colour changes, appearance o…
Window frame material has significant impact on the thermal performance of the window. Moreover, with sustainable design becoming a necessity, window frame materials need to have higher levels of environmental performance to be considered sustainable. As a result, a holistic performance metric is needed to assess wind…
We study spin effects of quantum wires formed in bilayer graphene by electrostatic confinement. With a proper choice of the confinement direction, we show that in the presence of magnetic field, spin orbit interaction induced by curvature, and intervalley scattering, bound states emerge that are helical. The localizat…
In this study, direct observation of the evolution of electronic structures across complex oxide interfaces has been revealed in the LaAlO(3)/SrTiO(3) model system using cross-sectional scanning tunneling microscopy and spectroscopy. The conduction and valence band structures across the LaAlO(3)/SrTiO(3) interface are…
The x Bi ( Zn 2/3 Nb 1/3 ) O 3 –(1− x )( K 0.5 Na 0.5 ) NbO 3 (abbreviated as x BZN –(1− x ) KNN ) ceramics have been synthesized using the conventional solid‐state sintering method. The phase structure, dielectric properties and “relaxorlike” behavior of the ceramics were investigated. The 0.03 BZN –0.97 KNN ceramics…