Materials Literature
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This paper reports a novel method of fabricating gum arabic coated gold nanoparticles (GA-GNPs) synthesised in a deep eutectic solvent (DES) for use as a new X-ray contrast agent. GA-GNPs were prepared simply by mixing a solution of 0.01% DES, GA and tetra chloroauric (III) acid at room temperature. DES was prepared u…
Abstract The combination of nonsolvent‐induced phase separation and the self‐assembly of block copolymers can lead to asymmetric membranes with a thin highly ordered isoporous skin layer. The effective pore size of such membranes is usually larger than 15 nm. We reduced the pore size of these membranes by electroless…
${\mathrm{BaTiO}}_{3}$ ultrathin films (thickness $\ensuremath{\approx}1.6$ nm) with in- and out-of-plane polarization are studied by first-principles calculations. Out-of-plane polarization is simulated using the method proposed by Shimada et al. [Phys. Rev. B 81, 144116 (2010)], which consists in building a supercel…
TCNQ molecules are used as a sensitive probe for the Kondo response of the electron gas of a nanostructured graphene grown on Ru(0001) presenting a moiré pattern. All adsorbed molecules acquired an extra electron by charge transfer from the substrate, but only those adsorbed in the FCC-Top areas of the moiré show magn…
Three different nanosensors with core-shell structures were fabricated by molecular self-assembly and evaporation techniques. Such closely packed nanoparticles exhibit fine optical properties which are useful for biochemical sensing. The refractive index sensitivity (RIS) of nanosensors was detected by varying the ref…
ABSTRACT In this manuscript, a toughened PLA/nanosilica composite with good storage stability was obtained in the presence of the epoxidized soybean oil (ESO). The composite was fabricated via a twin‐screw extruder, and characterized by the FTIR, selective distribution test, and SEM. The surface of nanosilica was modi…
Abstract Platinum nanoclusters highly dispersed on γ‐alumina are widely used as heterogeneous catalysts. To understand the chemical interplay between the Pt nanoparticles, the support, and the reductive atmosphere, we performed X‐ray absorption near edge structure (XANES) in situ experiments recorded in high energy re…
Recently, methotrexate (MTX) has been used to target to folate (FA) receptor-overexpressing cancer cells for targeted drug delivery. However, the systematic evaluation of MTX as a Janus-like agent has not been reported before. Here, we explored the validity of using MTX playing an early-phase cancer-specific targeting…
Zinc selenide (ZnSe) nano particles were synthesised by chemical route at 205°C and it was confirmed by powder X-ray diffraction analysis. Utilizing the synthesised nano particles as the source material, ZnSe thin films were deposited at various substrate temperatures (Room Temperature (RT), 150°C, 250°C, 350°C and 45…
The discrimination of Cr(III) and Cr(VI) is considered as one of the important analytical issues for environmental protection and disease prevention, because Cr(III) and Cr(VI) have different physiological effects and toxicities. Low cost, highly sensitive fluorescent sensors are highly demanded. Herein we report a fa…
Microbatteries are currently the best choice to power microelecronic devices. To maximize both energy density and power density of microbatteries within the areal footprint, the three-dimensional (3D) microbattery architectures have been proposed, comprising a 3D matrix of components (cathode, anode and electrolyte) a…
The immobilization of the hydrophilic low molecular-weight cationic molecules rhodamine 6G, methylene blue, and citidine in nanoparticles composed of two opposite charged polyelectrolytes, poly(sodium 4-styrenesulfonate) and chitosan, is studied, and the results correlated with their physicochemical properties. Nanopa…
A green-emitting nitride phosphor Ca1.4Al2.8Si9.2N16:Ce3+, Li+ (CASN:Ce) has been successfully synthesized which is applicable to near-ultraviolet based light-emitting diodes (LEDs) and field emission displays (FEDs). The characteristic photoluminescence (PL) properties were studied in detail by PL excitation, emissio…
A newly synthesized robust (salen)Mn( iii ) monolayer on glass bead substrates provides an active catalyst for asymmetric epoxidation of 6-cyano-2,2-dimethylchromene, cis -β-ethylstyrene, 1,2-dihydronaphthalene and indene.
Abstract Two complementary one‐pot, three component synthetic strategies based on copper(I)‐catalyzed azide–alkyne cycloadditions (CuAAC) have been developed, which allow the efficient assembly of glycosyl‐derived alkynes or azides with highly fluorescent boron–dipyrromethene (BODIPY) cores containing azido or alkyne…
The physisorption of water on graphene is investigated with the hybrid density functional theory (DFT)-functional B3LYP combined with empirical corrections, using moderate-sized basis sets such as 6-31G(d). This setup allows to model the interaction of water with graphene going beyond the quality of classical or semic…
The covalent attachment of a carbazole fluorophore to an oxazine photochrome permits the reversible activation of fluorescence under optical control. Ultraviolet irradiation with a pulsed laser opens the oxazine ring to shift bathochromically the absorption of the carbazole component. Concomitant visible illumination…
Shape-selective TiO2 nanomaterials with different morphology, namely wire-like, flake-like and flower-like, have been synthesized by utilizing a simple wet chemical route by the reaction of titanium isopropoxide with ethanol and water mixture in the presence of cetyltrimethylammonium bromide. The shape of the particle…
Abstract Nanostructured supports with tubular morphologies can impose one dimensional external constraints to supported metal nanoparticles affording small sizes (<2 nm) with high dispersion. Specifically, the curvature and chemical environment of the external nanotube surface appears to play a key role in determining…
The self-assembled gelation of an amino-acid-based low molecular weight gelator having a pyrene moiety at the N terminus and a bis-ethyleneoxy unit linked with succinic acid at the C terminus is reported. This amphiphile is capable of gelating binary mixtures (1/3 v/v) of CH3CN/water, DMSO/water, and DMF/water, and th…