Materials Literature
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Current environmental benign and flame retardant poly (vinyl acetate) (PVAc)/montmorillonite (MMT) clay nanocomposites were prepared by emulsifier free emulsion technique in microwave (MW) oven. MMT clay was incorporated as additional filler in PVAc/MMT nanocomposites to improve the homogeneity of the ‘physical’ barri…
We study the dynamics of focal conic domain (FCD) formation in a thermotropic smectic phase under shear stress. It is known that increasing the shear stress induces a non-equilibrium phase transition from a smectic phase with FCDs (SmAI) to another smectic phase (SmAII) in which the layers are oriented. By quenching t…
Highly dispersed uniform Ni particles ranging in size from 0.1 to 1.2 μm were synthesized by reducing nickel carbonate in polyols in the presence of dipentaerythritol (DPE) and noble metal salts. DPE was essential in preventing the aggregation of nickel particles, while the noble metal (‘seeding’ approach) effectively…
The simple and selective immobilisation of a thermostable DNA polymerase on mesoporous silicas was achieved, and DNA amplification activity was retained under the pore-size regulation of the mesoporous silicas.
The monodispersed PDDA-stabilized Au nanospheres can be coated with a thin silica shell assisted by UV light irradiation.
Water diffusion in a sandwich-structured composite film on a Mg-Gd-Y alloy was experimentally investigated using electrochemical impedance spectroscopy (EIS). The composite film contained an inner integration layer and an outer fluorocarbon (FC) layer. The integration layer was prepared by depositing an environment-fr…
A monodisperse Pt/ceria hybrid with controlled nanoporous structure was fabricated with the aid of poly(glycidyl methacrylate- <italic>co</italic> -ethylene glycol dimethacrylate) microspheres as a hard template.
Metal-free phthalocyanine 3 and its metallophthalocyanine derivatives 4, 5, and 6 (M = Zn, Co, and Ni) substituted with four 21-membered pentathiadiaza macrocycles were synthesized and their structures identified by elemental analysis, IR, ^1H NMR, mass, and UV-Vis spectroscopy techniques. The aggregation properties o…
Poly(2-allyl-6-methyl-1,4-phenylene-co-2,6-dimethyl-1,4-phenylene oxide)s (allyl-PPOs) were synthesized through oxidative coupling copolymerization of 2,6-dimethylphenol and 2-allyl-6-methylphenol in water. The copper(II)/ethylene diamine tetraacetic acid (Cu(II)/EDTA) complex catalyzed copolymerization was conducted…
Sn NPs with well-defined sizes in the range 20–100 nm have been synthesized using a chemical reduction route of metal acetylacetonate by a dimethylamine–borane Lewis complex.
Integrative and comparative analyses of biomaterials systems offer the potential to reveal conserved elements that are essential for mechanical function. The approach also affords the opportunity to identify variation in designs at multiple length scales, enabling the delineation of a range of parameters for creating…
Using methods which are applied for estimating strength and toughness of composites reduces rate of trial-and-error in their design. One of the mechanisms for strengthening and increasing toughness of composites is application of reinforcement pull-out mechanism. Interface strength of reinforcement with matrix and eff…
We have studied the interaction of H2 with Pt-Sn nanoalloys supported on Sn-Ce mixed oxide films of different composition by means of synchrotron radiation photoelectron spectroscopy and resonant photoemission spectroscopy. The model catalysts are prepared in a three step procedure that involves (i) the preparation of…
Deposition of Pd–Fe nanoparticles onto carbon spheres with controllable diameters and catalytic activity for CO oxidation.
Double-walled carbon nanotube (DWNT)-CdSe heterostructures with the individual nanoscale building blocks linked together by 4-aminothiophenol (4-ATP) have been successfully synthesized using two different and complementary routes, i.e. covalent attachment and non-covalent π-π stacking. Specifically, using a number of…
Tin dioxide (SnO2) and graphene are versatile materials that are vitally important for creating new functional and smart materials. A facile, simple and efficient ultrasonic-assisted hydrothermal synthesis approach has been developed to prepare graphene-SnO2 nanocomposites (GSNCs), including three samples with graphen…
Research in solar energy conversion and the associated photoactive materials has attracted continuous interest. Due to its proper electronic band structure, high quantum efficiency, and photonic and chemical innerness, TiO 2 has been demonstrated as a versatile oxide semiconductor capable of efficiently utilizing sunl…
The reduction of graphene oxide by Zn can also result in power-output for a Zn/GO primary cell.
Abstract Porphysomes are an emerging class of photonic nanoparticles formed from the self-assembly of porphyrin-lipid conjugates. They retain the multifunctional properties of their porphyrin building-blocks but also have unique properties emerging from the nanostructure itself. Porphysomes are able to act in a number…
An intestine-like nanoporous carbon was fabricated and used for size-selective separation of cytochrome c.