Materials Literature
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ABSTRACT Montmorillonite was modified with N,N′‐dimethyl‐N‐dodecyl methacryloxylethyl ammonium bromide (DMAEA–DB), and cetyl trimethyl ammonium bromide (CTAB) as the intercalation agent. Then, a series of different types of superabsorbent composites based on the monomers acrylic acid (AA), acrylamide (AM), and organic…
Abstract Fluorine-incorporated hydrogenated fullerene-like nanostructure amorphous carbon films (F-FLC) were synthesized by employing the direct current plasma enhanced chemical vapor deposition (dc-PECVD) technique using a mixture of methane (CH 4 ), tetra-fluoromethane (CF 4 ), and hydrogen (H 2 ) as the working gas…
In this paper we report how dielectric spectroscopy can help in creating of dual-frequency nematic liquid crystals. Dual-frequency nematic liquid crystals is new class of liquid crystal materials. Such mixture is usually formed by a combination of many components (even more than 10), which can be split into two groups…
A novel and convenient synthetic method for the preparation of α,ω-bis(2,6-dimethylphenol)-poly(2,6-dimethyl-1,4-phenylene oxide) (PPO-2OH) oligomer in water is presented. It is based on the oxidative copolymerization of 2,6-dimethylphenol (DMP) and aromatic diols in the presence of Cu-ethylene diamine tetraacetic aci…
Genes encoding 3-hydroxybutyrate oligomer hydrolase (PhaZc) and 3-hydroxybutyrate dehydrogenase (Hbd) were isolated from Paracoccus denitrificans. PhaZc and Hbd were overproduced as His-tagged proteins in Escherichia coli and purified by affinity and gel filtration chromatography. Purified His-tagged proteins had mole…
In this study, the regulator MalR (Saci_1161) of the TrmB family from Sulfolobus acidocaldarius was identified and was shown to be involved in transcriptional control of the maltose regulon (Saci_1660 to Saci_1666), including the ABC transporter (malEFGK), α-amylase (amyA), and α-glycosidase (malA). The ΔmalR deletion…
A new strategy to prepare core/shell Janus photonic crystal (PC) microspheres with reversible optical spectrum property is demonstrated. The microfluidic technique was employed to generate the uniform core/shell PC microspheres containing nanogels aqueous suspension. Under centrifugal force, the nanogel particles homo…
The hard template approach for preparing porous materials allows one to be able to control pore size and particle morphology. However, the cost of this method is a crucial factor for mass production. In this work, commercially available low-cost hydrophobic CaCO3 spheres (HCS) of different particle sizes were used as…
Biosynthesis of metal nanoparticles using microorganisms is an important area of research in nanobiotechnology, which is an emerging eco-friendly science of well-defined sizes, shapes and controlled monodispersity. The present study proposed a green process for the extracellular production of silver (Ag) and gold (Au)…
Agricultural mulch film of poly(lactic acid) (PLA) has been prepared under industrial conditions by the extrusion blown film method with modified properties using poly(hydroxibutyrate) (PHB) and reactive compatibilizer maleic anhydride (MA). Processing parameters and blend composition have been optimized based upon pr…
This study deals with the fabrication of composite matrix from saw dust (SD) and recycled polyethylene terephthalate (PET) at different ratio (w/w) by flat-pressed method. The wood plastic composites (WPCs) were made with a thickness of 6 mm after mixing the saw dust and PET in a rotary type blender followed by flat p…
We demonstrated that chemical vapor deposition of graphene on Cu films strongly enhances their thermal diffusivity and thermal conductivity. Deposition of graphene increases the thermal conductivity of 9 micrometer (25 micrometer) thick Cu films by up to 24% (16%) near room temperature. Interestingly, the observed imp…
Department of Physics, Maulana Azad National Institute of Technology (MANIT), Bhopal 462051, IndiaUsing first principle calculations we have explored the structural and electronic properties of silicene(silicon analogue of graphene) and germanene (germanium analogue of graphene). The structuraloptimization reveals that…
The (Ca,R)FeAs2 (R=La,Pr and etc.) superconductors with a signature of superconductivity transition above 40 K possess a new kind of block layers that consist of zig-zag As chains. In this paper, we report the electronic structure of the new (Ca,La)FeAs2 superconductor investigated by both band structure calculations…
The structural characterization of sol-gel based nano crystalline ZnO material is being reported as we observe several previously unreported structural aspects following a sequence of annealing stages. As-grown samples were characterised by Fourier Transform Infrared Spectroscopy (FTIR). Chemical purity of the nano-gr…
ITO thin films were deposited on glass substrates by d.c. magnetron sputtering with varied oxygen flow rates. It was found that the optical absorption decreases and optical absorption edge has blue shifts with the increasing oxygen flow rate. Oxygen vacancy concentration was characterized and analyzed by XPS. It is sh…
In this study, a novel nanocomposite based on polyaniline/polyvinyl alcohol/Ag (PANI/PVA/Ag) has been successfully synthesized. The chemical reduction method was used to produce Ag nanoparticle colloidal solution from Ag+ ions. The polymerization of aniline occurred in situ for the preparation of polyaniline (PANI) in…
The paper presents the review of AC susceptibility measurements in study of magnetic phase transitions and spin dynamics. Examples of several types of phase transitions in conventional and molecular magnets are shown. The phenomenon of magnetic relaxation is briey ascribed and illustrated with results on relaxation in…
Water insoluble polymers can be converted into aqueous dispersions by emulsion polymerization, emulsion solvent evaporation, phase inversion, or solvent change method.
We discuss the design of a KEK test machine for Mo isotope separation based on the ion cyclotron resonance plasma separation process (KEK-ICR-PSP). The test machine consists of a superconducting magnet of 1.5 T, an Ar sputtering plasma chamber, a helical coil of 30-cm-diameter and 60 cm length, providing an ICR heatin…