Materials Literature
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New bromine-containing oxyphenylimides are synthesized by the Diels–Alder condensation from commercial products. The effect of the bromination of oxyphenylimides on their thermal behavior as comparing with the thermal stability of polystyrene in air is assessed by dynamic thermogravimetric analysis and differential sc…
The magnetic structure of the high temperature superconductor Gd1–xThxFeAsO (x = 0, 0.25) has been determined by neutron powder diffraction. The Gd moments were found to order at TN ∼ 4 K and to lie in the basal plane, and form alternating ferromagnetic sheets along the c-axis. The orientation of the gadolinium moment…
Branched copolymers Dextran-graft-Polyacrylamide (D-g-PAA) with star-like architecture of macromolecules and linear Polyacrylamide (PAA) were used for in situ synthesis of Ag nanoparticles. Aqueous silver colloids were characterized by UV-vis spectroscopy, TEM and dynamic light scattering. The internal structure of po…
ABSTRACT Graphene‐supported carbon‐coating cobalt and carbon nanoshells (Co/C‐GNS and CNS‐GNS) were fabricated and their applications in absorbing toxic gases and smoke have been investigated. Co 3 O 4 ‐loaded reduced graphite oxide was first prepared via a coprecipitation process, then carbon coatings on cobalt nanop…
A series of mesogenic compounds consisting of 6-amino-1,3-dimethyluracil and 4′-(alkyloxy)biphenyl-4-carboxylate interlinked by iminophenylcarboxylate was synthesised. The molecular structures of these compounds were substantiated by FT-IR, 1H NMR and 13C NMR along with elemental analysis. The mesomorphic properties w…
The scandium triflate-catalyzed cycloaddition reaction of polycyclic 1,2-dithiolethiones to maleimides is described. The reaction constitutes an easy approach to linear as well as branched oligomeric cis-fused dihydro[1,3]dithiolo[4,5-c]pyrrole-4,6-dione rings interconnected by 3,5-diylidenethiomorpholine-2,6-dithione…
A combinatorial methodology, developed for the rapid optimisation of sputtered transparent conducting oxides, was applied to Si doped ZnO. A wide range of compositions have been explored over a single sample to determine an optimum composition, with respect to the minimisation of resistivity, of x = 0.65% wt. SiO2. A…
Magnetic nanoparticles (NPs) of magnetite and Ni–Zn ferrites, synthesized by the forced hydrolysis in a polyol method, were used as the starting material to consolidate them by means of the spark plasma sintering (SPS) method. The microstructural changes were analyzed by X‐ray diffraction, transmission electron micros…
The synergistic effect of self-assembled carbon nanofiber (CNF) nanopaper and the multi-layered interface on the electrical properties and electro-activated recovery behavior of shape memory polymer (SMP) nanocomposites is investigated. The CNFs were self-assembled by deposition into sheets of multi-layered nanopaper…
ABSTRACT The fabrication of a biomaterial scaffold, with adequate physical and structural properties for tissue engineering applications, is reported. A blend of starch with ethylene‐vinyl alcohol (50/50 w/w, SEVA‐C) is used to produce 3D fibre‐mesh scaffolds by wet‐spinning. The scaffolds are characterized in terms o…
A weak association between osmolytes and dihydrofolate (DHF) decreases the affinity of the substrate for the Escherichia coli chromosomal and R67 plasmid dihydrofolate reductase (DHFR) enzymes. To test whether the osmolyte-DHF association also interferes with binding of DHF to FolM, an E. coli enzyme that possesses we…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation D. Gilks, L. Lari, K. Matsuzaki, H. Hosono, T. Susaki, V. K. Lazarov; Structural study of Fe3O4(1…
We investigate the morphologies of block copolymers confined in the region between two concentric and charged cylinders. The relative stability of a concentric lamellar phase compared to one where the lamellae are oriented in the radial direction is determined from the competition between long-range elastic and electr…
To improve the fuel efficiency of automobile internal combustion engines, the friction reduction of each engine moving part is important. Recently, carbon films have been attracting much interest as surface-coating materials due to its excellent properties such as low friction and good wear resistance. In this study,…
Kohn-Sham density functional theory is in principle an exact formulation of quantum mechanical electronic structure theory, but in practice we have to rely on approximate exchange-correlation (xc) functionals. The objective of our work has been to design an xc functional with broad accuracy across as wide an expanse o…
Novel Eu(III) complex with 2-methyl-5-phenylpentene-1-dione-3,5, metallopolymer based on and copolymer with N-vinylcarbazole were obtained. The kinetics of polymerization was studed by dilatometric method. The complex and metallopolymer were investigated and characterized by a number of physicochemical methods. The ob…
In this work, CuTPyP (TPyP = 5,10,15,20-tetrapyridylporphine) single crystalline 2D nanoplates and 3D polyhedra of nano-octahedrons and microspindles can be selectively obtained by changing the type as well as the concentration of the surfactant via a simple surfactant-assisted chemical solution method at room tempera…
The microstructure and chemistry of SmCo2Fe2B melt-spun alloy after multistage annealing was investigated using high resolution transmission electron microscopy (HRTEM) and 3D atom probe tomography. The multistage annealing resulted in an increase in both the coercivity and magnetization. The presence of Sm(Co,Fe)4B (…
The role of fine microstructure of AZ31B magnesium alloy metallic samples on the morphology, corrosion and wear resistance of the coatings formed by microarc oxidation technique was investigated. Surface nanocrystallisation was carried out through surface mechanical attrition treatment, and a nanocrystalline surface w…
We propose a microscopic model in order to study the multiferroic properties of Cu2OSeO3 taking into account the ferrimagnetic interaction, frustration, linear magnetoelectric (ME) coupling, and anharmonic spin-phonon interaction. We have shown that the dielectric constant and the phonon energy and damping have a kink…