Materials Literature
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The release behavior of fluorescent dyes, oligo DNAs and spherical proteins from self-assembled organic nanotubes having 7-9 nm inner diameters has been studied in terms of novel nanocontainers with high-axial ratios. Both much smaller inner diameters and asymmetric inner and outer surfaces are characteristic of the n…
Ferrite (Co x Ni y Fe 3 - x - y O 4, x = 0.6, 0.3, 0.2, 0, y = 0, 0.6, 0.7, 0.8) nanoparticles monodispersed in nonpolar solvents have been prepared with different Co, Ni, and Fe compositions by heating mixtures of inorganic salts and sodium dodecylbenzenesulfonate (SDBS) in n -octanol. The as-prepared nanoparticles w…
This paper reports the development of a coating approach that simultaneously achieves the advantages of conductive spinel coatings and of rare earth (RE) surface treatment on ferritic stainless steels for solid oxide fuel cell (SOFC) interconnect applications. This approach involves the modification of spinel coatings…
Multiwall carbon nanotube (MWCNT)−β-cyclodextrin (β-CD) composites have been successfully synthesized through combining polymer wrapping and layer-by-layer self-assembly techniques. The obtained materials were characterized in detail by X-ray diffraction, thermogravimetric analysis−differential scanning calorimetry, s…
Porous p-Cu 2 O films were prepared on transparent conductive glass from a dispersion of Cu 2 O powder in ethanol.Upon illumination with a 100 W tungsten lamp, the photocurrent of the porous Cu 2 O film was appreciably greater when compared to electrodeposited Cu 2 O films.The enhancement is attributed to the increase…
The Cowpea chlorotic mottle virus (CCMV) was used as a size-constrained reaction vessel for the synthesis of Ti(IV) oxyhydroxide and TiO2.
New water-soluble paramagnetic Gd-containing cyano-bridged metallic coordination polymer nanoparticles with a chitosan shell show high nuclear relaxivity in acidic water which is up to six times higher than that of the actually used Gd-chelates.
BACKGROUND: The organic matrix contained in biominerals plays an important role in regulating mineralization and in determining biomineral properties. However, most components of biomineral matrices remain unknown at present. In sea urchin tooth, which is an important model for developmental biology and biomineralizat…
Photo-responsive gel droplets having nano- or pico-L volume that showed photo-induced gel-sol transition were successfully developed, for which the inter-droplet mass transport and the subsequent enzymatic reactions in the interior of the gel droplets were photo-triggered.
Microstructure evolutions of rapidly-solidified (RS) ribbon and conventionally cast bulk Mg-1 at%Zn-2 at%Y alloys have been studied by transmission electron microscopy (TEM), particularly focusing on formation process and phase stability of the long-period structures. It is found that there are significant differences…
Tungsten-based model alloys were fabricated to simulate compositional changes by neutron irradiation, performed in the JOYO fast test reactor. The irradiation damage range was 0.17–1.54 dpa and irradiation temperatures were 400, 500 and 750°C. After irradiation, microstructural observations and electrical resistivity…
Abstract Development of artificial collagens to replace the animal‐derived collagens presents a challenge in the formation of safer and functional biomaterials. We report here the development of collagen‐like gels by means of the self‐assembly of chemically synthesized peptides. The peptides are disulfide‐linked trime…
Five POM-based hybrid materials have been designed and synthesized based on different metal ions under hydrothermal conditions, namely, [Zn(Hfcz)(H(2)O)(3)](H(3)fcz)(SiMo(12)O(40)).3H(2)O (1), [Cd(2)(Hfcz)(6)(H(2)O)(2)](SiMo(12)O(40)).H(2)O (2), [Co(2)(Hfcz)(2)(SiW(12)O(40))](H(3)fcz)(2)(SiW(12)O(40)).10H(2)O (3), [Ni…
Silicon the material per excellence for electronics is not used for sourcing light due to the lack of efficient light emitters and lasers. In this review, after having introduced the basics on lasing, I will discuss the physical reasons why silicon is not a laser material and the approaches to make it lasing. I will s…
Fusarium oxysporum was grown in medium containing malt, yeast extracts and glucose on shaker at 25±1°C and180 rpm for 96 h. The mycelia were used to convert silver nitrate solution into nano-silver. The bioconversion was optimized through response surface methodology-central composite design .The factors wh…
Magnesium alloys are potential materials for use in biodegradable hard-tissue implants, but the fast degradation rate in a biological environment limits their applications. In order to improve the corrosion resistance, a dense, adhesive, and biocompatible bilayered coating is fabricated on AZ91 magnesium alloy by mean…
Pyrroles prepared by the reaction of alkyl isocyanoacetates with nitroalkenes or vinylsulfones (Barton-Zard reaction, BZ reaction) are useful for the synthesis of biologically active pyrroles, porphyrins, polypyrroles, and dipyrromethene dyes.This review covers recent development of the BZ reaction and its application…
Epitaxial graphene films have been formed on the C-face of semi-insulating 4H-SiC substrates by a high temperature sublimation process. Nanoscale square antidot arrays have been fabricated on these graphene films. At low temperatures, magnetoconductance in these films exhibits pronounced Aharonov-Bohm oscillations wit…
A task-specific ionic liquid containing a carboxylate group with the ability to dissolve metal oxide and organic ligands has been used as the solvent to prepare lanthanide complexes without the addition of extra solvent; thus a soft material with intense photoluminescence has been obtained by directly dissolving Eu(2)…
We report the syntheses of six new salts of the iron(III) complexes of four hexadentate Schiff bases of the saltrien-type derived from 1,8-diamino-3,6-diazaoctane and 2 equiv. of the appropriate salicylaldehyde derivative. Three of these new compounds undergo gradual spin-transitions centred between 155-204 K in the s…