Materials Literature
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Two Mn(II) coordination complexes with considerable difference in photochromism and chirality have been constructed from the photoactive 1-(4-carboxybenzyl)-4,4'-bipyridinium ligand upon adjusting the reaction solvents.
Nanoparticulate medicines offer the advantage of allowing delivery of large quantities of unmodified drug within the same particle. Nanoparticle uptake by cancer cells can, however, be compromised due to the large size and hydrophilicity of the particle. To circumvent cell penetration problems and simultaneously impro…
This study was carried out to evaluate the environmental application of modified and nonmodified carbon nanotubes through the experiment removal of chromium trivalent (III) from water. The aim was to find the optimal condition of the chromium (III) removal from water under different treatment conditions of pH, adsorbe…
In this work, a paramagnetic nanofibrous composite film was fabricated with poly lactide, hydroxyapatite and γ-Fe(2)0(3) nanoparticles using the electrospinning technique. The composite film significantly enhanced the proliferation, differentiation and ECM secretion of the osteoblast cells under a static magnetic fiel…
We review some recent research developments in coarse-grained modeling based on mean-field approaches of the equilibrium dispersion and structure of polymer nanoparticle composites. We focus on three issues: (i) dispersion and phase behavior of particles in homopolymer matrices; (ii) dispersion in mixtures of homopoly…
The stretch formability of a rolled Mg-1.5Zn-0.1Ca alloy sheet was investigated at room temperature. The Mg alloy showed a large Erichsen value of 8.2. This is due to a reduction in intensity of basal plane texture and a spreading of the basal poles towards the transverse direction. It is suggested that solid solution…
Powder X-ray diffraction (XRD) has been exploited to establish the structural properties of a porous interpenetrated mixed-ligand metal-organic framework material prepared by solid-state grinding, recognizing that product phases from mechanochemical synthesis are typically microcrystalline powders. The importance of s…
We present the synthesis of spherical silver nanopa rticles by simple and low cost chemical route. Well-dispersed silver nanoparticles were prepared b y reducing silver nitrate (AgNO 3 ) with glucose in presence of protective agent polyvinyl p yrrolidone (PVP). Sodium hydroxide was used to enhance the reaction velocit…
One of the approaches for obtaining magnetic resonance imaging (MRI) contrast agents with enhanced relaxivity is to construct macromolecular architectures with multiple Gd(III) centres. In some cases, simple grafting of Gd(III) chelates into polymeric backbones does not result in an increased relaxivity, due to high i…
The individual electrode processes from anode and cathode have been clearly identified from practical impedance spectra with high-frequency inductive impedances for the Mitsubishi segmented-in-series tubular solid oxide fuel cell by combining the distribution of relaxation time analysis and the complex nonlinear least…
The self-assembly of [Fe(III){B(pz)(4)}(CN)(3)](-) and [Co(II)(bik)(2)(S)(2)](2+) affords the diamagnetic cyanide-bridged [Fe(II)(LS)Co(III)(LS)](2) molecular square which is converted into the corresponding magnetic [Fe(III)(LS)Co(II)(HS)](2) species under light irradiation at relatively low temperatures.
Amminelithium borohydride, LiBH(4) x NH(3) which has two temperature sensitive chemical bonds N:-->Li(+) and N-H...H-B, is shown to release hydrogen at low temperatures by stabilizing the ammonia and promoting the recombination of the NH...HB bond.
Edge-functionalized graphite (EFG) is prepared via a "direct" covalent attachment of organic molecular wedges. The EFG is dispersed in N-methyl-2-pyrrolidone with a concentration as high as 0.27 mg mL(-1), leading to high-yield exfoliation of the three-dimensional graphite into two-dimensional graphene-like sheets.
A new class of heteroacenes containing B, N and S elements in the 22-electron aromatic nucleus has been synthesized by reaction of diaminoterthiophenes with dichlorophenylborane. Their structure was studied by X-ray crystallography and DFT calculations. UV-Vis absorption /emission spectroscopy shows high rigidity and…
This article analyzes and summarizes recent developments and newly emerging research fields related to thiol-capped CdTe nanocrystals, the most successful example of the colloidal quantum dots directly synthesized in aqueous solution. Progress in the synthesis and design of novel materials and functionalities, sophist…
A tetranuclear complex and a 1-D coordination polymer with a ladder-like topology have been obtained by connecting [Ni(II)Dy(III)] nodes with dicarboxylato ligands: [Ni₂(valpn)₂Dy₂(III)(pdca)₂(NO₃)(H₂O)₆](NO₃)·4H₂O 1, and (∞)¹[Ni₂(H₂O)₂(valpn)₂Dy₂(tfa)₃]·4CH₃CN 2 (valpn²⁻ = the dianion of the Schiff base resulting fro…
Sb2Te3 single-crystalline nanosheets having edge lengths of 300–500 nm and thicknesses of 50–70 nm were rapidly synthesized by a microwave-assisted method using SbCl3, Na2TeO3 and hydrazine hydrate in ethylene glycol at 200 °C for 15 min, and the reaction mechanism was proposed. The bulk sample of Sb2Te3 nanosheets wa…
Nitrogen-doped ordered mesoporous carbon was synthesized using SBA-15 as the template and polypyrrole as the nitrogen-containing carbon precursor. Transmission electron microscopy and N 2 Brunauer, Emmett, and Teller adsorption revealed a honeycomb-like ordered mesoporous structure with an average pore diameter of 3.3…
The rare earth orthochromites are extremely interesting due to the richness of their optical, dielectric, and magnetic properties as well as due to their multiferroic properties which make them suitable materials to study in the nanoregime. However, the wet-chemical synthesis of these materials in nanosize is nontrivi…
Photochromism is defined as a reversible transformation of a chemical species between two isomers upon photoirradiation. Although vast numbers of photochromic molecules have been so far reported, photochromic molecules which exhibit thermally irreversible photochromic reactivity are limited to a few examples. The ther…