Materials Literature
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4 Abstract: Methanol and aqueous extract of leaves of Calotropis procera Linn. were subjected to the potential antioxidant and antibacterial activities. The antioxidant potential of the methanolic extract was determined on the basis of their scavenging activity of the stable 1,1-diphenyl-2-picryl hydrazyl (DPPH) free…
BACKGROUND: Angiogenesis is a critical early feature of atherosclerotic plaque development and may also feature prominently in the pathogenesis of aortic valve stenosis. It has been shown that MRI can detect and quantify specific molecules of interest expressed in cardiovascular disease and cancer by measuring the uni…
Flexible porous nanoflake films were prepared by galvanostatic electrodeposition on lightweight and inexpensive stainless steel mesh. The as-prepared porous nanoflake films were characterized by X-ray diffraction, thermogravimetric analysis, and scanning electron microscopy. Electrochemical tests including cyclic volt…
Nephrogenic fibrosing dermopathy/nephrogenic systemic fibrosis (NFD/NSF) is a recently recognized systemic fibrosing disorder that develops in the context of renal insufficiency. Its predominant manifestation is severe cutaneous fibrosis, often causing disabling contractures of neighboring joints. No therapy is consis…
Carbonaceous polymer networks with tunable porosity were found to behave as exceptional adsorbents toward large organic molecules such as organic dyes.
The past decade has seen an emerging interest in the design and synthesis of ever more complex, hierarchically branched polymers – often described as dendritically branched polymers. In part, this has been driven by the long-established desire of both the polymer academic and industrial (production and process) commun…
Zn–Al hydrotalcite-like compounds intercalated by 1,3,6,8-pyrenetetrasulfonate (PTS), 1-pyrenesulfonate (PS) and 1-pyrenecarboxylate (PC) anions were synthesised by an ion-exchange procedure. The materials were characterised by powder X-ray diffraction at different temperatures, thermogravimetric analysis, FTIR, 13C{1…
On the basis of a thorough Cambridge Structural Database survey, we present a statistical analysis of the packing of TCNQ anion pi-radicals in TCNQ charge transfer salts, which reveals three packing motifs between neighboring TCNQs: one with a zero longitudinal offset and an approximate 1 A transversal offset, another…
To fabricate the energy storage ceramics with large sizes for pulsed power transmission line, the densification behavior and dielectric properties of Ba0.3Sr0.7TiO3 with 0-8 mass% BaO-Al2O3-B2O3-SiO2 glass additive were investigated. With increasing glass content, both the densification temperature and densification r…
This study was carried out to examine reduction mechanism of CaO and to investigate behaviors of CaO in pure Mg in terms of microstructure, oxidation resistance and phase formation. Pure Mg was used instead of Mg alloys to minimize the effects of other elements. With respect to CaO content, microstructures of the allo…
Aqueous solutions of the polyoxometallate alpha-PW(12)O(40)(3-) Keggin anion "PW(3-)" have been simulated by molecular dynamics, comparing two anion concentrations (0.06 and ca. 0.15 mol l(-1)) and Cs(+), NBu(4)(+), UO(2)(2+), Eu(3+), H(3)O(+) and H(5)O(2)(+) as neutralizing M(n+) counterions. They reveal marked count…
This study compares the electrical transport and the oxygen exchange properties of two mixed conducting materials between 600 and , namely (LSCF) and (BSCF). Both materials were synthesized by spray pyrolysis and characterized by the electrical conductivity relaxation technique. LSCF has the higher electrical conducti…
Measurement of the elemental composition of materials is a relatively mature art. In the natural world there are 92 elements with methods for their quantitative determination generally well established and, in many cases, the subject of internationally accepted standards. However, the physical prope...
Tailoring the electronic properties of single-walled carbon nanotubes by chemical modification through incorporation of heteroatoms within the tube walls represents a key method for the applicability of these structures in semiconductor technology. For p-type doping experimental studies on the synthesis of B doped sin…
This study demonstrates the effect of the solution pH on the polymorphic outcome of glycine by evaporation-driven crystallization from aqueous solution. More than 2000 solution droplets under identical conditions were generated using a patterned self-assembled monolayers (SAMs) substrate. Each droplet on the substrate…
A tailor made squaraine dye upon binding with Ca2+ self-assembles to form a spherical micellar assembly that reorganises to thermodynamically stable 1D cylindrical rods with high molar absorptivity.
The electrochemical impedance of Ni/yttria-stabilized zirconia (YSZ) cermet anodes is generally observed to consist of multiple features that can span the entire frequency range from hertz to megahertz. In order to assign the origin of these features, we apply a two-dimensional multiscale modeling approach that includ…
The chemistry of aryldiazonium salts has been thoroughly used in recent years to graft in a very simple and robust way ultrathin polyphenylene-like films on a broad range of surfaces. We show here that the same chemistry can be used to obtain “self-adhesive surfaces”. This target was reached in a simple way by coating…
The orientation of semiconducting nanomaterials is a hot topic in optoelectronic applications. Liquid crystallinity offers the potential to orient inorganic anisotropic nanorods, if they can be solubilised sufficiently as realised by polymer functionalisation. In this work we functionalised TiO2, SnO2, ZnO and CdTe na…
Chiral silver nanoparticles and chiral nanoparticulate films were prepared through the in situ reduction of an organogel formed by a newly designed silver(i)-coordinated organogelator.