Materials Literature
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Cu:SAPO-5 and Cu:SAPO-11 were prepared by conventional and hydrothermal ion exchange. Copper incorporation is increased six-fold by hydrothermal ion exchange relative to conventional methods. In all cases, the amount of copper taken up by SAPO-11 is superior to uptake in SAPO-5. Copper is divalent and in tetragonally-…
Abstract Recent advances in the synthesis and characterization of materials for environmental catalysts are reported in this paper. Highly advanced environmental catalysts for decomposition of volatile organic compounds and nitrogen oxides were artificially designed based on a concept usually employed in the fields of…
Gold nanoparticles functionalized with imidazolylporphyrinatozinc(II)s were bridged by successive imidazole-to-zinc coordination of bidirectional porphyrinatozinc(II) units.
Here we report chemically induced folding of thin graphene flakes. The folding occurs spontaneously when an intercalating species interrupts the adhesion between graphene and a supporting substrate. The morphology of induced folds suggests that the conjugated pi network is capable of extremely sharp curvature. Adjacen…
Liposomes are microparticulate lipoidal vesicles which are under extensive investigation as drug carriers for improving the delivery of therapeutic agents. Due to new developments in liposome technology, several liposome-based drug formulations are currently in clinical trial, and recently some of them have been appro…
The objective of this work is to study the magnetic properties of arrays of Ni-Fe nanowires electrodeposited in different template materials such as porous silicon, polycarbonate and alumina. Magnetic properties were studied as a function of template material, applied magnetic field (parallel and perpendicular) during…
Bu çalışmanın amacı, çözücü buharlaştırma yöntemi ile poli (DL-laktid-ko-glikolid) (PLGA) nanopartiküllerinin hazırlanması ve bu nanopartiküllerin özellikleri üzerine çeşitli stabilizasyon ajanlarının etkilerinin aydınlatılmasıdır. Stabilizasyon ajanlarının kullanılması, nanopartikül üretim işlemi sırasında stabil emü…
In the past five decades, many new types of polymers, containing nitrogen and phosphorus atoms as a significant part of the polymer backbone, have been synthesized. This paper reviews the developments in the field of polyphosphazenes and their applications. In this paper, synthesis, characterization, functionalization…
Abstract: Realization of current trends and innovative uses of insect fibre, silk is required to exploit its compatibility, eco friendly and value addition potential. The nutritive value as human diet for cardiac and diabetic patients, component for cosmetic preparations indicate silk application rate. The bio-compati…
Triblock copolymers consisting of a middle silk-like [(Gly – Ala)3 – Gly – Glu]n block flanked by two hydrophilic end blocks that assume a random conformation in aqueous solution at all pH spontaneously assemble into micrometre long fibers at low pH. As elucidating the molecular structure of the stacked middle blocks,…
The reactivity of Mn2O3 and late rare-earth sesquioxides in alkaline aqueous solution affords a high-yield formation of rare-earth manganites, LnMnO3 (Ln = Ho–Lu and Y). The yield of the products depends significantly on the pH, which determines the solubility of the manganese cation, and reaction temperature, which r…
Irradiation of CdSe-ZnS quantum dots (QDs) with visible light in the presence of [PtCl(4)(bpy)] (1) (bpy = 2,2'-bipyridine) produced with high efficiency [PtCl(2)(bpy)] (2) by photoinduced electron transfer; a reaction and strategy which opens up new opportunities for cancer therapy.
Abstract Single‐walled carbon nanotubes (SWNTs) have unique properties and are projected to have a major impact in nanoscale electronics, materials science, and nanomedicine. Yet, these potential applications are hindered by the need for sample purification to separate SWNTs from each other and from metallic catalyst…
The sorption and diffusion of toluene through blends of natural rubber (NR) and linear low density polyethylene (LLDPE) of varying compositions were studied at 35, 55, and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msup><mml:mrow><mml:mn>65</mml:mn></mml:mrow><mml:mi>°</mml:mi></mml:msup><m…
This study examined the effect of adding SrO on the grain-boundary conduction of (gadolinia-doped ceria) containing . The apparent grain-boundary resistivity at decreased drastically from upon doping with SrO, while the grain-interior resistivity increased gradually from as the SrO concentration was increased up to .…
This paper presents experimental distributions of recombination rates for excitons in individual CdSe-ZnS core-shell quantum dots separated from a smooth gold film by a nanometre-scale dielectric layer. By measuring emission kinetics as a function of time, we obtain intrinsic recombination rates for single quantum dot…
The functionalisation of carbon nanomaterials with the standard nitric acid treatment is greatly influenced by their graphitic character. The structural order directs the density as well as the nature of the created functional groups and, as a consequence, influences the efficiency of their filling with metal nanopart…
Complexes of the type (L–L)MoO(O2)2 heterogenized on phenylene-bridged mesoporous organosilicas show a 10-fold increase in catalytic activity and a high stability in liquid phase epoxidation reactions, with H2O2 as the oxidant, compared to the corresponding MCM-41-derived systems.
In this communication, we describe a general, straightforward route to produce highly porous bulk materials from melt-processable and intractable polymers using particle-stabilized liquid foams.
Determination of Contact Resistivity by the Cox and Strack Method for Metal Contacts to Bulk Bismuth Antimony Telluride, Gupta, R. P., White, J. B., Iyore, O. D., Chakrabarti, U., Alshareef, H. N., Gnade, B. E.