Materials Literature
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New detachable azobenzene-containing materials produced via solid state reaction of urea formation were used for the inscription of effective, colourless and stable surface relief gratings.
We report here new composite nanomaterials by self-assembly and control of crystallization of thermoresponsive poly(2-isopropyl-2-oxazoline) (PIPOZ)-grafted pullulan.
Due to the in situ removal of the inhibitor oxygen using an oxygen transporting membrane, a complete conversion of NO to N(2) was achieved for the first time in a catalytic perovskite membrane reactor.
Nanographite-like lamellae are obtained by the self-assembly of rectangular OPE amphiphiles peripherally decorated with polar and paraffinic chains.
We report the self-assembly behavior and tunable plasmonic property of gold nanoparticles on the surface of mercapto-silica colloidal spheres. The mercapto-silica spheres provide a quasi two-dimensional surface for nanoparticle immobilization through the strong gold–thiol interactions, making it convenient to control…
Treatment of an array of bis(phenol)s H2Lx {Lx = [(-OC6H2(2,4-R)(6-CH2))2 NCH2CH2X], where X = CH2NMe2, NMe2, NEt2, OMe and R = Bu(t), Pe(t) where Pe(t) = C(CH3)2Et} with [Ln(N(SiMe3)2)2(THF)2] (Ln = Yb, Sm) in a 1:1 molar ratio in hexanes afforded a multitude of new divalent lanthanide bis(phenolate) complexes: [L(2c…
The direct (solventless) reaction of lithium amide with ammonia borane is described and is demonstrated to form a new hybrid material approximating to LiNH2BH3NH3. This material rapidly loses 3.2 mole equivalents of hydrogen, (11.9 wt%) on heating to 250 °C, with the most rapid hydrogen release occurring at temperatur…
Lanthanide luminescence is a common method for the detection of dipicolinic acid (DPA), a chemical marker for bacterial spores. In this paper we report the development of silica nanoparticle based luminescent sensors for DPA detection. The sensors consist of three different modified EDTA–Tb complexes immobilized on 37…
Ordered ultrathin films of tris(1,10-phenanthroline-4,7-diphenylsulfonate)ruthenium(ii) anions and cationic layered double hydroxide monolayers have been fabricated by the layer-by-layer assembly technique and show well-defined polarized red luminescence.
In this study we attempt to determine the interconnection of the nanocrystal and amorphous phases in two states of spider dragline silk, native, and supercontracted with water. Infrared spectroscopy is employed to measure crystal stress with a high time resolution, while varying mechanical fields are applied to the si…
The effect of varying preparation conditions on the properties of buckypapers made using single-walled carbon nanotubes (SWNTs) was systematically investigated. Changing the sonication time, final dispersion volume or membrane filter used to prepare SWNT–Triton X-100 buckypapers all generally had only a small influenc…
Epoxy–coal tar coatings are widely used to protect steel structures exposed to marine atmosphere due to their good barrier property. However, the presence of micropores and microcracks formed during the coating formation leads to failure of the coating due to permeation of corrosive ions. In recent years, it has been…
The stacking fault energy plays a significant role in defining the type of plasticity mechanism which prevails in high-Mn steels. Therefore, a detailed understanding and control over the physical mechanisms that influence the stacking fault energies is crucial for effective design and optimization of such steels. We p…
The entire wound healing process is a complex series of events that begins at the moment of injury and can continue for months to years. The stages of wound healing are inflammatory phase, proliferation phase, fibroblastic phase and maturation phase. The Latex of Calotropis gigantean (200 mg/kg/day) was evaluated for…
A new polyoxometalate-templated Mo/V-oxide-based organic-inorganic hybrid framework with a honeycomb-like structure has been hydrothermally synthesized and its electrocatalytic property was investigated.
Models consisting of an amine-terminated poly(amidoamine) (PAMAM) dendrimer with and without the presence of a linear poly(ethylene oxide) (PEO) chain were studied in aqueous solutions by means of fully atomistic molecular dynamics simulations. Dendrimers of two generations, 3rd and 4th and at different pH conditions…
A TiO(2) photocatalyst sensitized by graft surface complexes of lacunary Wells-Dawson heteropoly blue (HPB) exhibited 20.0% quantum efficiency for H(2) evolution under 670 nm irradiation.
We report the self-assembly processes in solution of three Keplerate-type molybdenum-oxide based clusters {Mo72V30}, {Mo72Cr30} and {Mo72Fe30} (all with diameters of approximately 2.5 nm). These clusters behave as unique weak polyprotic acids owing to the external water ligands attached to the non-Mo metal centers. Wh…
In this study, a new application method for SERS named "reversed reporting agent" method is proposed for selective detection of biomolecules with a thiol group. In this method reporting agents such as rhodamine 6G (R6G) are capped on surfaces of silver colloidal nanoparticles. Analytes having a thiol group will replac…
The mesoporous Ta2O5 material functionalized with both alkyl groups and a Keggin-type heteropoly acid, Ta2O5/SiO2–[H3PW12O40/R] (R = Me or Ph), was prepared in a single step by the combination of sol-gel co-condensation, templated self-assembly, and hydrothermal treatment in the presence of a triblock copolymer surfac…