Nanomaterials for cancer therapy
Nanomaterials for cancer therapy , Nanomaterials for cancer therapy , کتابخانه دیجیتال جندی شاپور اهواز
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Supramolecular cruciforms
By self-assembling fluorescent pyridyl cruciforms with bis-Pd-pincer complexes, supramolecular assemblies with attractive optical properties were synthesized; these assemblies show potential as electro-optical materials.
Preparation of monolithic SiO 2 –Al 2 O 3 cryogels with inter-connected macropores through ice templating
Macroporous monoliths of SiO2–Al2O3 cryogels were prepared. Macropores were generated by using ice crystals as the template, while the walls which surround the macropores were tailored as porous cryogels by freeze drying. Macropores and walls formed honeycomb-like structures, which were confirmed from scanning electro…
EARTHQUAKE PERFORMANCE OF STEEL FRAMES WITH NITINOL BRACES
In this paper, the seismic performance of a three- and a six-storey steel frame equipped with different bracing configurations is assessed. The bracing systems consist of traditional buckling-restrained steel braces and superelastic Nitinol shape-memory alloy (SMA) braces. Background on the behaviour of SMAs is provid…
Heptanuclear iron( iii ) triethanolamine clusters exhibiting ‘millennium dome’-like topologies and an octanuclear analogue with ground spin states of S = 5/2 and 0, respectively
The synthesis and structural determination of the tripodal triethanolamine (teaH3) based octanuclear cluster [FeIII8O3(O2CCH2CH3)6(tea)(teaH)3(F)3]·0.5MeOH·0.5H2O (1) is reported. The octanuclear core in 1 has only been observed once before in the analogous teaH3 based [Fe8O3(O2CPh)9(tea)(teaH)3]·MeCN cluster and, as…
Ligand and solvent effects in the nonaqueous synthesis of highly ordered anisotropic tungsten oxide nanostructures
Tungsten oxide nanoparticles were synthesized by a nonaqueous sol–gel process involving the reaction of tungsten chloride either with benzyl alcohol in the presence of various catechol ligands like 4-tert-butylcatechol, pyrocatechol and nordihydroguaiaretic acid or with 4-tert-butylbenzyl alcohol only. Dependent on th…
Dissolution kinetics of pyrochlore ceramics for the disposition of plutonium
Single-pass β ow-through (SPFT) experiments were conducted on a set of non-radioactive Ti-based ceramics at 90 °C and pH = 2 to 12. The specimens contained 27.9 to 35.8 wt% CeO 2 as a surrogate for UO 2 and PuO 2 . Compositions were formulated as TiO 2 -saturated pyrochlore (CeP1) and pyrochlorerich baseline (CePB1) c…
Assembly of multilayer microcapsules on CaCO3 particles from biocompatible polysaccharides
Multilayer microcapsules were fabricated by layer-by-layer (LbL) assembly of natural polysaccharides onto CaCO3 particles, following with core removal. The micron-sized CaCO3 particles were synthesized by reaction between Ca(NO3)2 and Na2CO3 solutions in the existence of carboxylmethyl cellulose (CMC). The incorporate…
Thermoelectric and Thermophysical Properties of TiCoSb-ZrCoSb-HfCoSb Pseudo Ternary System Prepared by Spark Plasma Sintering
We studied the thermoelectric and thermophysical properties of TiCoSb-ZrCoSb-HfCoSb pseudo ternary system. Polycrystalline samples were prepared by a spark plasma sintering (SPS) technique, and their thermoelectric properties above room temperature and thermophysical properties at room temperature were measured. All t…
Sensitization of photo-reduction of the polyoxometalate anions [S2M18O62]4? (M = Mo, W) in the visible spectral region by the [Ru(bpy)3]2+ cation
Voltammetric, photo-physical and photo-electrochemical properties of the Dawson polyoxometalate anions alpha-[S(2)M(18)O(62)](4-) (M = Mo, W) are presented, both in the presence and absence of a series of [Ru(II)L(n)](+/2+) cations [L(n) = (bpy)(3), (bpy)(2)(Im)(2), (bpy)(2)(dpq), (bpy)(2)(box) and (biq)(2)(box)]. Ele…
Effect of overall drop deformation on flow-induced coalescence at low capillary numbers
Comparison of recent experimental results for flow-induced drop coalescence [H. Yang, C. C. Park, Y. T. Hu et al., “The coalescence of two equal-sized drops in a two-dimensional linear flow,” Phys. Fluids13, 1087 (2001)] with existing theory provides the motivation for an examination of the theory. Specifically, for h…
Scalable synthesis of activated carbon with superparamagnetic properties
Magnetic activated carbons were obtained by in situ formation of coated superparamagnetic iron nanoparticles in the pores of carbons initially impregnated with ferric salt solution.
Modification of Al Current Collector/Active Material Interface for Power Improvement of Electrochemical Capacitor Electrodes
This paper presents results about carbon nanofibers (CNFs) synthesis and their use as surface treatments for Al current collector for carbon electrochemical capacitors in organic electrolyte. CNFs have been successfully synthesized on a pretreated Al substrate; the pretreatment of Al consists of an etching followed by…
Multilayer films based on host–guest interactions between biocompatible polymers
Multilayer films are formed using host-guest interaction between two derivatized chitosans, one, with beta-cyclodextrin cavities and the other with adamantyl moieties.
Controlling the oxidation state of arsenic in cyclic arsenic cations
Reduction of AsCl3 with SnCl2, followed by treatment of the "AsCl" with a 1,4-diimine results in electron transfer and formation of an arsenic(III) salt, while treatment of this arsenic(I) reagent or AsI3 with an alpha,alpha'-diiminopyridine ligand forms an arsenic(I) salt.
Polyoxometalate catalysts: toward the development of green H2O2‐based epoxidation systems
This paper describes the development of green, efficient H(2)O(2)-based epoxidation systems with three kinds of polyoxometalates: (i) a dinuclear peroxotungstate [W(2)O(3)(O(2))(4)(H(2)O)(2)](2-) (I), (ii) a divacant lacunary polyoxotungstate [gamma-SiW(10)O(34)(H(2)O)(2)]4 (II), (iii) and a divanadium-substituted pol…
Photochemical Construction of Photovoltaic Device Composed of p-Copper(I) Oxide and n-Zinc Oxide
The photochemical deposition of a p-type semiconducting copper(I) oxide layer by irradiating visible light in an aqueous solution containing a lactic acid and copper sulfate hydrate is presented. The layer was photochemically stacked on a chemically deposited n-type semiconducting layer/quartz glass substrate, and the…
Exploring the pyridoxal 5′‐phosphate‐dependent enzymes
Pyridoxal 5'-phosphate (PLP)-dependent enzymes represent about 4% of the enzymes classified by the Enzyme Commission. The versatility of PLP in carrying out a large variety of reactions exploiting the electron sink effect of the pyridine ring, the conformational changes accompanying the chemical steps and stabilizing…
An In Situ Raman-Electrochemical Investigation of Carbon Steel Corrosion in Na[sub 2]CO[sub 3]∕NaHCO[sub 3], Na[sub 2]SO[sub 4], and NaCl Solutions
The anoxic corrosion of carbon steel liners inside failed copper nuclear waste containers is dependent on the composition of the groundwater to which it is exposed. The influence of carbonate/bicarbonate, sulfate, and chloride in solutions simulating concentrated groundwaters at pH 8.9 on the composition of the corros…
Structures and magnetism of cyano-bridged grid-like two-dimensional 4f–3d arrays
With the introduction of 4,4′-bipyridine N,N′-dioxide (bpdo) ligands, six novel cyano/bpdo mixed-bridged heterometallic 4f–3d compounds {{Ln(III)(bpdo)(H2O)2M(III)(CN)6}·2H2O}n (Ln = Nd(1), Sm(2), Gd(3), Tb(4) with M = Fe; Ln = Nd(5), Sm(6) with M = Co) have been prepared. X-Ray crystallography revealed that they have…