Materials Literature
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Sheth P. T. Arts & Science College, Godhra-389 00 I, Gujarat, India<br> Matushri Virbaima Mahila Science & Home Science College, Rajkot-360 007, Gujarat, India<br> <em>Manuscript received 6 January 2007, accepted 4 June 2007</em> Homologous series 4-(4'-<em>n</em>-alkoxy benzoyloxy)-β-benzoyl styrene have been…
Quantum mechanical optimizations of theoretical enzymes (theozymes), which are predicted catalytic arrays of biological functionalities stabilizing a transition state, have been carried out for a set of nine diverse enzyme active sites. For each enzyme, the theozyme for the rate-determining transition state plus the c…
The catalytic synthesis of three-dimensional hierarchical carbon nanotube composites was based on the electrodeposition of iron and the subsequent iron-catalyzed growth of carbon nanotubes from cyclohexane. Electrochemical studies provided evidence for the strong interaction between the graphite foil, the long primary…
A new nanostructured material with tunable viscoelastic properties is fabricated using a 2D on 1D approach. The material differs from traditional carbon nanotube (CNT) re-enforced materials in that it has an integrated, hard, amorphous diamond (a-D) surface that can spread point stresses evenly to the underlying CNT s…
Abstract A simple and direct wet chemistry method is reported to simultaneously synthesize nanostructured carbon films and particles through self‐assembly of poly(styrene)‐poly(4‐vinylpyridine) (PS‐P4VP) and carbohydrate precursors (turanose, raffinose, glucose, etc.) in two fabrication processes—spin‐coating and aero…
Carbon nanotube (CNT) has been generally recognized as an electron acceptor, whereas porphyrin can act as an electron donor. In this work, acrylonitrile-based copolymers bearing porphyrin pendants were therefore blended with or without CNTs and then electrospun into nanofibers on which a redox enzyme, catalase, was co…
Here we describe the synthesis of Ag nanorods (NRs) (aspect ratio <20) and nanowires (NWs) (aspect ratio > or =20) directly on surfaces by seed-mediated growth. The procedure involves attaching gold seed nanoparticles (Au NPs) to 3-mercaptopropyltrimethoxysilane (MPTMS)-functionalized silicon or glass surfaces and gro…
Abstract A Eu III complex, tris‐dibenzoylmethane mono‐1,10‐phenanthroline‐europium(III) [Eu(DBM) 3 (Phen)] , can be easily adsorbed in situ via hydrophobic interactions to single‐walled carbon nanotube (SWNT) surfaces from a methanol solution. The Eu III ‐containing material has been comprehensively characterized via…
The most advanced CdSe-based binary semiconductor system does not work well for emission in the short wavelength spectral region from 420 to 500?nm, which is of special interest for the preparation of nanocrystal-based blue LEDs and white light generation. CdxZn1?xSe alloy nanocrystals are proven to be an attractive a…
The main aim of this study was the identification of possible routes for reaction mechanism for the pyrolysis of polyethylene. In this paper, a kinetic study of the pyrolysis of polyethylene is presented. The pyrolysis reactions were carried out in a six autoclave system using different temperatures and reaction times…
Three new trinuclear copper(II) complexes, [(CuL(1))(3)(micro(3)-OH)][ClO(4)](2).3 H(2)O (1), [(CuL(2))(3)(micro(3)-OH)][ClO(4)](2).H(2)O (2), and [(CuL(3))(3)(micro(3)-OH)][ClO(4)](2).7 H(2)O (3) have been synthesized from the three tridentate Schiff bases HL(1), HL(2), and HL(3) (HL(1)=6- aminomethyl-3-methyl-1-phen…
Two kinds of aluminum borate nanowires, Al(4)B(2)O(9) and Al(18)B(4)O(33), were successfully synthesized by a one-step combustion method through control of the Al:B atomic ratio and synthesis temperature. Both nanowires are single crystalline but have distinguishing growth habits. Nanoindentation tests were performed…
ZnO-polypropylene nanocomposites (nano-PP) were prepared using nanoparticles of ZnO stabilized by soluble starch (nano-ZnO) as filler in PP by the melt mixing process. X-ray diffraction (XRD) and other spectroscopic analysis—ultraviolet–visible (UV–vis), Fourier transform infrared (FTIR) and photoluminescence—revealed…
Quantum dot-antibody bioconjugates (QD-mAb) were synthesized incorporating PEG cross-linkers and Fc-shielding mAb fragments to increase in vivo circulation times and targeting efficiency. Microscopy of endothelial cell cultures incubated with QD-mAb directed against cell adhesion molecules (CAMs), when shielded to red…
Abstract This study reports on a new solution phase synthesis leading to cobalt and manganese doped ZnO which have been theoretically predicted ferromagnetic at room temperature. The solvothermal synthesis involving the reaction of zinc and cobalt acetate or manganese oleate with benzyl alcohol leads to pure inorganic…
Work has been carried out recently, which demonstrates misorientation measurements recorded by using electron backscatter diffraction (EBSD) enables one to undertake local post mortem plastic strain quantification once the degree of misorientation is calibrated against plastic strain. The present paper builds on this…
Novel applications in nanotechnology rely on the design of tailored nanoarchitectures. For this purpose, carbon nanotubes and nanoparticles are intensively investigated. In this work, we study the influence of nonfunctionalized carbon nanotubes on the synthesis of CdSe nanoparticles by means of organometallic colloida…
Computer simulation of the hopping charge transport in disordered organic materials has been carried out explicitly taking into account charge-charge interactions. This approach provides a possibility to take into account dynamic correlations that are neglected by more traditional approaches like mean field theory. It…
We report on the linear and nonlinear optical properties of the novel organic crystal 4-N, N-dimethylamino-4′-N′-methyl-stilbazolium 2,4,6-trimethylbenzenesulfonate (DSTMS). The principal refractive indices n1, n2, and n3 have been determined by a direct measurement of the group index dispersion over a broad wavelengt…
The pH-sensitive PEGylated nanogels constructed from tethered PEG chains and a polyamine gel core containing 19F compounds showed remarkable on-off regulation of 19F MR (magnetic resonance) signals in response to the extracellular pH (6.5) of the tumor environment, even in the presence of 90% fetal bovine serum, due t…