Materials Literature
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A method for the growth of highly aligned gold nanotriangles (NTs) on conducting glass surfaces is described. This may be described as ‘potential-assisted seed mediated growth'. Atomic force microscopy confirms that all the triangles observed are equilateral and are uniformly stacked. The NT-coated glass exhibits inte…
Single-walled carbon nanotubes have been efficiently dispersed in an organic solvent using the semiconducting polymers MEHPPV and PFO. It has been found that energy is transferred to the carbon nanotubes when the polymer is photo-excited across its minimum energy gap. This is shown using photoluminescence excitation m…
Abstract Nonwoven polypropylene and cotton fabrics were subjected to plasma pretreatment followed by flash evaporation and radiation crosslinking acrylate polymer coating, which is based on a vacuum deposition, solvent free, process that produces high quality, uniform fabrics with various thicknesses (0.05–5.0 μm). Th…
"Subsurfactant epitaxy" is established as a conceptually new approach for introducing manganese as a magnetic dopant into germanium. A kinetic pathway is devised in which the subsurface interstitial sites on Ge(100) are first selectively populated with Mn, while lateral diffusion and clustering on or underneath the su…
Abstract We consider the energy current correlation function for the FPU‐β lattice. For small nonlinearity one can rely on kinetic theory. The issue reduces then to a spectral analysis of the linearized collision operator. We prove thereby that, on the basis of kinetic theory, the energy current correlations decay in…
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTMesoporous Poly(phenylenevinylene) NetworksRobert Dawson, Fabing Su, Hongjun Niu, Colin D. Wood, James T. A. Jones, Yaroslav Z. Khimyak, and Andrew I. CooperView Author Information Department of Chemistry and Centre for Materials Di…
Self-assembly in the bulk of a series of hybrid triblock copolymers formed by a poly(9,9-dihexylfluorene-2,7-diyl) (PHF) middle block and two poly(γ-benzyl- l -glutamate) (PBLG) end blocks has been studied. Since the α-helical secondary structure of the PBLG block may be either maintained or suppressed depending on th…
A new class of materials was prepared from aniline-containing oligomers that are covalently linked to the nucleobases of duplex DNA. Oligomers composed of repeating aniline (PANI) or 4-aminobiphenyl (PAB) units having the properties of conducting polymers conjoined to the DNA were prepared by the reaction of horseradi…
The precise structural control is known for self-assembly into closed spherical structures (e.g., micelles), but similar control of open structures is much more challenging. Inspired by natural tobacco mosaic virus, we present the use of a rigid-rod template to control the size of a one-dimensional self-assembly. We b…
Local probing of conduction behaviors using atomic force microscopy clearly shows that the grain boundary of polycrystalline CaCu 3 Ti 4 O 12 is semiconducting. In contrast, the grain is a mixture of semiconducting and insulating regions. This inhomogeneous conductive feature leads to giant dielectric response in CaCu…
Au+(CO)n complexes are produced in the gas phase via pulsed laser vaporization, expanded in a supersonic jet, and detected with a reflectron time-of-flight mass spectrometer. Complexes up to n = 12 are observed, with mass channels corresponding to the n = 2 and n = 4 showing enhanced intensity. To investigate coordina…
Electrochemical reactors such as solid oxide fuel cells (SOFCs) are highly efficient in converting chemical fuels to electrical power. Yttria-stabilized zirconia (YSZ) is one of the most popular electrolytes because of the low cost and its stability in the redox environment. In this study, asymmetric YSZ hollow-fiber…
Molecular dynamics simulation is performed on a double-walled carbon nanotube (DWCNT) to predict its elastic properties based on a double-walled shear deformable shell model. By direct buckling measurement, we present here a method for uniquely determining the effective wall thickness for the shell model. Accounting f…
Solid-state nuclear magnetic resonance (CP/MAS 13C NMR) spectroscopy has often been used to study cellulose structure, but some features of the cellulose NMR spectrum are not yet fully understood. One such feature is a doublet around 84 ppm, a signal that has been proposed to originate from C4 atoms at cellulose fibri…
Carbon nanotubes (CNTs) are one of the most promising materials in nanotechnology. The various synthesis, purification and postprocessing methods produce CNTs with diverse physical characteristics, appliable in many fields. Their extensive projected use makes it important to understand their potential harmful effects.…
Single crystalline Au nanorods (Au NRs), synthesized via seed-mediated growth, show unique surface structures. Apart from the oft-observed {100} and {111} facets, unexpectedly, unstable {110} facets dominate in such nanorods due to {110} restricted growth. Unique properties have been suggested for the nanorods. One no…
The acid-catalyzed polymerization and resinification, in the 300-673 K interval, of furfuryl alcohol adsorbed in the framework of a protonic Y zeolite is studied by means of FTIR, Raman, and UV-vis spectroscopies. The idea is that restricted spaces can impose a constraint to the growth of the oligomeric chains, theref…
The cores of globular proteins are densely packed, resulting in complicated networks of structural interactions. These interactions in turn give rise to dynamic structural correlations over a wide range of time scales. Accurate analysis of these complex correlations is crucial for understanding biomolecular mechanisms…
The possibility of using wild non-mulberry silk protein as a biopolymer remains unexplored compared to domesticated mulberry silk protein. One of the main reasons for this was for not having any suitable method of extraction of silk protein fibroin from cocoons and silk glands. In this study non-bioengineered non-mulb…
In the present study, we found a pronounced effect on the PL and shortening of the overall lifetime of rhodamine 6G (R6G) when interacting with the spherical, shaped, and capped Au NPs, but there are no measured effects on radiative rate of the dye. The observed Förster distances ( R 0 ) are 105.75, 170, and 124 Å for…