Materials Literature
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Abstract A series of zinc(II)–lanthanide(III) dimetallic complexes have been synthesized by the one‐pot reaction of the oxime‐based N 2 O 2 chelate ligand H 2 L with zinc(II) acetate and lanthanide(III) salts. The heavier lanthanides (Sm–Lu) producedheterodinuclear complexes [LZnLn] 3+ (Ln = Sm–Lu) in which the zinc(I…
Molten In, Pb, and Sb were examined as anodes in solid oxide fuel cells (SOFC) that operate between 973 and 1173 K. The results for these metals were compared with those reported previously for molten Sn electrodes. Cells were operated under “battery” conditions, with dry He or N 2 flow in the anode compartment, to ch…
Tissue-engineered blood vessels may provide a solution to the lack of suitable blood vessels for coronary and peripheral vessel bypass grafting. Cyclic strain can be used to provide a more physiological environment that may result in tissue that more closely resembles native artery. In this study, cyclic strain is app…
Systematic crystal structure refinements from powder X-ray diffraction data as well as density functional theory calculations demonstrate that the silicon clathrate II Si(cF136) exhibits a lattice contraction as Na is introduced solely into the Si(28) cages. When the Si(20) cages, in addition, begin to be filled with…
Hollow nanocapsules composed of a poly(lactic acid)s (PLAs) stereocomplex can be fabricated by a combination of the layer-by-layer assembly technique and the silica template method. These hollow capsules one-dimensionally fuse together to generate novel PLA nanotubes. The formation of nanotubes was affected by the mol…
Controlling the morphology of single-walled carbon nanotubes (SWNTs) is essential to realize their excellent device characteristics in electronics. DNA-wrapped SWNTs provides an effective, scalable way to fabricate the super-uniform networks of highly isolated, structure-sorted SWNTs for thin-film transistors (TFTs).…
An Eu(2+)-doped LiMgPO(4) phosphor was prepared by a high temperature solid-state reaction. The formation was confirmed by x-ray powder diffraction measurements to be a single LiMgPO(4) phase. The photoluminescence excitation and emission spectra were investigated. The luminescence shows a broad emission from the 4f(6…
Abstract Stack lamella deformation depends on their orientation with respect to the loading axis, the intrinsic properties of the lamellae, and the mechanical coupling between crystalline and amorphous phases. The aim of this work is to investigate the influence of the stress transmitter (ST) density and the crystalli…
The phase behavior of concentrated mixtures of block copolymers with an ionic liquid has been studied using a large series of block copolymers with varying molecular weight and volume fraction to gain a thorough understanding of the thermodynamics of self-assembly. The lyotropic phase behavior of mixtures of poly(styr…
Interfaces dominate the thermal resistances in aligned carbon nanotube arrays. This work uses nanosecond thermoreflectance thermometry to separate interface and volume resistances for 10 microm thick aligned SWNT films coated with Al, Ti, Pd, Pt, and Ni. We interpret the data by defining the nanotube-metal engagement…
Abstract An experimental study was made of the effects of prior molecular orientation on large tensile deformations of polystyrene in the glassy state. A new hybrid glass‐melt constitutive model is proposed for describing and understanding the results, achieved by parallel coupling of the ROLIEPOLY molecularly‐based m…
Density functional theory and Bader charge analyses were used to investigate the charge state of hydrogen in vanadium, niobium, tantalum, palladium, and niobium−palladium alloys. Over a range of concentrations and hydrogen-site configurations, it is found that hydrogen consistently acquires a net charge of between app…
Nanostructured single-site heterogeneous catalysts possess the advantages of classical solid catalysts, in terms of easy recovery and recycling, together with a defined tailored chemical and steric environment around the catalytically active metal site. The use of inorganic oxide supports with selected shape and poros…
Abstract A new methodology to investigate the failure of elastomers in a confined geometry has been developed and applied to model end‐linked polyurethane elastomers. The experimental in situ observations show that the elastomers fail by the growth of a single cavity nucleated in the region of maximum hydrostatic stre…
Barrier property, gap-fill quality, and electromigration (EM) resistance of a TaN diffusion barrier with ultrathin-Cu/Ru(Ta) liner layers were carried out to evaluate its feasibility for back-end-of-the-line Cu/low- k interconnects. Ru/TaN and Ru0.9Ta0.1/TaN liner stacks show comparable oxidation and Cu diffusion barr…
Nano- and microparticles of various shapes have recently been introduced for various drug-delivery applications. Shape of particles has been shown to have an impact on various processes including circulation, vascular adhesion and phagocytosis. Here, we assess the role of particle geometry and surface chemistry in the…
Abstract The nature of strain hardening in glassy polymers is investigated by studying the mechanical response of oriented polycarbonate in uniaxial extension and compression. The yield stress in extension is observed to increase strongly with predeformation, whereas it slightly decreases in compression (the so‐called…
A web server, ProBiS, freely available at http://probis.cmm.ki.si, is presented. This provides access to the program ProBiS (Protein Binding Sites), which detects protein binding sites based on local structural alignments. Detailed instructions and user guidelines for use of ProBiS are available at the server under 'H…
While a Hall-Petch-type dependence is known for deformation twinning (DT) in Cu and other metals of conventional grain sizes $(D>1\text{ }\ensuremath{\mu}\text{m})$, with $D$ decreasing into the nanocrystalline regime, the propensity for DT turns around to increase, exhibiting an inverse grain size dependence. This…
Integration of organic and inorganic electronic materials is one of the emerging approaches to achieve novel material functionalities. Here, we demonstrate a stable self-assembled monolayer of an alkylsilane grown at the surface of graphite and graphene. Detailed characterization of the system using scanning probe mic…