Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Lanthanide complexes of DOTA derivatives 2a (BPAMD) and 2b (BPAPD), having a monoamide pendant arm with a bis(phosphonate) moiety, were comparatively tested for application in MRI, radiotherapy, and bone pain palliation. (1)H, (31)P, and (17)O NMR spectroscopy show that they are nine-coordinated, with one water molecu…
Abstract The interaction of tin with cerium oxide thin film and cerium oxide nanosized powder was studied using XPS and resonant photoelectron spectroscopy (RPES) in the Ce 4d–4f photoabsorption region. A strong tin–ceria interaction led to partial Ce 4+ → Ce 3+ transition and Sn + ion formation. A corresponding incre…
Single crystalline Co nanowire arrays with different orientations were grown within porous anodic alumina membranes by a pulsed electrodeposition technique. It was found that the orientation of nanowires can be controlled by controlling the deposition parameters and the magnetic properties depend strongly on the orien…
The synthesis and thermal properties of new shape-persistent macrocycles of different sizes decorated with intraannular alkyl chains are described. The alkyl chain length is in all cases sufficient to cross the rings and to fill their interior completely. The investigation of the thermal behavior has shown that the sm…
An unprecedented intrinsic yellow phosphor with high PL quantum efficiency and a unique MOF-like organic−inorganic hybrid open framework has been synthesized under mild thermal conditions; the structure of NTHU-6 is built from small organic oxalate linkers and large inorganic hexameric octahedral Ga−O clusters; its ex…
The resistance to in vitro metal ion oxidation of a polydimethylsiloxane (PDMS)-containing thermoplastic polyurethane elastomer (Elast-Eon) is compared with that of a polyurethane consisting of the same hard segment chemistry and content, but with aliphatic polycarbonate soft segments (PCU). Scanning electron microsco…
A novel method for non-invasive cell sheet recovery based on polyelectrolyte thin films is presented. Coatings with highly tunable properties allow for controlling the cell surface interactions or can be used as electronically switchable sacrificial layer offering a promising new tool for cell sheet based tissue engin…
This research demonstrates protonic conductivity in nanoscale fluorite- structured oxides as well as YSZ at low temperatures. The photograph shows a water concentration cell of a dense nanostructured (grain size ∼ 20 nm) Sm-doped ceria ceramic operating at room temperature. One side (cathode) of the cell is exposed to…
Three types of interplay/synergy between spin-crossover (SCO) and liquid crystalline (LC) phase transitions can be predicted: (i) systems with coupled phase transitions, where the structural changes associated to the Cr<-->LC phase transition drives the spin-state transition, (ii) systems where both transitions coexis…
A kinetic theory of homogeneous crystal nucleation in unary droplets is presented taking into account that a crystal nucleus can form not only in the volume-based mode (with all its facets within the droplet) but also in the surface-stimulated one (with one of its facets at the droplet surface). The previously develop…
Appropriate choice of biomaterial supports is critical for the study of capillary morphogenesis in vitro as well as to support vascularization of engineered tissues in vivo. Self-assembling peptides are a class of synthetic, ionic, oligopeptides that spontaneously assemble into gels with an ECM-like microarchitecture…
We investigated the effect of using a synthetic ferrimagnetic (SyF) free layer in MgO-based magnetic tunnel junctions (MTJs) on current-induced magnetization switching (CIMS), particularly for application to spin-transfer torque random access memory (SPRAM). The employed SyF free layer had a Co40Fe40B20/ Ru/ Co40Fe40B…
We introduce a new implementation of time-dependent density-functional theory which allows the \emph{entire} spectrum of a molecule or extended system to be computed with a numerical effort comparable to that of a \emph{single} standard ground-state calculation. This method is particularly well suited for large system…
BACKGROUND: Cellulose Binding Domains (CBD) were conjugated with fluorescein isothiocyanate (FITC). The surface concentration of the Binding Domains adsorbed on cellulose fibres was determined by fluorescence image analysis. RESULTS: For a CBD-FITC concentration of 60 mg/L, a coating fraction of 78% and 110% was estim…
Colossal permittivity up to 106 at 1 KHz (0.1 < tan δ < 0.7) was achieved on 70 nm Ba0.95La0.05TiO3–x materials. The colossal permittivit value is observed in nanomaterials displaying high concentration of charge carriers and low activation energy interfaces.
Multiwalled CNT entangled networks integrated into a highly conducting carbon layer can be grown on a range of substrates including glassy carbon and metal foils. A continuous flexible CNT electrode with high surface area and conductivity is produced, with a stable battery capacity of 572 mAh g–1. This discovery provi…
Uniform mesocrystals of TiO2 (anatase) have been prepared from mesocrystals of NH4TiOF3. NH4TiOF3 was synthesized from an aqueous solution containing (NH4)2TiF6 and H3BO3 in the presence of a nonionic surfactant Brij 56, Brij 58, or Brij 700, at low temperatures. The exterior shapes of NH4TiOF3 mesocrystals can be tun…
We report on the magnetic properties of the layered perovskite PbVO(3). The results of magnetic susceptibility and specific heat measurements as well as band structure calculations consistently suggest that the S=1/2 square lattice of vanadium atoms in PbVO(3) is strongly frustrated due to next-nearest-neighbor antife…
The impact of in-plane alternating currents on the exchange bias, resistance, and magnetoresistance of a CoFe/NiCoO/CoFe/Cu/CoFe spin-valve is studied. With increasing current, the resistance is increased while the maximum magnetoresistance ratio decreases. Noticeably, the reversal of the pinned layer is systematicall…
PbTiO 3 −Bi(Zn 1/2 Ti 1/2 )O 3 and related solid solutions exhibit an unusually negative thermal expansion with considerably enhanced tetragonality and Curie temperature. A zero thermal expansion is found over a wide temperature range of room temperature to 500 °C. Direct experimental evidence is given for the fact th…