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。
A batch recipe for the selective crystallization of the metastable anhydrate form of an enantiotropic pseudo-dimorph system, l -phenylalanine, in a mixed solvent system (75 wt % water and 25 wt % 2-propanol) was implemented by controlled tracking of a designed trajectory in the phase diagram. The solubility curves of…
NO dissociation with and without the presence of hydrogen on the Au(321) surface was investigated using density functional theory and a periodic supercell approach. The role of hydrogen in the reaction of NO dissociation is studied by comparing four different routes (i.e. direct dissociation of NO on the clean surface…
An effective mechanism to prepare monodisperse carbon nanospheres with a regular round-ball-like shape is introduced. The route involves three steps: first, to synthesize monodisperse cross-linked polystyrene beads (CLPBs) by soap-free emulsion polymerization; second, to increase the cross-linking degree of CLPBs via…
Abstract Environmentally benign, low cost and abundantly available short pineapple leaf fibers (PALF), found mostly in the Tropical rain forest climates are ideal materials for manufacture of thermoplastic polymer‐matrix composites. Here, mechanical and thermal properties of composites of maleic anhydride grafted poly…
Using ferroelectric $0.67\text{Pb}({\text{Mg}}_{1/3}{\text{Nb}}_{2/3}){\text{O}}_{3}\text{\ensuremath{-}}0.33{\text{PbTiO}}_{3}$ single crystals as substrates, we studied the effects of the ferroelectric poling and the converse piezoelectric effect on the strain state, resistance, insulator-to-metal transition tempera…
Abstract A series of meso ‐polymethine‐substituted BODIPY compounds have been synthesized by the reaction of meso ‐methyl‐3,5‐diphenylboradipyrromethene with a number of hemicyanine derivatives. The dyes obtained exhibit intense long‐wavelength absorption, but weak fluorescence. Upon protonation of the dyes the long‐w…
A bioabsorbable nanofibrous scaffold was developed for early adhesion of mesenchymal stem cells (MSCs). Collagen nanofibers with diameters of 430 +/- 170 nm were fabricated by electrospinning. Over 45% of the MSC population adhered to this collagen nanofiber after 30 min at room temperature. Remarkably, collagen-coate…
The architecture of self-organized three-dimensionally interconnected nanocrystal fibrillar networks has been achieved by ultrasound from a solution consisting of separate spherulites. The ultrasound stimulated structural transformation is correlated to the striking ultrasonic effects on turning nongelled solutions or…
Abstract Ionische Polymere in Aktion : Konjugierte Polyelektrolyte gehören zu einer rasch wachsenden Klasse multifunktioneller Polymere, die ein π‐konjugiertes Rückgrat aufweisen und mit ionischen Gruppen versehen sind, um ihre Löslichkeit zu verbessern. Diese Materialien wurden für Anwendungen in Fluoreszenzbiosensor…
The high pH region of the phase diagram of lysozyme with NaCl as a precipitant was determined. In this region of the phase diagram, lysozyme crystallizes in one of two different orthorhombic modifications, the low and high temperature orthorhombic modifications. The solubility of two modifications was measured at diff…
Large area Ga-doped ZnO nanowire arrays have been vertically grown on transparent conducting substrate by a simple chemical vapor deposition method. Experimental results reveal the well-aligned array morphology and the uniform Ga concentration in these nanowires with individual nanowires of single crystallinity. In pa…
We report the magnetic-field-dependent Raman scattering studies on $\text{Pb}(\text{Zr},\text{Ti}){\text{O}}_{3}{\text{-CoFe}}_{2}{\text{O}}_{4}$ bilayer multiferroic system. The phonon frequencies of the nanobilayers obviously change with magnetic field, which is absent in the single $\text{Pb}(\text{Zr},\text{Ti}){\…
Two mononuclear seven-coordinated macrocycle manganese(II) compounds and three dicyanide-containing precursors have been employed as building blocks to assemble cyanide-bridged heterobimetallic complexes, resulting in five new cyanide-bridged single chain complexes {[Mn(L(1))][Fe(bpb)(CN)(2)]}ClO(4) x 0.5 H(2)O (2), {…
A series of solid sorbent materials, including alumina (Al 2 O 3 ), magnesia (MgO), titania (TiO 2 ), silica (SiO 2 ), and carbon, of widely varying physical properties, have been studied as sorbents for two toxic substances: sulfur dioxide gas (SO 2 ) and chemical warfare surrogate 2-chloroethyl ethyl sulfide (2-CEES…
Gd5Si2Ge2 belongs to the class of materials known as metamagnets that show promise for application in room-temperature magnetic refrigeration using a phenomenon known as the magnetocaloric effect. Here we image the metamagnetic transition using a local scanning Hall probe and reveal how the microstructure controls the…
Quantum dots (QDs) are useful novel luminescent markers, but their embryonic toxicity is yet to be fully established, particularly in oocyte maturation and sperm fertilization. Earlier experiments by our group show that CdSe-core QDs have cytotoxic effects on mouse blastocysts and are associated with defects in subseq…
Metal incorporated MCM-41 has proven to be a valuable template for the growth of narrow distributions of single-walled carbon nanotubes (SWNT), producing samples with a wide range of different mean diameters. The ability to obtain narrow diameter distributions at different mean diameters is important for applications…
Abstract This paper reports the electrical characterization of commercially available crystalline silicon solar cells encapsulated with poly‐vinylacetate doped with different Eu 3+ organic complexes. The inclusion of these complexes in the encapsulating matrix allows down‐shifting of the solar spectrum components belo…
A particle size dependence for CO oxidation over rhodium nanoparticles of 1.9−11.3 nm has been investigated and determined to be modified by the existence of the capping agent poly(vinylpyrrolidone) (PVP). The particles were prepared using a polyol reduction procedure with PVP as the capping agent. The Rh nanoparticle…
We show that a second-order magnetic resonance present in the fishnet metamaterial can be enhanced so as to achieve simultaneous negative permittivity and permeability in the visible range. The double-negative behavior leads to reduced losses in this particular fishnet metamaterial. We also study the stacking of sever…