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。
In the latest years, innovative nanomaterials have attracted a dramatic and exponentially increasing interest, in particular for their potential applications in the biomedical field. In this paper, we reported our findings on the cytocompatibility of barium titanate nanoparticles (BTNPs), an extremely interesting cera…
Evanescent modes in complete sonic crystals (SC) and SC with point defects are reported both theoretically and experimentally in this paper. Plane wave expansion (PWE) and, in general, $ω(k)$ methods have been used to calculate band structures showing gaps that have been interpreted as ranges of frequencies where no r…
Complete and linear incorporation of fatty acids into polyesters is achieved by isomerizing carbonylation to give polymerization-quality diesters and their polycondensation with the corresponding diols obtained by reduction. The strictly linear and long-chain hydrocarbon nature of these polyesters results in a high de…
A Department of Energy oversight review has shown that the performance of a waste treatment and immobilization plant at the Hanford Department of Energy facility depends on the performance of the ultrafiltration process utilized. In the present study, a theoretical model for permeate rates using a dead-end filtration…
The evolution of a Fe/ z′- TiO x /Pt(111) model catalyst in ultrahigh vacuum, studied by advanced surface science tools, reveals various phenomena occurring in different temperature ranges. In the room temperature (RT) < T < 460 K range, the deposited Fe atoms assemble as heterogeneous Fe and FeO x nanoparticles (NPs)…
The Ni-Mn-Ga Heusler alloy is one of the most widely investigated multiferroic material. While this system is well known to undergo a martensitic phase transformation as well as premartensitic transitions and anomalies, the present study reports the observation of multiple phase transitions occurring over a narrow tem…
Properties of hypothetical planar silica polymorphs are investigated. First, the general topological features of possible atomically thin two-dimensional silica nanostructures are analyzed. On the basis of this analysis, two fundamental structure types (termed tetragonal and trigonal) that represent the possible local…
Ultrahigh molecular weight polyethylene/SiO 2 hybrid hollow fiber membranes were prepared by thermally induced phase separation (TIPS), using mineral oil as the diluent and SiO 2 as the additive. The influences of heat-treatment, drawing ratio and drawing temperature on melting behavior, crystallization, multi-pore-st…
A series of polyimide (PI)-clay-polydimethylsiloxane (PDMS) hybrid films were successfully prepared by using two different reactions, a sol—gel reaction of diethoxydimethylsilane and imidization of polyamide acid (PAA) prepared from 3,3 ′ ,4,4 ′ -biphenyltetracarboxylic dianhydride (BPDA) and p-phenylenediamine (PDA),…
We have investigated anisotropic physical properties (the magnetic susceptibility, the electrical resistivity, the thermoelectric power, the Hall coefficient and the thermal conductivity) of the single-crystalline Taylor-phase ${\text{T}\text{-Al}}_{72.5}{\text{Mn}}_{21.5}{\text{Fe}}_{6.0}$ complex intermetallic that…
We present light harvesting of aqueous colloidal quantum dots to nonradiatively transfer their excitonic excitation energy efficiently to dye molecules in water, without requiring ligand exchange. These as-synthesized CdTe quantum dots that are used as donors to serve as light-harvesting antennas are carefully optimiz…
We report the mechanical characterization of a nanocomposite thin film consisting of CdSe quantum dots (QDs) and the electroluminescent polymer poly[2-methoxy-5-2(2'-ethylhexyloxy-p-phenylenevinylene)] (MEH-PPV). The electrical and optical properties of this nanocomposite have been studied intensely for organic electr…
The melting temperature of individual electrospun polyethylene oxide (PEO) fibres was found using atomic force microscopy (AFM) topography imaging and nanomechanical measurements. The melting temperature of electrospun PEO fibres was observed to decrease with decreasing fibre diameter. A model predicting the size-depe…
Abstract This paper addresses the chemical characterisation of silicon carbide‐based grinding tools. These are among the most widely used grinding tools in the ceramic sector, and instruments are required that enable the grinding tool quality to be controlled, despite the considerable complexity involved in determinin…
Dielectric, calorimetric, and dynamic mechanical measurements were performed to delineate the types and dynamic rates of molecular scale motion in modified poly(vinylmethyl siloxane) (PVMS) stimuli-responsive networks, where pendent groups of the form −S−(CH 2 ) n −OH were chemically attached to the vinyl moiety of PV…
We report the studies of epitaxial growth of trichosanthin (TCS) crystals on a mica substrate. TCS crystals grown on mica surface are found to be aligned well in four orientations, which was induced by the lattice of the mica substrate. The effect of potassium ions both at the mica surface and in solution was investig…
Magnetotransport at low temperatures and high-magnetic fields has been used to probe the spin splitting of the electron and hole Landau bands in natural graphite. Tilting the sample in the magnetic field allows to tune the Zeeman energy and hence the spin splitting. Due to the movement of the Fermi energy in the magne…
Pure form, single phase, and highly crystalline low-silica zeolite Y was synthesized from natural nanotubular halloysite mineral by the hydrothermal method. In the synthesis process, the halloysite consisted of SiO2 and Al2O3 was used as starting material with adding supplementary silica and alumina sources. Ammonium…
The layer-by-layer (LbL) deposition technique of anionic and cationic polyelectrolytes allows formation of thin and ultrathin nanostructured films with tunable properties and, therefore, functionality. Here, we report on the synthesis and characterization of new polyelectrolyte multilayer system consisting of anionic…
A new biomimetic approach is introduced for quantum-dot synthesis in aqueous solution. The sulfide concentration gradient around the nucleating urease is controlled by the degree of inhibition of the catalytic activity, and the optimized precursor gradient on the enzyme generates monodisperse and crystalline sulfide s…