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。
Abstract An approach correlating quantitative CO adsorption data with the nanostructural properties of Au/CeO2–ZrO2 catalysts is discussed. It has been used to show that the CO adsorption occurs on Au sites with coordination number ≤7, that Au dispersion has a dramatic influence on the amount of CO strongly chemisorbe…
Vacuum freeze-dried blood is a good material for vascular grafts. However, studies on this technology are few, particularly on physical performance change of freeze-dried blood vessel at different pre-freezing rate. In our study, pig aortas were non-invasively scanned by micro-CT in each stage of freeze-drying at diff…
Abstract We investigated the structural, optical, and magnetic properties of Ni–Zn(O,S) films. The Zn(O,S) films were deposited by a spray pyrolysis method on glass substrate. A thin Ni layer evaporated on these films served as the source for the diffusion doping. The XRD of the undoped films revealed the presence of…
Excited-state dynamics of CdTe nanocrystals and CdTe/CdS core/shell nanocrystals have been studied on the picosecond time scale using pump–probe transient absorption spectroscopy. The results show that exposure of CdTe nanocrystals to air can produce profound changes in the ultrafast excited-state dynamics. These chan…
Abstract CuO‐doped 0.8Pb(Mg 1/3 Nb 2/3 )O 3 ‐0.2PbTiO 3 (0.8PMN‐0.2PT) ceramics were prepared by the reaction‐sintering method. X‐ray diffraction (XRD) measurement, scanning electron microscopy (SEM) observation and density measurement confirmed that the CuO‐doped 0.8PMN‐0.2PT ceramics prepared by the reaction‐sinteri…
We show that carbon nanotubes are robust under high H2+ion fluences. We draw this conclusion by analyzing radiation-induced defects in reconfigurable single-walled carbon nanotube p-n diodes with partially suspended nanotubes. Our analysis show that any defects created through radiation is likely the result of interac…
We examine the self-organization scenarios of star-shaped AB-block copolymers, consisting of a solvophilic A-block and a solvophobic B-block, in which f such blocks are chemically anchored on a common centre on their A-parts, leaving the B-blocks exposed on their exterior. We employ a lattice model and we perform Gran…
Diamond-like carbon (DLC) film deposition on the interior surfaces of steel tubes was carried out by plasma source ion implantation. SUS304 austenitic-type stainless steel tubes with inner diameters of 9, 5, and 4 mm were used as substrate tubes. Acetylene was the working gas for the plasma that was generated by apply…
Heparin (HEP) and periodate-oxidized heparin (O-HEP) nanotubes were prepared by combining the template method with a layer-by-layer (LbL) technique. The tubular structure was obtained and characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and confocal laser scanning microscopy…
HisB, encoded by open reading frame Rv1601, possesses enzymatic activity as an imidazoleglycerol-phosphate dehydratase in the histidine-biosynthetic pathway of Mycobacterium tuberculosis. A recombinant form of HisB was crystallized in three crystal forms: crystals grown using 20% PEG 1500 as a precipitant belonged to…
Winzige Mengen genügen: Ein hochgeordnetes mesoporöses Kohlenstoffmaterial (OMC) wurde mit einer Weichtemplatmethode synthetisiert und als Adsorbens für die hocheffiziente Extraktion endogener Peptide aus menschlichem Serum genutzt (siehe Schema). Dabei konnten 3402 verschiedene Peptide in nur 20 μL menschlichem Serum…
Elektrifizierend! Ein Bauelement aus Kohlenstoffnanoröhren, die von Poly(3-hexylthiophen) umhüllt und in Polydimethylsiloxan-Blättchen dispergiert sind, konvertiert Laserlicht effizient in thermische Energie und nachfolgend in Elektrizität. Der Konverter ist flexibel und äußerst kompakt (siehe Bild) und kann mit einem…
We have studied parametric amplification in dispersion-engineered As2S3 waveguides achieving a highest gain of over +35 dB using a pulsed pump. The gain is shown to involve an interaction between stimulated Raman scattering (SRS) and four-wave mixing (FWM). The gain was studied both experimentally and using com…
In this study, we demonstrated the asymmetric synthesis of L-tert-leucine from trimethylpyruvate using branchedchain aminotransferase (BCAT) from Escherichia coli in the presence of L-glutamate as an amino donor. Since BCAT was severely inhibited by 2-ketoglutarate, in order to overcome this here, we developed a BCAT/…
Abstract We report the radio‐frequency transmission properties and distributed elements of chemical vapour deposition (CVD)‐grown graphene monolayers with width variation using a coplanar waveguide electrode in the microwave region. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Abstract This article presents synthesis and mechanical characterization of carbon nanotube (CNT)‐reinforced syntactic foams. Following a dispersion approach (comprising ultrasonic, calendering, and vacuum centrifugal mixing), single‐ and multi‐walled functionalized CNTs (FCNTs) were incorporated into two foam composi…
The paper presents the first detailed mineralogical, structural, and crystal-chemical characteristics of the mixed-layer corrensite-chlorites from the glauconitic sandy-clayey rocks that make up the bottom (0.10 m) of a basal member (1.50 m) of the lower subformation of the Yusmastakh Formation (Riphean, Anabar Uplift…
Within the thermodynamic framework with internal variables, the classical Hamilton’s principle for elastic bodies is extended to inelastic bodies composed of materials whose free energy densities are point functions of internal variables, or the so‑termed Green-inelastic bodies, subject to finite deformation and non-c…
Abstract Stimulated Raman scattering (SRS) active crystals of Ca 2 ZnSi 2 O 7 (hardystonite) adopt a melilite‐type structure at temperatures above ca. 402 K, while at ambient conditions they show a two‐dimensionally incommensurate structure modulation. To study the influence of the incommensurability of the structure…
In the nanoscale assembly-based design of antithrombotic agents, poly-α,β-DL-aspartyl-L-arginine (MW: 20 741) was prepared from the thermal polycondensation of DL-aspartic acid and the amidation of polysuccimide with L-arginine. In the pH environments corresponding to the stomach (pH 1.2), intestinal tract (pH 7.6), b…