Materials Literature
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We present the optical and magneto-optical characterization of ${\mathrm{La}}_{0.7}(\mathrm{Sr},\mathrm{Ca}{)}_{0.3}{\mathrm{MnO}}_{3}$ at temperatures $25\phantom{\rule{0.3em}{0ex}}\mathrm{K}\ensuremath{\leqslant}T\ensuremath{\leqslant}470\phantom{\rule{0.3em}{0ex}}\mathrm{K}$. The metal-insulator transition is accom…
The magnetocaloric effect (MCE) is studied in CeFe 2 and Ru-doped CeFe 2 alloys with dc magnetization measurements. The pure CeFe 2 compound shows a distinct peak in MCE around the paramagnetic to ferromagnetic transition. In Ru-doped CeFe 2 alloys there is a further transition from the ferromagnetic to antiferromagne…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Bovine serum albumin (BSA) microspheres incorporated with CdTe quantum dots (QDs) have been prepared via a spray-drying and thermal-denaturizing approach. The results show that the morphology of the composites obtained was greatly affected by the inlet temperature and the initial concentration of BSA in the precursor.…
The review that was allocated pages R41–R56 has been withdrawn at a late stage. If you have already downloaded this paper, please consider it unpublished. If you have any queries, please contact nano@iop.org .
There is a growing interest in the use of natural/bio-fibers as reinforcing components for thermoplastics and thermosets. However, they do suffer from a few limitations, such as lower compatibility with relatively hydrophobic polymer matrixes. Thus, improvement of the interface and interphase interactions in natural f…
Specific modification of properties such as porosity and pore size of engineered wood‐based source material enables the custom design of porous wood‐derived SiC that is produced by carbothermal reduction between the carbonized wood‐based material and an infiltrated silica sol. In contrast to bulk wood, the anisotropic…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Sterische Einflüsse bestimmen die katalytische reduktive Epoxidringöffnung. Das ergab eine Kombination aus experimentellen und theoretischen Studien, die interessante Merkmale der Katalysatorstruktur, der Substratbindung, des Übergangszustands (siehe Bild) und der Reaktionsenergien aufdeckten. Auf dieser Grundlage kön…
Thin films of BaTiO 3 were prepared by radio-frequency magnetron sputtering at substrate temperatures from 450 to 750 °C and analysed by x-ray diffraction, optical transmittance and Raman spectroscopy. The packing density of the films relative to the crystalline density increases from 0.75 at 450 °C to about 1 at 750…
Abstract The label‐free detection of oligonucleotides of 12–14 bases at a concentration of 10 −7 M (double helix) was achieved by using surface enhanced Raman scattering (SERS) and spermine as the aggregant of Ag sol. The wavenumbers of the produced SERS spectra of DNA are similar to those in the corresponding normal…
Abstract Challenges for wood‐thermoplastic composites to be utilized in structural applications are to lower product weight and to improve the long‐term load performance. Silane crosslinking of the composites is one way to reduce the creep during long‐term loading and to improve the mechanical properties. In this stud…
Hollow zinc oxide microspheres have been synthesized from a micro ZnBr2·2H2O precursor obtained by an autoclave process in bromoform steam at 220 °C /2.5 MPa. Field-emission scanning electron microscropy (FE-SEM) and transmission electron microscopy (TEM) show that the products are about 1.0 µm single crystal spherica…
Bifunctional periodic mesoporous organosilica was synthesized by co-condensation of tri[3-(trimethoxysilyl)propyl]isocyanurate and 1,2-bis(triethoxysilyl)ethane in the presence of a triblock copolymer template at low acid conentrations. This PMO features high surface area, large pore volume, and channel-like ordered m…
The binding interactions between pyridine and bimetallic silver-gold clusters are investigated using density functional theory (DFT). The binding energies of pyridine-bimetallic cluster complexes indicate that the bonding depends strongly on the binding site (Au or Ag atom) and bonding molecular orbitals in a given co…
A unique phase behavior was investigated for binary mixtures of diblock copolymers in order to explore the cosurfactant effect as a function of temperature. The mixtures are composed of a long asymmetric polystyrene- block -polyisoprene (SI) copolymer and a short symmetric SI copolymer denoted, respectively, as as and…
We have investigated the molecular motions responsible for the dielectric γ-relaxation of bisphenol A polycarbonate (BPA−PC) by taking advantage of the unbalanced influence of cold-drawing in the dielectric losses. The direct comparison of the dielectric relaxation curves measured on the BPA−PC samples uniaxially stre…
Abstract Epoxy/TiO 2 composites were prepared by solution mixture method, in which epoxy resin and nano‐TiO 2 liquid were mixed in the presence of methyl isobutylketone. According to the experimental results, hydrogen bonds can be formed by mixing TiO 2 particles and epoxy resin. The SEM analysis suggests that TiO 2 p…
Chain-like Mg-doped ZnO nanoparticles were prepared using a wet chemical method combined with subsequent heat treatment. The blueshifted near-band-edge emission of the doped ZnO sample with respect to the undoped one was investigated by temperature-dependent photoluminescence. Based on the energy shift of the free-exc…
(BiFeO 3 ) 1− x –(PbTiO 3 ) x solution films have been prepared on LaNiO 3 /SiO 2 /Si substrates by the sol–gel process at an annealing temperature of 500 °C. X-ray diffraction patterns indicate that a cubic phase transition occurs in the film with x = 0.1. Cross section scanning shows the thickness of the films is ab…