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。
Protein-protein interactions are crucial for many biological functions. The redox interactome encompasses numerous weak transient interactions in which thioredoxin plays a central role. Proteomic studies have shown that thioredoxin binds to numerous proteins belonging to various cellular processes, including energy me…
Bulk B-C-N materials were synthesized under static high thermobaric conditions (20 GPa and 2,000 °C) in a multianvil apparatus from a polymer derived t-BC1.97N ceramic. The bulk samples were characterised using X-ray synchrotron radiation and analytical transmission electron microscopy in combination with electron ene…
The lattice dynamics of the filled skutterudite YbFe${}_{4}$Sb${}_{12}$ was studied by resonant ultrasound spectroscopy and an anomalous softening in the temperature dependence of the elastic constants at $\ensuremath{\sim}$50 K was observed. This anomaly can not be explained by the dynamics of the filler, in contrast…
Polymer nanocomposites consisting of single-walled carbon nanotubes (SWCNTs) and poly(3-octylthiophene-2,5-diyl) (P3OT) were prepared at different SWCNT loadings to investigate the influence of SWCNT content on the structure, dielectric and rheological properties of P3OT host. The dielectric parameters and dielectric…
We study a spin-5/2 antiferromagnetic trimerized chain substance SrMn${}_{3}$P${}_{4}$O${}_{14}$ using neutron powder diffraction experiments. The coplanar spiral magnetic structure appears below ${T}_{\mathrm{N}1}=2.2(1)$ K. Values of several magnetic structure parameters change rapidly at ${T}_{\mathrm{N}2}=1.75(5)$…
Abstract Attachment of β‐cyclodextrin (β‐CD) molecules on cotton textile provides hosting cavities that can include a large variety of guest molecules for specific functionality. Five different new and existing techniques were evaluated for connecting β‐CD and its derivatives to cotton surface. A comparison has been m…
Collagen gels have been investigated for a number of applications in tissue engineering because of their excellent biological properties. However, their limited mechanical behavior represents a major bottleneck for clinical use, especially for vascular tissue engineering. The targeting of their mechanical properties m…
Abstract The diffusivity and solubility of cyclohexane in a high density polyethylene, HDPE, were studied using a gravimetric, quartz‐spring, sorption balance. Solvent concentrations up to a weight fraction of 0.15 over a temperature range of 90 to 160°C were measured. Diffusion coefficients in the range of 10−6 to 10…
A model of an antiphase modulated $d$-wave superconductor has been proposed to describe the decoupling between Cu-O planes in $1/8$ doped La${}_{2\ensuremath{-}x}$Ba${}_{x}$CuO${}_{4}$. Unlike a uniform $d$-wave superconductor, this model exhibits an extended Fermi surface. Within Bogoliubov--de Gennes theory, we stud…
Abstract. The aim of this study was to reconstruct diatom production in the subarctic northern tip of the Baltic Sea, Bothnian Bay, based on down-core analysis of Si isotopes in biogenic silica (BSi). Dating of the sediment showed that the samples covered the period 1820 to 2000. The sediment core record can be divide…
Abstract The tribological properties and mass loss of polytetrafluoroethylene (PTFE) composites filled with carbon fiber (CF) or potassium titanate whisker (PTW) after the immersion in 30% sulfuric acid solution for 5 or 15 days were studied under different temperatures (25, 50, and 75°C). Results show that PTW/PTFE c…
Abstract Cyclic nickel and free-base porphyrin dimers (Ni2-CPDPy and H4-CPDPy) include fullerene C70 both in solution and in the crystals. Based on the 13C NMR spectra in solution, the included C70 molecule inside the cavity of Ni2-CPDPy shows both end-on and side-on orientations, whereas the C70 molecule within H4-CP…
An isomelezitose synthase was redesigned out of the sucrose isomerase from Protaminobacter rubrum for the synthesis of isomelezitose (6-O(F)-glucosylsucrose), a potential nutraceutical. The variants F297A, F297P, R333K, F321A_F319A and E428D catalyze the formation of isomelezitose in up to 70 % yield.
We show that the presence of a localized drive in an otherwise diffusive system results in steady-state density and current profiles that decay algebraically to their global average value, away from the drive in two or higher dimensions. An analogy to an electrostatic problem is established, whereby the density profil…
Nine spirostanol saponins (1-9) and seven mixtures of 25 R and 25 S spirostanol saponin isomers (10-16) were obtained from the seeds of Trigonella foenum-graecum after enzymatic hydrolysis of the furostanol saponin fraction by β-glucosidase. Their structures were determined by NMR and MS spectroscopy. Among them, 1- 4…
An optical technique for in situ color orientation mapping of the surface of a ductile Al polycrystal is suggested. It is based on the effect of anisotropic scattering of white light by quasiperiodic etching relief depending on the crystallographic grain orientation. The technique includes recording of digital color o…
Abstract The potential of poly(ethylene oxide) (PEO) and 49% poly(methyl methacrylate) grafted natural rubber (MG49) as a polymer host in solid polymer electrolytes (SPE) was explored for electrochemical applications. PEO–MG49 SPEs with various weight percentages of lithium perchlorate salt (LiClO4) was prepared with…
Abstract This paper will discuss the influence of parameters such as temperature, V/III ratio, atmosphere and pressure on the vertical growth of GaN rod‐structures on sapphire by metal‐organic vapor phase epitaxy. For all growth experiments a simple two step method is applied consisting of a nitridation step on the sa…
Continuous-wave photoinduced absorption spectroscopy is applied to a bulk-heterojunction solar cell based on a blend of polymer and fullerene for the determination of carrier lifetime. This technique has several advantages with respect to conventional methods: (1) mobile and trapped carriers can be clearly distinguish…
Abstract InGaN/GaN quantum wells (QWs) grown at identical conditions on m ‐plane GaN and c ‐plane sapphire substrates were characterized by several techniques, aiming to clarify the reason for different emission wavelengths often observed in similar LED structures with m ‐ and c ‐plane surface orientations. Cathodolum…