Materials Literature
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Using the Fourier modal method (FMM) we report our analysis of the transmission resonances of a plasmonic grating with subwavelength period and extremely narrow slits for wavelengths of the incoming, transverse magnetic (TM)-polarized, radiation ranging from 240nm to 1500nm and incident angles from 0° to 90°…
Magnetic spherical polyelectrolyte brushes (MSPB) with embedded magnetite nanoparticles in core were successfully synthesized and characterized by dynamic light scattering (DLS), a scanning electron microscope (SEM), a high resolution transmission electron microscope (HRTEM), thermal gravimetric analysis (TGA), X-ray…
Den Reißverschluss schließen: Bei dem hier vorgestellten Verfahren zur organischen Bottom-up-Synthese defektfreier Graphen-Nanobänder in Lösung ermöglichen Polyphenylenvorstufen mit einem einzigartigen geknickten Gerüst durch eine intramolekulare Scholl-Reaktion mit FeCl3 eine vollständige Cyclodehydrierung in einem e…
Zinc bis(chelate) guanidine complexes promote living lactide polymerization at elevated temperatures. By means of kinetic and spectroscopic analyses the mechanism has been elucidated for these special initiators that make use of neutral N-donor ligands. The neutral guanidine function initiates the polymerization by a…
Abstract The carbon nanotubes (CNTs)/rigid polyurethane (PU) foam composites with a low percolation threshold of ∼ 1.2 wt % were prepared by constructing effective conductive paths with homogeneous dispersion of the CNTs in both the cell walls and struts of the PU foam. The conductive foam presented excellent electric…
Ein Wirt-Gast-Erkennungsmotiv auf Basis eines Kronenethers wurde verwendet, um ein supramolekulares Polymergel aus einem niedermolekularen AB-Monomer herzustellen. Das Gel ist doppelt responsiv: Es geht wärme- und pH-induzierte Gel-Sol-Übergänge ein, die zur kontrollierten Freisetzung von Rhodamin B genutzt wurden.
It is well-known that NiO−CoO solid solutions can easily be formed. However, the formation of Ni 3 O 4 −Co 3 O 4 solid solutions has not been recognized. In this article, it is reported that, whereas the calcination of a Ni(NO 3 ) 2 and Co(NO 3 ) 2 mixture with a 1:1 molar ratio at a high temperature above 800 °C gene…
Graphene has attracted an enormous amount of interest recently because of its unique electronic, optical, mechanical, and other properties. We report a promising method for producing single-layer graphene fully covering an entire substrate at low temperature. Single-layer graphene sheets have been synthesized on a who…
We present a one-step chemical vapor deposition method to prepare iron/nickel sulfide nanostructures-filled carbon nanotubes (CNTs) by pyrolysis of dimethyl sulfide on stainless steel substrate. Dimethyl sulfide is used as the carbon and sulfur source, and the stainless steel substrate acts as both the catalyst and su…
The properties of UO$_{2}$ result from rich $f$-electron physics, including electronic Coulomb interactions, spin-orbit and crystal field effects, as well as inter-ionic multipolar coupling. We present a comprehensive theoretical study of the electronic structure of UO$_{2}$ using a combined application of self-consis…
We present the magnetic and transport behavior of some Tb compounds, viz., TbIrGe2, TbFe(0.4)Ge2, and TbCo(0.4)Ge2. The stoichoometric germanide TbIrGe2 exhibits at least two distinct magnetic transitions in a close temperature interval around 10 K. The non-stoichiometric compounds, TbFe(0.4)Ge2 and TbCo(0.4)Ge2, unde…
Synthetic biomaterials serve as a cornerstone in the development of clinically focused regenerative medicine therapies that aim to reduce suffering and prolong life. Recent improvements in biodegradable elastomeric materials utilize natural extracellular matrix proteins as inspiration to yield a new class of materials…
Cupric oxide is multiferroic at unusually high temperatures. From density functional calculations we find that the low-T magnetic phase is paraelectric, and the higher-T one is ferroelectric with a size and direction of polarization in good agreement with experiments. By mapping the ab initio results on to an effectiv…
This paper describes research on the technological evolution of glazed ceramics with a metallic lustre decoration starting from their emergence in the Near East until the Hispano-Moresque productions. That research covers the main known Islamic production sites and periods: Abbasid (Mesopotamia); Fatimid (Egypt); Timu…
Concentrated particulate suspensions, commonplace in the pharmaceutical, cosmetic and food industries, display intriguing rheology. In particular, the dramatic increase in viscosity with strain rate (shear thickening and jamming) which is often observed at high volume fractions, is of strong practical and fundamental…
We developed a simple and facile method of producing a stable aqueous suspension of reduced graphene oxide (RGO) nanosheets through the chemical reduction of graphene oxide in the presence of a conducting polymer dispersant, poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS). This approach involves…
Abstract The novel bacterial cellulose (BC)/collagen composites were prepared by immersing wet BC pellicle excreted by Acetobacter xylinum in collagen solution followed by freeze‐drying process. The product looks like a foam structure. The morphology of BC/collagen composite was examined by scanning electron microscop…
Kaolinite nanoscrolls, rolled kaolinite sheets with a tubular form, were prepared by a one-step route in which intercalation of guest species and swelling with solvent proceed at the same time. A methoxy-modified kaolinite was exfoliated by the intercalation of hexadecyltrimethylammonium chloride. The formation of nan…
Gold nanoisland films displaying localized surface plasmon resonance optical response were constructed by evaporation on glass and annealing. The surface plasmon distance sensitivity and refractive index sensitivity (RIS) for island films of different nominal thicknesses and morphologies were investigated using layer-…
New ferroelectrics can be predicted by considering the existence of pseudosymmetry with respect to a higher symmetry structure using the so-called atomic displacement method and investigating the minimal supergroups of the given structure’s space group. This analysis can be performed with the new version of the comput…