Materials Literature
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Abstract The effect of atmospheric pressure plasma treatment on wettability and dyeability of nylon 6 fibers is investigated. The plasma treatments resulted in an average of 10°–20° decrease in the advancing contact angle and 20°–30° decrease in the receding contact angle. An increased dye diffusion rate of nylon 6 fi…
Silk is one of the most desirable textile fibers due to its unprecedented flexibility, strength, and chemical resistance. Recent work has shown that ionic liquids possess great potential for dissolving and processing silk. Furthermore, ionic liquids have been shown to improve dispersion of nanoparticles throughout con…
Based on density functional theory, the geometrical and electronic structures of oxygen-functionalized single-wall carbon nanotubes (O-SWCNs) are obtained, of which the vibrational properties are calculated in terms of lattice dynamics theory. Both bond expansion and contraction are found to coexist in O-SWCNs. A dist…
Abstract We construct 3D Monte Carlo (MC) simulations including the full Coulomb interaction as accurately as possible. In order to achieve this goal, the usual strategy for the MC approach is employed; the Coulomb potential is split into the long‐range and the short‐range parts. The long‐range part of the Coulomb pot…
Alternative methods to the traditional industrial NOX and SOX flue gas cleaning processes working at lower temperatures and/or leading to useful products are desired. In this work we present our latest results regarding the use of molten ionic media in electrocatalytic membrane separation, ionic liquid reversible abso…
Virenabwehr: Synthetische Lipopeptide organisieren sich in wässriger Lösung zu virusähnlichen Nanopartikeln, die mit synthetischen Antigenen versehen werden können, um so in vivo eine antigenspezifische humorale Immunantwort hervorzurufen.
Versatile indium oxide tubular nanostructures (well-aligned nanotube arrays, flower-like tubular structures, and square nanotubes) were fabricated by a facile and reliable chemical vapor deposition (CVD) technique, taking advantage of the self-assembly property and substrate-induced epitaxial growth mechanism. The tec…
The formation of ringlike junction structures made from single-walled carbon nanotubes has been observed by transmission electron microscopy (see image). A merging process of asymmetric into symmetric rings using carbon nanotubes was investigated under electron-beam irradiation at high temperatures. Based upon these o…
The optical properties of one-dimensional gradient-refractive-index lens arrays based on liquid crystals are studied. We find that it is quite possible, using theoretical methods, to predict angular distributions of the light emanating from such arrays when they are illuminated with collimated monochromatic light. We…
Fresnoite, Ba 2 TiSi 2 O 8, is a ferroelectric crystal with a very large second-order optical nonlinearity. X-ray diffraction analysis and Raman spectra indicate that Ba 2 TiSi 2 O 8 crystals are precipitated in the glass-ceramics after heat treatment at 750 °C for 2 h. Near-infrared to visible upconversion luminescen…
ADVERTISEMENT RETURN TO ISSUEPREVNoteThin Polymer Layers Formed Using Multiarm Poly(ethylene glycol) Vinylsulfone by a Covalent Layer-by-Layer MethodJinku Kim, Bradley K. Wacker, and Donald L. ElbertView Author Information Departments of Chemical Engineering and Biomedical Engineering and Center for Materials Innovati…
This work elucidates photoinduced two-dimensional (2D) gratings in dye-doped cholesteric liquid crystal films. The helical pitch is increased by green-beam-induced trans-cis isomerization and a concomitant thermal effect. Two-dimensional gratings appear when the green beam is turned off. Grating formation results from…
BACKGROUND: The complex carbohydrate composition of natural and refined plant material is not known in detail but a matter that is of both basic and applied importance. Qualitative assessment of complex samples like plant and wood tissues requires the availability of a range of specific probes. Monoclonal antibodies a…
Charging of metal atoms or clusters on oxide surfaces has important consequences on their chemical and physical properties. Recently it is has been shown that negatively charged gold atoms and clusters form spontaneously from neutral Au atoms deposited on ultrathin MgO films. The formation of anions on the surface rem…
MOTIVATION: One bottleneck in high-throughput protein crystallography is interpreting an electron-density map, that is, fitting a molecular model to the 3D picture crystallography produces. Previously, we developed ACMI (Automatic Crystallographic Map Interpreter), an algorithm that uses a probabilistic model to infer…
The ionic recognition properties of neutral oxothiomolybdenum wheels can be changed from anionic to cationic through ionization of the internal aquo ligands. In the solid state, [Mo8O8S8(OH)10(H2O)]2- (1) interacts with two Cs+ cations to give a close supramolecular host-guest arrangement. Such interactions appear to…
Abstract This article presents research findings for selected mechanical properties of polyurethane elastomers. The studied elastomers were synthesized with the prepolymer‐based method with the use of controlled molecular weight distribution (MWD) urethane oligomers and with the classical single‐stage method. Prepolym…
Abstract Preparation of superhydrophobic silica‐based surfaces via sol–gel process by adding polyethylene glycol (PEG) polymer into the precursor solution has been developed. Surface roughness of the films was obtained by removing the organic polymer at 500°C and then the hydrophobic groups bonded onto the films were…
Studies have been performed on both as-received and chemically oxidized single-walled carbon nanotubes (SWCNTs) grown by two different growth methods to better understand the preferential association of the oligodeoxyribonucleotide T30 (ODN) with SWCNTs. Samples of T30 ODN:SWCNT were examined under ambient conditions…
We report on the nanoscale domain switching behaviour in polycrystalline tetragonal perovskite lead zirconate titanate (PZT) ferroelectric thin films investigated via piezoresponse force microscopy (PFM). Local domain structures were imaged as a function of varying biasing conditions and spatial location of the tip wi…