Materials Literature
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Abstract Mg–Al layered double hydroxide intercalated with 2,7-naphthalenedisulfonate ions (2,7-NDS·Mg–Al LDH) selectively absorbs aromatic compounds from aqueous solutions. The amount of material absorbed by 2,7-NDS·Mg–Al LDH depends on the electron-donating or electron-withdrawing properties of the functional groups…
Electroless composite plating of (Ni–P)–Fe 3 O 4 nanoparticles on PET fabric was performed in the laboratory. The (Ni–P)–Fe 3 O 4 coated fabric was investigated by means of scanning electron microscopy, energy dispersive spectroscopy, thermal gravimetric and X‐ray diffraction analysis. The electromagnetic shielding pe…
The performance of a parallel implementation of the phonon Boltzmann transport equation (BTE) is tested. Two three-phonon scattering models, the full-scattering model and the anisotropic relaxation-time model, are considered. The finite-volume method is used to solve the BTE numerically. Two strategies are explored: s…
Abstract A self‐made low‐pressure device (up to 100 psi) for hydrodynamic cavitation was tested with the reaction of BTEX (benzene, toluene, ethylbenzene, and xylenes) in water. Experimental parameters, such as inlet pressure, solution temperature, and concentration of the chosen substrates, as well as the effect of d…
Adsorption of polymers to surfaces is crucial for understanding many fundamental processes in nature. Recent experimental studies indicate that the adsorption dynamics is dominated by non-equilibrium effects. We investigate the adsorption of a single polymer of length $N$ to a planar solid surface in the absence of hy…
BACKGROUND: Type I mammalian collagens have several photolabile fluorescent moieties that absorb UV rays capable of reaching the dermis. We studied the temperature dependence of fluorescence fading as a marker of photochemical damage. METHODS: Collagen solutions were exposed to radiation from 0 to 240 min from either…
The past 10 years have seen remarkable developments in microwave, optical and acoustic methods that make use of the unique wave transmission properties of a class of ordered composites known as metamaterials. These materials differ from regular materials in that wave propagation is dramatically affected by the size an…
Abstract Degummed Antheraea pernyi silk fibroin (APSF) fibers were dissolved in a lithium thiocyanate solution that was dialyzed against distilled water for 3 days. Solution‐cast APSF films were dissolved in hexafluoroisopropanol to prepare a spinning solution. Wet spinning was employed to prepare APSF filaments. Scan…
The purpose of this study is to develop analytical equations using micromechanical methods that can effectively and accurately estimate the mechanical properties of polymer composite materials containing clay nanoparticle fillers. Various modeling techniques using the micromechanical approach are researched, including…
The complete isotope effect and quantum paraelectricity in hydrogen-bonded crystals of the ${\text{K}}_{3}\text{H}{({\text{SO}}_{4})}_{2}$ group are usually attributed to the proton tunneling and geometric isotope effect. However, a mechanism of the quantum effects is not unambiguously determined because neutron-scatt…
In this article we derive the effective pairwise interactions in a Langevin-type united atoms model of water. The interactions are determined from the trajectories of a detailed molecular dynamics simulation of simple point charge water. A standard method is used for estimating the conservative interaction, whereas a…
A kind of optical fiber doped with CdSe/ZnS quantum dot in low concentrations was fabricated for preparing a fiber amplifier. The photoluminescence and absorption spectra transmitted through the doped fiber were measured in different doping concentrations and fiber lengths. Effects of the doping concentration and fibe…
TTHA1623 is a metallo-beta-lactamase superfamily protein from the extremely thermophilic bacterium Thermus thermophilus HB8. Homologues of TTHA1623 exist in a wide range of bacteria and archaea and one eukaryote, Giardia lamblia, but their function remains unknown. To analyze the structural properties of TTHA1623, the…
Using quasielastic neutron scattering, we have investigated the water dynamics of powders of the compound with the stoichiometry of [Mo 72 Fe 30 O 252 (CH 3 COO) 12 [Mo 2 O 7 (H 2 O)] 2 [H 2 Mo 2 O 8 (H 2 O)](H 2 O) 91 ]· ≈ 150H 2 O. It contains about 150 crystal water molecules in the voids between the spherical {Mo…
Carboxylated semiconductor and metallic carbon nanotubes under transverse electrical fields are investigated through density functional theory based on first-principles calculations. The external field polarizes the system, resulting in an induced electric dipole moment toward the incident field with the modulus direc…
Poly(3,4-ethylenedioxythiophene) (PEDOT)-coated counter electrodes for dye-sensitized solar cells have been prepared at ambient temperature and without the use of iron-based oxidants, using an ionic liquid for the synthesis of the PEDOT. These electrodes show comparable electrocatalytic performance with conventional P…
The present experimental work is aimed at studying the performance of recycled newspaper and recycled newspaper/glass fiber hybrid polypropylene composites. The effects of glass fiber loading and maleic anhydride (MA) as a coupling agent on the tensile behavior and impact strength of composites containing 30 wt% fiber…
Pig heart citrate synthase was crystallized from a small-molecule cocktail containing cystamine dihydrochloride, aspartame and benzamidine hydrochloride. The structure was refined to an R factor of 0.179 (R(free) = 0.222) using synchrotron data to a resolution of 1.78 A. The model includes the full-length protein, a c…
A novel tetranuclear copper(ii) complex [Cu4L2(µ1,1- N3)2]·CH3CN (1) has been synthesized using a symmetrical quinquedentate N2O3-donor Schiff-base ligand H3L (N,N'-(2-hydroxypropane-1,3-diyl)bis(2- hydroxyacetophenimine)) and characterized by elemental analysis, Fourier-transform (FT)-IR, UV-visible, electron paramag…
The spatial and temperature dependence of the surface-induced orientational order parameter S(z,T) was determined in the isotropic phase. An optical fiber was immersed in a thin liquid crystal layer and the retardation was measured as a function of the fiber's height above the surface, from which the model-independent…