Materials Literature
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Abstract By means of in situ graft method, polypropylene (PP)‐wrapped carbon nanotubes (CNTs) composite were prepared. Infrared spectroscopy (IR) results showed that there was covalent linkage between PP and CNTs via maleic anhydride (MAH) grafting. Owing to the uniform dispersion of CNTs and covalent adhesion between…
A combination of ab initio molecular dynamics and parameter-free analysis of time-correlation functions based on the generalized collective mode approach is applied for the study of collective dynamics in a molten salt NaI beyond the hydrodynamic region and manifestation of collective excitations in dynamic structure…
We report multiple holographic recording and optical address recognition schemes in Methyl Red-doped liquid-crystal film without an applied electric field. Ten gratings are recorded at a single location of a 5 mm2 area by using optical multiplexing methods, and the diffraction efficiencies are studied for multiplexed…
Abstract Commercial blow molding grade recycled high density polyethylene (R‐HDPE) and blow molding grade virgin high density polyethylene (V‐HDPE) were reactively extruded with various compositions (0.00–0.15% wt/wt) of different peroxides in a twin screw extruder. The aim was to produce the extended chain mechanism…
In this work, the effect of a negative thermal expansion zirconium tungstate (ZrW2O8) filler on the cure behavior of a unique low-viscosity bisphenol E cyanate ester (BECy) is characterized by differential scanning calorimetry. The cure rate of BECy is found to increase upon the incorporation of ZrW2O8 particles, and…
DNA ligases join the breaks in double-stranded DNA by catalyzing the formation of a phosphodiester bond between adjacent 3'-hydroxyl and 5'-phosphate termini. They fall into two classes that require either ATP or NAD(+) as the source of an AMP group that is covalently attached to a strictly conserved lysine. Conformat…
The spin-orbit coupling (SOC) of single-walled carbon nanotube (SWNT) has been studied using both the first-principles and tight-binding (TB) methods. It is found that the curvature-induced $\ensuremath{\sigma}\text{\ensuremath{-}}\ensuremath{\pi}$ coupling in the SWNTs always causes a more strong SOC in their $\ensur…
Inspired by the brilliant whiteness of Cyphochilus beetles found in Southeast Asia, we produced an electrospun nanofiber web with a very high CIE whiteness index, thus providing an extremely effective and efficient light shielding layer for textile and industrial applications. Polyurethane, polymethyl methacrylate and…
For the first time, a new member of the BIMEVOX family, namely BICEVOX, has been synthesized by the partial solid-state substitution of Ce(IV) for vanadium in parent Bi4V2O11 solid electrolyte. The electrical conductivity in Bi4Ce x V2− x O11−( x /2)− δ has been investigated in the compositional range 0 ≤ x ≤ 0.30, us…
Treatment of 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) with a group 1 metal (Li, Na, K, Rb, or Cs), resulted in the reduction of this important radical to the TEMPO(-) anion--the first examples of elemental-metal single electron reduction of the radical to its anionic form. The synthesis and characterization of sev…
We have studied numerically the statistics for electronic states (level spacings and participation ratios) from disordered graphene dots of finite size, described by the aspect ratio $W/L$ and various geometries, corresponding to finite chiral or achiral carbon nanotubes. Quantum chaotic Wigner energy level-spacing di…
We report theoretical investigations of the coloration of ${\text{WO}}_{3}$ upon charge insertion using sodium tungsten bronze $({\text{Na}}_{x}{\text{WO}}_{3})$ as a model system. Our results explain well the systematic color change of ${\text{Na}}_{x}{\text{WO}}_{3}$ from dark blue to violet, red-orange, and finally…
Monodisperse microgels were synthesized by a microfluidic setup and used as a sacrificial template for the fabrication of "giant" hollow polyelectrolyte capsules with rigid walls consisting of covalently cross-linked polyelectrolytes and metal nanoparticles. First, a simple tubing-needle-based microfluidic system is u…
Single-molecule tracking (SMT) was applied to the evaluation of a microscopic heterogeneous structure by observing the diffusivity of guest molecules in phenyl-bridged periodic mesoporous organosilica films with one-dimensional (1D) nanoscale channels filled with template surfactant micelles. SMT clearly visualized th…
A single step, solvent-, catalyst-, and template-free synthesis process to prepare core−shell vanadium oxide−carbon nanoparticles from the dissociation of a single vanadium(V) oxytriethoxide precursor is demonstrated. The thermolysis of the VO(OC 2 H 5 ) 3 precursor in a closed reactor at 700 °C under autogenic pressu…
An achiral pi-conjugated fluorinated fused pyrazine derivative has been spread at the air/water interface, and its assembling property is investigated. It has been found that the compound, although without any long alkyl chain, could be spread as a floating film on water surface, the surface pressure of which can be c…
The protein farnesyltransferase (FTase) is a Zn(2+)-metalloenzyme that catalyzes the farnesylation reaction, i.e., the transfer of the 15-carbon atom farnesyl group from farnesyl diphosphate (FPP) to a specific cysteine of protein substrates. Oncogenic Ras proteins, which are among the FTase substrates, are observed i…
We present a combined experimental and theoretical study of the adsorption of water on the rutile TiO 2 (011)-2×1 surface, whose “brookite (001)-like” reconstruction has been recently elucidated. By using scanning tunneling microscopy and density functional theory calculations, we provide evidence that water adsorbs w…
In this research, the influence of the alkaline modification of cotton cellulose on the crosslinking with 1, 2, 3, 4 buthanetetracarboxylic acid (BTCA) is investigated. In order to anticipate changes after alkaline modification the crystallinity change was evaluated using wide angle X-ray diffraction (WAXD), iodine ad…
Holographic photopolymerization of reactively functionalized silica nanoparticles in polymer/liquid-crystal systems leads to sequestration of the silica nanoparticles in the polymeric domain of holographic polymer-dispersed liquid-crystals Bragg gratings. Excellent dispersion of the nanoparticles maintains the optical…