Materials Literature
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Abstract Polyacrylamide was photografted on solution‐cast poly(3‐hydroxybutyric acid‐ co ‐3‐hydroxyvaleric acid) (PHBV) films (amide‐PHBV), on which amide groups were transformed into amine groups through Hofmann degradation reaction (amine‐PHBV), followed by collagen coupling reaction to prepare collagen‐modified PHB…
Abstract Nanocomposites of isotactic polypropylene (iPP) and multiwalled carbon nanotubes (MWCNTs) with various contents of MWCNTs were fabricated by double molding techniques. X‐ray diffraction measurements reveal a development of α‐crystal with lamellar stacks having a long period of 150 Å in the neat iPP that incre…
Failure mechanism of a multilayer ceramic capacitor (MLCC) made of a low‐fire BaNd 2 Ti 4 O 12 (BNT)+ZnO–B 2 O 3 (ZB) dielectric with an inner pure silver electrode at elevated temperatures and voltages has been investigated. A nonlinear current–voltage leakage characteristic is found when the degradation of MLCC occu…
A reaction between nickel(II) sulfate and hydrazine in aqueous solution yields blue crystals of [Ni(6)(N(2)H(4))(6)(SO(4))(4)(OH)(2)(H(2)O)(8)](SO(4))(H(2)O)(10). The compound has been characterized by single-crystal and powder X-ray diffraction, vibrational spectroscopy, as well as variable-temperature magnetic susce…
Abstract A bioflocculant, quaternized carboxymethyl chitosan (QCMC), was developed by the quaternization of N,O‐carboxymethyl chitosan (N,O‐CMC) and characterized by FTIR, 1 H‐NMR, GPC, and potentiometry. The efficiency of the removal of chemical oxygen demand (COD) in printing wastewater by this flocculant was furthe…
We report a study of localized surface plasmon resonance (LSPR) in single Au nanowires (NWs) created by atomic force microscopy nanolithography with widths and thicknesses of less than 110 and 30 nm, respectively, and lengths of a few micrometers. Two LSPR peaks at around 630 and 490 nm in wavelength are observed, and…
Ternary Cu/ZnO/<TEX>$Al_2O_3$</TEX> catalysts were prepared by a co-precipitation method. The precursor structures were monitored during the aging. The first precipitate structure was amorphous georgeite, which transformed into the unknown crystalline structure. The transition crystalline structure was assigned to the…
Abstract Polyaniline micro‐ or nanostructures have been widely investigated due to their unique physical and chemical properties. Although several studies have reported the synthesis of polyaniline microspheres and nanotubes, their mechanisms of formation remain controversial. This study reports our observation of the…
We have performed molecular dynamics simulations of cascade damage in the gadolinium pyrochlore Gd₂Zr₂O₇, comparing results obtained from traditional simulation methodologies that ignore the effect of electron-ion interactions with a 'two-temperature model' in which the electronic subsystem is modeled using a diffusio…
Abstract Multiwalled carbon nanotube/rigid‐rod polyimide composite films have been prepared by casting a solution of precursor polymer (polyamide acid) containing multiwalled carbon nanotubes (MWNTs) into thin films, followed by a thermal imidization treatment. The composite films were characterized by FTIR, TEM, DSC,…
We introduce a one-step procedure of bending nanopillars, which simply involves oblique metal deposition at a tilted angle of 45 degrees on the pillars by thermal evaporation. The face selection in the bending procedure was determined by the nature of residual stress generated in the metal film during evaporation. If…
Multilayers of nanoburger structures of silver island films-SiO(2)-silver island films (SIFs-SiO(2)-SIFs) were used as substrates to study the fluorescence of close-proximity fluorophores. Compared to single-layered SIFs, multilayer nanoburgers exhibit several distinctive properties including a significantly enhanced…
The genomes of Bacillus cereus and its closest relative Bacillus anthracis each contain two LmbE protein family homologs: BC1534 (BA1557) and BC3461 (BA3524). Only a few members of this family have been biochemically characterized including N-acetylglucosaminylphosphatidyl inositol (GlcNAc-PI), 1-D-myo-inosityl-2-acet…
Highly monodisperse polystyrene (PS) nanospheres were fabricated by surfactant-free emulsion polymerization in water using styrene, 2,2'-azobis(2-methyl propionamidine) dihydrochloride (AIBA), and poly(vinyl pyrrolidone) (PVP). The size and distribution of the PS nanospheres were systematically investigated in terms o…
Abstract Copper nanoparticle was synthesized in the presence of heptadecafluorononanoic acid by the conventional solution immersion method at room temperature from the copper plate, as a resource material. The bulk etching rate was calculated by the weight loss method. The pale green colored Cu-HDFN was characterized…
Starting from the second law of thermodynamics applied to an isolated system consisting of the system surrounded by an extremely large medium, we formulate a general nonequilibrium thermodynamic description of the system when it is out of thermal and mechanical equilibrium with the medium. Our approach allows us to id…
Abstract The composites of solution polymerized styrene‐butadiene rubber (SSBR) filled with SiO 2 /carbon black (CB) were prepared by reaction blending. The mechanical and antistatic properties were studied. The morphology and dispersion of the two kinds of nano‐fillers in the composites were observed. The results sho…
We have theoretically investigated the electronic and magnetic properties of graphene whose zigzag edges are oxidized. The alteration of these properties by adsorption of ${\text{H}}_{2}\text{O}$ and ${\text{NH}}_{3}$ molecules has been considered. It was found that the adsorbed molecules form a cluster along the oxid…
The synthesis and characterization of gold nanoparticles coated by Gd-chelate (GdL@Au) is described, where L is a conjugate of DTPA (DTPA = diethylenetriamine-N,N,N',N",N"-pentaacetic acid) and 4-aminothiophenol. These particles are obtained by the replacement of citrate from the gold nanoparticle surfaces with gadoli…
We analyze the magnetic behavior of well-characterized, precipitate-free ${\text{Ga}}_{1\ensuremath{-}x}{\text{Mn}}_{x}\text{N}$ thin films containing Mn at higher levels than previously attained; up to $x=0.36$. This level is above the percolation threshold ${x}_{c}$ for nearest-neighbor cations, such that exchange b…