Materials Literature
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Changes in the spacing of hexagonally packed cylinders in a poly(styrene- b -butadiene) copolymer film during the continual extraction of toluene under different solvent removal conditions were studied by in situ small-angle X-ray scattering (SAXS) measurements. As the solvent is removed from the film, the structure s…
Inorganic nanocrystals have a variety of applications in medicine. They may serve as contrast agents, therapeutics, and for in vitro diagnostics. Frequently, the synthesis route yields hydrophobically capped nanocrystals, which necessitates their subsequent coating to render a water-soluble and biocompatible probe. Bi…
Spinal cord injury (SCI) impairs sensory systems causing allodynia1-8. To identify cellular and molecular causes of allodynia, sensitive and valid sensory testing in rat SCI models is needed. However, until recently, no single testing approach had been validated for SCI so that standardized methods have not been imple…
We report on the design, fabrication and performance of a poly (2-methoxy-5(2′-ethylhexyloxy)- p -phenylenevinylene)/tris-(8-hydroxyquinoline)aluminum (MEH-PPV/Alq 3 ) X-ray dose detector for improving safety for cancer patients shortly before radiation therapy . The detector consists of an inexpensive (<US$ 1) organi…
In this study, two power supplies having positive/ground and negative/ground electrode output ends were used separately for electrospinning of polyacrylonitrile nanofibers. Depending on type of power supply and electrode connection, electrospinning led to different fiber diameters and deposition areas. The nozzle was…
Abstract When a mixture of liquid crystal (LC) and photo reactive monomer is irradiated by UV light, polymerization occurs and LC droplets form through phase separation, producing polymer dispersed LCs (PDLCs). Although size control of LC droplets and reduced amounts of LC in PDLC films are important in applications,…
Abstract BACKGROUND: Wastes generated in production of caprolactam (2‐oxohexamethylenimine, ε‐caprolactam) and caprolactam‐based polymers contain the unreacted monomer and its low‐molecular linear and cyclic oligomers. Application of microorganisms for biological treatment of caprolactam‐ and oligomer‐containing waste…
The formation of the molluskan shell is regulated by an array of extracellular proteins secreted by the calcifying epithelial cells of the mantle. These proteins remain occluded within the recently formed biominerals. To date, many shell proteins have been retrieved, but only a few of them, such as nacreins, have clea…
Abstract Large‐size, 9.5 cm × 9.5 cm, Ni‐Gd 0.1 Ce 0.9 O 1.95 (Ni‐GDC) anode‐supported solid oxide fuel cell (SOFC) has been successfully fabricated with NiO‐GDC anode substrate prepared by tape casting method and thin‐film GDC electrolyte fabricated by screen‐printing method. Influence of the sintering shrinkage beha…
The ground state of double perovskite oxide La2CoMnO6 (LCMO) and how it is influenced by external pressure and antisite disorder are investigated systematically by first-principles calculations. We find, on the consideration of both the electron correlation and spin-orbital coupling effect, that the LCMO takes on insu…
A perylene diimide (PDI) derivative bearing four chlorine substituents in the bay area is deposited together with pristine multiwall carbon nanotubes (MWNTs) and/or Nafion p-doped MWNTs (p-MWNTs) onto indium tin oxide (ITO) solid substrates by means of air-brushing. The resulting photoanodes are studied in photoelectr…
Abstract Single crystals of L‐Arginine Fluoride (LAF) have been grown by the slow evaporation technique, and the crystalline perfection was studied by HRXRD. Optical absorption studies reveal the lower cut off wavelength (280 nm) and the band gap (5.1 eV). The dielectric constant and dielectric loss have been measured…
We investigated the crystal growth of piperonyl (E,E)-muconate [bis(3,4-methylenedioxybenzyl) (E,E)-muconate, MDO] on inorganic crystalline substrates during vapor deposition for the control of polymer chain alignment by the subsequent solid-state photopolymerization of the MDO monomer thin films deposited on the subs…
Controllable synthesis of self-associating lauroyl-grafted chitosan with high molecular weight was realized in ionic liquid reacting media. The obtained lauroyl chitosan with different grafting degrees was characterized by FT-IR and 1H-NMR spectra. The chitosan derivatives were able to self-assemble into spherical pol…
Densely crosslinked polysiloxane, with high refractive index and high transparency, was synthesized via co-hydrolysis/condensation and then cured via hydrosilylation with a Pt catalyst. 29Si nuclear magnetic resonance (NMR) spectra were utilized to identify the process of co-hydrolysis/condensation and characterize th…
The diffusion of boron in yB2O3(1-y)SiO2 glasses with up to 8 mol% B2O3 was investigated by annealing doped layers on the inner surface of quartz glass tubes between 1700°C and 2000°C and measuring radial doping profiles by X-ray microprobe analysis and refractive index profiling subsequent to the tube collapse. By co…
${}^{75}\phantom{\rule{-0.16em}{0ex}}$As and ${}^{139}$La NMR results for LaFeAs(O${}_{1\ensuremath{-}x}$F${}_{x}$) ($x=0$, 0.025, and 0.04) are reported. Upon F doping, the tetragonal-to-orthorhombic structural phase transition temperature ${T}_{S}$, antiferromagnetic transition temperature ${T}_{N}$, and internal ma…
The magnetic properties of ATcO${}_{3}$ (A $=$ Ca, Sr, Ba) perovskites were studied from first principles using multiple-scattering theory. For each system, the most preferable magnetic order is antiferromagnetic where the magnetic moments of the nearest Tc atoms are aligned antiparallel to each other. In the case of…
A generic equation of state (EoS) is developed for the hard cylindrical disc model to describe the isotropic phase of hard cut-sphere particles introducing a correction parameter to incorporate the negative contributions from higher-order virial coefficients. The isotropic–nematic–columnar phase diagram of hard cut-sp…
Plasmonic nanodimers facilitate electromagnetic hotspots at their gap junction. By loading these gap junctions with nanomaterials, the plasmonic properties of nanodimer can be varied. In this study, we bridged the gap junction of gold (Au) nanocylinder dimer with palladium (Pd), and numerically evaluated the plasmonic…