Front Matter: Volume 6648
This PDF file contains the front matter associated with SPIE Proceedings Volume 6648, including the Title Page, Copyright information, Table of Contents, Introduction, and the Conference Committee listing.
Materials Literature
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Viscoelasticity of epoxy resin/silica hybrid material prepared via sol–gel process: Considered in terms of morphology
Abstract We investigated the relationship between the morphology and viscoelasticity of epoxy/silica hybrid materials manufactured via two different processes: simultaneous formation of epoxy and silica phases and sequential formation of silica phase in the prepared epoxy phase. The glass transition phenomena of the h…
History of ardennite and the new mineral ardennite-(V)
Ardennite-(V), ideally Mn4[Al4(AlMg)][Si5V]O22(OH)6, is the analogue of ardennite, ideally Mn4[Al4(AlMg)][Si5As]O22(OH)6, with V dominant at the T4 site. The history of the discovery of ardennite is outlined, with special accent on its chemical composition; revision of the old literature evidenced that even if vanadiu…
One-Step Synthesis and Characterization of La2NiO4+δ Mixed-Conductive Oxide for Oxygen Permeation
A one-step process for the synthesis of La 2 NiO 4+ δ (LNO) mixed-conductive oxide was reported. During the process, LNO powders were synthesized via the combustion of mixtures with the desired metal ions as cation precursors and glycine as fuel. X-ray diffraction (XRD), scanning electron microscopy (SEM), dilatometry…
Nucleation kinetics, growth, solubility and dielectric studies of L‐proline cadmium chloride monohydrate semi organic nonlinear optical single crystal
Abstract Nucleation parameters such as solubility, induction period, interfacial energy and metastable zone width have been investigated for the aqueous solution growth of a semi‐organic nonlinear optical (NLO) material of L‐Proline cadmium chloride monohydrate (L‐PCCM) single crystal. Metastable zone width and induct…
First-principles calculations of hydrogen diffusion on rutile TiO2(110) surfaces
Density functional calculations are performed to study the H-atom diffusion on titanium dioxide (110) surface in the cases of water-molecule dissociation and splitting of the adjacent hydroxyl OH pair. It is shown that, when a water molecule is adsorbed at a surface oxygen-vacancy site, a fragment H atom of the water…
Construction of Viscoelastic Biocompatible Films via the Layer-by-Layer Assembly of Hyaluronan and Phosphorylcholine-Modified Chitosan
Films of hyaluronan (HA) and a phosphorylcholine-modified chitosan (PC-CH) were constructed by the polyelectrolyte multilayer (PEM) deposition technique and their buildup in 0.15 M NaCl was followed by atomic force microscopy, surface plasmon resonance spectroscopy (SPR), and dissipative quartz crystal microbalance (Q…
Influence of additional Eu3+ coactivator on the luminescence properties of Tb3Al5O12:Ce3+, Eu3+
The luminescence properties of doubly activated terbium aluminium garnet samples were investigated in the present study. Commercial Tb 3 Al 5 O 12 :Ce 3+ (TAG:Ce) shows the typical Ce 3+ ion luminescence of the allowed Ce 3+ d–f transition. Eu 3+ co-doping, however, reveals interesting results. In TAG:Ce, Eu, both Ce…
Morphology and rheological behaviors of poly(ethylene terephthalate) nanocomposites containing polyhedral oligomeric silsesquioxanes
Abstract Poly(ethylene terephthalate) (PET)/polyhedral oligomeric silsesquioxane (POSS) nanocomposites were prepared by in situ polymerization. Light scattering measurement suggested that there is significant change in molecular weight arising from gel formation by chemical crosslinking during polymerization. The ther…
Eu3(AsS4)2 and AxEu3-yAs5-zS10 (A = Li, Na): Compounds with Simple and Complex Thioarsenate Building Blocks
Eu(3)(AsS(4))(2) and A(x)Eu(3-y)As(5-z)S(10) (A = Li, Na) are the members of a new thioarsenate family. They feature As(5+) and As(3+) centers, respectively. The rhombohedral Eu(3)(AsS(4))(2) features a new structure type consisting of eight-coordinate Eu(2+) centers and AsS(4)(3-) anions, whereas the monoclinic A(x)E…
Structural and Electrical Properties of Er 2 O 3 ‐Doped Na 1/2 Bi 1/2 TiO 3 Lead‐Free Piezoceramics
Sodium bismuth titanates Na 1/2 Bi 1/2 TiO 3 (NBT) doped with 0–3 wt% Er 2 O 3 were prepared by the conventional solid‐state reaction method. The X‐ray diffraction results revealed that the sintered Er‐doped NBT ceramics exhibited a pure perovskite structure with Er 3+ concentrations ranging from 0 to 1 wt%. At a low…
Orbital magnetism and transport phenomena in two-dimensional Dirac fermions in a weak magnetic field
We discuss the orbital magnetism and the Hall effect in a weak magnetic field in two-dimensional Dirac fermion systems with an energy gap. This model is related to the graphene sheet, zero-gap organic conductors, and the $d$-density-wave state of cuprates. We found strong diamagnetism and anomalous Hall conductivity e…
Novel nanoporous membranes from regenerated bacterial cellulose
Abstract Bacterial cellulose (BC) in an NaOH/urea aqueous solution was used as a substrate material for thefabrication of a novel regenerated cellulose membrane. The dissolution of BC involved swelling BC in a 4 wt % NaOH/3 wt % urea solution followed by a freeze–thaw process. The BC solution was cast onto a Teflon pl…
The Isolation of Basic Proteins by Solid‐Phase Extraction with Multiwalled Carbon Nanotubes
Multiwalled carbon nanotubes (MWCNTs) have been employed for the first time as sorbents for the isolation of basic proteins from other protein species in biological sample matrices by solid-phase extraction (SPE). A microcolumn packed with MWCNTs was incorporated after appropriate pretreatment into a sequential inject…
Point and ring defects in nematics under capillary confinement
The textures exhibited by nematic liquid crystals confined to cylindrical capillaries under homeotropic anchoring have been studied for nearly thirty years. One of the reasons behind this maintained interest is that the processing of many high-performance fibers including carbon fibers and spider silks involves these…
Carbon nanotube‐reinforced polyacrylonitrile nanofibers by vibration‐electrospinning
Abstract Carbon nanotubes (CNTs) are thought to be perfect enhancive materials for composites. Multi‐wall carbon nanotubes were directly electrospun into polyacrylonitrile (PAN) nanofibers via both traditional electrospinning and vibration‐electrospinning. The fibers obtained were examined by scanning electron microsc…
“Hairy” Single‐Walled Carbon Nanotubes Prepared by Atom Transfer Radical Polymerization
"Hairy nano-objects" are hybrid nanostructures comprising a core surrounded by a "hairlike" corona of flexible polymer chains, the role of which is typically to improve the solubility of the core material or to improve its dispersability and adhesion in other polymer matrices. Both aspects could be particularly useful…
Weak Localization in Ferromagnetic (Ga,Mn)As Nanostructures
We report on the observation of weak localization in arrays of (Ga,Mn)As nanowires at millikelvin temperatures. The corresponding phase coherence length L phi is typically between 100 and 200 nm at 20 mK. Strong spin-orbit interaction in the material is manifested by a weak antilocalization correction around zero magn…
Kinetics of the Preferential Oxidation of CO over CuO/CeO2Catalysts in H2-Rich Gases
The influence of reaction parameters such as temperature, contact time, and O 2, CO, H 2, CO 2, and H 2 O partial pressures on the catalytic performances of 4 wt % CuO/CeO 2 in the CO-PROX process (the preferential oxidation of CO) has been investigated in a fixed-bed reactor. Catalyst appears very active (light-off a…
Relationship between Self-Association of Glycine Molecules in Supersaturated Solutions and Solid State Outcome
Small angle x-ray scattering is utilized to directly examine the formation of clusters in supersaturated solutions of glycine, in an attempt to understand their role in the nucleation process. The results suggest that the majority of glycine molecules exist as dimers in aqueous solutions, and monomers in 13% (upsilon/…