Materials Literature
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Functional characterization of a protein sequence is one of the most frequent problems in biology. This task is usually facilitated by accurate three-dimensional (3-D) structure of the studied protein. In the absence of an experimentally determined structure, comparative or homology modeling can sometimes provide a us…
The recent revelation that <i>diffracted radiance</i> is the fundamental quantity predicted by scalar diffraction theory, combined with the observation that radiance (not irradiance or intensity) is shift-invariant in direction cosine space, has lead to the development of a generalized linear systems formulation of no…
Here we describe the application of single star-shaped gold nanoparticles (nanostars) for localized surface plasmon resonant (LSPR) sensing. The gold nanostars were fabricated by a modified seed-mediated, surfactant-directed nanoparticle synthesis which is known to produce gold nanorods in high yield. Due to the sampl…
GDP-mannose hydrolase catalyzes the hydrolysis with inversion of GDP-alpha-D-hexose to GDP and beta-D-hexose by nucleophilic substitution by water at C1 of the sugar. Two new crystal structures (free enzyme and enzyme-substrate complex), NMR, and site-directed mutagenesis data, combined with the structure of the enzym…
Sea urchin spines protect the animal's body from predators and from the effect of high energy environments. The spines of urchins from different orders, families and genera have very different sizes, morphologies and microarchitectures, and the different designs of sea urchin spines reveal much about the design space…
We show that time-resolved luminescence measurements at high excitation densities can be used to study exciton annihilation and diffusion, and report the results of such measurements on films of P3HT and MEH-PPV. The results fit to an exciton-exciton annihilation model with a time independent annihilation rate γ…
We study the phenomena of laser beam propagation in azobenzene liquid crystals (azo LCs) in waveguiding configuration. We found that spatial solitons can be formed at microwatt power levels of a He-Ne laser beam. We have observed several well-known processes of nonlinear propagation such as undulation of solitons, the…
A novel chitosan fiber core/gold shell structural organic-inorganic composite was presented via a facile and eco-friendly approach. The chitosan fiber and gold/chitosan composites were characterized with the assistance of scanning electron microscopy and transmission electron microscopy observations. The chitosan fibe…
Abstract We studied experimentally the local partial density of electronic states (LPDOS) in the conduction band (CB) and in the valence band (VB) of CuGaO 2 and CuInO 2 by means of X‐ray absorption spectroscopy (XAS) and X‐ray emission spectroscopy (XES). The edges of both the CB and VB are found to be the copper s‐…
In this paper we report measurements of the complex impedance of the Heusler compounds ${\mathrm{Pd}}_{2}\mathrm{MnSn}$ and ${\mathrm{Pd}}_{2}\mathrm{MnSb}$ near the Curie temperature. From the experimental data, the complex initial magnetic permeability is obtained as a function of temperature and frequency. Both the…
Abstract Summary: The creation of nanotemplates under dynamic shear flow conditions is described. The structures used are based on the self‐organization of comb‐coil‐like diblock copolymer systems with two intrinsic length scales, resulting from combining diblock copolymers with hydrogen‐bonding amphiphiles. Rheologic…
Convective heat and mass transfer in a planar, trilayer, solid oxide fuel cell (SOFC) module is considered for a uniform supply of volatile species (80%H2+20%H2O vapor) and oxidant (20%O2+80%N2) to the electrolyte surface with a uniform electrochemical reaction rate. The coupled heat and mass transfer is modeled by st…
Abstract The thermal variation of the dielectric constant in the spin crossover complex [Fe(bpp) 2 ] [BF 4 ] 2 displays a 16 K large hysteresis loop centered around 178 K corresponding to the spin transition temperatures. Unexpectedly, the dielectric constant has a higher value in the low‐spin state. DFT calculations…
Abstract Cadmium selenide nanoparticles (CdSe NPs) were synthesized in the cavity of the cage‐shaped protein, apoferritin, by designing a slow chemical reaction, which employs tetraamminecadmium ion and selenourea. The ammonia water concentration and solution pH were optimized and the suppression of the formation of s…
B<sub>4</sub>C optical coating represents, together with Ir, Pt, SiC, one of best choice for high reflectance in the extreme ultraviolet region (EUV 160-30 nm). This material is also used in multilayer for soft X-ray applications, such as Si/B<sub>4</sub>C or W/B<sub>4</sub>C, or as interlayer in Mo/Si multilayer to a…
Arrhenius models were developed for glass viscosity within the processing temperature range for six types of commercial glasses: low-expansion-borosilicate glasses, E glasses, fiberglass wool, TV panel glasses, container glasses, and float glasses. Both local models (for each of the six glass types) and a global model…
Red emitting phosphor excited by blue-near ultra violet light emitting diode is being expected for new application of lightings. In our previous work, it was obtained that anataze- and rutile-type TiO2:Eu, and metal-Ti-O:Eu showed red emission of Eu3+ f–f transition. Mg-Ti-O:Eu showed strong emission peaked at 615 nm…
A series of poly(p-arylene butadiynylene)s containing zero, one, and two co-facial pi-pi interactions per repeat unit were synthesized and characterized. A surprisingly selective and high-yielding Diels-Alder cycloaddition of anthracene and nonsymmetric, sterically hindered anhydrides proved essential to generating th…
We report the synthesis of ternary polymer particle material systems composed of (a) a spherical colloidal particle core, coated with (b) a polyelectrolyte intermediate shell, and followed by (c) a grafted polymer brush prepared by surface-initiated polymerization as the outer shell. The layer-by-layer (LbL) depositio…
SiC nano-powder was synthesized by mechanical alloying method, and then consolidated by Spark plasma sintering without any sintering additives. Crystallite size of sintered SiC was increased from 26 to 61 nm with holding temperature, but relative density was practically fixed. Increasing of thermal and electrical cond…