Materials Literature
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A short analysis of lithium properties presented in this article was carried out in terms of lithium application in various systems of a fusion reactor. The article is intended for use by the engineers and researchers involved in activities on thermonuclear fusion.
Cathodoluminescence and photoluminescence techniques have been used to investigate room temperature light emission from beta-Ga(2)O(3):Eu nanostructures, which were obtained by two methods. In one of them, a mixture of Ga(2)O(3)/Eu(2)O(3) powders was used as precursor material and annealed under an argon flow. In the…
For a given number of electrons, total spin, and matching spin z-component, we construct a set that spans the many-electron spin subspace associated with these spin values. Each vector in the set is tensorially related to spin-pure vectors of six electrons or less. We show that in the limit of separated atoms coupled…
Abstract A novel structurally asymmetric bis(ether amine) monomer containing trifluoromethyl groups, 1,7‐bis(4‐amino‐2‐trifluoromethylphenoxy)naphthalene, was prepared through the nucleophilic substitution reaction of 2‐chloro‐5‐nitrobenzotrifluoride and 1,7‐dihydroxynaphthalene in the presence of potassium carbonate…
Abstract A novel adamantoxytriphenylamine‐containing diamine monomer, 4‐(1‐adamantoxy)‐4′,4″‐diaminotriphenylamine, was synthesized from readily available reagents. Two series of novel electroactive aromatic polyamides and polyimides with bulky 4‐(1‐adamantoxy)triphenylamine moieties were prepared from the newly synth…
“Click”able monomer and polymers based on 3,4-propylenedioxythiophene, ProDOT, which can be functionalized either at the monomer stage or after the polymerization, were synthesized and characterized for the first time. The solubility of these polymers can be fine-tuned from organic to aqueous solvents by functionaliza…
Heat capacity and anisotropic thermal expansion were measured for $\text{Ba}{({\text{Fe}}_{1\ensuremath{-}x}{\text{Co}}_{x})}_{2}{\text{As}}_{2}$ $(x=0,0.038,0.074)$ single crystals. Thermal expansion is anisotropic and, in tetragonal phase, is significantly higher along the $c$ axis. Previously reported phase transit…
Abstract The determination of functional groups on complex polymer surfaces by X‐ray photoelectron spectroscopy (XPS) can be improved considerably by derivatization reactions. Simple polymers containing hydroxyl groups or amino groups were investigated as reference materials for the derivatization with trifluoroacetic…
Abstract Thermoformable bionanocomposites of chitin whisker‐ graft ‐polycaprolactone (CHW‐ g ‐PCL) were synthesized by initiating the ring‐opening polymerization of caprolactone monomer onto the CHW surface under microwave radiation. In this case, the “graft from” strategy contributed to long and dense “plasticizing”…
DNA-coated Au nanoparticles have myriad applications as versatile building blocks in nanomaterials assembly, powerful amplification tags for bioanalysis, and promising new approaches to medical therapeutics. Characterization, control, and a thorough understanding of the DNA surface interface are essential in the devel…
A density functional theory study is presented on changes in band gap effects of nanodiamonds (hydrogen terminated diamond-like molecules, diamondoids) depending on size, shape, and the incorporation of heteroatom functionalities. Strong quantum confinement effects were identified at particle sizes from 0.5 to at leas…
We report the layer-by-layer coating of living fungi cells (Saccharomyces cerevisiae and Trichoderma asperellum) with polyelectrolytes poly(allylamine hydrochloride)/sodium poly(styrene sulfonate) and bovine serum albumin/DNA and citrate-stabilized gold and silver nanoparticles. It was found that the nanoparticles wer…
Accurate measurement of photon flux from an X-ray source, a parameter required to calculate the dose absorbed by the sample, is not yet routinely available at macromolecular crystallography beamlines. The development of a model for determining the photon flux incident on pin diodes is described here, and has been test…
We report coherent manipulation of S=10 Fe8 single-molecule magnets. The temperature dependence of the spin decoherence time T2 measured by high-frequency pulsed electron paramagnetic resonance indicates that strong spin decoherence is dominated by Fe8 spin bath fluctuations. By polarizing the spin bath in Fe8 single-…
Abstract A series of polyurethane (PU) polymers cross‐linked laterally by pentaerythritol and polyethyleneglycol (PEG) spacers were compared with linear PU. The PU was composed of 4,4′‐methylenebis(phenylisocyanate) (MDI), poly(tetramethyleneglycol), 1,4‐butanediol (BD), pentaerythritol, and PEG‐200 as a spacer. PEG‐2…
We designed four polymeric ligands for semiconductor quantum dots and synthesized these macromolecular constructs in four steps, starting from commercial precursors. These ligands have a poly(methacrylate) backbone with pendant thiol groups and poly(ethylene glycol) chains. The thiol groups anchor these ligands on the…
The phase-segregated nature of polyurethanes allows meaningful connections to be made between morphological and physical properties. We have taken advantage of this behavior by synthesizing a series of polyurethanes with varying extents of crystallinity and studying their morphologies in both the unstrained and deform…
The synthesis and upconversion luminescence properties upon a 980 nm pump of cubic Lu 1.88 Yb 0.1 Er 0.02 O 3 nanocrystals with various shapes, e.g., nanorods, nanosheets, and nanoparticles, are studied. It is observed that with decreasing size of the nanocrystals, the relative intensity of the upconverted red emissio…
Abstract Gold nanoprobes immobilized with fluorescein‐hyaluronic acid (HA) conjugates are fabricated and utilized for monitoring intracellular reactive oxygen species (ROS) generation in live cells via nanoparticle surface energy transfer. A bio‐inspired adhesive molecule, dopamine, is used to robustly end‐immobilize…
Sol gel obtained YZS (Yttria Stabilized Zirconia) nanocrystals have different morphologies when they grow on an $α$-alumina substrate after thermal treatment. When the substrate has planar defects, the nanocrystals grow in height and are narrow with a crystallographic orientation [111] in the vertical direction, while…