Materials Literature
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We show theoretically plasmonic antennas based on two-step chemical synthesized silver nano-flags constructed by a silver nanowire and a nanoplate. The silver nano-flag antennas exhibit high polarization sensitivity and diversity of spectral signatures dependent on the structural parameters arising from the observed m…
Fluorescence spectroscopy is an important tool for the characterization of protein folding. Often, a protein is labeled with appropriate fluorescent donor and acceptor probes and folding-induced changes in Förster Resonance Energy Transfer (FRET) are monitored. However, conformational changes of the protein potentiall…
A novel family of nonadentate ligands based on the (5,6-diphenyl-1,2,4-triazin-3-yl)-picolinamide donor moiety has been synthesized from simple starting materials in high yield and purity. This group of ligands is an addition to the neutral nonadentate group but the first to incorporate 1,2,4-triazine. Their ability t…
Abstract Ion‐imprinted chitosan (CS) microspheres (MIPs) were prepared with Cu(II) as a template and epichlorohydrin as a crosslinker for the selective separation of Cu(II) from aqueous solution. The microspheres showed a higher adsorption capacity and selectivity for the Cu(II) ions than nonimprinted chitosan microsp…
Enamel matrix derivative (EMD) may enhance periodontal wound healing by inducing angiogenesis. We sought to investigate the effect and the mechanism of action of EMD on vascular endothelial growth factor (VEGF) production by human gingival fibroblasts. Cells were stimulated with EMD, transforming growth factor-β1 (TGF…
This work aims to study the effect of pretreatment of wool fabrics with two imidazolium-based ionic liquids to impart durable antimicrobial properties. The used ionic liquids, cationic in nature, were ionically bonded to the anionic sites along the keratin macromolecules. These anionic sites have been enriched via tre…
We report the deformation behavior of single-crystal InP(100) micropillars, measuring about 1 μm in diameter and 2 μm in height, subjected to uniaxial compression at room temperature. The engineering stress-strain results indicated that the yield strength of InP pillar is about 2.5 GPa, and the presence of a drastic s…
Enhancement-mode AlGaN/GaN high-electron mobility transistors (HEMTs) were realized by applying the O2and N2O plasma oxidation method to the AlGaN Schottky layers. After the postannealing process, the threshold voltageVthof conventional depletion-mode GaN HEMTs was -3.1 V, and this value was shifted to +0.3 V when eit…
We consider the Cahn-Hilliard equation on a manifold with conical singularities. We first show the existence of bounded imaginary powers for suitable closed extensions of the bilaplacian. Combining results and methods from singular analysis with a theorem of Clément and Li we then prove the short time solvability of t…
Design of 1-D submicrometer periodic gratings aimed at the enhancement of the short-circuit current density in thin-film silicon solar cells is investigated. A rigorous full-wave analysis is carried out to determine the absorption in amorphous (a-Si:H) and microcrystalline (μc-Si:H) silicon solar cells on substrates w…
Bacteriochlorins are attractive candidates as photosensitizers for photodynamic therapy (PDT) due to their intense absorption in the near-infrared (NIR) region of the spectrum where light transmission through tissue is maximal. Many naturally occurring bacteriochlorins are inherently unstable due to adventitious atmos…
Focusing on a paradigmatic small system consisting of two coupled damped oscillators, we survey the role of the Lévy-Itô nature of the noise in the thermal conductance. For white noises, we prove that the Lévy-Itô composition (Lebesgue measure) of the noise is irrelevant for the thermal conductance of a nonequilibrium…
Deposition of vertical, cone-shaped plasmonic nanorod arrays onto sub-50 nm polythiophene films on Ag substrates is shown to result in significant absorption enhancement (>12 at the polythiophene band edge) and spectral broadening (more than 250 nm increase) relative to polythiophene/Ag films without plasmonic nanorod…
Three ternary liquid systems, {dodecane + butylbenzene + [bmim]PF 6, [hmim]PF 6, or [omim]PF 6 }, were studied at 313 K and 333 K and atmospheric pressure. Equilibrium tie-line data were measured and plotted for all systems. The effects of the alkyl group in 1-alkyl-3-methylimidazolium hexafluorophosphate, temperature…
Abstract This article describes polycrystalline diamond from the Erzgebirge ultrahigh‐pressure metamorphic (UHPM) terrane of the Bohemian massif related to the Variscan (340 Ma) continent–continent collision. The foils polycrystalline diamond included in zircon were prepared with focused ion beam (FIB) and studied wit…
Reverse vesicles exhibiting functions similar to those of normal vesicles have been constructed through the self-assembly of TTF/CBPQT(4+)-based pseudo[2]rotaxanes in a nonpolar solvent. The ends of the threads of the pseudo[2]rotaxanes are attached with a Fréchet-type G-3 dendron and a hydrogen-bonded arylamide folda…
The distribution of breakdown times of thin film dielectrics, stressed in a constant voltage mode, is generally interpreted in terms of percolation theory of dielectric breakdown. The percolation model suggests that relative distribution of failure times (normalized to the mean) should narrow down considerably for thi…
Abstract Physicists have predicted and confirmed that metal nanoparticles (NPs) with a diameter between 1 and 10 nm can display electronic structures that reflect the electronic band structure of the NPs and can exhibit extraordinary optical properties. These physicists have focused on developing silica nanotube (NT)…
Catechol-O-methyltransferase (COMT) degrades catecholamines, such as dopamine and epinephrine, by methylating them in the presence of a divalent metal cation (usually Mg(II)), and S-adenosyl-L-methionine. The enzymatic activity of COMT is known to be vitally dependent on the nature of the bound metal: replacement of M…
Pulsed laser ablation in liquid (PLAL) has been well established as a facile method to produce nanoparticles from bulk materials, but it is still insufficient for fabricating anisotropic and complex nanostructures, especially without the use of surfactants. Here, we demonstrate that silver (Ag) nanosheets can be produ…