Materials Literature
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The unique behaviors of Nafion nanothin films with thicknesses of 10 nm (ultrathin) and 160 nm (thin) were evaluated using variable-temperature and variable-humidity solid-state 1 H NMR spectroscopy. These unprecedented measurements of nanothin films stacked within an NMR rotor represent a remarkable experimental achi…
A series of two conjugates with La2@C80 and subphthalocyanine (SubPc) have been prepared and characterized by means of cyclic voltammetry, absorption, fluorescence, and femtosecond resolved transient absorption spectroscopy. The strong electron-donating character of La2@C80 is essential to power an intramolecular elec…
Liquid crystals are of technological interest as they allow for optical effects which can be electrically controlled. In this paper we present an electro-optical device consisting of nematic liquid crystals addressed by an electrode structure consisting of thin films of polymer wrapped single walled carbon nanotubes (…
Seven prototypical microporous titanosilicates have been studied by multinuclear solid-state NMR (SSNMR) spectroscopy, representing four typical Ti environments: square-pyramidal TiO 5 units (natisite, AM-1, ETS-4), edge-shared brookite-type TiO 6 chains (AM-4), cubane-type Ti 4 O 16 clusters (sitinakite, GTS-1), and…
Abstract Cobalt oxide nanostructure (CoOxNS) deposited on the glassy carbon (GC) electrode surface is proposed as a novel electrocatalytic system for the reduction of para‐Nitrophenol. Cyclic voltammetry, electrochemical impedance spectroscopy, atomic force microscopy and scanning electron microscopy were used for cha…
Polymeric chitosan-poly(D,L-lactide-co-glycolide) nanoparticles loaded with benomyl as anticancer drug formulation against multidrug-resistant EMT6/AR1 cells were synthesized by amine-carboxylate reaction. Using transmission electron microscopy, the average size of chitosan-poly(D,L-lactide-co-glycolide) nanoparticles…
BACKGROUND: Magnetite nanoparticles (MNPs) have been widely used as contrast agents and have promising approaches in cancer treatment. In the present study we used Ehrlich solid carcinoma (ESC) bearing mice as a model to investigate MNPs antitumor activity, their effect on expression of p53 and p16 genes as an indicat…
Porous media are often modeled as systems of overlapping obstacles, which leads to the problem of two percolation thresholds in such systems, one for the porous matrix and the other for the void space. Here we investigate these percolation thresholds in the model of overlapping squares or cubes of linear size k > 1 ra…
Graphics processing units (GPUs) are increasingly common in both safety-critical and high-performance computing (HPC) applications. Some current supercomputers are composed of thousands of GPUs so the probability of device corruption becomes very high. Moreover, the GPU's parallel capabilities are very attractive for…
Purpose – The purpose of this paper is to address the problems of interaction of tensile stress-waves with polyurea/fused-silica and fused-silica/polyurea interfaces, and the potential for the accompanying interfacial decohesion. Design/methodology/approach – The problems are investigated using all-atom non-equilibriu…
The advent of polymeric materials has significantly promoted the development and rapid growth of various technologies in biomedical applications, such as tissue engineering and controlled drug and gene delivery. Water‐soluble polypeptides bearing functional side chains and adopting stable secondary structures are a ne…
Monolayers of tin (stannanane) functionalized with halogens have been shown to be topological insulators. Using density functional theory (DFT), we study the electronic properties and room-temperature transport of nanoribbons of iodine-functionalized stannanane showing that the overlap integral between the wavefunctio…
Abstract We investigate the influence of the deposition parameters for intrinsic amorphous silicon absorber layers on light‐induced degradation (LID) of thin‐film silicon solar cells. The focus is on absorber layers with different bandgaps: on one side, solar cells with a wide‐bandgap absorber layer that provides open…
Stability of metal–organic frameworks (MOFs) under humid environments is of particular interest for their potential commercial and industrial uses.
In this paper, we introduce an easy multiscale approach for the fabrication of polymer microlens arrays through a self-assembling process driven by the electrohydrodynamic (EHD) pressure. This method represents a simple alternative to the conventional soft lithography techniques. A thin layer of liquid polymer is depo…
A series of new metal-organic frameworks (MOFs) based on a triangular tri(4-pyridylphenyl)amine (TPPA) ligand that possess novel structures and features, namely [Co2(TPPA)2(1,3-bdc)2(H2O)]n (); [Zn(TPPA)(1,3-bdc)]n (); [Zn6(TPPA)2(betc)(Hbetc)2(H2betc)(H2O)6·7H2O·2DMA]n () and [Cu(TPPA)(NO3)2(H2O)]·2H2O]n () (1,3-H2bd…
The critical behavior near the continuous paramagnetic to ferromagnetic transition in a single crystal of ${\mathrm{La}}_{0.75}{\mathrm{Pr}}_{0.25}{\mathrm{Co}}_{2}{\mathrm{P}}_{2}$ has been determined based on high-resolution bulk magnetization data near ${T}_{C}$ \ensuremath{\sim} 167 K, where long-range order is es…
N-Glycosylation is one of the predominant posttranslational modifications, which is found in all three domains of life. N-Glycosylation has been shown to influence many biological aspects of proteins, like protein folding, stability or activity. In this study we demonstrate that the archaellum filament subunit FlaB of…
AlGaN/GaN high electron mobility transistors (HEMTs) irradiated with 1.8-MeV protons show more relative degradation in RF power/current gain, cutoff frequency fT, and maximum oscillation frequency fmaxthan DC transconductance. These result from radiation-induced increases in fast bulk and surface trap densities, as we…
Mole fraction solubilities are reported for 1,4-dichloro-2-nitrobenzene dissolved in 24 organic solvents of varying polarity and hydrogen-bonding character. The experimental data are used to calculate Abraham solute descriptors. The calculated solute descriptors describe the experimental data to within an overall aver…