Materials Literature
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Imaging agents targeting amyloid beta (Abeta) may be useful for early diagnosis and follow-up of treatment of patients with Alzheimer's disease (AD). Three of five tested 2-(4'-fluorophenyl)-1,3-benzothiazoles displayed high binding affinities for Abeta plaques in AD human brain homogenates (K(i) between 2.2 and 22.5…
We proposed a kinetic model for thermal oxidation of silicon carbide, termed “silicon and carbon emission model”, taking into account the Si and C emissions from the oxidation interface, which lead to a reduction of interfacial reaction rate. We used this model to calculate oxide growth rates and found that the derive…
Herein we investigate whether QM/MM could prove useful as a tool to study the often subtle binding phenomena found within pharmaceutical drug discovery programs. The goal of this investigation is to determine whether it is possible to employ high level QM/MM calculations to answer specific questions around a binding e…
Abstract BACKGROUND: Antimicrobial packaging is a novel food packaging technology for controlling the growth of food‐borne pathogens or spoilage bacteria in ready‐to‐eat food products. Fresh fish are highly perishable foodstuffs and are extremely susceptible to microbial activities. An alginate–calcium coating incorpo…
The incorporation of four carboxylic acids or four amino groups to the upper rim of an aryl extended calix[4]pyrrole produces water-soluble receptors which are able to effectively bind aromatic N-oxides in water by a combination of hydrogen bonding, pi-pi, CH-pi, and hydrophobic interactions.
In this study, TiO 2 was modified and immobilized on polypropylene (PP) granules to prepare buoyant photocatalyst with visible light activity. The TiO 2 nano-sol was first prepared from titanium n -butoxide (Ti(OBu) 4 ) in the presence of acetyl acetone (AcAc) or acetic acid (AcOH) as an inhibiting agent and subsequen…
To study the effect of axial ligands on the electronic structure and reactivity of compound I of peroxidases and catalases, oxoiron(IV) porphyrin pi-cation radical complexes with imidazole, 2-methylimidazole, 4(5)-methylimidazole, and 3-fluoro-4-nitrophenolate as the axial ligands were prepared by ozone oxidation of i…
The synthesis and a comprehensive spectroscopic and photophysical study are presented of four alternating binaphthyl−oligothiophene copolymers (DP: 10−15 repeat units) in solution at room and low temperature and in the solid state (thin films). Detailed results are presented on absorption, emission, and triplet−triple…
The hepatitis C virus (HCV) is a single-stranded (ss) RNA virus that is responsible for chronic liver diseases, such as cirrhosis, end-stage liver disease, and hepatocellular carcinoma. Driven by the need to detect the presence of the HCV viral sequence, herein it is demonstrated for the first time that the nonlinear…
This paper deals with the problem of reactive power and harmonics in a standard medium-voltage (MV) distribution network. It proposes a simple and inexpensive solution to enhance power quality when a particular connection to the high-voltage transmission network is required. It presents the design of a hybrid active f…
Carbazole-based materials adopting the nonconjugated substitution of triphenylsilyl (-SiPh(3)) and trityl (-CPh(3)) side groups are studied as high-triplet-energy, morphologically, and electrochemically stable host materials with tunable carrier-transport properties for organic blue electrophosphorescence. The develop…
This paper proposes a combination of neural network and a bandless hysteresis controller, for a switched capacitor active power filter (SCAPF), to improve line power factor and to reduce line current harmonics. The proposed active power filter controller forces the supply current to be sinusoidal, in phase with line v…
Physicochemical forces are responsible for the swelling pressure development in saturated bentonites. In this paper, the swelling pressures of several compacted bentonite specimens for a range of dry density of 1.10–1.73 Mg/m3were measured experimentally. The clay used was a divalent‐rich Ca‐Mg‐bentonite with 12% exch…
PURPOSE: To evaluate the capability of P947, a magnetic resonance (MR) imaging contrast agent that molecularly targets matrix metalloproteinases (MMPs), to aid detection and imaging of MMPs in atherosclerotic lesions in vivo; its specificity compared with that of P1135; expression and distribution of MMPs in atheroscl…
Ytterbium reacts with 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene (1, dpp-Bian) in 1,2-dimethoxyethane (DME) to give complex (dpp-Bian)Yb(DME)(2) (2). Oxidation of 2 with an 0.5 mol equivalent of dibromostilbene affords dimeric compound [(dpp-Bian)Yb(DME)(mu-Br)](2) (3). Molecular structures of 2 and 3 were dete…
Using Fourier transform infrared spectroscopy (FTIR) we studied the overall reaction pathways and ultimate fate of dimethyl methylphosphonate (DMMP), a chemical warfare agent simulant, on a commercial nanoparticulate (approximately 20 nm) titania material. Our data show that the initial uptake occurs through both mole…
Bottom-contact n-channel OFETs based on spin-coated films of N,N′-1H,1H-perfluorobutyl dicyanoperylenediimide (PDI-FCN2) exhibit a saturation-regime mobility of 0.15 cm2 V−1 s−1 in vacuum and good air stability. These performances are attributed to the high crystallinity and to the edge-on orientation promoted by the…
With an anisole-containing polypyridylamine potential tetradentate ligand (O)L, a mu-1,2-peroxo-dicopper(II) complex [{(O)LCu(II)}(2)(O(2)(2-))](2+) forms from the reaction of the mononuclear compound [Cu(I)((O)L)(MeCN)]B(C(6)F(5))(4) ((O)LCu(I)) with O(2) in noncoordinating solvents at -80 degrees C. Thermal decay of…
Caffeine is a commonly used neurostimulant that also produces cerebral vasoconstriction by antagonizing adenosine receptors. Chronic caffeine use results in an adaptation of the vascular adenosine receptor system presumably to compensate for the vasoconstrictive effects of caffeine. We investigated the effects of caff…
This paper deals with the hardware implementation of a shunt active filter (SAF) for compensation of reactive power, unbalanced loading, and harmonic currents. SAF is controlled using an adaptive-linear-element (Adaline)-based current estimator to maintain sinusoidal and unity-power-factor source currents. Three-phase…