Materials Literature
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BACKGROUND: Local anesthetic drugs, such as bupivacaine, can cause severe toxicity. Lipid emulsions have been proposed and used clinically for treating such cases. Liposomes may be an alternative for overdose treatment because of their unique structures and surface charges, which allows them to act as high affinity dr…
A novel method to determine a glass transition temperature ( T g ) of spin-labeled polymer applying the continuous-wave electron spin resonance (CW-ESR) has been developed. Poly(cyclohexyl acrylate) (PCHA), polystyrene (PS), poly(methyl acrylate) (PMA), poly(propylene glycol) (PPG), and poly(ethylene glycol) (PEG) wer…
The anti-bacterial efficacy of medium-density polyethylene (MDPE) with various contents of different anti-bacterial agents was studied with respect to the effects of the anti-bacterial concentration, size and form of MDPE test-specimen, and the contact time. The three anti-bacterial agents used were carbendazim and zi…
We report on the terahertz transmission properties through a single slit in a thin metallic film. The properties are studied by comparing the transmissions of TE- and TM-polarized electromagnetic waves over a broad spectral range from the geometrical regime to the subwavelength limit. In the geometrical regime, the re…
Covalent grafting of ethynyl derivatives (-C triple bond C-H, -C triple bond C-CH3, -C triple bond C-aryl) onto H-terminated Si(111) surfaces was performed by a one-step anodic treatment in Grignard electrolytes. The electrochemical grafting of such ethynyl derivatives, which tends to form ultrathin polymeric layers,…
This paper reviews some of the main metallurgical singularities that characterise near net shape casting technologies, with special emphasis on the role that microalloying elements play in the different austenite conditioning mechanisms operating during rolling. To begin with the different mechanisms used for the refi…
Organic-inorganic silica hybrid monolithic columns were synthesized containing an allyl pendant. The ally-monolithic columns were then modified via hydrosilylation reactions to introduce further surface functionalization. The approach was demonstrated by functionalizing allyl-monolytic columns with n-octyl-dimethylsil…
On the basis of (4-carboxypiperidyl)- N -methylenephosphonic acid (4-cpmpH 3 ), four isostructural lanthanide phosphonates Ln(O 3 PCH 2 −NC 5 H 9 −COO)(H 2 O) 2 · x H 2 O [Ln = Eu( 1 ), Gd( 2 ), Tb( 3 ), Dy( 4 )] have been synthesized. All exhibit three-dimensional open framework structures, in which inorganic double…
The structures and electronic relationship of 9-, 10-, 11-, and 12-vertex closo and hypercloso (isocloso) metallaboranes are explored using DFT calculations. The role of the transition metal in stabilizing the hypercloso borane structures is explained using the concept of orbital compatibility. The hypercloso structur…
Abstract BACKGROUND: The rotational moulding of thermosetting resins is hampered by their low viscosity and the abrupt increase in their viscosity as they polymerize. This study investigates the use of poly(methylmethacrylate) (PMMA) as a rheological processing aid in reactive blends of an aromatic diepoxy resin (digl…
Laser-ablated late lanthanide metal atoms were condensed with pure hydrogen at 4 K, and new infrared absorptions are assigned to binary metal hydrides on the basis of deuterium substitution and density functional theory frequency calculations. The dominant absorptions in the 1330-1400 cm(-1) region are identified as L…
The ratio of divalent to monovalent ion concentration necessary to displace the surface-active protein, albumin, by lung surfactant monolayers and multilayers at an air-water interface scales as 2(-6), the same concentration dependence as the critical flocculation concentration (CFC) for colloids with a high surface p…
Abstract A cationic conjugated polymer (P1) containing 20 mol‐% 2,1,3‐benzothiadiazole (BT) content is synthesized through a post‐polymerization method. With a good water solubility (≈20 mg · mL−1), this polymer has shown a low inherent BT emission in aqueous solution. Formation of interpolyelectrolyte complexes betwe…
We report on magnetoresistance oscillations in superconducting ${\text{NbN}}_{x}$ nanowires synthesized through ammonia gas annealing of ${\text{NbSe}}_{3}$ precursor nanostructures. Even though the transverse dimensions of the nanowires are much larger than the superconducting coherence length, the voltage-current ch…
The electrochemical and photophysical properties of a luminescent metal center, [Os(bpy)(3)](2+), are significantly modified by encapsulation within a conducting polymer composite film. Cyclic voltammetry reveals that the encapsulation in an inherently conducting polymer, polyaniline (Pani) or polypyrrole (PPy), can d…
Abstract SnO2, Fe2O3, and BiOCl fibers were synthesized from the corresponding chloride salts through a combination of templating and solvothermal processes. All the fibers possess distinct surface morphologies and lengths up to tens or hundreds of micrometers. Significantly, the BiOCl fibers with a novel heterogeneou…
BACKGROUND: The need to have a quantitative estimate of the uncertainty of prediction for QSAR models is steadily increasing, in part because such predictions are being widely distributed as tabulated values disconnected from the models used to generate them. Classical statistical theory assumes that the error in the…
The kinetic and thermodynamic stabilities of the group 13 hydrides EH(3) (E = B, Al, Ga, In, Tl, E113) are investigated by relativistic density functional and wave function based theories. The unimolecular decomposition of EH(3) --> EH + H(2) becomes energetically more favorable going down the Group 13 elements, with…
The structure, energetics and thermal behavior of all the SiGe nanotubes in armchair and zigzag structures (n = 4-10) and two atomic arrangement types are investigated using the ab initio method and classical molecular dynamics simulations. Gearlike and puckering configurations of SiGe nanotubes are obtained. The simu…
The robust, irreversible adsorption of omega-ferrocene hexanethiolate-protected gold nanoparticles (composition ca. {Au(225)(SC6Fc)(43)}) on electrodes provides an opportunity to investigate their submonolayer and monolayer films in nanoparticle-free solutions. Observations of nanoparticle adsorption on unmodified ele…