Materials Literature
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We perform histogram-reweighting grand canonical Monte Carlo simulations of the Lennard-Jones fluid confined between two parallel hard walls and determine the vapor-liquid critical and coexistence properties in the range of σ≤H≤6σ and 10σ≤Lx,Ly≤28σ, where H is the wall separation, Lx=Ly is the system size and σ is the…
We report the systematic investigation of polarized Raman scattering on individual crystalline GaP nanowires (NWs) with diameters $40<d<600\text{ }\text{nm}$. At small diameter, $d<70\text{ }\text{nm}$, the NWs are found to act like a nearly perfect dipole antenna that leads to a polarized scattering intensity functio…
In this study, three kinds of two-component adhesive glues were prepared, namely, gel-dext glue made from modified gelatin and dextran, gel-HES glue made from modified gelatin and hydroxyethyl starch (HES), and chit-dext glue made from chitosan and modified dextran. Upon mixing the two-component solution together cros…
Abstract A comparison of the reductive adsorption behavior of 4‐sulfophenyl diazonium salt and subsequent electrochemical reactivity on gold relative to carbon was studied with some significant differences observed. The ability of the 4‐sulfophenyl layer adsorbed onto gold to block access of the redox probe ferricyani…
The reactions of small gold cluster cations Au(x)(+) (x=2-6) with CH(4) were studied by joint gas-phase kinetics and first-principles density functional theory calculations. The experimentally obtained temperature-dependent low pressure rate constants were analyzed by employing the Lindemann energy transfer model for…
TiO(2) nanocomposites modified with the ionic liquid [Bmim]OH are synthesized by a hydrothermal procedure. X-ray diffraction, Zeta-potential measurement, TEM, thermogravimetric analysis, photoluminescence, UV/Vis, FTIR, and X-ray photoelectron spectroscopy are used to characterize the TiO(2) nanocomposites. The TiO(2)…
Since Lehn introduced the concept in the 1990s, supramolecular polymers have been developed rapidly by several research groups. Supramolecular polymers should be key materials for establishment of a sustainable society. This short review describes briefly hydrogen-bonded and coordination supramolecular polymers, and t…
The spun bond process is widely used to produce nonwoven fabrics. Components of a spunbond process typically include a polymer feed, an extruder, a metering pump, a die assembly, a filament spinning, a drawing and deposition system, a web formation, a bonding zone, and a winding. Spunbond products are variously used i…
We report the high-pressure synthesis of the whole series of orthorhombic perovskites ${\text{Sr}}_{1\ensuremath{-}x}{\text{Pb}}_{x}{\text{RuO}}_{3}$ $(0.0\ensuremath{\le}x\ensuremath{\le}1.0)$. The high-pressure products have been characterized by x-ray powder diffraction. Systematic measurements of magnetic and tran…
The photophysical aspects of noncovalently linked fullerenes C(60) and C(70) with a designed metallophthalocyanine, namely, zinc-2,3,9,10,16,17,23,24-octakis-(octyloxy)-29H,31H-phthalocyanine (1) have been investigated employing various spectroscopic tools such as UV-vis absorption spectrophotometry, steady state and…
Despite the recent interest in ``organic spintronics,'' the dominant spin relaxation mechanism of electrons or holes in an organic compound semiconductor has not been conclusively identified. There have been sporadic suggestions that it might be hyperfine interaction caused by background nuclear spins, but no confirma…
Abstract A series of well‐defined amphiphilic star graft copolymers consisting of hydrophilic poly(acrylic acid) backbone and hydrophobic poly(propylene oxide) side chains were synthesized by the sequential reversible addition‐fragmentation chain transfer (RAFT) polymerization and atom transfer nitroxide radical coupl…
Fullerene-based bulk heterojunction solar cells were fabricated, and the electronic and optical properties were investigated. C60 were used as n-type semiconductors, and porphyrin, CuInS2 and diamond were used as p-type semiconductors. An effect of exciton-diffusion blocking layer of perylene derivative on the solar c…
Some marginally stable proteins undergo microsecond time scale folding reactions that involve significant populations of partly ordered forms, making it difficult to discern individual steps in their folding pathways. It has been suggested that many of these proteins fold non-cooperatively, with no significant barrier…
A series of Ni/MgO catalysts have been prepared by a urea–nitrate combustion method, studied for the ethanol steam reforming, and compared with Ni/ZnO and Ni/Al2O3. The results show that Ni/MgO is superior to the latter two types of catalysts, especially in terms of H2 yield. Influential factors, including Ni loading,…
The results from PFG NMR studies of several tetraalkylammonium−silica mixtures are reported. pH data of these mixtures correlate well with previously reported literature. 1 H NMR shows line broadening and shifting of resonances for hydrogen atoms on the periphery of the TAA cations as the silica content is increased.…
Photodynamic therapy (PDT) is an emerging approach for the treatment of tumor diseases that has received growing interest in the past few years. In this study, we constructed liposomal photosensitizers (PS) for PDT by shoehorning as light-harvesting "antenna" molecules and dense [60]fullerene (C60) into lipid membrane…
BACKGROUND: Cytoplasmic pH homeostasis in Escherichia coli includes numerous mechanisms involving pH-dependent catabolism and ion fluxes. An important contributor is transmembrane K+ flux, but the actual basis of K+ compensation for pH stress remains unclear. Osmoprotection could mediate the pH protection afforded by…
Abstract Detecting subtle cellular activities that occur dynamically as regulated temporally and spatially by molecular machinery is of obvious importance in fundamental biology as well as in drug discovery. Additionally, it demands fast and sensitive detection modality. The emerging nanoelectronic biosensors based on…
Ru and Pt-Ru (Pt:Ru = 1:1) nanoparticles supported on carbon black were prepared by the borohydride reduction method using oleylamine as a stabilizer in an anhydrous ethanol solvent. We investigated the effect of Pt segregation to the surface of alloy nanoparticles on the methanol oxidation reaction (MOR). As-prepared…