Materials Literature
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Solid oxide fuel cells (SOFCs) are potentially the most efficient and cost-effective solution to utilization of a wide variety of fuels beyond hydrogen (1-7). The performance of SOFCs and the rates of many chemical and energy transformation processes in energy storage and conversion devices in general are limited prim…
Immobilized iron phthalocyanine catalysts were prepared, via two heterogenization methods: anchoring by Augustine's method and the preparation of a "ship-in-a-bottle" type catalyst by intrazeolite synthesis method. The heterogenized catalysts were applied in the oxidative destruction of 4-chlorophenol, as a common pol…
Mineralized tissues grow through biologically controlled processes in which specific macromolecules are involved. Some of these molecules, which are present in very low concentrations and are difficult to localize and characterize, become entrapped inside the mineralized tissue. Herein, a protein fragment, GP, which w…
A simple, rapid and sensitive spectrofluorometric method was developed for the determination of folic acid (FA), based on its quenching effect on the fluorescence intensity of enoxacin (ENX)-europium (<TEX>$Eu^{3+}$</TEX>) complex as a fluorescent probe. Fluorometric interaction between ENX-<TEX>$Eu^{3+}$</TEX> comple…
Abstract Nanocomposite thin films of Au–alumina with varying Au contents were synthesized by atom beam co‐sputtering. The Au content and the thickness of nanocomposite films were determined by Rutherford backscattering spectrometry. Transmission electron microscopy studies reveal the presence of Au nanoparticles with…
Mesoporous carbons with tailored pore size were prepared by using sucrose as the carbon source and silicas as the templates. The silica templates were obtained from a hydroxypropyl-<TEX>${\beta}$</TEX>-cyclodextrin-silica hybrids using ammonium perchlorate oxidation at different temperatures to remove the organic matt…
Results of the comparisons of various density functional theory (DFT) methods with different basis sets for predicting the molecular geometry of TPOP24N-Oxide macrocycle, an oxoporphyrin N-oxide, are reported in this paper. DFT methods, including M06-2X, B3LYP, LSDA, B3PW91, PBEPBE, and BPV86, are examined. Different…
Protease activated receptor-2 (PAR(2)) is one of four G-protein coupled receptors (GPCRs) that can be activated by exogenous or endogenous proteases, which cleave the extracellular amino-terminus to expose a tethered ligand and subsequent G-protein signaling. Alternatively, PAR(2) can be activated by peptide or peptid…
Abstract The synthesis and structural characterization of a first family of dendronized polycationic perylenetetracarboxylic acid diimides (PDIs) 7 , 8 , and 10 is reported. They were obtained by amide coupling reactions of pyridinium salt head groups with terminal carboxylic groups of Newkome‐dendron‐type functionali…
A microencapsulated flame retardant with a melamine‐formaldehyde shell was prepared by in situ polymerization, then incorporated into an iPP matrix with a coupling agent to manufacture multifilament yarns by melt spinning. The influence of the post‐treatment on the resulted microcapsules with an alcoholic solution was…
Abstract To improve the processability of the poly( p ‐hydroxybenzoic acid), copolyarylates containing m ‐aryl ether units were synthesized using p ‐acetoxybenzoic acid, 1,4‐diacetoxybenzene and 1,3‐bis(4'‐carboxyphenoxy)benzene by melt transesterification reaction. The structure and properties of these polyarylates w…
A simple model is developed for studying the interaction of bright excitons in semiconducting single-wall nanotubes with charged impurities. The model reveals redshift in the energy of excitonic states in the presence of impurity, thus indicating binding of free excitons in the impurity potential well. Several bound s…
Liquid marbles have opened up several potential applications including biochemical batch reaction engineering and gas sensing. To be successful candidates in these applications, the ability to prepare liquid marbles of controlled sizes and in a continuous process is crucial. This has been the missing link in the scien…
Nano-Fe(2) O(3) (magnetic) and nano-Al(2) O(3) are increasingly used in biomedical fields for cellular labeling and drug delivery, and in the industry as catalysts. However, they may also serve as carriers of toxic contaminants and negatively impact the environment and human health. In the present study, Ceriodaphnia…
The nanotube formed from stacked macrocyclic units undergoes thermally induced swelling and unswelling and mimics the action of a pump.
Single phase, lead-free thin films based on the (Na,K)NbO3–LiTaO3 solid solution near the morphotropic phase boundary are grown hydrothermally at 130 °C for the first time. Formation of the unwanted Na-rich phase normally occurring during hydrothermal synthesis of solid solution powder was successfully averted in the…
Fluorescence correlation spectroscopy (FCS) is a widely used technique to investigate the interactions and dynamics of molecules, below micromolar concentrations. Silver nanostructure (AgNS) substrates can extend the applicability of FCS to higher concentrations, which is useful for many biologically relevant reaction…
A 10-hydroxycamptothecin-encapsulated magnetic nanovehicle (HEMN) was fabricated by coencapsulating Fe(3)O(4) nanoparticles and 10-hydroxycamptothecin (HCPT) into a micelle core self-assembled from the amphiphilic copolymer methoxy-poly(ethylene glycol)-poly(d,l-lactide-co-glycolide) through a facile dialysis method.…
Poly(p-xylylene tetrasulfide) was synthesized from 1,4-bis(chloromethyl)-benzene and sodium tetrasulfide using interfacial polycondensation technique to examine the effect of methyl tributyl ammonium chloride, tetrabutyl ammonium bromide, and benzyl triethyl ammonium chloride as phase transfer catalysts. The structure…
Peptide assembly: a 2D peptide (Aβ16-22) film was produced successfully by introducing hydrated electrons into the assembly process of Aβ16-22. The interplay between experiment and theoretical calculation indicates that the film formation can be enhanced through the interactions between hydrated electrons and Aβ16-22.