A major question in G protein-coupled receptor signaling concerns the quaternary structure required for signal transduction. Do these transmembrane receptors function as monomers, dimers, or larger oligomers? We have investigated the oligomeric state of the model G protein-coupled receptor rhodopsin (Rho), which absorbs light and initiates a phototransduction-signaling cascade that forms the ba...

The goal of the current study was to examine the formation of phospholipids, 1-radyl-2-lysosn-glycero-phospholipids (lyso-PL) and 2-acetylated phospholipids (such as PAF) as well as mechanisms responsible for generating these phospholipids in bronchoalveolar lavage fluid (BAI.F) from allergic subjects challenged with antigen. Bronchoalveolar lavage was performed in normal and allergic subjects ...

Cotton fibers were treated with titanium sulfate, urea and hexadecyl trimethyl ammonium bromide by low temperature hydrothermal method. The surface morphology, chemical structure, thermal stability and optical properties of cotton fibers before and after treatments were studied by scanning electron microscopy (SEM), transmission electron microscopy(TEM), Fourier transform infrared spectroscopy ...

A new chitinase isozyme (Chitinase A), which had only one optimum pH toward a long substrate, glycolchitin, was purified from the peel of yam tuber by CTAB (hexadecyl trimethyl ammonium bromide) treatment and ammonium sulfate fractionation, followed by column chromatography on DEAE-Cellulofine A-500, chromatofocusing, and gel filtration on Sephacryl S-100. The molecular weight was 28,000 by SDS...

Haemophilus parasuis strains isolated from the noses of apparently healthy animals and from animals with pathological conditions were examined for the presence of a capsule, for their ability to agglutinate in acriflavine or after boiling, and for their peptide profile after polyacrylamide gel electrophoresis (PAGE). The capsule was identified by precipitation against hexadecyl trimethylammoniu...

Three-dimensional silicon carbide-based frameworks with hierarchical micro-, meso-, and macroporous structures (3MPSiC) were prepared by a template method with subsequent carbonization via an aerosol spray drying method. The micropores were derived from partial vaporization of Si atoms during the carbonization process, whereas the meso- and macropores were generated by self-assembly of the stru...

The current investigation aimed to evaluate the transdermal potential of novel testosterone propionate (TP) ethosomes and liposomes prepared by surfactant modification. The effect of hexadecyl trimethyl ammonium bromide and cremophor EL-35 on the particle size and zeta potential of the prepared vesicles was investigated. The entrapment efficiency and stability, as well as in vitro and in vivo s...

Development of highly efficient low-molecular weight gelators (LMWGs) for safe energy storage materials is great demand. Energy as fuel gels are often achieved by construction hybrid organic frameworks capable multiple noncovalent interactions in self-assembly, which allow tuning required properties at the molecular level altering individual building blocks LMWG. However, LMWGs have limited rec...

A validated ion chromatographic method was developed and applied for the determination of the maximum solubility of pyridinium ionic liquids in several aromatic solvents. Elution was performed on a Metrosep C3-150 prototype column at 40°C with acetonitrile-water at a flow rate of 1.0 mL min(-1). Mixtures of pyridinium ionic liquids and aromatic solvents were diluted with acetonitrile and aceton...