As discussed chapter 1, cholesterol–rich domains in biomembranes, called rafts, are believed to be involved in many cellular functions [1, 2, 3, 4, 5]. Biochemical studies on the insoluble membrane fraction obtained from detergent extraction of plasma membranes show that it mainly consists of saturated lipids, such as sphingomyelin and cholesterol. The detergent insoluble fraction, known as det...

The composition-dependent change in the work-function (WF) of binary silver–potassium nanoparticles has been studied experimentally by synchrotron-based x-ray photoelectron spectroscopy (PES) and theoretically using a microscopic jellium model metals. Ag–K particles with different K fractions were produced letting beam preformed Ag pass through volume vapor. PES on individual non-supported crea...

Liquid-liquid equilibrium data were measured and analyzed for two ternary systems (biodiesel + methanol glycerol methyl palmitate glycerol). Biodiesel, produced by the conventional chemical route at 60 °C min, using soybean oil a molar rate of 10:1 potassium hydroxide concentration (KOH) 1 wt% exhibited thermal decomposition temperatures between 100 250 ºC, reaching mass loss approximately 98.8...

A simple and rapid microextraction procedure based on the application of magnetic nanoparticles and hydrophobic 1-Hexylpyridinium hexafluorophosphate [Hpy][PF6] ionic liquid (IL) was applied to trace determination of gatifloxacin. A mixture of [Hpy][PF6] and magnetic nanoparticles was injected into the sample solution containing the analyse of interest and a cloudy solution was forme...

A simple and rapid microextraction procedure based on the application of magnetic nanoparticles and hydrophobic 1-Hexylpyridinium hexafluorophosphate [Hpy][PF6] ionic liquid (IL) was applied to trace determination of gatifloxacin. A mixture of [Hpy][PF6] and magnetic nanoparticles was injected into the sample solution containing the analyse of interest and a cloudy solution was forme...

The structural and bonding properties of liquid iron–light–element–oxygen ternary systems such as Fe–H–O, Fe–C–O, Fe–Si–O, Fe–S–O under high pressure are studied by ab initio molecular dynamics simulations. H, C, O, Si, S the candidate light elements in Earth’s outer core (liquid iron is a major constituent). From our simulations, it found that O show “interstitial” type behavior while Si “subs...

Grid-scale energy storage is essential for reliable electricity transmission and renewable integration. Redox flow batteries (RFB) provide affordable scalable strategies stationary storage. But most of the current RFB chemistries are based on expensive transition metal ions or synthetic organics. Here, we report a reversible Cl 2 /Cl - redox battery through electrolysis aqueous NaCl electrolyte...

a simple and rapid microextraction procedure based on the application of magnetic nanoparticles and hydrophobic 1-hexylpyridinium hexafluorophosphate [hpy][pf6] ionic liquid (il) was applied to trace determination of gatifloxacin. a mixture of [hpy][pf6] and magnetic nanoparticles was injected into the sample solution containing the analyse of interest and a cloudy solution was formed. after ce...