This paper reports density and speed of sound data for solutions of the ionic liquids (ILs) [C4mim]Cl and [C4mim][CF3SO3] in aqueous solution of 0.05 w/w amino acids of alanine, serine and proline at T = (288.15, 298.15, 308.15 and 318.15) K. From the experimental data measured, the apparent molar volume (Vϕ), isentropic compressibility ( ), and apparent molar isentropic compression ( ) have be...

The acid dissociation constants of long-chain esters of carnitine (5-hydroxy-~,trimethylammonium-butyrate) above the critical micelle concentration were determined potentiometrieally at several concentrations of added KC1. As the degree of protonation 5 increases the apparent pK values decrease owing to the increased positive charge on the micelle. The difference in pK between the neutral (zwit...

Thermal stabilities of chicken, grey lag goose (Anser anser), turkey as avian hemoglobins (Hbs); and human, bovine, sheep and horse as mammalian Hbs in hemolysate form were investigated and compared with oxygen affinities taken from literature. The thermal stability was obtained from thermal profiles using temperature scanning spectrophotometry. The buffer conditions were 50 mM Tris, pH 7.2, an...

Unilateral reversible osmotic opening of the blood-brain barrier can be produced in mice. Infusion of 1.8 molal arabinose in water at a rate of 0.64 ml/min for 30 seconds into the internal carotid artery consistently results in ipsilateral brain staining by intravascular Evans blue dye. Osmotic opening is concentration-dependent (threshold, 1.6 molal arabinose) and reversible within 4 hours. No...

Molecular configurations of the 1.0 mol dm −3 and 8.0 NaClO 4 aqueous electrolytes, shear viscosity ionic conductivity as a function molar molal concentrations solutions.