The ionic liquid (IL) 1-butyl-3-methylimidazolium octyl sulfate, [C4mim][C8SO4]mediated micelle to vesicle transition in aqueous solution of a cationic Gemini surfactant(tetramethylene-1,4-bis(dimethylpentadecylammonium bromide) (14-5-14) has beeninvestigated by applying dynamic light scattering (DLS), viscosity, steady state and timeresolved fluorescence and HRTEM measurement f...

early recognition of gestational trophoblastic neoplasm (gtn) will maximize the chances of cure with chemotherapy but some patients present with many different symptoms months or even years after the causative pregnancy making diagnosis difficult. clinicians should be aware of the possibility of gtn in any reproductive age woman with bizarre central nervous system, gastrointestinal, pulmonary s...

Solvation dynamics and rotational relaxation of coumarin 153 (C-153) in mixed micelles of non-ionic surfactant, Triton X-100 and a series of cationic gemini surfactants, 12-s-12, 2Br with varying polymethylene spacer chain length (s = 3, 6, 8, 12) at different bulk mole fractions of a surfactant were studied. Studies were carried out by means of UV-Vis absorption, steady-state fluorescence and ...

The effective temperature of Saturn from 30øS to 10øN is 96.5 + 2.5 K. This value is 1.9 K higher than our preliminary estimate (Ingersoll et al., 1980). The atmospheric mole fraction of H2 relative to H2 + He is 90 + 3%. This value is derived by comparing infrared and radio occultation data (Kliore et al., this issue) for the same latitude. The high value of the effective temperature suggests ...

The ultrasonic velocities in binary liquid mixtures of carbon tetrachloride with benzene, toluene, m-xylene, ethyl benzene and chloro benzene have been measured at entire mole fraction range at 303.15K, using ultrasonic interferometer of frequency 2 MHz. Isentropic compressibilities KS, deviations of KS from ideal mole fraction mixture law ΔKS, available volumes Va, Lennard Jones potential repu...

The ability to induce morphological transitions in water-in-oil (w/o) and water-in-CO2 (w/c) microemulsions stabilized by a trichain anionic surfactant 1,4-bis(neopentyloxy)-3-(neopentyloxycarbonyl)-1,4-dioxobutane-2-sulfonate (TC14) with simple hydrotrope additives has been investigated. High-pressure small-angle neutron scattering (SANS) has revealed the addition of a small mole fraction of h...

Paper electrophoresis of the oligosaccharide fraction obtained by hydrazinolysis of human chorionic gonadotropin (HCG), which was purified from the urine of two patients with invasive mole, gave fractionation patterns different from those of normal and hydatidiform mole HCGs. Structural study of the oligosaccharides in each fraction revealed that the triantennary complex-type asparagine-linked ...

Densities of molten AgBr-AX (A = Li, Na, K, Rb, Cs; X = Br or CI), AgBr-AgCl, KBr-NaBr, KBr-CsBr, KCl-KBr, and KCl-CsBr mixtures have been measured at 0.5 mole fraction using the method of Archimedean displacement. The excess volumes of mixing are all positive, except for the AgBr-LiBr system. Attempts to relate the excess volumes of the binary AgBr-ABr systems to the second order conformal sol...

The mixed micellization behaviour of amitriptyline hydrochloride (AMT) with ionic liquid (IL) 1-methyl-3-octylimidazolium hydrochloride, [C8mim][Cl], have been investigated using electrical conductivity, at different temperatures. The non-ideal behaviour (i.e., synergistic interaction) of AMT-[C8mim][Cl] binary mixtures, explained by the deviations in critical micelle concentration (cmc) from i...