Results 201 to 210 of about 29,068 (249)
Large Solvent-Dependent Rate Enhancement of Autocatalytic Hydrolysis of Alkyl and Aryl Thiosulfates. [PDF]
ChemistryOpenAmin FB, Kressler KM, Ferguson GS.
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Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2011
The purpose of this work is to determine the values of critical premicelle concentration (CPMC), first critical micelle concentration (FCMC) and second critical micelle concentration (SCMC) of surfactants using a common spectrofluorophotometer by recording resonance Rayleigh scattering (RRS) signal without any probe.
Yan Shi, Hong Qun Luo, Nian Bing Li
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The purpose of this work is to determine the values of critical premicelle concentration (CPMC), first critical micelle concentration (FCMC) and second critical micelle concentration (SCMC) of surfactants using a common spectrofluorophotometer by recording resonance Rayleigh scattering (RRS) signal without any probe.
Yan Shi, Hong Qun Luo, Nian Bing Li
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Critical micelle concentrations of gangliosides
Biochemistry, 1979The micellar properties of mixed, bovine gangliosides and purified galactosyl-N-acetylacetylgalactosaminyl (N-acetylneuraminyl) galactosylglucosylceramide were studied by gel filtration, equilibrium dialysis, and band and boundary centrifugation in sucrose gradients.
S, Formisano +4 more
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Ferguson Principle and the Critical Micelle Concentration
Journal of Pharmaceutical Sciences, 1963The thermodynamic activity values of a series of quaternary ammonium salts were calculated through the use of critical micelle concentrations. The correlation of these thermodynamic activities to the published values of their bactericidal activities is shown through application of the Ferguson principle.
B, ECANOW, F P, SIEGEL
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Interfacial properties and critical micelle concentration of lysophospholipids
Biochemistry, 1989The critical micelle concentration (cmc) of several lysophospholipids and of a lysophospholipid analogue was determined from surface tension measurements using the maximum bubble pressure method and/or 31P NMR. The use of the maximum bubble pressure method has now been extended to micromolar concentrations of surfactant, and the experimental parameters
R E, Stafford, T, Fanni, E A, Dennis
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Confinement induced critical micelle concentration shift
The Journal of Chemical Physics, 2007In this work, extensive lattice Monte Carlo simulations were performed to investigate the influence of confinement on critical micelle concentration (CMC). It is found that the CMC of surfactants in a confined space is shifted from its bulk value, and the shift is affected by the presence of the confining boundaries, which induces both the finite size ...
Xianren, Zhang +2 more
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The critical micelle concentration of tetraethylammonium perfluorooctylsulfonate in water
Journal of Colloid and Interface Science, 2006The aggregation characteristics of tetraethylammonium perfluorooctylsulfonate in water were studied by several techniques: conductivity, pH, ion-selective electrodes, and surface tension. It was concluded that the aggregation process is gradual and starts with the formation of oligomers such as ion pairs that grow to give spherical micelles, which ...
José L, López-Fontán +6 more
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Fluorescence probes for critical micelle concentration determination
Langmuir, 1985The utility of pyrene and pyrene-3-carboxaldehyde as fluorescence probes for determining the critical micelle concentration (cmc) of nonionic (Tergitol25-L-9, Tergitol15-5-40, Neodol91-8), anionic (sodium decyl sulfate), and cationic (cetyltrimethylammonium bromide) surfactanb was investigated. The probes were dissolved in trace amounts (
E D, Goddard +3 more
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The critical micelle concentrations of lysophosphatidic acid and sphingosylphosphorylcholine
Chemistry and Physics of Lipids, 2004The critical micelle concentrations (CMC) of lysophosphatidic acid (LPA) and sphingosylphosphorylcholine (SPC) were measured by isothermal titration calorimetry. The CMC of LPA decreases with salt concentration and acyl chain length. In water at 25 degrees C, the CMC values of 1-acyl-2-lyso-sn-glycero-3-phosphatidic acid are 1.850, 0.540, 0.082, and 0 ...
Zaiguo, Li +2 more
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Observations on the critical micelle concentration of asphaltenes
Fuel, 1993Abstract Micelle formation in petroleum fractions is discussed, including reinterpretation of recent surface tension data in terms of the Gibbs excess adsorption equation.
Simon I. Andersen, James G. Speight
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