منابع مشابه
Ion solvation in liquid mixtures: effects of solvent reorganization.
Using field-theoretic techniques, we study the solvation of salt ions in liquid mixtures, accounting for the permanent and induced dipole moments, as well as the molecular volume of the species. With no adjustable parameters, we predict solvation energies in both single-component liquids and binary liquid mixtures that are in excellent agreement with experimental data. Our study shows that the ...
متن کاملA thermodynamic study of selective solvation in solvent mixtures.
Changes in the (31)P NMR chemical shift of tri-n-butylphosphine oxide have been measured as function of solvent composition in a number of binary solvent mixtures. The data were analysed using a model that separates the contributions of specific H-bond interactions with the first solvation shell and the non-specific effects of the bulk solvent on the chemical shift. This allowed measurement of ...
متن کاملSolubility prediction of drugs in water-cosolvent mixtures using Abraham solvation parameters.
PURPOSE To provide predictive cosolvency models, the Abraham solvation parameters of solutes and the solvent coefficients were combined with the Jouyban-Acree and the log-linear models. These models require two and one solubility data points to predict the solubility of drugs in water-cosolvent mixtures. Ab initio prediction methods also were employed and the results were discussed. METHOD Th...
متن کاملEnzymology in aqueous-organic cosolvent binary mixtures.
The theory and results of solvent structure control on solute behavior for ordinary chemical reactions, generated in other laboratories (e.g. by Arnett and colleagues), were applied to enzyme reactions in water-organic cosolvent binary mixtures. Three kinds of reactions were studied: (a) catalysis of substrate reactions; (b) denaturation, judged by loss of overall activity; (c) renaturation, ai...
متن کاملStudy of preferential solvation in binary solvent mixtures by the spectra-streak picosecond technique
Using the picosecond spectra-streak method we monitored the dynamics of preferential solvation of a charge-transfer dipole in binary mixtures of solvents strongly different in dielectric constant. The observed slow (0.25-l ns) spectra1 red-shift of the charge-transfer (exciplex) fluorescence is considered to be mainly due to the formation and the dielectric enrichment of the salvation shell aro...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 2009
ISSN: 0006-3495
DOI: 10.1016/j.bpj.2008.12.3180