The effect of salt stoichiometry on protein-salt interactions determined by ternary diffusion in aqueous solutions

Article Abstract:

The four diffusion coefficients are reported for the lysozyme-Mg[Cl.sub.2]-water ternary system and its comparison with previous results for the lysozyme-NaCl-water ternary system is used to examine the effect of salt stoichiometry on the transport properties of lysozyme-salt aqueous mixtures. The results have shown that the common-ion effect and the protein-preferential hydration are both important for describing the lysozyme-Mg[Cl.sub.2] thermodynamic interaction.

Italy, Science & research, Research, Stoichiometry, Chemical properties, Sodium chloride

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Multicomponent diffusion of lysozyme in aqueous calcium chloride. The role of common-ion effects and protein-salt preferential interactions

Article Abstract:

Ternary diffusion coefficients for the lysozyme-Ca[Cl.sub.2]-water ternary system are described for examining the effect of calcium salts on the thermodynamic and transport properties of aqueous solutions of proteins. The neglecting of the common-ion contribution of the preferential-interaction coefficient has led to inaccurate descriptions of protein-salt aqueous systems, even at high salt concentrations.

All Other Basic Inorganic Chemical Manufacturing, Calcium & Compounds, Usage, Thermal properties, Thermodynamics, Calcium compounds, Structure

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