AI Article Synopsis
- Mutual diffusion coefficients were measured for different compositions of sodium cholate, sodium deoxycholate, and water at 25 °C, with constant and variable concentrations of components in separate experiments.
- The findings suggest that the behavior of these diffusion coefficients can be understood by analyzing similar binary systems of sodium cholate-water and sodium deoxycholate-water.
- The study introduces a method to relate diffusion in multi-component systems to those in simpler subsystems, which could be applied to predict diffusion trends for other surfactant mixtures relevant in industrial and biological contexts.
Article Abstract
Mutual diffusion coefficients have been measured for several average compositions of the system sodium cholate-sodium deoxycholate-water at 25 °C. The experiments have been grouped in different sets having constant concentration of one component and variable concentration of the other one. Following this approach, it has been found that the trends of the main- and cross-term diffusion coefficients can be interpreted on the basis of the diffusion and equilibrium results of similar experiments performed on the two binary systems sodium cholate-water and sodium deoxycholate-water. Implications of the presented results in the transport of lipids operated by bile salt aggregates are mentioned. The method proposed in this work, able to connect the diffusivities of an n-component system to those of the related n-1 subsystems, can be extended to obtain qualitative prediction on the diffusion coefficient trends for mixtures of other surfactants, of both industrial and biological interest.
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| http://dx.doi.org/10.1021/jp309945f | DOI Listing |
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