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The influence of ion binding and ion specific potentials on the double layer pressure between charged bilayers at low salt concentrations

Bostrom, M.; Lima, E. R. A.; Tavares, F. W.; Ninham, B. W.


Measurements of surface forces between double-chained cationic bilayers adsorbed onto molecularly smooth mica surfaces across different millimolar salt solutions have revealed a large degree of ion specificity [Pashley et al., J. Phys. Chem. 90, 1637 (1986)]. This has been interpreted in terms of highly specific anion binding to the adsorbed bilayers. We show here that inclusion in the double layer theory of nonspecific ion binding and ion specific nonelectrostatic potentials acting between...[Show more]

CollectionsANU Research Publications
Date published: 2008-04-07
Type: Journal article
Source: The Journal of Chemical Physics
DOI: 10.1063/1.2873307


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