Specific Ion Effects: Why DLVO Theory Fails for Biology and Colloid Systems
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- 1 October 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 87 (16) , 168103
- https://doi.org/10.1103/physrevlett.87.168103
Abstract
The classical Derjaguin-Landau-Verwey-Overbeek theory that underpins colloid and surface science is shown to be flawed, especially at biological salt concentrations. This is in part because the dispersion forces acting on the ions are ignored. When these are included properly very different results are obtained. These results have substantial implications for biological and for ordinary colloid systems at moderate salt concentrations.Keywords
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