Solid virus interaction potentials

The characteristic model distance des is taken to be zero at coincidence of the Stern surfaces, implying that the actual virus-to-solid separation distance would be approximately I nm on the basis of Smith s work (29). This is quite reasonable, and all solid-virus interaction potentials and free energy differences are matched with a single model distance. 

Table V. Double Layer Interaction Potentials Between Virus and Solid Phases According to the LSA Expression...

The test of the models is then twofold (1) Do the differences in DLVO potentials account for the observed differences in free energy for all solids (2) Are the values selected for characteristic distances realistic, considering what is understood about the atomic structure of solid-liquid interfaces, for example, 0.1 to 1 nm If these conditions are met we have evidence that the DLVO theory explains virus adsorption to various inorganic surfaces, provided that equally convincing evidence is not obtained when considering other types of interaction. 

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