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| DLVO theory is an effective intermolecular pair potential that describes the aggregation of spherically symmetric charged colloids that have isotropic pair potentials and are interacting inside a fluid which also contains counter-ions. The pair potential is a special case of a Hard-Core Yukawa Potential. It is also a limiting case of the Generalized One-Component Macro-ion Potential (Belloni, 1986; Wu and Chen, 1988) in the limit where the colloid volume fraction approaches 0. This approximate potential works well when describing a solution that is concentrated enough to see some significant intermolecular repulsions, but not so concentrated that these repulsions aren't mediated by counter-ions and solvent. An example system would be Globular proteins at a pH where they have a surface charge dissolved in water with a buffer and salt. | | DLVO theory is an effective intermolecular pair potential that describes the aggregation of interacting charged colloids inside a fluid which also contains counterions. The pair potential is a special case of a Hard-Core Yukawa Potential. |