Counterion condensation (source code)

= Counterion condensation
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= Manning condensation
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Localization of a finite fraction of oppositely charged <ions> near a charged object even as the confining volume grows without bound. In the salt-free infinite-cylinder mean-field model, the <Manning parameter> must exceed one for a nonzero limiting local density. The condensed charge does not include <ions> that escape to infinity; finite-cell charge neutrality and the local infinite-volume limit must not be interchanged.