HETEROGENEOUSLY CHARGED MEMBRANES

Philip Pincus
UC Santa Barbara

Interfaces and surfaces are often observed to have patchy regions which are composed of differing charge densities, e.g. cationic and anionic domains. The electrostatics of these heterogeneous interfaces leads to strong attractive forces between such patchy surfaces. The patch scale is determined by a balance against line tension. This is the 2 dimensional analog of the Rayleigh instability of charged drops.

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