Contribution of the electric double layer to the curvature elasticity of charged amphiphilic monolayers
The electrostatic contribution to the bending moduli of an amphiphilic monolayer is calculated on the basis of the Poisson-Boltzmann equation. The electrical free energy for a spherical and cylindrical surface is expanded in inverse powers of the radius of curvature a. The coefficient (1/a)2 in the electrical free energy gives the bending elastic moduli.