Figure 8.

Influence of the salt on EDL and the structure of the lipid monolayer with triangular head groups: (a) electrostatic potential, (b) probability, which refers to the projection of the center of mass of both charge moieties, W, and (c) most probable conformations of triangular head groups. The results are shown for three 1:1 salt concentrations, c = 0.001 mol dm^–3 (red line), c = 0.01 mol dm^–3 (black line), and c = 0.1 mol dm^–3 (green line). The surface area per lipid molecule is set to a = 0.6 nm², the fixed angle between two negative terminating charges is α = 30°, the length of the head groups is l = 0.68 nm, and β = 0.5. The charges are q₀ = −1, q₁ = −1, and q₂ = −1.