Figure 5From: Particle-based simulation of charge transport in discrete-charge nano-scale systems: the electrostatic problem(Color online) Toy model of ion channel. (a) Potential map inside the cylindrical channel at z = 0 due to dipole rings embedded in the membrane. (b) Potential map at the same coordinate when 3 adjacent dipoles are switched off in each ring. The potential is the sum of both source charge and induced charge Coulombic contributions.Back to article page