Figure 1.

Schematic representation of membrane cross-section by a plane containing the rotational symmetry axis. The horizontal (bilayer) part of the membrane, in which the directors and normals are oriented approximately along the Oz axis is shown in blue; the vertical part where the directors and normals weakly deflect from the direction of the Oρ axis is highlighted in yellow. The parts are conjugated along two circles of equal radii R ₀. The pore radius is designated as r. (A) hydrophilic pore; (B) hydrophobic defect. Cylindrical hydrophobic belt of the height 2L and radius r is highlighted in red.