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Oxygen diffusivity is high near the bilayer center, regardless of cholesterol content. These are representative curves, calculated using Eq. 3. Dxyz(z) reflects displacements in all three dimensions; Dxy(z) reflects displacements parallel to the plane of the bilayer; and Dz(z) reflects displacements perpendicular to the bilayer plane. (Black lines, POPC; blue lines, 50 mol % cholesterol; dashed gray lines, 100% cholesterol.) To see this figure in color, go online.
