Figure 1.

(A) Schematic of a biomimetic nanopore. The model nanopore has a radius r, such that 0 < r < R_pore. (B) Top-down view of the pore, showing water molecules (blue) restrained to the CNT pore walls (orange) to create the polar regions at each mouth of the pore. The nanopore ends are capped with hydrogen atoms (white). (C) Snapshot of the simulation setup. The biomimetic nanopore is embedded in a palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine bilayer (lipid headgroup phosphates in green) and solvated with water (light blue), Cl^- (yellow), and Na⁺ (pink). (D) Pore-radius profile showing the maximum value of R_pore as a function of axial position z (approximately aligned with the simulation snapshot in (C). To see this figure in color, go online.