Figure 6.
Current-voltage curves of a single conical nanopore with the tip of 3 nm in diameter. For the black curves, the base is in contact with KCl, while the tip side is in contact with 10−6 M KCl (see the upper inset). For the magenta curves, KCl is on the tip side with 10−6 M KCl on the base side (see the lower inset). (A), (B), and (C) show recordings with 20 mM, 0.1 M, and 1.0 M KCl, respectively. The wide opening of this pore was 800 nm.