Figure 2.

Distribution histograms of (a) the amplitude of the relative current blockade (ΔI/I₀) and (b) the dwell time (Δt) for the A₁₀/T₁₀ (blue), A₄₀/T₄₀: (orange), T₄₀ (yellow). The events were recorded at 500 mV, the number of events n = 793, 332 and 634 for A₁₀/T₁₀, A₄₀/T₄₀ and T₄₀, respectively. The results were obtained using pore 1 d_t = 3 nm, d_b = 200 nm. The density (d_i) is the frequency (f_i) of event relative to the sample size (n) and the bin width (w_i) $d_i=\raisebox{1ex}{$f_i$}\!\left/ \!\raisebox{-1ex}{$n{w}_i$}\right.$ where w_i = 0.01 and 200 for ΔI/I₀ and Δt, respectively.