Extended Data Figure 8: Representative traces and corresponding current level histograms of CNT porin incorporation, gating and DNA translocation in lipid bilayers at pH 7.
From: Stochastic transport through carbon nanotubes in lipid bilayers and live cell membranes
a, Control conductance trace recorded in the absence of CNT porin. Although only the first 5 min are shown, the current level remained stable for up to 80 min (n = 3 × 106). b, c, Conductance traces and histograms showing single CNT porin incorporation events and subsequent current fluctuations between gating sub-levels (n > 5 × 104). d, Trace and conductance value histogram showing CNT porin incorporation event and subsequent two DNA translocation events (indicated by black arrows). Here n = 3.6 × 105. The peaks on the histogram correspond to 0.01 nS for pre-incorporation baseline, 0.22 nS for DNA blockade, and 0.67 nS for open pore conductance, which gives the DNA blockade of 0.45 nS and a blockade ratio of 67%. Dashed lines are added to all traces as a guide to the eye.
