Fig. 2. Ionic current signals of peptide length of 16 amino acids (a) and 18 amino acids (b); the red arrow pointed to the signal from the polyT sequence at the 5′ end of the sandwiched 3′-ssDNA-5′-N-peptide-C-3′-polyT-5′ conjugates. (c) Percentage of translocation events in which the polyT signal was detected for peptides of each length. The open-pore current is typically around 150 pA under the experimental conditions employed.