Fig. 1. (a) The EIS characterization of the electrochemical sensing platform (a: the bare gold electrode; b: the electrode modified with P2 and sealed with MCH; c: TdT mediated extension; d: after hybridization of poly T and MB-poly A). (b) The CV characterization of the electrochemical sensing platform (a: the bare gold electrode; b: the electrode modified with P2 and sealed with MCH; c: TdT mediated extension; d: after hybridization of poly T and MB-poly A).
