Figure 3
From: Electrochemical DNA biosensor based on the BDD nanograss array electrode
The different DPV responses obtained on the AuNPs/CA/fBDD electrode (Figure3(A)) and the AuNPs/CA/nBDD electrode (Figure3(B)). (a) and (a’), the DPV responses of DNR solution (1.0 × 10−5 M) containing PBS (0.1 M, pH 7.4) without ssDNA probe; (b) and (b’), the DPV responses of DNR solution (1.0 × 10−5 M) containing PBS (0.1 M, pH 7.4) in the presence of ssDNA probe; (c) and (c’), the DPV responses of the hybridized electrodes with accumulated DNR in PBS (0.1 M, pH 7.4). target DNA: 1.58 × 10−7 M. DPV parameters: Amplitude: 0.05 V; pulse period: 0.2 s; pulse width: 0.05 s.