Figure 2From: Electrochemical DNA biosensor based on the BDD nanograss array electrode Nyquist plots of 10Â mM [Fe(CN) 6 ] 3-/4- in 0.1Â M KCl from 10 5 Hz to 0.01Â Hz at an ac amplitude of 10Â mV under open-circuit potential conditions, obtained at (a) fBDD, (b) AuNPs/CA/fBDD, (c) nBDD, (d) AuNPs/CA/nBDD. Back to article page