Fig. 2.

CV of (a) ssDNA-NH₂/nano-Au/c-MWCNTs electrode and (b–i) hybridization with of L. interrogans ssG-DNA at 50 mV/s using 1 mM MB in 50 mM PBS, pH 7. The inset a shows hyperbolic curve from 0 to 320 ng/6 µl with linear peak current (I_p) up to 3.25 ng/6 µl of ssG-DNA of L. interrogans. Inset b shows the linear plot from 0 to 3.25 ng/6 µl ssG-DNA for the calculation of sensitivity and LOD