Fig. 4
Evaluation the electrochemical performance of fabricated biosensor
(a) Square wave voltammetry (SWV) curves for with (1 nM) and without target RNA. (b) EIS performs the preparation and reaction stages of the biosensor. (c) SWV curves for target RNA concentrations ranging from 1 nM to 10 fM. Control refers to the replacement of target RNA with pure H2O. (d) The linear relationship between the change of current (Δ I%) and the -logarithm of the target RNA concentration. Error bars represent standard derivations obtained in three parallel experiments