Fig. 5
(Reprinted with permission from [86]; copyright 2017 Elsevier)
Reproducibility and stability of graphene electrodes for biosensing. a Factors that influence the stability and reproducibility of graphene biosensors. b CV curves of reduced graphene oxide by two-step approach (i.e. reduction after drop-casting) after different acquisition time obtained in 0.1Â M KCl solution containing 1Â mM K3[Fe(CN)6]/K4[Fe(CN)6]. c The representative scheme of experimental procedure followed in the hybridization occured between miRNA-34a target and its complementary DNA probe at the surface of CA/GO/PGEs