Table 1. Comparison with the reported state-of-art electrochemical platforms for miRNA detection.

Detection Method	Electrode Surface	MicroRNA	LOD	Reference
CV & EIS	Gold electrode	miR-21	3.96 pM	Zhou et al.39
DPV & EIS	Gold electrode modified with AuNP	miR-21	6 fM	Meng et al.40
CV & DPV	Gold electrode	miR-21	45 fM	Xia et al.41
EIS	Gold electrode and duplex specific nuclease as an amplification tool	let-7a, let-7b, let-7c	1 fM	Ren et al.42
DPV & EIS	Gold electrode modified with AuNP	miR-159a	3.5 fM	Wang et al.43
CV	Gold electrode	miR-21	3 fM	Liu et al.44
DPV & EIS	Gold electrode	let-7a, let-7b, let-7c	99.2 fM	Peng et al.45
CV, DPV & EIS	Gold electrode modified with AuNPs	miR-21	0.17 fM	Wang et al.46
DPV	Gold electrode modified with AuNP	miR-139a	1.7 fM	Zhou et al.47
DPV	Gold electrode modified with AuNP	miR-21	0.36 fM	Li et al.48
EIS & SWV	Gold Electrode	mir145	0.37 fM	This study

CV: Cyclic voltammetry; DPV: Differential Pulse Voltammetry; EIS: Electrochemical Impedance Spectroscopy; SWV: Square Wave Voltammetry.