Table 4.

The earlier studies developed for the detection of DNA by the array of electrodes in contrast to the present study.

Electrode	Modification	Analite	Technique	Assay Time	LOD	Reference
8-channel array of electrodes	Carbon nanofiber	DNA (FV Leiden mutation)	DPV	135 min	1.6 µM	[13]
8-channel array of electrodes	Carbon nanofiber	DNA (FV Leiden mutation)	DPV	35 min	0.4 µM	[14]
8-channel array of electrodes	Carbon nanofiber	DNA (FV Leiden mutation)	EIS	50 min	133.0 nM	[15]
Gold film electrode array chip	-	DNA	SWV	NA	NA	[35]
Three-dimensional interdigitated electrode array	Silane	DNA	EIS	24 h	NA	[36]
ITO electrode array	Graphene-mesoporous silica hybrid nanosheets	DNA	DPV	70 min	10.0 fM	[37]
nanodisk-array electrodes	polystyrene-block-poly(methylmethacrylate)-derived thin films	DNA	CV	2 h	0.4 nM–4.2 nM	[38]
32 microelectrode Chips (gold)	-	DNA	CV	30 min		[39]
ITO electrode array on glass wafer	-	H1N1 influenza virus DNA	Capacitance	3.5 h	3.9 nM	[40]
16 thru-hole array on printed circuit board	-	Hepatitis A-B-C virus DNA	ECL	3.5 h	NA	[41]
Gold electrode microarray	-	DNA	EIS	22 h	1.0 pM	[42]
16-gold electrode sensor arrays	-	DNA	CV, Amperometry	3 h	NA	[43]
electrode array housed within the microfluidic cell	-	Karlodinium armiger DNA	SWV, Chronoamperometry	17 h	277.0 aM	[44]
120-channel gold microelectrode array chip	-	miRNA	CV	1 h	140.0 zmol	[45]
multi-electrode array (6-gold electrode)	-	HIV-1, HIV-2 DNA	SWV	7.5 h	0.1 nM	[46]
16 microwells- column electrode	-	DNA	Amperometry	2 h	30.0 nM	[47]
8-channel array of electrodes	Carbon nanofiber	DNA (FV Leiden mutation)	EIS	25 min	266.0 nM	Present work