Early-stage cervical cancer diagnosis based on an ultra-sensitive electrochemical DNA nanobiosensor for HPV-18 detection in real samples

Table 4 Comparison of HPV-18 DNA electrochemical biosensor with other previous reported electrochemical HPV-18 DNA biosensors

Ref.	Method	Sensor platform	Label	Detection limit	Detection range
[49]	CV	Gold surface/oligoethylene glycol-terminated bipodal thiol	HRP	170 pM	0.1 nM–50 nM
[50]	SWV	GCE/car-boxyphenyl layer	Hg(II)	1.2·10–5 nM	–
This study	DPV	SPE/rGO,MWCNT, Au nanoparticle, L-cysteine	AQMS	0.05 fM	0.01 fM–0.01 nM

SWV square wave voltammetry, HRP horseradish peroxide, AQMS anthraquninone-2-sulfonic acid monohydrate sodium salt

ISSN: 1477-3155