Table 2.

Comparison of developed CNF/AuNp-based DNA sensor with some reported biosensors for the detection of L. monocytogenes in food samples

Detection method	Transducer	Analyte used as marker	Target gene	Indicator used	Limit of detection (LOD)	References
Electrochemical Biosensor	CILE	DNA	hly gene	MB	3.17 × 10−14 mol/L	Niu et al. 2017
ElectrochemicalB osensor	Au/3DGRCILE	DNA	hly gene	MB	3.3 × 10–15 mol L−1	Yan et al. 2017
Electrochemical Biosensor	CNF/AuNP	DNA	plcA gene	MB	82 fg/6 µL	Present study

SPGE screen-printed gold electrode, Au gold, 3DGR 3-dimensional graphene, CILE carbon ionic liquid electrode, MB methylene blue, ND not determined