Table 1. Comparison of the Analytical Performance of METH Assays in the Literature^a.

sensing mode	material	biological molecule	linear range	LOD	refs
ECL	AuNPs/ITO/PET	anti-METH	2.81–90.0 ng/mL	0.241 ng/mL	(58)
COL	Au@Ag	DNA aptamer	0.5–200 nM	0.1 nM (14.9 ng/mL–1)	(59)
FRET	CoOOH and C–Ds	DNA aptamer	5.0–156 nM	1.0 nM	(60)
COL	Au@Ag	DNA aptamer	0.5–200 nM	0.5 mM	(61)
CHEM	PCFS + SA–B-HRP	antibody	1.5–300 ng/mL	0.5 ng/mL	(62)
OPT	SiO2@CQDs@ms-MIPs	-	5.0–250 μM	1.6 μM	(63)
SERS	AuNPs	aptamer	10 pM-10 nM	7.0 pM	(64)
FL	GQDs@MIP	-	5–50 μM	1.7 μg/L	(65)
FOPPR	AuNPs	anti-METH	1–1000 ng/mL	0.16 ng/mL	(66)
ELEC	PVDF-PEI ENs	anti-METH	0.5–5.0 ng/mL	0.007 ng/mL	this study (METH-DNC)

^aECL: Electrochemiluminescent; AuNPs/ITO/PET: gold nanoparticle--functioned indium tin oxide-coated poly(ethylene terephthalate); COL: colorimetric; Au@Ag: gold–silver nanoparticles; FRET: fluorescence resonance energy transfer; CoOOH: cobalt oxyhydroxide nanosheet; C–Ds: carbon dots; ELEC: electrochemistry; CHEM: chemiluminescense; PCFS: portable chemiluminescent fiber-based immunosensor; SA–B-HRP: competitive enzyme-linked immunoassay and biotin–streptavidin-mediated peroxidase nanocomposite; SiO₂@CQDs@ms-MIPs: green CQDs and mesoporous structured imprinting microspheres; OPT: optical; SERS: surface-enhanced Raman spectroscopy; FL: fluorescence; GQDs@MIP: graphene quantum dots embedded within molecularly imprinted polymer; and FOPPR: fiber optic particle plasmon resonance.