Table 1.

Reviews of the detection of Aβ 1-40 with different methods.

Techniques	LOD (pg mL−1)	Linear range (pg mL−1)	Reference
SAN-LISA	0.88	1-2000	This work
Electrochemical immunoassay	19	20-12500	[42]
SWV∗ at GCE∗	7 × 105##	Nonlinear	[43]
Microfluidic droplet	2165#	NP	[44]
EIS∗	2468#	43.3-4.33 × 105#	[45]
SPR∗	86.6###	86.6-865.9#	[46]
SWV∗	8.6 × 105#	1.772 × 106-8.66 × 106#	[47]

SWV: Square Wave Voltammetry; GCE: Glassy Carbon Electrode; SPR: Surface Plasmon Resonance; ECL: Electrochemiluminescence (ECL) immunosensor; EIS: Electrochemical Impedance Spectroscopy. ^#Value was expressed in nM and converted to pg mL⁻¹. ^##Value was expressed in μg mL⁻¹ and converted to pg mL⁻¹. ^###Value was expressed in pM and converted to pg mL⁻¹.