A Simple Ratiometric Electrochemical Aptasensor Based on Exonuclease III-Assisted Target Recycling for Ultrasensitive Detection of Prostate Specific Antigen

Table 1

Comparison of the analytical performances of PSA detection methods.

Analytical method	Linear range	LOD	References
PEC	0.01–50 ng·mL^−1	1.5 pg·mL^−1	[35]
PEC	0.001–10 ng·mL^−1	0.22 pg·mL^−1	[36]
ECL	0.005–1 ng·mL^−1	0.3 pg·mL^−1	[37]
ECL	0.005–50 ng·mL^−1	3.0 pg·mL^−1	[38]
ECL	0.01–10 pg·mL^−1	3.4 fg·mL^−1	[39]
Electrochemical	0.001–10 ng·mL^−1	0.67 pg·mL^−1	[40]
Electrochemical	0.001–10 ng·mL^−1	0.34 pg·mL^−1	[41]
Electrochemical	0.0001–10 ng·mL^−1	34.7 fg·mL^−1	This work

PEC: photoelectrochemical; ECL: electrochemiluminescence.