Analytical performance of different STX sensors.
| Methods | LOD | Linear range | Ref. |
|---|---|---|---|
| Electrochemical aptasensor | 0.92 nM | 1–400 nM | 10 |
| Electrochemical aptasensor | 0.38 nM | 0.9–30 nM | 27 |
| Electrochemical aptasensor | 1.2 pg mL−1 | — | 34 |
| Electrochemical aptasensor | 4.669 pg mL−1 | 10 pg mL−1 to 1 μg mL−1 | 30 |
| Fluorescent aptasensor | 10.0 nM | 0–80.3 nM | 32 |
| SERS aptasensor | 11.7 nM | 10–200 nM | 35 |
| Colorimetric aptasensor | 0.142 nM | 0.145–37.3 nM | 36 |
| Colorimetric aptasensor | 0.042 nM | 0.078–2.5 nM | 37 |
| Electrochemical aptasensor | 1 nM | 1–1000 nM | This work |