Analytical performances of different electrochemical immunosensors toward CEA detectiona.
| Immunosensor | Linear range (ng mL−1) | Detection limit (pg mL−1) | Ref. |
|---|---|---|---|
| Cu-Au NP/CNT-CSs | 0.025–25 | 0.5 | 41 |
| 3D-G/pDA/Con A | 0.1–750 | 90 | 42 |
| Co2(OH)2CO3-CeO2 | 0.002–75 | 0.51 | 43 |
| Au-g-C3N4·NHs | 0.02–80 | 6.8 | 44 |
| AuNP/TiO2-Gr/Thi/GCE | 0.1–10.0 | 10 | 45 |
| Au-PB-Fe3O4 | 0.01–80 | 4 | 46 |
| AuNP/NBeERGO/GCE | 0.001–40 | 0.45 | 7 |
| AuNP/MWCNT/CS/GCE | 0.3–2.5 | 10 | 47 |
| MoS2 nanosheets | 0.1–100 | 34 | 48 |
| Mo-Mn3O4/MWCNT/CS | 0.1–125 | 4.9 | 8 |
| I-BiOCl/CdS-10 | 0.01–40 | 2 | 49 |
| Au@Bi2MoO6 NTs | 0.001–1000 | 0.3 | This work |
a
CNTs: carbon nano-tube arrays; CSs: carbon spheres; 3D-G: 3D graphene; pDA: polydopamine; Con A: concanavalin A; NHs: nanohybrids; PB: Prussian blue; NB-ERGO: Nile blue A hybridized electrochemically reduced graphene oxide; MWCNTs: multiple-wall carbon nanotubes; CS: chitosan; CdS: cadmium sulfide.