Table 2. Performance Comparison between Biosensors for the Detection of E. coliO157:H7.
| developed sensor | particles | targeted bacteria | LOD (CFU/mL) | ref |
|---|---|---|---|---|
| colorimetric sensor | dopamine Fe3O4 NPs | E. coliXL 1 | 104 | (37) |
| electrochemical immunosensor | GNPs chitosan | Salmonella and E. coli | 105 | (38) |
| electrochemical impedance | GNPs antibody | E. coli | 103 | (39) |
| mass spectroscopy | magnetic Fe3O4 | Gram-positive/negative bacteria E. coliO157:H7 | 104 | (40) |
| electrochemical immunofunctionalized | magnetic nanoparticle | E. coliO157:H7 | 103 | (41) |
| electrochemical biosensor | l-Cyst-Fe3O4 NPs | E. coli | 105 | (42) |
| mesoporous electrochemical biosensor | ZrO2-Ag-G-SiO2 and In2O3-G-SiO2 | E. coliO157:H7 | 1010 | this work |