Bacterial DNA detection performance of THz metamaterial biosensor and other methods.
| Detection methods | Target species | Linear range | Detection limit | Reference |
|---|---|---|---|---|
| SPR | S. aureus | 1–5000 pg μL−1 | 0.5 pg μL−1 | 6 |
| SPR | M. tuberculosis | 104–108 CFU mL−1 | 5 pg μL−1 | 29 |
| SPR | M. avium | 104–108 CFU mL−1 | 2 pg μL−1 | 29 |
| Colorimetry | P. aeruginosa | 10–50 pg μL−1 | 9.899 pg μL−1 | 8 |
| Colorimetry | E. coli | — | 0.03 pg μL−1 | 30 |
| Electrochemistry | M. tuberculosis | 10–104 pg μL−1 | 10 pg μL−1 | 9 |
| Electrochemistry | M. tuberculosis | — | 40 pg μL−1 | 31 |
| Electrochemistry | V. cholerae | 100–500 ng μL−1 | 31.5 ng μL−1 | 32 |
| Electrochemistry | E. coli | 1–1000 pg μL−1 | 1 pg μL−1 | 33 |
| Electrochemistry | S. pneumoniae | 0–8 pg μL−1 | 0.218 pg μL−1 | 34 |
| THz metamaterials | S. aureus | 0.1–5 pg μL−1 | 0.08 pg μL−1 | This work |