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Comparison of LoDs and detection times for four different SARS-CoV-2 assay methods.
| Lateral flowassay strip | Enzyme-linked immunosorbent assay | SERS-based magnetic assay in microtube | SERS-based magnetic assay in microdroplet channel | ||
|---|---|---|---|---|---|
| LoD | TCID50/mL | 494 | 115 | 52.2 | 0.32 |
| PFU/mL | 341 | 79.3 | 36.0 | 0.22 | |
| Detection time (min) | ≤ 30 | ≤ 180 | ≤ 30 | ≤ 10 | |
