File:Diagnostics-10-00453-g003.webp
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Summary
| Description |
English: Overview of enzyme-linked immunosorbent assay (ELISA)-based diagnostic test. ELISA can be presented in different formats based on differences in antigen immobilization and antibody labeling. In direct ELISA, SARS-CoV-2 antigen(s) bound to a plastic solid phase is detected by the addition of a conjugated antibody. In sandwich ELISA, the capture antibody is attached to the plastic solid phase. Antigen(s) in the sample will bind to the capture antibody and then be detected by a second enzyme-labeled antibody. In competitive ELISA, sample SARS-CoV-2 antigen is preincubated with the primary antibody and then added to a well coated with a secondary antibody along with an enzyme-conjugated antigen that competes with the sample antigen for binding with the primary antibody. The more SARS-CoV-2 antigen in the sample, the less conjugated antigen will be bound and the lower the signal will be. |
| Date | |
| Source |
Ghaffari, A.; Meurant, R.; Ardakani, A. COVID-19 Serological Tests: How Well Do They Actually Perform? Diagnostics 2020, 10, 453. https://doi.org/10.3390/diagnostics10070453 |
| Author | Abdi Ghaffari, Robyn Meurant, and Ali Ardakani |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 09:33, 3 February 2021 | | 2,512 × 3,536 (1.53 MB) | Guest2625 | Uploaded a work by Abdi Ghaffari, Robyn Meurant, and Ali Ardakani from Ghaffari, A.; Meurant, R.; Ardakani, A. COVID-19 Serological Tests: How Well Do They Actually Perform? Diagnostics 2020, 10, 453. https://doi.org/10.3390/diagnostics10070453 with UploadWizard |
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