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. 2023 Aug 14;14:1217567. doi: 10.3389/fmicb.2023.1217567

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Copyright © 2023 Song, Fang, Ma, Li, Huang, Zhang, Li and Chen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Antigen-antibody-based serological detection of SARS-COV-2. (A) Traditional ELISA method based on a double antibody sandwich assay. (B) Magnetic beads adsorption of antigens and antibodies. (C) Using a lateral flow assay or double antibody sandwich, the quick quantum dot and colloidal gold immunodiagnostic approach for SARS-CoV-2 antibody is based on high specificity for the recombinant protein and quantum dot/colloidal gold immunofluorescence probes.