Label-Free Immunoassay for Sensitive and Rapid Detection of the SARS-CoV‑2 Antigen Based on Functionalized Magnetic Nanobeads with Chemiluminescence and Immunoactivity

Direct detection of SARS-CoV-2 in biological specimens is often challenging due to the low abundance of viral components and lack of enough sensitivity. Herein, we developed a new type of chemiluminescent functionalized magnetic nanomaterial for sensitive detection of the SARS-CoV-2 antigen. First,...

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