The EuGeni SARS-CoV-2 Antigen (Ag) Rapid Detection Test (RDT) is a test strip based on lateral flow technology which utilizes nanoparticles, doped with europium, as the fluorescence reporter system. The test strip is housed in a cassette which is read by the EuGeni AX-2X-S Reader, a portable instrument that reads EuGeni fluorescent lateral flow tests.
The test line contains an immobilized monoclonal mouse antibody to capture SARS-CoV-2 antigen and the control line contains an immobilized control anti-mouse antibody.
The test sample is added to the sample well of the test cassette and then reconstitutes the dried europium nanoparticle antibody conjugate from the conjugate pad. The sample flows along the test strip by capillary action.
If the sample contains SARS-CoV-2 antigen, it binds to the antibody-labelled europium nanoparticle. When the sample flows past the test line, the europium bound antigen is captured by the second anti-SARS-CoV-2 antibody immobilized on the test line. A fluorescent signal detected by the EuGeni AX-2X-S Reader at this test line indicates that the specimen is SARS-CoV-2 antigen Positive.
If the sample does not contain SARS-CoV-2 antigen, the europium-labelled anti-antigen antibody will not bind to the test line. This indicates that the specimen is SARS-CoV-2 antigen Negative.
The sample continues to flow along the strip and when it passes over the control line, antibody-labelled europium nanoparticles are captured by the immobilized anti-mouse antibody. The control line must be detected by the EuGeni AX-2X-S Reader for the test to be valid. If the control line is not detected, the test is considered invalid and must be repeated using another test cassette.
