Fig. 1: The SARS-CoV-2 HC-FIA detection system.
From: Rapid lateral flow immunoassay for the fluorescence detection of SARS-CoV-2 RNA

a, The principle of HC-FIA. b, Representative results on a lateral flow strip. c, The fluorescence analysis device. d, A photograph of the portable suitcase laboratory, which has a length of 55.5 cm, a width of 37 cm and a height of 23 cm, with a weight of 8.5 kg. e, The testing process of the HC-FIA assay. Step 1: nucleic acid hybridization in an incubator at constant temperature. Step 2: determination of the intensity of the fluorescence signals on the test card using the device shown in c. f, Probe distribution in the genome of SARS-CoV-2.