【Detection principle】 This product detect the Cys C in whole blood and serum/plasma based on fluorescence immunochromatography quantitative testing. Basic principle: T and C lines are respectively marked on the nitrocellulose membrane, and the T line is coated with an antibody a that specifically recognizes the Cys C antigen. The binding pad is sprayed with another fluorescent nano-material-labeled antibody b that can specifically recognize Cys C. The Cys C in the sample first combines with the nano-material-labeled antibody b to form a complex, which is then chromatographed upwards. Antibody a binds to form a sandwich structure. When the excitation light is irradiated, the nanomaterial emits a fluorescent signal, and the strength of this signal is positively correlated with the concentration of Cys C in the sample.