Background | Phycoerythrin is separated and purified from red algae. It can emit strong fluorescence, has good light absorption performance and high quantum yield, and has a wide range of excitation and emission in the visible spectrum. With conventional labeling methods, it can be easily combined with biotin, avidin and various monoclonal antibodies to make fluorescent probes, which can be used in fluorescence microscopy, fluorescence immunoassay, two-color or multi-color fluorescence analysis, cancer cell surface antigen detection, flow cytometry and other antibody fluorescence labeling, as well as in vivo imaging applications and other diagnostic and bioengineering technologies. |