Fig. 8.
Suspension bead-based array. Luminex xMAP system consists a panel of 100 distinct 5.6-μm polystyrene microspheres, each microsphere having a unique ratio of red to infrared fluorescent dyes b. The microspheres are identified individually in a rapidly flowing fluid stream that passes by two laser beams: one reveals the color code of the bead, and one quantifies the biomolecular reaction by measuring the fluorescence intensity of the reporter. (Courtesy of Luminex Corporation)