The Bio-Plex MAGPIX multiplex reader is a compact, robust system for magnetic bead–based immunoassays. It measures up to 50 analytes per sample in a simple and convenient ELISA-like workflow. Its technology is based on color-coded magnetic beads which can be allocated into 50 distinct sets. Each colored bead set is then coated with a reagent specific to a particular protein or other cell marker, allowing the capture and detection of specific analytes from a sample. A Light Emitting Diodes (LEDs) excites the internal dyes that identify each microsphere particle, and also any reporter dye captured during the assay. Many readings are made on each bead set, which further validates the results.
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