Learn about elisas (enzyme linked immunosorbent assays) and the various types of elisa including direct, indirect, sandwich and competitive elisas. Learn what an elisa is, how the plate-based assay works, the main formats available, elisa readouts, and how it enables analyte quantification. Elisa (which stands for enzyme-linked immunosorbent assay) is a technique to detect the presence of antigens in biological samples.

The enzyme-linked immunosorbent assay (elisa) detects antigen-antibody interactions by using enzyme-labelled conjugates and enzyme substrates that generate colour changes. The enzyme-linked immunosorbent assay (elisa) is an immunological assay commonly used to measure antibodies, antigens, proteins and glycoproteins in biological samples.

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