Enzyme-Linked Immunosorbent Assay, a plate-based technique that uses enzymes linked to antibodies to detect and quantify substances in samples. It produces a color change proportional to the amount of target molecule present.
Acronym developed in the 1970s from 'Enzyme-Linked Immunosorbent Assay,' describing each component: enzymes provide signal amplification, immunosorbent refers to antibody binding, and assay means measurement. The technique was independently developed by several labs seeking sensitive, quantitative immunoassays.
ELISA is pronounced like the name 'Eliza,' making it one of the most human-sounding scientific techniques! It's essentially a molecular sandwich - the target molecule gets trapped between two antibodies, and an enzyme creates a colorful signal that screams 'found it!'
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