Enzyme-Linked Immunosorbent Assay (ELISA)

  • Methods Mol Biol. 2022:2508:115-134. doi: 10.1007/978-1-0716-2376-3_10.
Mahdis Sadat Tabatabaei  1 ,  Marya Ahmed  2  3
Affiliations
  • 1. Department of Chemistry, University of Prince Edward Island, Charlottetown, PE, Canada.
  • 2. Department of Chemistry, University of Prince Edward Island, Charlottetown, PE, Canada. [email protected].
  • 3. Faculty of Sustainable Design Engineering, University of Prince Edward Island, Charlottetown, PE, Canada. [email protected].
PMID: 35737237 DOI: 10.1007/978-1-0716-2376-3_10
Abstract

Enzyme-linked immunosorbent assay (ELISA) is one of the most specific and straightforward assays for detecting biomolecules in research and clinics. With advances in analytical methods, ELISA assay has been constantly optimized to improve its sensitivity, and different types of ELISA are now available to detect various biomarkers. This chapter provides an overall summary of the basic principle of ELISA, discusses different components of ELISA assay, and clearly outline protocols for different types of ELISA assays, including direct, indirect, sandwich, competitive, and nanoparticle-based ELISA.

Keywords
Assay protocols; Biotin–streptavidin interactions; Competitive ELISA; Direct ELISA; Indirect ELISA; Nanoparticle-based ELISA; Sandwich ELISA.