An Immunoassays involves immobilizing a target molecule on polystyrene microplates and then combining it with an enzyme-labelled antibody. The activity of the enzyme is measured by incubating it with substrate to generate a quantifiable coloured product, which is then measured using Immunoassays reader
The Immunoassays was the first screening test widely used for HIV because of its high sensitivity.
Following are some applications of Immunoassays (Alhajj and Farhana, 2022):