enzyme immunoassay


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Related to enzyme immunoassay: ELISA, EIA, radioimmunoassay

en·zyme im·mu·no·as·say

any of several immunoassay methods that use an enzyme covalently linked to an antigen or antibody as a label; the most common types are enzyme-linked immunosorbent assay (ELISA) and enzyme-multiplied immunoassay technique (EMIT).
See also: enzyme-linked immunosorbent assay, enzyme-multiplied immunoassay technique.

en·zyme im·mu·no·as·say

(EIA) (en'zīm im'yū-nō-as'ā)
Procedure measuring antibodies to detect the analyte of interest and an enzyme linked to the antigen-antibody complex. The enzyme reacts with a substrate to produce a product that is measured to quantitate the amount of antigen-antibody formed.
See also: enzyme-linked immunosorbent assay, enzyme-multiplied immunoassay technique

enzyme immunoassay

Abbreviation: EIA
A rapid enzyme immunochemical method for determining the presence of an antigen, antibody, or hapten in the blood. In EIA an antigen or antibody is bound to an enzyme, e.g., horseradish peroxidase or alkaline phosphatase. The resulting molecule can bind specific immunological targets in body fluid samples and highlight their presence enzymatically. EIA, formerly known as enzyme-linked immunosorbent assay (ELISA), is used as one of the primary diagnostic tests for many infectious diseases, including treponema pallidum (the spirochete that causes syphilis) and HIV.
See also: immunoassay
References in periodicals archive ?
Serological cross-reactivities between antibodies to simian virus 40, BK virus, and JC virus assessed by virus-like-particle-based enzyme immunoassays.
The purpose of the investigation reported here was a comparative evaluation of these two enzyme immunoassay test kits for the detection of C trachomatis endocervical infections.
Enzyme immunoassay (EIA) and enzyme-linked immunosorbent assay (ELISA) have become household names for medical laboratories, manufacturers of in vitro diagnostic products, regulatory bodies, and external quality assessment and proficiency-testing organizations.
RSV antigens were detected by rapid enzyme immunoassay in the nasal aspirates of 6.
BioCheck is a provider of high quality enzyme immunoassay research services and products, and a leading provider of immunoassay kits for cardiac and tumor biomarkers, infectious diseases, thyroid function, steroids, and fertility hormones.
Test-system (kit) for the detection of antibodies to the antigen of the classical swine fever virus by the enzyme immunoassay in serum and blood plasma of pigs
On January 6, enzyme immunoassay (EIA) testing of the index patient for HIV was negative.
The Freedom EVOlyzer is a new enzyme immunoassay (EIA) analyzer that offers fully automated microplate processing.
They were submitted for viral diagnosis by direct immunofluorescence microscopy, cell culture, and enzyme immunoassay.
Homogeneous enzyme immunoassays have been developed (8-11) for various haptens, including thyroxine (10, 12), but no homogeneous enzyme immunoassay for [T.
BioCheck is a leading provider of high quality enzyme immunoassay research services and products including immunoassay kits for cardiac and tumor biomarkers, infectious diseases, thyroid function, steroids, and fertility hormones.
Any available serum and myocardial tissue specimens from patients were tested at the California Department of Health Services Viral and Rickettsial Disease Laboratory by using real-time PCR nucleic acid amplification (Amersham Eclipse, Piscataway, NJ, USA) and immunoglobulin M (IgM) enzyme immunoassay for detecting enterovirus and adenovirus (10,11).