immunoassay

im·mu·no·as·say

I0051200 (ĭm′yə-nō-ăs′ā, ĭ-myo͞o′-)n. A laboratory technique that identifies and quantifies a protein, such as a hormone or an enzyme, based on its ability to act as an antigen or antibody in a chemical reaction.

immunoassay

(ˌɪmjʊnəʊˈæseɪ) n (Physiology) immunol a technique of identifying a substance by its ability to bind to an antibody ˈimmunoˌassayist n

im•mu•no•as•say

(ˌɪm yə noʊ əˈseɪ, -ˈæs eɪ, ɪˌmyu-)

n. a laboratory method for detecting a substance by using an antibody reactive with it. [1955–60] im`mu•no•as•say′a•ble, adj.

Thesaurus

Noun

immunoassay - identification of a substance (especially a protein) by its action as an antigen; "PSA in the blood can be measured with an immunochemical assay"immunochemical assaybioassay, bio-assay - appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standardradioimmunoassay - immunoassay of a substance that has been radioactively labeled

Translations

immunoassay

Immunoassay

An assay that quantifies antigen or antibody by immunochemical means. The antigen can be a relatively simple substance such as a drug, or a complex one such as a protein or a virus. See Antibody, Antigen

The reactants are first mixed so that a varying quantity of one (A) is added to a constant amount of the other (B). The formation of an immune (antigen-antibody) complex is measured as a function of the varied reactant (A). The result is represented by a “standard curve” for reactant A. An unknown sample is tested by adding it to reactant B. The extent of the measured change is referred to the standard curve, and thereby is obtained the amount of reactant A which produces a comparable change. The amount is represented as the content of reactant A in the unknown sample. See Immunofluorescence, Immunology, Radioimmunoassay

immunoassay

[‚im·yə·nō′a‚sāy] (immunology) A laboratory detection method that uses antibodies to react with specific substances.

immunoassay

[im″u-no-as´a] any of several methods for the quantitative determination of chemical substances, such as hormones, drugs, and specific proteins, that utilize the highly specific binding between an antigen or hapten and homologous antibodies, including radioimmunoassay, enzyme immunoassay, and fluoroimmunoassay.

im·mu·no·as·say

(im'yū-nō-as'ā, im-yū'nō), Detection and assay of substances by serologic (immunologic) methods; in most applications the substance in question serves as antigen, both in antibody production and in measurement of antibody by the test substance.
See also: enzyme-linked immunosorbent assay, radioimmunoassay, radioimmunoelectrophoresis, immunologic pregnancy test. Synonym(s): immunochemical assay

immunoassay

(ĭm′yə-nō-ăs′ā, ĭ-myo͞o′-)n. A laboratory technique that identifies and quantifies a protein, such as a hormone or an enzyme, based on its ability to act as an antigen or antibody in a chemical reaction.

immunoassay

Lab medicine Any assay that measures an antigen-antibody response, the sensitivity of which varies according to the method; an immunologic test that quantifies a particular antigen using a cognate antibody. See ELISA, RIA.

im·mu·no·as·say

(im'yū-nō-as'ā) Detection and assay of substances by serologic (immunologic) methods.
See also: radioimmunoassay, radioimmunoelectrophoresis, immunologic pregnancy test
Synonym(s): immunochemical assay.

immunoassay

A method of testing for, and measuring the concentration of, various antibodies. Various methods, including RADIOIMMUNOASSAY, enzyme linked immunosorbent assay (ELISA) and immunoelectrophoresis may be used.

immunoassay

an assay of a substance that is based on its reaction with a specific ANTIBODY. See, for example, ELISA.

im·mu·no·as·say

(im'yū-nō-as'ā) Detection and assay of substances by serologic (immunologic) methods; in most applications substance in question serves as antigen, both in antibody production and in measurement of antibody by the test substance.

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Synonyms for immunoassay

noun identification of a substance (especially a protein) by its action as an antigen

Synonyms

Related Words