Also found in: Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.


any of various analytical techniques that involve antigen and antibody solutions diffusing towards each other in a gel until the antibody binds specifically to the antigen to form a precipitate


(ˌɪm yə noʊ dɪˈfyu ʒən, ɪˌmyu-)

any of various analytical techniques that involve antigen and antibody solutions diffusing toward each other in a gel until antibody binds specifically to antigen to form a precipitate.
References in periodicals archive ?
Anti-SSA and anti-SSB antibodies were detected by double immunodiffusion and Western blot analysis.
This combi-plate quantify serum proteins by radical immunodiffusion.
In the study, the VaxArray Seasonal HA potency assay exhibited good overall accuracy, precision, and stability indication properties when compared to single radial immunodiffusion assay (SRID/SRD) for both monobulk intermediates and multivalent split-virus flu vaccines from the 2015-2016 flu season.
The results are generally similar, except for the antibody-dependent and the immunodiffusion assays, which may overestimate the ceruloplasmin levels.
A computerized search without language restrictions was conducted in Pubmed/MEDLINE, Web of Science, and Cochrane Library, for articles published up to June 2016 combining the following terms ((DISSEMINATED HISTOPLASMOSIS) AND (ANTIBODY OR MOLECULAR OR "POLYMERASE CHAIN REACTION"[MH] OR ANTIGEN OR IMMUNODIFFUSION OR "COMPLEMENT FIXATION TESTS/METHODS"[MAJR] OR "LATEX FIXATION TESTS"[MH]) AND (DIAGNOSIS)).
Bacterial isolation is based on standard techniques using BHI broth and immunological methods using serum, such as the rapid slide agglutination test (Namioka and Murata, 1961), IHA (Carter, 1955), agar gel immunodiffusion test (Heddleston et al, 1972) and counter immune electrophoresis (Carter and Chengappa, 1981), Molecular approaches like Polymerase chain reaction are also employed for diagnosis (Biswas et al, 2004).
Measurement of alpha-1 antitrypsin in serum by immunodiffusion and by enzymatic assay.
Invitation to tender: Supplies Of Immunology, Divided Into Five Groups, Namely: Group 1: Supplies For Allergies Group 2: Supplies For Autoimmune Tests Group 3: Supplies Of Antisera Group 4: Supplies For Elisa Tests Group 5: Supplies For Radial Immunodiffusion And Specific Proteins
All females goats were serologically negative for caprine arthriti-sencephalitis virus by agar gel immunodiffusion (AGID) (Biovetech[R], Recife, Brazil) using the p28 as the antigen, and negative for Mycoplasma agalactiae in the PCR (LAUERMAN, 1998).
Serology: Diagnosis may be done by immunoassay, immunodiffusion, or by complement fixation.
C1INH was measured by radial immunodiffusion (The Binding Site, Birmingham, UK), C1INH was assayed by functional enzyme-linked immunosorbent assay (Quidel, San Diego, CA).
Prevalence of Peste Des Petits Ruminants Virus (PPRV) in Mardan, Hangu and Kohat District of Pakistan; Comparative Analysis of PPRV Suspected serum samples using Competitive ELISA (cELISA) and Agar Gel Immunodiffusion (AGID).