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The assay is a solid-phase type of enzyme immunoassay (EIA) to detect the presence of a ligand (commonly a protein) in a liquid sample using antibodies directed against the ligand to be measured. ELISA has been used as a diagnostic tool in medicine, plant pathology, and biotechnology, as well as a quality control check in various industries.
An enzyme immunoassay is any of several immunoassay methods that use an enzyme bound to an antigen or antibody. These may include: Enzyme-linked immunosorbent assay (ELISA) Enzyme multiplied immunoassay technique (EMIT) Fluorescent enzyme immunoassays (FEIAs) Chemiluminescent immunoassays (CLIAs) Radioimmunoassays (RIAs)
When the ELISA test is combined with Western Blot, the rate of false positives is extremely low, and diagnostic accuracy is very high (see below). HIV antibody tests are highly sensitive, meaning they react preferentially with HIV antibodies, but not all positive or inconclusive HIV ELISA tests mean the person is infected by HIV.
Eva Engvall applied the ELISA measurement tool to parasitology [e.g., malaria [5] and trichinosis [6]], microbiology, [7] and oncology. [ 8 ] [ 9 ] At Sanford Burnham Prebys Medical Discovery Institute , where Engvall was a professor from 1979 to 2005, she developed a form of ELISA , called “two-site” ELISA , that was tailored to using then ...
An antibody titer is a measurement of how much antibody an organism has produced that recognizes a particular epitope. It is conventionally expressed as the inverse of the greatest dilution level that still gives a positive result on some test. ELISA is a common means of determining antibody titers.
Antibody testing may refer to: Serological testing , tests that detect specific antibodies in the blood Immunoassay , tests that use antibodies to detect substances
A multiplex assay is a derivative of an ELISA using beads for binding the capture antibody. Multiplex assays are still more common in research than in clinical settings. [2] In a multiplex assay, microspheres of designated colors are coated with antibodies of defined binding specificities.
This is a recombinant monoclonal antibody to IgG. When using ELISA, the anti-antibody also recognizes rhesus macaque IgG1, cynomolgus monkey IgG1, and cynomolgus monkey IgG4. [10] Anti-IgG3 [NH3/15.8] This is a recombinant monoclonal antibody to IgG3. Anti-IgG3 [NH3/15.8] is most commonly used in human IgG blood transfusion serology testing. [11]
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