enzyme-linked immunosorbent assay (ELISA)
in diagnostics, a blood test to measure the concentration of antibodies to a specific antigen; an experimental technique that uses enzymes to detect the presence of specific proteins. | ||||
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Enzyme-linked immunosorbent assay definition was found in categories: Medicine(1) Encyclopedia(1)
Enzyme-linked immunosorbent assay Definition from Medicine Dictionaries & Glossaries
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enzyme-linked immunosorbent assay
a laboratory test used to detect the presence of antibodies in the serum. ELISA is used for first-line screening for HIV antibodies; a positive result indicates that antibodies have been detected. The test is sensitive but not specific, and a positive ELISA is typically confirmed using a Western Blot assay.
a laboratory test used to detect the presence of antibodies in the serum. ELISA is used for first-line screening for HIV antibodies; a positive result indicates that antibodies have been detected. The test is sensitive but not specific, and a positive ELISA is typically confirmed using a Western Blot assay.
Enzyme-linked immunosorbent assay Definition from Encyclopedia Dictionaries & Glossaries
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ELISA
Enzyme-Linked ImmunoSorbent Assay, or ELISA, is a biochemical technique used mainly in immunology to detect the presence of an antibody or an antigen in a sample. The ELISA has been used as a diagnostic tool in medicine and plant pathology, as well as a quality control check in various industries. In simple terms, in ELISA an unknown amount of antigen is affixed to a surface, and then a specific antibody is washed over the surface so that it can bind the antigen. This antibody is linked to an enzyme, and in the final step a substance is added that the enzyme can convert to some detectable signal. Thus in the case of fluorescence ELISA, when light is shone upon the sample, any antigen/antibody complexes will fluoresce so that the amount of antigen in the sample can be measured.
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Elisa
Elisa (born Elisa Toffoli on 19 December, 1977) is an Italian singer and solo artist, writing and performing within several genres, notably rock, blues, soul and ambient. Her voice is considered one of the best of the Italian music scene, particularly recognisable by her frequent use of her high pitched head voice. She is also the only major Italian singer to write and record songs in English.
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