Definition of immunodiffusion in English:



mass nounBiochemistry
  • A technique for detecting or measuring antibodies and antigens by their precipitation when diffused together through a gel or other medium.

    • ‘The author performed immunoprecipitation with immunodiffusion, using Petri dishes that contained 15 ml of 1.2% agarose in a barbital buffer.’
    • ‘Immunologic or antigenic fibrinogen can be quantitated by radial immunodiffusion or enzyme-linked immunosorbent assay.’
    • ‘Twenty-four hours after treatment, leaves were ground with a mortar and the expressed leaf extract was analyzed for proteinase inhibitor concentrations by radial immunodiffusion as described previously.’
    • ‘Little impetus has existed for the development of modern enzyme immunologic assay methods, and most laboratories still perform commercial radial immunodiffusion methods to quantify the antigenic form of antithrombin.’
    • ‘Radial immunodiffusion may be used as a means of demonstrating measurement of immunoglobulin levels.’