Definition: Any technique involving diffusion of antigen or antibody through a semisolid medium, usually agar or agarose gel, resulting in a precipitin reaction. Precipitin lines or bands form where the concentration of an antigen and antibody are serologically equivalent (source: NDI Foundation).
Antigen-Antibody Specific Applications
Tumor, Disease & Diagnostic Applications
Immunodiffusion - First developed in the early 1960's by Morris Goodman, among the simplest of all molecular approaches to higher-level taxa phylogenetics are immunodiffusion comparisons of albumins (and some transferrins).
Immunodiffusion Articles from PubMed