Modification of the indirect agglutination assay, where the particles are coated with antibody.
Note: These antibody-laden particles become probes for detecting specific antigens in the sample material. The presence of the relevant antigen will result in the agglutination of particles.
Source:
PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1142 (https://doi.org/10.1515/pac-2016-1120)