Magnetic immunoassay was developed for the rapid and sensitive detection of proteins, viruses or bacteria in biological or food samples. The system incorporates the use of coated magnetic beads as labels in lateral flow (MIAstrip®) or flow through (MIAflo®) or chip (MIAchip®) formats.

In magnetic immunoassay, nano-sized magnetic beads are bound to a suitable antibody which specifically and selectively binds target molecules, micro-organisms or other antibodies in the test media.

 Solid phase coated with the primary antibody (1) Solid phase coated
with the primary antibody (Ab1)
  Specific immobilization of the analyte (2) Specific immobilization
of the analyte
 Specific labeling of the analyte (3) Specific labeling of the analyte by the Ab2/MB (Magnetic Bead) conjugate

Counting the number of MBs with a reader
(4) Measuring the magnetic response of MBs (magnetic beads)