Since its initial development in the 1980s, the technology of Lateral Flow Immunoassay has gained wide acceptance (Wong and Tse, 2008).
This technology is based on the principle of antigen-antibody reaction. It is characterized by labeling colored particles on the detector protein. Depending on the assay, either antigen or antibodies are immobilized on a nitrocellulose membrane in a cartridge device.

This technology is in use for a wide range of tests for clinical, veterinary, and industrial applications. The most well-known example is a home pregnancy test. The lateral flow immunoassay devices are compact and portable (see above figure). Most of them do not require external reagents for results. The addition of a liquid sample would initiate and complete the test. Results are quick and easy to interpret, usually without the help of an instrument.

Mirimedix has been developing test kits (Mirichek^TM series) for detecting viral pathogens (SARS-CoV-2, Japanese encephalitis virus, Zika virus, Dengue virus and HIV) and stress markers (Cortisol) using the above technology.