Immunochromatography assay technology appeared in the 1980s, its essence is the embodiment of immune reaction in chromatography, a new detection technology combining chromatography and immunochemical reactions. Microspheres are one of the core materials for immunochromatography assay (ICA). So, it is critical to select suitable microspheres according to your project requirement and the physicochemical properties of microspheres. As the expert of microspheres development and innovation, VDO Biotech has summarized the tips and guidelines in microspheres-based ICA.