The colloidal gold immune technology of the Antigen test utilizes the high electron density of gold particles and uses colloidal gold as a tracer marker for immunoassays. Colloidal gold labeling is essentially the coating process of adsorbing proteins and other macromolecules on the surface of colloidal gold particles. Colloidal gold immunological techniques include immuno-colloidal gold light microscopy staining, immuno-colloidal gold electron microscopy staining, spot immunogold percolation method, and colloidal gold immunochromatography. So what is the colloidal gold immune technology and the prospect of an Antigen test? Let's take a look at it next.
