Colloidal gold is a labeling technology that can be used as a tracer marker for immunolabeling of antigens and antibodies. In recent years, it has been widely used in clinical, food, microbiological testing and other fields. Alfa Chemistry combines colloidal gold technology with electron microscopy, immunochromatography and other technologies to quantitatively or semi-quantitatively measure biologically active substances such as proteins, hormones, and cytokines. Our detection technology is simple, fast, accurate and free of contamination.
Gold salts form a suspension of gold particles of uniform size under the action of a reducing agent, and form a stable colloid through electrostatic action, which is colloidal gold. Colloidal gold labeling refers to the process in which gold particles are combined with macromolecular substances such as proteins by electrostatic adsorption. The main feature of this technology is the high electron density. Colloidal gold labels have the following advantages: first, they can be flexibly prepared in various sizes; second, they can retain the biochemical activity of the labeled biomolecules when coupled to biomolecules. Third, colloidal gold can be easily visualized in transmission electron microscopy as dense structures within biological entities.
The colloidal gold technical solutions of Alfa Chemistry include but are not limited to the following:
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