A colloidal gold platform is a diagnostic technology that uses gold nanoparticles to detect the presence of biomolecules or microorganisms in a patient sample. The technology relies on the principles of immunochromatography, where the sample is added to a device containing gold labels coated with antibodies or antigens. If the target biomolecule or microorganism is present, it will bind to the gold label, resulting in a visible change, such as a color change. Colloidal gold platforms are commonly used in rapid diagnostic tests for infectious diseases, such as HIV, malaria, and COVID-19. The technology is affordable, easy to use, and produces results quickly, making it a valuable diagnostic tool in resource-limited settings.
A colloidal gold platform works by using gold nanoparticles that are coated with antibodies or antigens to detect the presence of specific biomolecules or microorganisms in a patient sample. If the target molecule is present, it binds to the gold label, resulting in a visible change such as a color change.
The advantages of using a colloidal gold platform include affordability, simplicity, and ease of use. The technology provides quick results, making it ideal for use in resource-limited settings. Colloidal gold platforms can also be used for a variety of diagnostic applications.