Chemiluminescence Immunoassay: A Powerful Tool For Detection Of Biological Molecules
Chemiluminescence Immunoassay Chemiluminescence immunoassay (CLIA) is a type of assay that utilizes chemiluminescence to detect the presence and quantity of an analyte in a biological sample. CLIA combines the high sensitivity of chemiluminescence with the specificity of antibody-antigen interactions to precisely measure biomolecules. This allows for accurate quantification of substances like hormones, vitamins, proteins, drugs and biomarkers. Principle of Chemiluminescence Detection The basic principle behind Chemiluminescence Immunoassay detection involves a chemical reaction that produces light, or luminescence, without the generation of heat or radiation. This reaction involves an indicator molecule called a chemiluminescent substrate which reacts with an enzyme to produce an electronically excited product state. As this product relaxes back down to a ground state, light is emitted and can be measured quantitatively using a luminometer. In CLIA, the enzyme is commonly horseradi...