ELISA kits (Enzyme-Linked Immunosorbent Assay kits) are laboratory tools used for detecting and quantifying specific proteins, antibodies, antigens, or hormones in a sample. These kits are commonly used in diagnostics, biomedical research, and quality control in various industries.
The ELISA technique works by immobilizing the target molecule (antigen or antibody) on a solid surface, then introducing an enzyme-linked detection antibody that binds to the target. A substrate is added, which the enzyme converts into a detectable signal, usually a color change, proportional to the concentration of the target molecule in the sample. ELISA kits are highly sensitive and specific, making them a powerful tool for disease diagnostics, and monitoring immune responses.