ELISA Kits

ELISA (Enzyme-Linked Immunosorbent Assay) kits are laboratory tools used for the quantitative and qualitative detection of specific antigens or antibodies in biological samples such as serum, plasma, urine, or cell culture supernatants. These kits utilize enzyme-linked antibodies and a substrate that produces a detectable signal, often colorimetric, allowing researchers to measure the presence and concentration of target molecules. 

Content of ELISA Kits: Standard ELISA kits typically include:

• Pre-coated 96-well microplate: Coated with specific capture antibodies or antigens.
• Standards: Known concentrations of the target antigen or antibody for constructing a standard curve.
• Detection antibodies: Specific to the target and conjugated to an enzyme (e.g., HRP or alkaline phosphatase).
• Substrate solution: Commonly TMB (3,3',5,5'-Tetramethylbenzidine) for color development.
• Stop solution: To halt the enzyme-substrate reaction, stabilizing the color change for measurement.
• Assay buffers: Including sample and assay diluents, wash buffers, and blocking solutions.

Application of ELISA Kits: ELISA kits are versatile tools used across various research and clinical applications, including:

• Clinical diagnostics: Detecting biomarkers for diseases such as infections (e.g., viral or bacterial antigens), autoimmune diseases (e.g., rheumatoid factor), and hormones (e.g., TSH, insulin).
• Immunology research: Measuring cytokines, growth factors, and other immune mediators to study immune responses and inflammatory processes.
• Infectious disease monitoring: Diagnosing and tracking infections through the detection of specific antigens or antibodies against pathogens.
• Cancer research: Quantifying tumor markers and proteins involved in cancer progression to aid in diagnostics and treatment monitoring.
• Pharmacology and drug development: Evaluating the effect of drugs on target proteins or antibodies and validating therapeutic targets.

ELISA kits provide reliable, sensitive, and specific measurements, making them essential tools for clinical laboratories, research institutions, and biotechnology companies.