Used in biomedical research to detect and quantify matrix metalloproteinase-9 (MMP-9) in biological samples such as serum, plasma, cell culture supernatants, and tissue extracts. MMP-9 is involved in extracellular matrix degradation and plays a key role in inflammation, tissue remodeling, cancer progression, and autoimmune diseases. This ELISA kit enables researchers to study MMP-9 expression levels in experimental models, assess disease progression, and evaluate the effects of therapeutic compounds on MMP-9 activity. Commonly applied in studies related to cancer metastasis, cardiovascular diseases, neurodegenerative disorders, and arthritis. Provides a sensitive and specific method for high-throughput analysis in preclinical research and biomarker development.