Albumins are commonly used in the laboratory as a blocking agent to prevent non-specific binding in immunoassays. They can also be used as a stabilizer in enzyme assays and as a protein standard in protein quantification assays.
Western blotting: BSA is commonly used as a blocking agent in Western blotting to prevent non-specific binding of primary and secondary antibodies to the membrane.
ELISA (enzyme-linked immunosorbent assay): BSA can be used as a blocking agent in ELISA to prevent non-specific binding of antibodies to the plate.
Cell culture: Albumin is commonly used as a supplement in cell culture media to provide cells with essential nutrients and growth factors.
Stabilizer: Albumin can be used as a stabilizer in vaccines, pharmaceuticals, and other biological products to protect against degradation.