RayBiotech's carboxyl terminated Super Mag magnetic beads of various diameters (50 nm, 100 nm, 150 nm and 200 nm) are now available in an easy-to-use kit format to enable researchers to conjugate proteins/ligands of their own choice to these magnetic beads. Attribute to the large surface area, excellent colloidal stability and unique surface coating of the Carboxyl Super Mag (100 nm), the kit exhibits high binding capacity and low non-specific binding. 8CSK-100 contains sufficient reagents & components for performing at least 5 conjugation reactions. Briefly, the magnetic beads are activated using carbodiimide and N-hydroxysuccinimide followed by conjugation to amino groups that are present on the target protein/ligand. The recommended protocol has been used to successfully conjugate bovine serum albumin, streptavidin or immunoglobulin to these magnetic beads.