The Rebeads ® Mag COOH series are monodisperse, structured, spherical beads with stable particle size, strong magnetism and fast magnetic responsiveness. They are capable of covalently coupling biological ligands such as peptides, proteins and oligonucleotides to the surface of magnetic microspheres under the action of special chemical reagents. Rebeads ® Mag COOH are polymer based solid microbeads mainly used in the field of biological analysis, such as in vitro diagnostics, microbial detection,immunoprecipitation, immunocoprecipitation, etc.