BeaverBeads™ Mag NH2 magnetic beads have following characteristics: superparamagnetism, rapid magnetic responsiveness, rich amino functional groups, monodispersity and sub-micron scale size. When it is in special chemical reagent such as glutaraldehyde, polypeptide, protein, oligonucleotide and other bioligands can be covalent to the surface of microspheres. BeaverBeads™ NH2 magnetic beads are important carriers of the medical and molecular biology research tools BeaverBeads™ Magrose NH2 magnetic beads adopt advanced polymer technology to combine super paramagnetic materials and polymer materials to form a new functional magnetic microsphere. Compared with the traditional magnetic beads, Magrose NH2 magnetic beads have faster magnetic responsiveness, while keeping the microspheres good dispersibility, low non-specific adsorption and richer binding spots, can easily and efficiently reach high load combination with a variety of iological ligands (proteins, peptides, oligomeric nucleotide, drug molecules, etc.), can be used as good material for covering, adsorption, chemical modification etc. subsequent processing.