Silica Magnetic Beads

Silica magnetic beads feature a core-shell structure, consisting of a superparamagnetic iron oxide core enclosed within a silica shell. They offer advantages such as superparamagnetism, high dispersibility, chemical stability, and ease of surface modification. The surface is rich in silica hydroxyl groups, enabling the covalent coupling of molecules such as antibodies and nucleic acids. With rapid magnetic response, acid and alkali resistance, and low nonspecific adsorption, these products are widely used in applications such as nucleic acid extraction and purification, cell/exosome separation, protein purification, and molecular diagnostics. They are compatible with high-throughput automated experiments and provide efficient separation support for biomedical and in vitro diagnostic applications.