Cluster-shaped magnetic silicate particles (sicastar®-M-CT)

• Consist of aggregates in the size range of 3 - 30 µm with a major diameter of 6 µm,
• Are produced by hydrolysis of ortho-silicates in the presence of magnetite,
• Show a homogeneous distribution of magnetite in the silicate matrix due to the special manufacturing method,
• Have a hydrophilic surface with terminal Si-OH groups,
• Can be easily separated even in highly viscous media with conventional permanent magnets,
• Are very stable in organic media and at high temperatures,
• Are available with the surface functionalities OH (plain), NH2, COOH and epoxy for the covalent binding of proteins, antibodies or other molecules,
• Are offered with the nickel(II) complex of nitrilotriacetic acid (Ni-NTA) for the binding of histidine-labeled proteins,
• Are available with a hydrophobic octadecyl (C18) surface.