http://www.cd-bioparticles.com/p/Hydroxyl-Magnetic-Particles_20_193_217_747.htmlAbsolute Mag Hydroxyl Magnetic Particles, Starch, 200 nm (# WHM-C143) are ferrofluids consisting of an aqueous dispersion of magnetic iron oxides. The beads are covered with hydrophilic polymers which protect them against aggregation by foreign ions. Terminal functional groups such as ion-exchange groups or reactive groups for covalent immobilization can be used for binding to biomolecules. Ferrofluids can further be used for MRI-diagnostics and magnetic drug targeting applications.Cell Isolation