http://www.cd-bioparticles.com/p/Silanol-Magnetic-Particles_20_193_221_480.htmlAbsolute Mag™ Silanol Magnetic Particles, Silica Matrix, 3-4 μm (# WHM-Q035) are prepared by embeding the magnetic nanoparticles in the silica matrix with strong magnetic response. The magnetic silica particles are particularly useful in applications of DNA/RNA purification. DNA/RNA Purification, Cell Isolation, Immunoassay, Clinical Diagnosis