http://www.cd-bioparticles.com/p/Carboxyl-Magnetic-Particles_20_193_211_316.htmlAbsolute Mag Carboxyl Magnetic Particles, Ferromagnetic, 4.0-4.9 μm (# WHM-S002) are prepared using chromium dioxide coated onto uniform polystyrene particles. These particles retain magnetism once exposed to a magnetic field. Coupled with carboxylic acid groups, these particles can be used for carbodiimide activation (e.g. EDC) for covalent coupling. In addition, these magnetic particles have been used for magnetic twisting cytometry, microfluidics, and cellular labeling due to their higher magnetic moment than paramagnetic particles.Mechanotransduction Studying