DiagPoly™ Amine Polystyrene Particles, 0.025 μm (# DFO-L026) are polystyrene particles functionalized with amine groups (NH2) on the surface for the covalent attachment of proteins, peptides and nucleic acids. The density of liquid suspension is 1.05-1.06 g/mL. Sonicate/Vortex the microspheres before each use.