MAGNETIC BEAD, LIGAND-BINDING BEAD, METHOD FOR DETECTING OR SEPARATING TARGET SUBSTANCE, AND METHOD FOR PRODUCING THE MAGNETIC BEAD

摘要

A magnetic bead, formed by binding a chain polymer at least to the surface, in which the chain polymer is a chain polymer which has a hydrophilic repeating unit, and has a group comprising a reactive functional group at the end of the side, to which the magnetic bead does not bind, through an imino group or an N-substituted imino group, and a density of the chain polymer occupying the surface of the magnetic bead is 0.1 polymers/nm² or more.