Qbeads-Carboxyl is magnetic bead with surface functional group
-COOH. The magnetic bead consists of a single-crystal Fe3O4 sphere
core and dextran coating layer.
Through chemical modification of dextran, the carboxyl groups
(-COOH) are joined to the magnetic beads through a short
hydrophilic linker. The hydrophilic surface ensures the magnetic
beads excellent dispersion ability and easy handling property in a
wide variety of buffers.
Through activation of Qbeads-Carboxyl with EDC, the ligands could
be conjugated to the magnetic beads through primary amine groups
such as antibody, protein, or peptide.