NanoLINK Streptavidin Magnetic Beads (1.0 µm), 1 mL, have the highest biotin binding capacity on the market. Higher binding translates into reduced bead mass required to immobilize a biotinylated sample and lower background noise from non-specific binding, resulting in better signals and lower net costs. NanoLINK Streptavidin Magnetic Beads are 1.0 µm in diameter and bind at least 14 nmol of free biotin per milligram of beads.