Sera-Mag SpeedBeads Streptavidin-Blocked Magnetic Particles combine high affinity for biotinylated target molecules with very low non specific binding. Sera-Mag SpeedBeads Streptavidin-Blocked Magnetic Particles combine fast reaction kinetics with very low non specific binding for increased throughput and precision. Applications include automated immunoassays, immunoprecipitation, and protein purification. Compounds that are difficult to attach to particle surfaces by conventional means may be amenable to biotinylation. Sera-Mag SpeedBeads and Sera-Mag Streptavidin-Coated Magnetic Particles provide a high biotin-binding capacity along with a strong affinity for targeted, biotin labeled molecules.

• Non-surfactant, non-protein blocking reagent provides very low non-specific binding and high binding capacity for biotinylated target molecules
• Fast reaction kinetics increases throughput and precision, and also enables faster movement through viscous solutions
• Unique cauliflower-like surface provides increased area for binding reactions compared to smooth surface particles
• Uniform, nominal 1 μm diameter provides excellent lot-to-lot reproducibility