These are streptavidin conjugated Super Mag beads with diameter of 200 nm. The magnetic beads are pre-blocked by a layer of BSA before a monolayer of recombinant streptavidin covalently coupled to the surface. The monolayer of streptavidin makes most of the biotin binding sites sterically available for binding of biotinylated nucleic acids, antibodies, or other biotinylated ligands and targets. The 200 nm Super Mag Streptavidin Beads have high capacity, efficient magnetic pull, and slow sedimentation rate during incubation.

Features:

• High binding capacity
• Significant low non-specific binding to proteins and nucleic acid
• Fast magnetic separation due to high percentage of magnetic content

Applications:

Ideal for assay development. Low non-specific binding of proteins and nucleic acids.

Binding capacity:

One mg of 200 nm Super Mag Beads typically binds:

• 1,100–1,700 pmoles free biotin
•  ~400 pmol biotinylated peptides
• ~20 µg biotinylated IgG
•  ~20 µg ds-DNA
• ~400 pmol ss-oligonucleotides

Specification:

Product Description: Streptavidin Conjugated Superparamagnetic Beads

Solvent: DI Water, 0.05% NaN₃, 0.01% Tween 20 , 0.1% BSA
Concentration: 1 mg/mL
Particle Size by Dynamic Light Scattering: 180-220 nm
Surface Ligands: Streptavidin
Magnetic Content: >80%
Number of Beads in 1 mL: 3×10¹⁰
Storage: 2-8 °C; Do not freeze. Keep vial upright.