Product Description   MagVigen™-Streptavidin magnetic nanoparticles can universally bind to any biotinylated biomolecules (ex. antibody, protein, peptide) through high affinity interaction between streptavidin and biotin. The MagVigen™-Streptavidin-biotin-biomolecule complex can be easily separated from unbound biotin-biomolecule using a magnetic rack (Cat#A20006). This provides a quick and neat way to tag biomolecules with magnetic nanoparticles. The purified nanoparticle-biomolecule complex can be used in a variety of downstream bio-separation processes (ex. protein purification, immunoprecipitation, cell isolation or depletion, and molecular detection.)   Advantages of MagVigen™ – Streptavidin for Molecular enrichment Easy and quick to make nanoparticle-primary antibody conjugates Consistent, high quality results High binding capacity, 25 µg biotin-antibody per mg of nanoparticles High biocompatibility Low non-specific binding Product Contents   MagVigen™- Streptavidin (Cat# 21005P) are provided in phosphate buffered saline (PBS) containing 0.05% NaN3, 0.1% BSA. pH 7.4. Each vial contains 1 ml of solution with particle concentration of 2 mg/ml, which is enough for binding 50 µg of biotin-antibody.    Nanoparticle size: about 200-500 nm measured using Dynamic Light Scattering. Polydispersity index: about 0.2.  Capacity: 50μg biotin-antibody/ml of nanoparticles   Shelf Life: 6 months

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