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Thermo Scientific™ MagnaBind™ Streptavidin Beads

Enable benchtop magnetic affinity purification with these ligand-coated (streptavidin, Protein A and G, GAM IgG, GAR IgG) magnetic particles and magnet separators.

Brand:  Thermo Scientific™ 21344

Product Code. 11851215

  • 556.00€ / 5mL

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Description

Description

Thermo Scientific MagnaBind Streptavidin Beads are convenient for affinity purification or separation methods involving of biotin-labeled molecules. To remove the MagnaBind Beads from the suspension, an external magnetic field is used.

Features of MagnaBind Streptavidin Beads:

  • Composition: Silanized iron oxide
  • Magnetization: 25-35EMU/g
  • Type of Magnetization: Superparamagnetic (no magnetic memory)
  • Surface Area: >100m2/g
  • Bead Size: 1-4μm diameter
  • Settling Rate: 4% in 30 minutes
  • Effective Density: 2.5g/mL
  • Number of Beads: 1 x 108 beads/mg
  • pH Stability: Aqueous solution, above pH 4.0
  • Concentration: 5 mg/mL

Streptavidin is a 60kDa protein from Streptomycetes avidinii. The protein is a tetramer having four biotin-binding sites. Unlike avidin, streptvidin has a low isoelectric point (pI=5) and no carbohydrate groups, resulting in low nonspecific binding. The high-affinity interaction between streptavidin and biotin cannot be dissociated efficiently except with very harsh conditions, such as boiling in sample loading buffer for SDS-PAGE or 8M guanidine HCl, pH 1.5. Consequently, it is often possible to elute binding partners in an interaction complex without also eluting the biotinylated component.

Applications:

  • Cell sorting using either positive or negative selection
  • Protein purification or immunoassays using either direct or indirect methods
TRUSTED_SUSTAINABILITY
Specifications

Specifications

Slurry: 5 mg/mL
MagnaBind Streptavidin Beads
Affinity Purification
Streptavidin
5 mL
1 to 4 μm
Upon receipt store product at 4°C. Do not freeze product. Product is shipped at ambient temperature.
Brown
Streptavidin Magnetic Beads
MagnaBind™
5 mL
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Lot Number Certificate Type Date Catalog Number
Lot NumberAA4595481 Certificate TypeCertificate of Analysis Date31/01/2025 Catalog Number21344
Lot NumberZJ4495361 Certificate TypeCertificate of Analysis Date16/10/2024 Catalog Number21344
Lot NumberZH4419801 Certificate TypeCertificate of Analysis Date17/08/2024 Catalog Number21344
Lot NumberZH4423451 Certificate TypeCertificate of Analysis Date17/08/2024 Catalog Number21344
Lot NumberZH4399021 Certificate TypeCertificate of Analysis Date07/08/2024 Catalog Number21344
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Thermo Scientific™ MagnaBind™ Streptavidin Beads > 5 mL

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