SPA0100 - Protein A - Protein Conjugated Magnetic Beads - Magnetic Beads (50nm-4.5μm) - By Products Type
Contact: 858-689-8808

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These are Protein A Conjugated Super Mag beads with diameter of 100 nm. The magnetic beads are pre-blocked by a layer of BSA before a monolayer of Protein A covalently coupled to the surface. The monolayer of Protein A makes most of the binding sites sterically available for binding of IgG. Their specific and defined surface allow for efficient capture, separation, and downstream handling. The 100 nm Super Mag Protein A Beads have high capacity, efficient magnetic pull, and slow sedimentation rate during incubation.


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


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

Binding capacity:

  • >60 µg rabbit IgG/mg beads


Product Description: Protein A Conjugated Superparamagnetic Beads
Solvent: 10 mM PBS, 0.05% NaN3, 0.01% Tween 20 , 0.1% BSA, pH 7.4
Concentration: 1 mg/mL
Particle Size by Dynamic Light Scattering: 90-120 nm
Surface Ligands: Protein A
Magnetic Content: >80%
Number of Beads in 1 mL: 1.3×1011
Storage: 2-8 °C; Do not freeze. Keep vial upright.

Catalog# Product Unit Size Unit Price Quantity
SPA0101 Protein A Super Mag Magnetic Beads-1 mL 1 mL $99.00
SPA0102 Protein A Super Mag Magnetic Beads-5 mL 5 mL $249.00
Concentration 1 mg/mL
Particle Size 0.1
Product Description Protein A Super Mag Magnetic Beads, 0.1 µm
Surface Hydrophilic
Functionality Protein A