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Thermo Scientific™

MagnaBind™ Carboxyl Derivatized Beads

Catalog number:  21353

 Related applications:

Protein Purification & Isolation

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Thermo Scientific™ MagnaBind™ Beads provide a convenient method for magnetic separation of antibodies, antigens, lectins, enzymes, nucleic acids and cells using affinity binding. To remove the MagnaBind Beads from the suspension, an external magnetic field is used.

MagnaBind Carboxyl Derivatized Beads are supplied as an aqueous suspension of magnetic iron oxide beads coated with carboxyl groups for covalent coupling of molecules using EDC, a zero-length crosslinker that is amine- and carboxyl-reactive. Additionally, carboxyl derivatized beads have been used to purify plasmid DNA from cells.

Features of MagnaBind Carboxyl Derivatized 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 × 108 beads/mg
pH Stability: Aqueous solution, above pH 4.0
Concentration: ~20 mg/mL

• Cell sorting using either positive or negative selection
• Protein purification or immunoassays using either direct or indirect methods
For Research Use Only. Not for use in diagnostic procedures.


Surface Functionality: Carboxylic Acid
Target Molecule: Crosslinker
Product Line: MagnaBind™
Product Size: 5 mL

Contents & storage

Upon receipt store product at 4°C. Do not freeze product. Product is shipped at ambient temperature.


Manuals & protocols