MagReSyn Carboxyl

For covalent ligand immobilization via primary amine residues

MagReSyn® Carboxyl is a magnetic polymeric microparticles support designed for covalent immobilization of primary amine-containing ligands through carbodiimide-succinimidyl ester activation and subsequent amide bond formation. Various strategies for the activation of carboxylate particles have been documented, but the most commonly used method for coupling proteins and other primary amine-containing ligands is through activation by EDC (1-ethyl-3-(3-dimethylaminopropyl) carbodiimide) in an aqueous reaction. This reaction can be either single-step or a two-step reaction requiring the addition of N-hydroxysuccinimide (NHS) or the more stable sulfo-NHS yielding NHS ester or sulfo NHS ester intermediates.

Please note that coupling of proteins through NHS-EDC activation can be tricky, requires fresh reagents, and is prone to interference from a range of routine buffers used in life-sciences. For simpler coupling of your ligand we would recommend using MagReSyn® Amine with glutaraldehyde or epoxide activation. 

  • Support: Proprietary polymer microparticles containing iron oxide (magnetite)
  • Binding capacity: > 20 mg.ml-1 (BSA)
  • Bead size: ~5-10 µm
  • Formulation: 20 mg.ml-1 suspension in 20% ethanol

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*PhenoSwitch Bioscience only distributes MagResyn products in Canada. If you are not located in Canada, please visit the MagResyn website for more information. 

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Klaus Klarskov, Ph.D., Professor at Université de Sherbrooke, Canada

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Stephen Naylor, Ph.D., CEO at ReNeuroGen LCC, Milwaukee, USA
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