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Particulate material for purification of bio-macromolecules

  • US 6,783,962 B1
  • Filed: 11/20/2001
  • Issued: 08/31/2004
  • Est. Priority Date: 03/26/1999
  • Status: Expired due to Term
First Claim
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1. A particulate material having a density of at least 2.5 g/ml, comprised of particles having an average diameter of 5-75 μ

  • m, wherein said particles of the particulate material are essentially constructed of a polymeric base matrix and a non-porous core material, said core material having a density of at least 3.0 g/ml, and said polymeric base matrix comprising either chargeable pendant groups or affinity ligands for a bio-molecule.

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