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Magnetophoretic particle delivery method and apparatus for the treatment of cells

  • US 5,516,670 A
  • Filed: 10/07/1994
  • Issued: 05/14/1996
  • Est. Priority Date: 09/30/1991
  • Status: Expired due to Fees
First Claim
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1. A method for delivering particles into a cellular specimen comprising the steps offorming a monodispersion of tiny acicular magnetizable particles;

  • placing the dispersion in contact with the specimen, and subjecting the specimen and particles to a nonuniform magnetic field having an axis of convergence which intersects the specimen and whose field lines converge to a focal point proximal to the specimen whereby said particles align themselves with the field lines and travel into the specimen toward said focal point.

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