Patents Examined by Janelle Grater
  • Biological magnetic colloids
    Patent number: 4920061
    Abstract: Colloidal-sized paramagnetic particles are formed with affinity ligands directly adsorbed to their surface. The colloidal-sized particles can form a colloidal disperse phase which is distributed through an aqueous dispersion medium to form a biological magnetic fluid. The fluid can be used to selectively separate cells from a cell mixture.
    Type: Grant
    Filed: July 8, 1986
    Date of Patent: April 24, 1990
    Assignee: The University of Texas System
    Inventors: Christopher H. Poynton, Christopher L. Reading