Process of making resuspendable coated magnetic particles
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United States of America Patent
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Apr 30, 1996
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N/A
app pub date -
Apr 22, 1994
filing date -
Oct 4, 1985
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Expired
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Abstract
A method is provided for direct coating of transiently stable, colloidal particulate magnetic substrates with various synthetic or naturally-occurring polymers, particularly biologically-active peptides and proteins. The resulting coated resuspendable, colloidal magnetic particles are particularly adapted for use in bioanalytical procedures involving affinity separation, or the like. There is also provided a method for selectively binding chemically-treated colloidal magnetic particles to polyelectrolytes, e.g., to facilitate extraction of nucleic acids from cell lysates.
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