Patent ID: 6672458
Filing Date: 2004-01-06
Classification: B01L,B03C,C12N,G01N

Abstract:
A system for manipulating magnetically responsive particles having nucleic acid molecules bound thereto and being in a solution contained in at least one tube, said system comprising:a tube receiver having at least one tube opening adapted to receive said tube therein; at least one first magnet; a magnet moving device, adapted to selectively move said first magnet between a first location with respect to said tube to attract said magnetically responsive particles toward an inner wall of said tube, and a second location with respect to said tube to allow said magnetically responsive particles to be suspended in said solution; and a second magnet, comprising an AC electromagnet, adapted to apply an AC magnetic field to said magnetically responsive particles when said first magnet is positioned at said second location, to remove a magnetization imposed on said magnetically responsive particles by said first magnet.