The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2016
Filed:
Feb. 18, 2014
Drexel University, Philadelphia, PA (US);
Benjamin B. Yellen, Cary, NC (US);
Gennady Friedman, Richboro, PA (US);
Drexel University, Philadelphia, PA (US);
Abstract
One aspect of the invention provides a device for sorting non-magnetic particles. The device includes: (a) a fluid holding chamber comprising an inner and outer surface; (b) a fluid in contact with the inner surface of the fluid holding chamber, said fluid containing a dispersion of magnetic particles and at least two sets of non-magnetic particles; and (c) at least two sources of magnetic fields positioned in close proximity to, or inside of, the fluid holding chamber. The at least two sources of magnetic fields produce a changeable pattern of magnetic field minima and maxima regions thereby causing said non-magnetic particles in the fluid to be transported towards the magnetic field minima regions by magnetic force. At least one of said sources of magnetic fields comprises an array of magnetizable features on a micrometer or nanometer length scale.