Micro-machined filter for magnetic particles
AssigneeInternational Business Machines Corporation
InventorsBabar Khan, Emily R. Kinser
Life of this patent
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Abstract
A method for filtering magnetic particles includes spinning a filter including a plurality of pores within a substrate. The method further includes applying, subsequent to spinning the filter, an external magnetic field to the filter. The method includes disposing a solution including a first particle and a second particle onto the filter. The first particle includes a magnetic particle of interest. The method further includes separating the first particle from the second particle by capturing the first particle within a pore of the plurality of pores within the substrate.
Claims9
A filter system for filtering magnetic particles comprising:
- a micro-machined filter comprising a plurality of pores within a substrate;
- a chamber comprising a surface for spinning the filter about an axis arranged substantially perpendicular to the surface, the chamber capable of adjusting a spin speed of the filter from 10 revolutions per minute (RPM) to 50,000 RPM at a spin acceleration of 10 to 5000 RPM per second;
- and
- a magnetic field generating device for applying a magnetic field to the spinning filter.
Dependencies are inferred from the claim text.