Patent ID: 8101138
Filing Date: 2012-01-24
Classification: B01L,G01N,Y10T

Abstract:
1. A centrifugal micro fluidic system comprising: a rotatable platform which includes a first layer and a second layer disposed adjacent to a top or bottom side of the first layer; a micro fluidic structure which is disposed in the first layer of the platform and includes a chamber which is capable of accommodating a fluid, a channel through which the fluid can flow, and a valve which controls the flow of the fluid; magnetic beads which include functional groups on surfaces thereof so as to capture a target material from a sample, the magnetic beads carrying the target material while moving in the micro fluidic structure; a guide rail which is disposed in the second layer of the platform, the guide rail connecting a plurality of positions located outside of and adjacent to a path in the micro-fluidic structure through which the magnetic beads move, the plurality of positions being spaced away from a rotational center of the platform at different distances; a first magnet which is movably disposed in the guide rail and generates a magnetic force for moving the magnetic beads; a second magnet which is disposed outside the platform at a location closer to the second layer than the first layer; and a driving unit which rotates the platform.