Patent ID: 9442108
Filing Date: 2016-09-13
CPC Classification: B01L,G01N

Claim Text:
1. A centrifugal microfluidic device for conducting capture assays, the device comprising: a microfluidic platform having an axis of rotation about which it rotates, the axis being perpendicular to a plane of rotation; a sample reservoir and a capture chip defined on the platform; a capture chamber on the capture chip for receiving fluid from the sample reservoir via an inlet; and at least one capture surface for immobilizing a target particle of interest in the device, the at least one capture surface being at least one internal wall of the capture chamber, wherein: the at least one capture surface is positionally fixed in the device during operation of the device in an orientation that is not parallel to the plane of rotation of the device; the at least one capture surface and inlet are arranged so fluid entering into the capture chamber is forced to flow in a direction orthogonal to the plane of rotation; and centrifugal force arising from rotation of the device forces the target particles against the at least one capture surface.