Patent ID: 6465225
Filing Date: 2002-10-15
Classification: B01L,B03C,Y10S

Abstract:
A method for manipulating particles in a fluidic microsystem in which the particles are moved in a suspension liquid in a predetermined reference direction,wherein the microsystem has a channel divided into sub-channels or reservoirs each of which have a closed end and point in the reference direction, the method comprising: moving the particles at a speed set by predetermined centrifugal forces and/or gravitational forces, in the suspension liquid which is stationary in relation to the microsystem, with the centrifugal forces and/or gravitational forces extending essentially parallel to the reference direction; and separating the particles into different sub-channels or reservoirs of the microsystem by creating field barriers across the channel for exposing the particles to at least one particle-specific deflection force; wherein the direction of the deflection force(s) differs from the reference direction and the deflection force direct particles into one or more sub-channels or reservoirs.