| 摘要 |
The present invention provides a dielectrophoretic device for manipulation of at least a first and a second type of particles (1, 2) present in a sample fluid. The device comprises at least one array (3) of electrodes (4), the array (3) comprising at least a plurality of electrodes (4) in a first region (5) and a plurality of electrodes (4) in a second region (6), driving means (32) for driving the electrodes (4) of the first and second region (5, 6) of the array (3) to generate a travelling wave dielectrophoretic force to be exerted on the at least first and second types of particles (1, 2), and a controller (30) for controlling the driving means (32), the controller (30) being adapted for first driving the electrodes (4) of the first and second region (5, 6) with a same driving signal and subsequently changing the driving signal to electrodes (4) of at least one of the first and second region (5, 6) so as to separate at least some particles (1) of the first type from the particles (2) of the second type. The present invention also provides a method for forming such a dielectrophoretic device, a method for manipulation of at least a first and a second type of particles (1, 2) present in a sample fluid and a controller (30) for controlled driving of electrodes (4) of such a dielectrophoretic device. |
