DEP FORCE CONTROL AND ELECTROWETTING CONTROL IN DIFFERENT SECTIONS OF THE SAME MICROFLUIDIC APPARATUS

摘要

A microfluidic apparatus can comprise a dielectrophoresis (DEP) configured section for holding a first liquid medium and selectively inducing net DEP forces in the first liquid medium. The microfluidic apparatus can also comprise an electrowetting (EW) configured section for holding a second liquid medium on an electrowetting surface and selectively changing an effective wetting property of the electrowetting surface. The DEP configured section can be utilized to select and move a micro-object in the first liquid medium. The EW configured section can be utilized to pull a droplet of the first liquid medium into the second liquid medium.

主权项

1. An apparatus comprising:
an enclosure configured to hold a first liquid medium disposed on a first surface in a first section of said enclosure and a second liquid medium disposed on an electrowetting surface in a second section of said enclosure; and a boundary between said first section and said second section of said enclosure; wherein: said first section of said enclosure comprises a DEP configuration configured to induce selectively net dielectrophoresis (DEP) forces in said first liquid medium sufficiently to capture and move, relative to said first surface, micro-objects in said first liquid medium in said first section of said enclosure while connected to a biasing device, and said second section of said enclosure comprises an electrowetting (EW) configuration configured to change selectively an effective wetting characteristic of regions of said electrowetting surface sufficiently to move a liquid droplet within said second medium in said second section of said enclosure while connected to a biasing device.