Digital microfluidic manipulation device and manipulation method thereof

摘要

This invention provides a digital microfluidic manipulation device and a manipulation method thereof. This device comprises a PDMS membrane having a surface comprising a plurality of hydrophobic microstructures; a plurality of air chambers arranged in an array and placed under the PDMS membrane; and a plurality of air channels, each of which connects to a corresponding one of the plurality of air chambers. When a suction force is transmitted via one of the plurality of air channels to the corresponding air chamber, a portion of the PDMS membrane above the air chamber deforms toward the air chamber, so that the surface morphology and the contact angle of the liquid/solid interface of the surface comprising the plurality of hydrophobic microstructures are altered and thereby to drive droplets.

主权项

1. A digital microfluidic manipulation device, comprising:
an elastic membrane having a plurality of hydrophobic microstructures on at least one surface thereof; a plurality of air chambers arranged in an array and disposed under said elastic membrane; and a plurality of air channels, wherein each one of said plurality of air channels connects to a corresponding one of said plurality of air chambers, and wherein said surface of said elastic membrane above said plurality of air chambers deforms when a suction force is transmitted via one of said plurality of air channels to a corresponding one of said plurality of air chambers so as to alter morphology of said plurality of hydrophobic microstructures on said surface of said elastic membrane.