Abstract
A new method for dispatching microfluid is presented. A steel ball of 2mm diameter is placed on a 128 degrees YX LiNbO3 substrate. A PDMS frame is mounted on the piezoelectric substrate for defining the movement trajectory of the steel ball. Paper testing zone is fixed on a PDMS block for the target of the microfluidic dispatch. The steel ball is driven by surface acoustic wave, and carried microfluid at the outlet of the PDMS microchannel to the paper testing zone. Red ink solution is used to demonstrate the fluid dispatch.
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