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EWOD electrode with rectangular fingers for size-variable droplet actuation.
Theoretical calculation of droplets velocity affected by finger width and droplet diameter.
Schematics of parallel plate EWOD device configuration with the EWOD electrode proposed.
Different volumes of droplets transported from left to right under same driving signal in a parallel-plate EWOD device with rectangular interdigitated fingers: (a) 27 nl, (b) 57 nl, (c) 90 nl, and (d) 190 nl.
Driving velocity affected by (a) rectangular fingers width and (b) diameter of droplets under different drive voltages.
(a) EWOD electrode with triangle fingers for size-variable droplet actuation, (b) the mechanics demonstration of small droplet actuated by large triangle fingers.
Different volumes of droplets transported from left to right under same driving signal in a parallel-plate electrowetting device with triangle interdigitated fingers: (a) 15 nl, (b) 90 nl, and (c) 180 nl.21
Voltage-dependent velocity indicating faster transporting of electrode with triangle fingers than that with rectangular fingers for droplets in relatively large size.
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