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Micro and Nano Systems Letters
Fig. 1 | Micro and Nano Systems Letters

Fig. 1

From: PCB-based digital microfluidic platform for droplet mixing on an open surface

Fig. 1

a Schematic diagram of droplet manipulation process on the EWOD chip; (b1) Droplet transportation by EWOD actuation; (b2) Merging of two droplets with different properties; (b3) When the droplet is positioned over the hole, a bubble is naturally trapped; (b4) Droplet mixing facilitated by microstreaming, generated through the oscillation of the bubble excited by a piezoactuator

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