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Figure 3. Fluorescence micrographs of fluid flow in the device.
a. Vsf1/sf2 = 1.27 b. Vsf1/sf2 = 1.17 c. Vsf1/sf2 = 1.08 d–f. As indicated by the arrows, a plug can be seen migrating into the collection channels demonstrating that the device operated with continuous flow in the these channels.