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(a) Microfluidic device assembly in which two PDMS channels facing each other are sealed together. The bottom channels are 50 µm high and the top channel is 10 µm high. Drawing is not to scale, and only three of eight total chambers are shown. (b) Diagram of the chambers along with channel dimensions. (c) Image of Arcella incubated with fluorescein diacetate in capture chambers. Scale bar is 100 µm.
