Figure 4
Bottom view images of devices with multiple microchannels with various shapes enclosed by green colored hydrogels. The channels are organized into (a) parallel lines, (b) a square lattice, (c) a circle, and (d) concentric circles. (e) Time-lapse images from left to right showing the generation of 98 channels via a single aspiration. Since the opposing hole directly beneath the aspirating hole (red arrow) has the smallest hole diameter, hydrogel solution under the channel containing the aspirating hole is removed last. All scale bars are 2Â mm.
