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A) Schematic of high-throughput microfluidic device for water-in-oil droplet formation and screenshots (scale bars = 100 μm) of droplets B) being formed and C) flowing through the device. After crosslinking with UV light, microgels were washed from the oil, dehydrated for storage, and then rehydrated to form relatively uniform spherical microgels as D) visualized with light microscopy and E) quantified as a histogram with an average microgel diameter of 59 ± 7 μm (mean ± SD).
