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Assembly (annealing) of semi‐photocrosslinked gelatin methacryloyl (GelMA) microgels by ultraviolet (UV) light. Microgels semi‐photocrosslinked for (a) 120 s, (b) 90 s, or (c) 60 s were packed via centrifugation and annealed for 2 min using UV light with an intensity of ~10 mW/cm2, followed by assessing their stability after immersion in Dulbecco's phosphate‐buffered saline (DPBS) as a function of the time via optical imaging. The. Scale bars represent 200 μm
