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Printability evaluation depending on (a) piston speed and (b) nozzle size. Results of (c) 3D printing pattern (scale bar: 5 mm), (d) crosslinked construct (scale bar: 5 mm), and (e) cell viability examination of cell printed structure using 23G nozzle, speed 25, and 125 mm/min. (Green: live cells; Red: dead cells; scale bar: 200 µm.)
