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Cell spreading in the bioprinted constructs. A-C) Schematic diagram showing the structures of (A) 1.0% GelMA constructs, (B) 1.5% GelMA constructs, and (C) 2.0% GelMA constructs. D-I) Fluorescence images showing MDA-MB-231 cells stained for F-actin and nuclei at Day 9, in bioprinted constructs of (D,E) 1.0% GelMA, (F,G) 1.5% GelMA, and (H,I) 2.0% GelMA.
