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Effect of UV light intensity. Cell viability of OD21 encapsulated GelMA exposed to UV light (A) at 1560 mW/cm2, and DL (B) at 1560 mW/cm2 for 5 and 10 seconds after 24 hours. The viability assay (C) showed that cells were viable when photopolymerized with DL for 5 s, and decreased when exposed to UV for 5 s. p<0.0001(****). Scale bar 400 μm.
