Fig. 3: Cell viability in Griddient platform over time.

HCT-116 cells were stained with CellTracker™ Green CMFDA and seeded at 30 million cells/mL in the collagen hydrogel. Dead cells were stained with IP and image at 0, 7, 14, and 30 days. a Representative fluorescence images of each time point. b Cell viability quantification. Results are plotted as (mean ± SEM; n = 3 from two independent experiments).