Fig. 3From: Dual functional construct containing kartogenin releasing microtissues and curcumin for cartilage regenerationViability and metabolic activity of the cell aggregates. a Live/dead assay using calcein AM and ethidium homodimer stains in the aggregate cultures (green: live, red: dead) b Viability in aggregates was determined by the MTT assay at days 1, 7, 14, and 21.Back to article page