Figure 7.

Effect of microgravity on A549 cell viability, performing CCK8 metabolic activity measurement. “2 k”, “4 k”, and “10 k” denotes cells cultivated on a 24-well plate with initial seeding density 2000, 4000, and 10,000 cells per well, respectively; “chip” corresponds to cells grown in OOC setup using continuous flow. Viability ratio is calculated by comparing CCK8 metabolic activity measurements under microgravity versus normal gravity. Significant difference is marked with asterisk (* p = 0.0112).