Table 1.

Investigated Percoll concentrations, corresponding cell viability, and results of visual inspection

Percoll concentration	Cell viability (%)	Visual observations
0%	91.9 ± 1.05	sunk to the bottom
10%	92.55 ± 0.35	floating close to the bottom
15%	94.5 ± 0.3	floating close to the bottom
20%	91.9 ± 0.85	no obvious cell cluster at any point
30%	72.4 ± 0.48	floating on top
40%	62.8 ± 0.58	floating on top

Viability is presented as the mean of four samples ± SEM.