Figure 4

Mitochondrial membrane polarisation after GNP and irradiation. Mitochondrial membrane polarisation was measured by TMRE flow cytometry and made relative to untreated control after cells were treated with 1.9 nm GNPs and/or 2 Gy irradiation. Means are presented ± standard error of the mean. n = 5. Significance was measured by paired t tests against controls. A line between two bars with asterix denotes significant differences between two conditions. *p = ≤0.05, **p = ≤0.01, ***p = ≤0.001.