Fig. 2
From: Atomically-precise Au22(Lys-Cys-Lys)16 nanoclusters for radiation sensitization
(a, b) Cell viability after 24 h incubation with AuNCs at different concentrations: error bars ± 1 s.d. (n = 3); (c, d) Cellular uptake measured by ICP-MS after 24 h incubation with different concentrations of AuNCs; (e, f) Cellular uptake with 20 µM of AuNCs at different time points (****P < 0.0001, ***P < 0.001, **P < 0.01, *P < 0.05). (g) Confocal fluorescence microscopy images demonstrating cellular internalization after incubation with 10 µM NCs for different times