Fig. 5. Cellular ¹⁰B and ¹⁰²Ru distribution in A375 cells treated with compounds RuCB1 and RuCB2 at a concentration equivalent to their IC₅₀ values found at 24 h challenge. Results are expressed in ng of ¹⁰B and ¹⁰²Ru per million of cells (top) or in total percentage (bottom). Results are expressed as mean ± SD of two independent experiments.