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Morphological changes in RKO and SW480 cells assessed by microscopy (100×) upon 48 h incubation with an IC50 value of Ru2. (a) Normal morphology of RKO, (b) RKO cells incubated with Ru2, (c) normal morphology of SW480, and (d) SW480 cells incubated with Ru2. Similar effects were found with remaining complexes (data not shown).
