Cellular uptake and cytotoxic evaluation of fullerenol in different cell lines

We reported the studies of aggregation, cellular uptake and cytotoxicity of C60(OH)x, one of important water-soluble fullerene derivatives. The results showed C60(OH)x was smaller in size but harder to go into cells in the media with serum. Moreover, C60(OH)x showed severe toxicity to Chinese hamster lung and Chinese hamster ovary cells, but almost no effect on L929 cells, which implied that the cytotoxicity of C60(OH)x was cell type specific. Flow cytometry was used to examine the precise effect of C60(OH)x on the cell cycle and found cells was blocked at G1 phase. These results are expected to be helpful to understand the toxicity of fullerene derivatives.