Figure 1.

Bar graph illustrating the different cytotoxicity of Fe@Au nanoparticles in CRC and OECM1 cells, as assessed with the WST-1 assay.

Notes: The CRC cell lines Caco-2, HT-29, and SW480 are directly compared with the OECM1 oral cancer cell line. From this graph, it becomes clear that CRC cells are less sensitive to Fe@Au treatment (Caco-2 cells, P = 0.0253; HT-29, P = 0.0376; SW480, P = 0.0601; t-test), compared to OECM1 cells.

Abbreviations: CRC, colorectal cancer; Fe, iron; Au, gold; WST-1, water-soluble tetrazolium salt.