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. 2012 Mar 21;13(3):3703–3717. doi: 10.3390/ijms13033703

Figure 7.

Figure 7

Expression of stress and toxicity marker mRNAs in PEG-TiO2 NP-exposed HeLa cells. Cells were exposed for 6 h (solid black bars) or 24 h (open bars). Results are shown as the mean ± SD, n ≥ 3 for each marker.