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. 2012 Nov 13;6:22. doi: 10.1186/1754-1611-6-22

Figure 4.

Figure 4

ROS production in A549 cells following exposure of different concentrations of MWCNTs under static and dynamic cell growth conditions. ROS was measured from the cell lysate of A549 cultures following exposure to MWCNTs at different concentrations (0, 5, 10, and 20 μg/ml) under both cell growth conditions. Each data point from ROS measurement (RFU) was normalized by total protein concentration (μg/ml) at each time point. Time 0 h refers to the starting point of cyclic equibiaxial deformation. #Significantly different from the other cell growth condition at the same MWCNT concentration and exposure duration (p<0.05). *Significantly different from the control for static cell growth condition (static condition at 0 μg/ml of MWCNT) under the same exposure duration (p<0.05). +Significantly different from the control for dynamic cell growth condition (dynamic condition at 0 μg/ml of MWCNT) under the same exposure duration (p<0.05).