Figure 2.

Cell proliferation following exposure of different concentrations of MWCNTs under static and dynamic cell growth conditions. Total protein concentration was measured in each cell lysate of A549 cell culture following exposure of MWCNTs at different concentrations (0, 5, 10, and 20 μg/ml) under both cell growth conditions. 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).