Figure 3. Compressive modulus.

Scatterplot of the compressive stress versus the volumetric strain for non-treated (NT, GREEN), activated LPS-treated (RED) and cyto-D treated (BLUE) cells. To quantify the effect of activation, the compressive moduli K1 and K2 for the NT (cell n = 7) and LPS-treated cells (cell n = 5) are shown (insert). The compressive moduli were calculated by two linear fits to the data, as illustrated in Fig.2.