Figures & data
Figure 1 Cell numbers of L929 cells over 220 day period without and with the presence of PLA.
Figure 2 Growth rates of L929 cells over a 220 day period in the absence and the presence of PLA.
Figure 3 pH of the culture medium containing cells grown in the absence and the presence of PLA, whereas the pHs were significantly lower in the medium without cells.
Figure 4 Shear strength and inherent viscosity of the PLA samples over 180 days of incubation in the presence of cells (A) and in their absence (B).
Figure 5 Typical thermogram of PLA.
Figure 6 The DSC thermograms of PLA indicated that the samples were initially essentially amorphous (97%) and the level of cristallinity remained marginal after 220 days of incubation in the presence of cells (A) and in their absence (B).
