3.5 Swelling Analysis
The swelling data of the A-SA-Gel and SA/Gel hydrogel samples as a function of time in PBS and RPMI 1640 culture medium at 37 °C are presented in Figure 4B-4C. From the results, it was observed that the swelling ratios of the SA/Gel sample were higher than that of A-SA-Gel sample. It can also be seen from the graph that the similar results were observed for the study conducted in RPMI 1640 culture medium. The swelling ratio of the SA/Gel sample was about twice as high as that of the A-SA-Gel sample. There was a noticeable phenomenon that the swelling ratios of SA/Gel and A-SA-Gel samples increased fastest in the first 15 min, and stabilized after 30 min.