371307.fig.005a
(a)
371307.fig.005b
(b)
371307.fig.005c
(c)
371307.fig.005d
(d)
Figure 5: Swelling behavior of PHB films with different PAA nanogel content. (a) % mass increase in PBS buffer, (b) % mass increase in Milli-Q water, (c) % thickness increase in PBS buffer, and (d) % thickness increase in Milli-Q water. , , , , . Error bars indicate one standard deviation ( ).