620765.fig.006a
(a)
620765.fig.006b
(b)
620765.fig.006c
(c)
620765.fig.006d
(d)
Figure 6: SEM images of cross-sections of dried PSC/genipin gels at genipin concentrations of (a) 0 mM, (b) 0.5 mM, (c) 1 mM, and (d) 2 mM.