563651.fig.007a
(a)
563651.fig.007b
(b)
563651.fig.007c
(c)
Figure 7: (a) Response surface plot and contour surface plot for cumulative percentage drug release at 3 hours (Q3). (b) Response surface plot and contour surface plot for cumulative percentage drug release at 6 hours (Q6). (c) Response surface plot and contour surface plot for cumulative percentage drug release at 9 hours (Q9).