Research Article

Design, Development, and Optimization of Polymeric Based-Colonic Drug Delivery System of Naproxen

Figure 7

Scanning electron microscopy of optimized batch (NF4), obtained before dissolution (a), after 2 h dissolution at pH 1.2 (b), after 5 h dissolution at pH 6.8 (c), and during dissolution study at pH 7.4 (d).
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(a)
654829.fig.007b
(b)
654829.fig.007c
(c)
654829.fig.007d
(d)