Research Article

Optimization of Formulation and Operating Parameters for Ginkgo biloba Extract Nanosuspension by Wet Ball Milling Using a Box–Behnken Design

Figure 9

SEM micrographs of GBE particles at different conditions: (a) raw material; (b) 13.2 g/L, 8 m/s, 1 h, 0.1 g/L; and (c) 7.5 g/L, 9.3 m/s, 1.5 h, 0.8 g/L.
(a)
(b)
(c)