909647.fig.004a
(a)
909647.fig.004b
(b)
909647.fig.004c
(c)
909647.fig.004d
(d)
Figure 4: Transmission electron micrographs of nanocrystalline particles of (a) MW1–3, (b) MW2–1.5, (c) MW8–0.38, and (d) MW16–0.19.