909647.fig.002a
(a)
909647.fig.002b
(b)
909647.fig.002c
(c)
909647.fig.002d
(d)
Figure 2: Transmission electron micrographs of nanocrystalline particles of (a) MW1–3, (b) MW1–6, (c) MW1–12, and (d) MW1–24.