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. Author manuscript; available in PMC: 2008 Aug 1.
Published in final edited form as: Prog Polym Sci. 2007 Aug;32(8-9):1083–1122. doi: 10.1016/j.progpolymsci.2007.05.018

Figure 2.

Figure 2

Scanning electron micrographs of SPHs with pore sizes less than 1 μm (left) and larger than 1 mm (right). The scale bars are 1 μm and 1 mm for the pictures on the left and right, respectively.