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. Author manuscript; available in PMC: 2011 Jun 15.
Published in final edited form as: Biotechnol Bioeng. 2010 Jun 15;106(3):501–506. doi: 10.1002/bit.22678

Fig1.

Fig1

Schematic of surface architecture for m1000 (A) and m1000b2000 (B). Representative FESEM micrographs of the m1000 (C) and m1000b2000 (D) UCAs show a heterogeneous population of spheres (whole and dimpled), and shells. The diameters of the m1000 particles (E) and the m1000b2000 particles (F) are lognormally distributed with a mean diameter of 1.0 ± 0.5 μm and 0.9 ± 0.5 μm respectively. The B-mode images show the echo strength converted to brightness of the m1000 (G) and m1000b2000 (H) UCAs.