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Scanning electron micrographs of PLGA PRINT particles: (A) 80 ×320 nm cylinders, (B) 200 ×200 nm cylinders, (C) 200 ×600 nm cylinders, (D) 1 μm sphere approximates, (E) 2 μm cubes with ridges, and (F) 3 μm particles with center fenestrations. Scale bars: (A) 5 μm, (B) 4 μm, (C) 3 μm, (D) 10 μm, (E) 3 μm, and (F) 20 μm. Reprinted with permission from ref 43. Copyright 2011 American Chemical Society.
