Figure 3

Optical images of representative single PNA microcapsule (top row) and corresponding size distribution (bottom row). The average diameter of PNA-0, PNA-10, PNA-30, and PNA-50 were 489 ± 31 µm, 480 ± 40 µm, 473 ± 51 µm and 464 ± 35 µm respectively. Scale bar = 200 µm.