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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Nanomedicine. 2013 Aug 20;10(2):401–409. doi: 10.1016/j.nano.2013.08.003

Figure 3.

Figure 3

Vertical focusing in the 3D HFF device (Re = 0.833). Both width and height of the lower microchannel are 100 μm. (A) Perspective views of 3D finite element simulations at the vertical focusing region with round (120 μm in diameter), rectangular (50 μm × 120 μm), rectangular (100 μm × 120 μm), and square (120 μm × 120 μm) shapes of interconnecting holes. Here, the fraction of polymer flow in organic flow (f) is 0.3. (B) Cross-sectional side view and (C) cross-sectional front view of confocal microscopy images at the vertical focusing region when the fraction of polymer flow in organic flow (f) is 0.3. Width and length of interconnecting holes are 120 μm and 100 μm, respectively. Fluid flows in the x-direction after focusing. (D) Height of vertically focused polymeric stream as a function of f. (E) Cross-sectional side view from the 3D finite element simulation and confocal microscope images at the vertical focusing region as a function of f.