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. Author manuscript; available in PMC: 2014 Apr 10.
Published in final edited form as: Chem Rev. 2012 Nov 12;113(4):2584–2667. doi: 10.1021/cr3002142

Figure 30.

Figure 30

Sparse array of posts with diameter d and center-to-center spacing a. During electrophoretic transport the DNA molecules follow the dashed electric field lines. The extensional electrophoretic flow in the extensional zone leads to a deformation of the DNA327 that increases the probability of collision. The focusing zone after the post has electric field lines that tend to drive the DNA into a position that favors collisions with the next post. Reprinted with permission from Ref.158 Copyright 2009 The American Physical Society.158