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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 19.

Figure 19

Schematic illustration of Ogston sieving. The DNA is small compared to the pore size in the gel so it can move freely through the interstices without deformation. Note that the pore spacing in the “gels” in Figure 20 and Figure 21 is identical to this figure, but the DNA is longer.