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. Author manuscript; available in PMC: 2009 Sep 21.
Published in final edited form as: Nat Nanotechnol. 2008 Feb 10;3(3):163–167. doi: 10.1038/nnano.2008.4

Figure 3. Mismatches have a large effect on DNA conductance.

Figure 3

a, Replacing well-matched (WM) duplexes with CA and GT mismatches. b, Source–drain current versus VG at a constant source–drain voltage (50 mV) for a SWNT device taken through the sequence 1 through 6. The current levels for points 2, 3, 5 and 6 are ~300 times lower. c, Source–drain current at VG = −3 V at a constant source–drain voltage (50 mV) for the sequence 1 through 6.