We propose a new approach for reading the sequence of a DNA molecule passing between electrodes on a nanopore, using hydrogen bond-mediated tunneling signals. The base-electrode interaction is modeled using a nucleo-base-functionalized STM probe that is pulled away from a nucleoside monolayer. Watson-Crick recognition results in slow decay of the tunnel current, which is uniquely characteristic of the basepair in over half the reads. Thirteen independent reads would yield the desired 99.99% accuracy.
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He et al. (2007) studied this question.
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