Identifying single nucleotides by tunnelling current
Source abstract
Abstract
A major goal in medical research is to develop a DNA sequencing technique that is capable of reading an entire human genome at low cost. Recently, it was proposed that DNA sequencing could be performed by measuring the electron transport properties of the individual nucleotides in a DNA molecule. Here, we report electrical detection of single nucleotides using two configurable nanoelectrodes and show that electron transport through single nucleotides occurs by tunnelling. We also demonstrate statistical identification of the nucleotides based on their electrical conductivity, thereby providing an experimental basis for a DNA sequencing technology based on measurements of electron transport.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanopore and Nanochannel Transport Studies · Advanced biosensing and bioanalysis techniques · Molecular Junctions and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
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