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DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...
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Sequencing of mRNA from Whole Blood using Nanopore Sequencing
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DNA molecular electronics - from molecular devices to quantum sequencing.

Yiqun Wu1, Aoxing Sun1, Daifen Yu1

  • 1School of Materials Science and Engineering, Wuhan University of Science and Technology, Wuhan, Hubei, 430081, China. lyu@wust.edu.cn.

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This review explores DNA molecular electronics, classifying electron transport as longitudinal or transverse. It highlights DNA

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Area of Science:

  • Biophysics
  • Materials Science
  • Genomics

Background:

  • DNA molecular electronics leverages DNA's structure and electrical properties.
  • The field integrates biophysics, materials science, and genomics.
  • Electron transport studies form the foundation of DNA molecular electronics.

Purpose of the Study:

  • Organize DNA molecular electronics by electron transport direction: longitudinal vs. transverse.
  • Discuss DNA integration into electronic devices and property modulation.
  • Assess progress and challenges in quantum sequencing for DNA analysis.

Main Methods:

  • Classifying electron transport configurations (longitudinal and transverse).
  • Reviewing DNA integration strategies in molecular electronics.
  • Assessing advancements in quantum sequencing technologies.

Main Results:

  • Longitudinal transport enables DNA-based electronic devices via chain conductance.
  • Transverse transport facilitates base recognition by probing local properties.
  • Progress towards quantum sequencing as a next-gen DNA sequencing technology is assessed.

Conclusions:

  • DNA molecular electronics offers potential for novel devices and sequencing.
  • Modulating DNA's electrical properties is key for practical applications.
  • Overcoming current challenges is crucial for advancing DNA-based molecular electronics.