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Related Concept Videos

Sanger Sequencing01:57

Sanger Sequencing

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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Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores
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Analyzing single DNA molecules by nanopore translocation.

Lorenz J Steinbock1, Ulrich F Keyser

  • 1Cavendish Laboratory, University of Cambridge, Cambridge, UK.

Methods in Molecular Biology (Clifton, N.J.)
|April 25, 2012
PubMed
Summary
This summary is machine-generated.

Detecting single deoxyribonucleic acid (DNA) molecules in nanocapillaries is possible using the resistive-pulse technique. This method allows for detailed analysis of DNA characteristics, including length and charge.

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Area of Science:

  • Biophysics
  • Nanotechnology
  • Molecular Biology

Background:

  • Nanopore technology enables the detection of single molecules in solution.
  • The resistive-pulse technique is a key method for analyzing molecules like deoxyribonucleic acid (DNA).

Purpose of the Study:

  • To detail the experimental procedures for measuring single DNA molecules in nanocapillaries.
  • To discuss data analysis methods for observing single molecule events.

Main Methods:

  • Utilizing nanocapillaries for single molecule detection.
  • Applying the resistive-pulse technique for measurements.
  • Implementing specific data analysis protocols.

Main Results:

  • Successful measurement of single DNA molecules in nanocapillaries.
  • Demonstration of techniques to ensure observation of single molecule events.
  • Characterization of DNA length, charge, and folding state.

Conclusions:

  • Nanocapillaries and the resistive-pulse technique are effective for single DNA molecule analysis.
  • Established procedures allow for reliable measurement and data interpretation.
  • This technique provides insights into the physical properties of individual DNA molecules.