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Imaging DNA Structure by Atomic Force Microscopy

  • Alice L. B. PyneEmail author
  • Bart W. HoogenboomEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1431)

Abstract

Atomic force microscopy (AFM) is a microscopy technique that uses a sharp probe to trace a sample surface at nanometre resolution. For biological applications, one of its key advantages is its ability to visualize substructure of single molecules and molecular complexes in an aqueous environment. Here, we describe the application of AFM to determine superstructure and secondary structure of surface-bound DNA. The method is also readily applicable to probe DNA–DNA interactions and DNA–protein complexes.

Key words

Atomic force microscopy AFM DNA Supercoiling Double helix DNA–protein binding 

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.London Centre for Nanotechnology and Department of Physics and AstronomyUniversity College LondonLondonUK

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