Synthesis of Long DNA-Based Nanowires

  • Alexander KotlyarEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 749)


Here we describe novel procedures for production of DNA-based nanowires. This include synthesis and characterization of the one-to-one double-helical complex of poly(dG)–poly(dC), triple-helical poly(dG)–poly(dG)–poly(dC) and G4-DNA, which is a quadruple-helical form of DNA. All these types of DNA-based molecules were synthesized enzymatically using Klenow exo fragment of DNA Polymerase I. All the above types of nanowires are characterized by a narrow-size distribution of molecules. The contour length of the molecules can be varied from tens to hundreds of nanometers. These structures possess improved conductive and mechanical properties with respect to a canonical random-sequenced DNA and can possibly be used as wire-like conducting or semiconducting nanostructures in the field of nanoelectronics.

Key words

DNA nanowires Enzymatic synthesis Klenow exo Poly(dG)–poly(dC) G4-DNA Triplex DNA 



This work was supported by the EC through the contracts IST-2001-38951 (“DNA-Based Nanowires”) and FP6-029192 (“DNA-Based Nanodevices”).


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Department of Biochemistry, The George S. Wise Faculty of Life SciencesTel Aviv UniversityRamat AvivIsrael

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