Comparative electrostatic force microscopy of tetra- and intra-molecular G4-DNA

Gideon I. Livshits; Jamal Ghabboun; Natalia Borovok; Alexander B. Kotlyar; Danny Porath

doi:10.1002/adma.201401010

Comparative electrostatic force microscopy of tetra- and intra-molecular G4-DNA

Gideon I. Livshits
, Jamal Ghabboun
, Natalia Borovok
, Alexander B. Kotlyar^*
, Danny Porath

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Two forms of G4-DNA, with parallel and pairwise anti-parallel strands, are studied using atomic force microscopy. The directionality of the strands affects the molecules' structural properties (different height and length) and their electrical polarizability. Parallel G4-DNA is twice as polarizable as anti-parallel G4-DNA, suggesting it is a better electrical wire for bio-nanoelectronics.

Original language	English
Pages (from-to)	4981-4985
Number of pages	5
Journal	Advanced Materials
Volume	26
Issue number	29
DOIs	https://doi.org/10.1002/adma.201401010
State	Published - 6 Aug 2014

Keywords

DNA nanoelectronics
G4-DNA
electrostatic force microscopy (EFM)
molecular electronics

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10.1002/adma.201401010

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AB - Two forms of G4-DNA, with parallel and pairwise anti-parallel strands, are studied using atomic force microscopy. The directionality of the strands affects the molecules' structural properties (different height and length) and their electrical polarizability. Parallel G4-DNA is twice as polarizable as anti-parallel G4-DNA, suggesting it is a better electrical wire for bio-nanoelectronics.

KW - DNA nanoelectronics

KW - G4-DNA

KW - electrostatic force microscopy (EFM)

KW - molecular electronics

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Comparative electrostatic force microscopy of tetra- and intra-molecular G4-DNA

Abstract

Keywords

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