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

Livshits, Gideon I; Ghabboun, Jamal; Borovok, Natalia; Kotlyar, Alexander B; Porath, Danny · Adv Mater · 2014

other · Level V

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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.

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