The Handedness of DNA Assembly around Carbon Nanotubes Is Determined by the Chirality of DNA

Gül H. Zerze, Frank H. Stillinger, Pablo G. Debenedetti

Research output: Contribution to journalArticle

Abstract

Single-stranded DNA chains enable postsynthesis sorting of single-walled carbon nanotubes (CNTs) according to their diameter and helicity by wrapping helically around CNT surfaces. Both DNA chains and CNTs in these CNT-DNA conjugates are intrinsically chiral. Using a single-stranded DNA chain in both of its chiral realizations, we systematically study cross-chiral interactions between DNA and CNTs by varying the helicity of CNTs within a relatively narrow range of diameters. We find that regardless of the helicity or handedness of the carbon nanotube, the chirality of DNA dictates the handedness of its predominant helical wrap around carbon nanotubes.

Original languageEnglish (US)
Pages (from-to)5362-5369
Number of pages8
JournalJournal of Physical Chemistry B
Volume124
Issue number26
DOIs
StatePublished - Jul 2 2020

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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