Translocation of single-wall carbon nanotubes through solid-state nanopores

Adam R. Hall, Johannes M. Keegstra, Matthew C. Duch, Mark C. Hersam, Cees Dekker

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We report the translocation of individual single-wall carbon nanotubes (SWNTs) through solid-state nanopores. Single-strand DNA oligomers are used to both disperse the SWNTs in aqueous solution and to provide them with a net charge, allowing them to be driven through the nanopores by an applied electric field. The resulting temporary interruptions in the measured nanopore conductance provide quantitative information on the diameter and length of the translocated nanotubes at a single-molecule level. Furthermore, we demonstrate that the technique can be utilized to monitor bundling of SWNT in solution by using complementary nucleotides to induce tube - tube agglomeration.

Original languageEnglish
Pages (from-to)2446-2450
Number of pages5
JournalNano letters
Volume11
Issue number6
DOIs
Publication statusPublished - Jun 8 2011

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Keywords

  • SWNT
  • Solid-state nanopores
  • bundling
  • nanotube
  • translocation

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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