Assembly of single-walled carbon nanotubes on DNA-origami templates through streptavidin-biotin interaction

Antti Pekka Eskelinen, Anton Kuzyk, Toni K. Kaltiaisenaho, Marina Y. Timmermans, Albert G. Nasibulin, Esko I. Kauppinen, Päivi Törmä

Research output: Contribution to journalArticlepeer-review

75 Citations (Scopus)

Abstract

Precise positioning of carbon nanotubes (CNTs) on DNA-origami structures is achieved by utilization of simple streptavidin-biotin interactions. Assembly of both single CNT and CNT cross-junctions on DNA-origami templates with relatively high yield is demonstrated. The assembly of a single nanowire on a DNA-origami nanoscale template is potentially useful for sensing applications, whereas cross-junctions can be utilized for the fabrication of electrical devices (e.g., transistors). The simplicity and cost efficiency of the proposed method make it a promising tool for controlled and accurate assembly of devices and circuits on the nanoscale.

Original languageEnglish
Pages (from-to)746-750
Number of pages5
JournalSmall
Volume7
Issue number6
DOIs
Publication statusPublished - 21 Mar 2011
Externally publishedYes

Keywords

  • DNA templates
  • nanomanipulation
  • self-assembly
  • single-walled carbon nanotubes

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