Selection of carbon nanotubes with specific chiralities using helical assemblies of flavin mononucleotide

Sang-Yong Ju, Jonathan Doll, Ity Sharma, Fotios Papadimitrakopoulos

Research output: Contribution to journalArticle

179 Citations (Scopus)

Abstract

The chirality of single-walled carbon nanotubes affects many of their physical and electronic properties. Current production methods result in nanotubes of mixed chiralities, so facile extraction of specific chiralities of single-walled carbon nanotubes is an important step in their effective utilization. Here we show that the flavin mononucleotide, a common redox cofactor, wraps around single-walled carbon nanotubes in a helical pattern that imparts efficient individualization and chirality selection. The cooperative hydrogen bonding between adjacent flavin moieties results in the formation of a helical ribbon, which organizes around single-walled carbon nanotubes through concentric π-π interactions between the flavin mononucleotide and the underlying graphene wall. The strength of the helical flavin mononucleotide assembly is strongly dependent on nanotube chirality. In the presence of a surfactant, the flavin mononucleotide assembly is disrupted and replaced without precipitation by a surfactant micelle. The significantly higher affinity of the flavin mononucleotide assembly for (8,6)-single-walled carbon nanotubes results in an 85% chirality enrichment from a nanotube sample with broad diameter distribution.

Original languageEnglish
Pages (from-to)356-362
Number of pages7
JournalNature Nanotechnology
Volume3
Issue number6
DOIs
Publication statusPublished - 2008 Jan 1

Fingerprint

Flavin Mononucleotide
Carbon Nanotubes
Chirality
chirality
assemblies
Single-walled carbon nanotubes (SWCN)
Carbon nanotubes
carbon nanotubes
Nanotubes
nanotubes
assembly
Surface-Active Agents
Surface active agents
surfactants
production engineering
wrap
Graphite
Micelles
Electronic properties
Graphene

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Ju, Sang-Yong ; Doll, Jonathan ; Sharma, Ity ; Papadimitrakopoulos, Fotios. / Selection of carbon nanotubes with specific chiralities using helical assemblies of flavin mononucleotide. In: Nature Nanotechnology. 2008 ; Vol. 3, No. 6. pp. 356-362.
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Selection of carbon nanotubes with specific chiralities using helical assemblies of flavin mononucleotide. / Ju, Sang-Yong; Doll, Jonathan; Sharma, Ity; Papadimitrakopoulos, Fotios.

In: Nature Nanotechnology, Vol. 3, No. 6, 01.01.2008, p. 356-362.

Research output: Contribution to journalArticle

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