Persistence length control of the polyelectrolyte layer-by-layer self-assembly on carbon nanotubes

Shih Chieh J Huang, Alexander B. Artyukhin, Yinmin Wang, Jiann Wen Ju, Pieter Stroeve, Aleksandr Noy

Research output: Contribution to journalArticle

39 Scopus citations

Abstract

We have studied layer-by-layer polyelectrolyte self-assembly on pristine individual single-wall carbon nanotubes as a function of solution ionic strength. We report the existence of an ionic strength threshold for the deposition, below which the majority of nanotubes remain uncoated. Once the ionic strength reaches the threshold value, the majority of the individual nanotubes become coated with polyelectrolytes. Our results indicate that the self-assembly process likely involves wrapping of polymer chains around nanotubes and that the polymer chain's ability to bend in order to accommodate the nanotube curvature is one of the critical parameters controlling layer-by-layer electrostatic self-assembly on these one-dimensional templates.

Original languageEnglish (US)
Pages (from-to)14176-14177
Number of pages2
JournalJournal of the American Chemical Society
Volume127
Issue number41
DOIs
StatePublished - Oct 19 2005
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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