Carbon nanotube-nucleobase hybrids: Nanorings from uracil-modified single-walled carbon nanotubes

Prabhpreet Singh, Francesca Maria Toma, Jitendra Kumar, V. Venkatesh, Jesus Raya, Maurizio Prato, Sandeep Verma, Alberto Bianco

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


Single-walled carbon nanotubes (SWCNTs) have been covalently functionalized with uracil nucleobase. The hybrids have been characterized by using complementary spectroscopic and microscopic techniques including solid-state NMR spectroscopy. The uracil-functionalized SWCNTs are able to self-assemble into regular nanorings with a diameter of 50-70 nm, as observed by AFM and TEM. AFM shows that the rings do not have a consistent height and thickness, which indicates that they may be formed by separate bundles of CNTs. The simplest model for the nanoring formation likely involves two bundles of CNTs interacting with each other via uracil-uracil base-pairing at both CNT ends. These nanorings can be envisaged for the development of advanced electronic circuits.

Original languageEnglish
Pages (from-to)6772-6780
Number of pages9
JournalChemistry - A European Journal
Issue number24
StatePublished - 6 Jun 2011
Externally publishedYes


  • carbon nanotubes
  • functionalization
  • nanorings
  • nucleobases
  • self-assembly

ASJC Scopus subject areas

  • Chemistry (all)
  • Catalysis
  • Organic Chemistry


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