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

doi:10.1002/chem.201100312

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 journal › Article › peer-review

41 Scopus citations

Abstract

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 language	English
Pages (from-to)	6772-6780
Number of pages	9
Journal	Chemistry - A European Journal
Volume	17
Issue number	24
DOIs	https://doi.org/10.1002/chem.201100312
State	Published - 6 Jun 2011
Externally published	Yes

Keywords

carbon nanotubes
functionalization
nanorings
nucleobases
self-assembly

ASJC Scopus subject areas

Chemistry (all)
Catalysis
Organic Chemistry

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10.1002/chem.201100312

Cite this

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abstract = "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.",

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AU - Singh, Prabhpreet

AU - Toma, Francesca Maria

AU - Kumar, Jitendra

AU - Venkatesh, V.

AU - Raya, Jesus

AU - Prato, Maurizio

AU - Verma, Sandeep

AU - Bianco, Alberto

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Y1 - 2011/6/6

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KW - self-assembly

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

Abstract

Keywords

ASJC Scopus subject areas

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