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Single-walled carbon nanotubes with DNA recognition

journal contribution
posted on 2007-08-06, 00:00 authored by Wenrong YangWenrong Yang, M Moghaddam, S Taylor, B Bojarski, L Wieczorek, J Herrmann, M McCall
Two methods for attaching DNA to oxidized single-walled carbon nanotubes either in organic solvent or aqueous solution are described. The sites of DNA attachment to the nanotubes have been verified by binding gold nanoparticles modified with DNA of complementary sequence to the DNA-modified nanotubes, and imaging with TEM. The gold nanoparticles appear on the tips of the nanotubes, and at isolated positions (defects) on the sidewalls. The methods provide versatility for the modification of nanotubes with DNA for their directed assembly, or for their composites with gold nanoparticles, into nanoscale devices.

History

Journal

Chemical physics letters

Volume

443

Issue

4-6

Pagination

169 - 172

Publisher

Elsevier BV

Location

Amsterdam , The Netherlands

ISSN

0009-2614

eISSN

1873-4448

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2007, Elsevier B.V.

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