Racemic single-walled carbon nanotubes exhibit circular dichroism when wrapped with DNA

Gordana Dukovic, Milan Balaz, Peter Doak, Nina D. Berova, Ming Zheng, Robert S. Mclean, Louis E. Brus

Research output: Contribution to journalArticle

109 Citations (Scopus)

Abstract

We have found that racemic mixtures of chiral single-walled nanotubes (SWNTs) wrapped with d(GT)20 DNA oligomer exhibit circular dichroism (CD). We attribute the CD signal to induced CD arising from the coupling of transition moments of the SWNTs and the DNA. Although the nanotube mixture appears to contain both enantiomers in equal amounts, DNA-SWNT transition moment interaction is more constructive for one SWNT enantiomer over the other, resulting in an overall CD signal.

Original languageEnglish
Pages (from-to)9004-9005
Number of pages2
JournalJournal of the American Chemical Society
Volume128
Issue number28
DOIs
Publication statusPublished - 2006 Jul 19

Fingerprint

Nanotubes
Carbon Nanotubes
Dichroism
Single-walled carbon nanotubes (SWCN)
Circular Dichroism
DNA
Enantiomers
Oligomers

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Dukovic, Gordana ; Balaz, Milan ; Doak, Peter ; Berova, Nina D. ; Zheng, Ming ; Mclean, Robert S. ; Brus, Louis E. / Racemic single-walled carbon nanotubes exhibit circular dichroism when wrapped with DNA. In: Journal of the American Chemical Society. 2006 ; Vol. 128, No. 28. pp. 9004-9005.
@article{faf0a563e62c4fec8d2f22236602aaab,
title = "Racemic single-walled carbon nanotubes exhibit circular dichroism when wrapped with DNA",
abstract = "We have found that racemic mixtures of chiral single-walled nanotubes (SWNTs) wrapped with d(GT)20 DNA oligomer exhibit circular dichroism (CD). We attribute the CD signal to induced CD arising from the coupling of transition moments of the SWNTs and the DNA. Although the nanotube mixture appears to contain both enantiomers in equal amounts, DNA-SWNT transition moment interaction is more constructive for one SWNT enantiomer over the other, resulting in an overall CD signal.",
author = "Gordana Dukovic and Milan Balaz and Peter Doak and Berova, {Nina D.} and Ming Zheng and Mclean, {Robert S.} and Brus, {Louis E.}",
year = "2006",
month = "7",
day = "19",
doi = "10.1021/ja062095w",
language = "English",
volume = "128",
pages = "9004--9005",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "28",

}

Racemic single-walled carbon nanotubes exhibit circular dichroism when wrapped with DNA. / Dukovic, Gordana; Balaz, Milan; Doak, Peter; Berova, Nina D.; Zheng, Ming; Mclean, Robert S.; Brus, Louis E.

In: Journal of the American Chemical Society, Vol. 128, No. 28, 19.07.2006, p. 9004-9005.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Racemic single-walled carbon nanotubes exhibit circular dichroism when wrapped with DNA

AU - Dukovic, Gordana

AU - Balaz, Milan

AU - Doak, Peter

AU - Berova, Nina D.

AU - Zheng, Ming

AU - Mclean, Robert S.

AU - Brus, Louis E.

PY - 2006/7/19

Y1 - 2006/7/19

N2 - We have found that racemic mixtures of chiral single-walled nanotubes (SWNTs) wrapped with d(GT)20 DNA oligomer exhibit circular dichroism (CD). We attribute the CD signal to induced CD arising from the coupling of transition moments of the SWNTs and the DNA. Although the nanotube mixture appears to contain both enantiomers in equal amounts, DNA-SWNT transition moment interaction is more constructive for one SWNT enantiomer over the other, resulting in an overall CD signal.

AB - We have found that racemic mixtures of chiral single-walled nanotubes (SWNTs) wrapped with d(GT)20 DNA oligomer exhibit circular dichroism (CD). We attribute the CD signal to induced CD arising from the coupling of transition moments of the SWNTs and the DNA. Although the nanotube mixture appears to contain both enantiomers in equal amounts, DNA-SWNT transition moment interaction is more constructive for one SWNT enantiomer over the other, resulting in an overall CD signal.

UR - http://www.scopus.com/inward/record.url?scp=33746063216&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33746063216&partnerID=8YFLogxK

U2 - 10.1021/ja062095w

DO - 10.1021/ja062095w

M3 - Article

VL - 128

SP - 9004

EP - 9005

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 28

ER -