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

被引：112

作者：

Dukovic, Gordana ^{[1
]}

Balaz, Milan

Doak, Peter

Berova, Nina D.

Zheng, Ming

Mclean, Robert S.

Brus, Louis E.

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

[2] DuPont Co Inc, Cent Res & Dev, Expt Stn, Wilmington, DE 19880 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 28期

关键词：

D O I：

10.1021/ja062095w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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. Copyright © 2006 American Chemical Society.

引用

页码：9004 / 9005

页数：2

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