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

收藏

页码：9004 / 9005

页数：2

相关论文

共 17 条

[1] Induced circular dichroism by chiral molecular interaction [J].

Allenmark, S .

CHIRALITY, 2003, 15 (05) :409-422

[2]

Ardhamar M., 2000, Circular dichroism: principles and applications, V2nd

[3] Phonon-assisted excitonic recombination channels observed in DNA-wrapped carbon nanotubes using photoluminescence spectroscopy [J].

Chou, SG ;

Plentz, F ;

Jiang, J ;

Saito, R ;

Nezich, D ;

Ribeiro, HB ;

Jorio, A ;

Pimenta, MA ;

Samsonidze, GG ;

Santos, AP ;

Zheng, M ;

Onoa, GB ;

Semke, ED ;

Dresselhaus, G ;

Dresselhaus, MS .

PHYSICAL REVIEW LETTERS, 2005, 94 (12) :1-4

[4] Sequence-independent helical wrapping of singles-walled carbon nanotubes by long genomic DNA [J].

Gigliotti, B ;

Sakizzie, B ;

Bethune, DS ;

Shelby, RM ;

Cha, JN .

NANO LETTERS, 2006, 6 (02) :159-164

[5] CIRCULAR-DICHROISM EVIDENCE FOR G.U AND G.T BASE-PAIRING IN POLY[R(G-U)] AND POLY[D(G-T)] [J].

GRAY, DM ;

RATLIFF, RL .

BIOPOLYMERS, 1977, 16 (06) :1331-1342

[6] Optical detection of DNA conformational polymorphism on single-walled carbon nanotubes [J].

Heller, DA ;

Jeng, ES ;

Yeung, TK ;

Martinez, BM ;

Moll, AE ;

Gastala, JB ;

Strano, MS .

SCIENCE, 2006, 311 (5760) :508-511

[7] Single carbon nanotubes probed by photoluminescence excitation spectroscopy: The role of phonon-assisted transitions [J].

Htoon, H ;

O'Connell, MJ ;

Doorn, SK ;

Klimov, VI .

PHYSICAL REVIEW LETTERS, 2005, 94 (12) :1-4

[8]

Ivchenko EL, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.155404

[9] WOBBLY DOUBLE HELIX [J].

LEZIUS, AG ;

DOMIN, E .

NATURE-NEW BIOLOGY, 1973, 244 (136) :169-170

[10] MECHANISM OF INDUCED CIRCULAR-DICHROISM OF AMINO-ACID ESTER-PORPHYRIN SUPRAMOLECULAR SYSTEMS - IMPLICATIONS TO THE ORIGIN OF THE CIRCULAR-DICHROISM OF HEMOPROTEIN [J].

MIZUTANI, T ;

EMA, T ;

YOSHIDA, T ;

RENNE, T ;

OGOSHI, H .

INORGANIC CHEMISTRY, 1994, 33 (16) :3558-3566