Determination of DNA-base orientation on carbon nanotubes through directional optical absorbance

被引：55

作者：

Meng, Sheng

Wang, Wei L.

Maragakis, Paul

Kaxiras, Efthimios ^{[1
]}

机构：

[1] Harvard Univ, Sch Engn & Appl Sci, Dept Phys, Cambridge, MA 02138 USA

[2] DE Shaw Res, New York, NY 10036 USA

来源：

NANO LETTERS | 2007年 / 7卷 / 08期

关键词：

D O I：

10.1021/nl070953w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We develop an approach for determining the orientation of DNA bases attached to carbon nanotubes (CNTs), by combining ab initio time-dependent density functional theory and optical spectroscopy measurements. The structures we find are in good agreement with the geometry of nucleosides on a (10,0) CNT obtained from molecular simulations using empirical force fields. The results shed light into the complex interactions of the DNA-CNT system, a candidate for ultrafast DNA sequencing through electronic probes.

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收藏

页码：2312 / 2316

页数：5

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共 26 条

[1] Calculations and characterization of the electronic spectra of DNA bases based on ab initio MP2 geometries of different tautomeric forms [J].

Broo, A ;

Holmen, A .

JOURNAL OF PHYSICAL CHEMISTRY A, 1997, 101 (19) :3589-3600

[2] CHARMM - A PROGRAM FOR MACROMOLECULAR ENERGY, MINIMIZATION, AND DYNAMICS CALCULATIONS [J].

BROOKS, BR ;

BRUCCOLERI, RE ;

OLAFSON, BD ;

STATES, DJ ;

SWAMINATHAN, S ;

KARPLUS, M .

JOURNAL OF COMPUTATIONAL CHEMISTRY, 1983, 4 (02) :187-217

[3] BASE INCLINATIONS IN NATURAL AND SYNTHETIC DNAS [J].

CHOU, PJ ;

JOHNSON, WC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (04) :1205-1214

[4] TRANSITION MOMENTS OF 2'-DEOXYADENOSINE [J].

CLARK, LB .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (13) :4466-4470

[5] Simulation of DNA-nanotube interactions [J].

Gao, HJ ;

Kong, Y .

ANNUAL REVIEW OF MATERIALS RESEARCH, 2004, 34 :123-150

[6] 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

[7] 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

[8] Assignment of electronic transition moment directions of adenine from linear dichroism measurements [J].

Holmén, A ;

Broo, A ;

Albinsson, B ;

Nordén, B .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (50) :12240-12250

[9] Optical absorption of DNA-carbon nanotube structures [J].

Hughes, Mary E. ;

Brandin, Eric ;

Golovchenko, Jene A. .

NANO LETTERS, 2007, 7 (05) :1191-1194

[10] Detection of DNA hybridization using the near-infrared band-gap fluorescence of single-walled carbon nanotubes [J].

Jeng, ES ;

Moll, AE ;

Roy, AC ;

Gastala, JB ;

Strano, MS .

NANO LETTERS, 2006, 6 (03) :371-375