Observation of single helical peptide molecule incorporated into alkanethiol self-assembled monolayer on gold by scanning tunneling microscopy

被引：34

作者：

Kitagawa, K ^{[1
]}

Morita, T ^{[1
]}

Kimura, S ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Chem Mat, Nishikyo Ku, Kyoto 6158510, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 39期

关键词：

D O I：

10.1021/jp048333w

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The bicomponent self-assembled monolayers (SAMs) were formed by incorporation of helical peptides into the alkanethiol monolayer, which was prepared in advance on gold substrate, and were characterized by Fourier transform infrared reflection-absorption spectroscopy (FTIR RAS) and scanning tunneling microscopy (STM). FTIR RAS spectra showed that the helical peptides were incorporated into the defects in the alkanethiol SAM without disturbing the film structure. A single helical peptide molecule was observed clearly in the bicomponent SAMs by STM. Several helical peptides associated together in a parallel arrangement to form a helix-bundle structure. Observation of the long molecule of similar to4 nm length standing vertically on the surface indicated that electron transfer occurred over a long distance through the helical peptide under the STM conditions.

引用

页码：15090 / 15095

页数：6

共 54 条

[1] Charge transfer on the nanoscale: Current status [J].

Adams, DM ;

Brus, L ;

Chidsey, CED ;

Creager, S ;

Creutz, C ;

Kagan, CR ;

Kamat, PV ;

Lieberman, M ;

Lindsay, S ;

Marcus, RA ;

Metzger, RM ;

Michel-Beyerle, ME ;

Miller, JR ;

Newton, MD ;

Rolison, DR ;

Sankey, O ;

Schanze, KS ;

Yardley, J ;

Zhu, XY .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (28) :6668-6697

[2] Monolayer assemblies of a de novo designed 4-α-helix bundle carboprotein and its sulfur anchor fragment on Au(111) surfaces addressed by voltammetry and in situ scanning tunneling microscopy [J].

Brask, J ;

Wackerbarth, H ;

Jensen, KJ ;

Zhang, JD ;

Chorkendorff, I ;

Ulstrup, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (01) :94-104

[3] Are single molecular wires conducting? [J].

Bumm, LA ;

Arnold, JJ ;

Cygan, MT ;

Dunbar, TD ;

Burgin, TP ;

Jones, L ;

Allara, DL ;

Tour, JM ;

Weiss, PS .

SCIENCE, 1996, 271 (5256) :1705-1707

[4] Electron transfer through organic molecules [J].

Bumm, LA ;

Arnold, JJ ;

Dunbar, TD ;

Allara, DL ;

Weiss, PS .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (38) :8122-8127

[5]

Carroll RL, 2002, ANGEW CHEM INT EDIT, V41, P4379, DOI 10.1002/1521-3773(20021202)41:23<4378::AID-ANIE4378>3.0.CO

[6]

2-A

[7] Using nanografting to achieve directed assembly of de novo designed metalloproteins on gold [J].

Case, MA ;

McLendon, GL ;

Hu, Y ;

Vanderlick, TK ;

Scoles, G .

NANO LETTERS, 2003, 3 (04) :425-429

[8] Room-temperature negative differential resistance in nanoscale molecular junctions [J].

Chen, J ;

Wang, W ;

Reed, MA ;

Rawlett, AM ;

Price, DW ;

Tour, JM .

APPLIED PHYSICS LETTERS, 2000, 77 (08) :1224-1226

[9] Large on-off ratios and negative differential resistance in a molecular electronic device [J].

Chen, J ;

Reed, MA ;

Rawlett, AM ;

Tour, JM .

SCIENCE, 1999, 286 (5444) :1550-1552

[10] DETERMINATION OF SECONDARY STRUCTURES OF PROTEINS BY CIRCULAR-DICHROISM AND OPTICAL ROTATORY DISPERSION [J].

CHEN, YH ;

YANG, JT ;

MARTINEZ, HM .

BIOCHEMISTRY, 1972, 11 (22) :4120-+

← 1 2 3 4 5 6 →