Molecular sensing with the tunnel junction of an Au nanogap in solution

被引：15

作者：

Dong, Xiaodong ^{[1
]}

Xia, Yong ^{[1
]}

Zhu, Guoyi ^{[1
]}

Zhang, Bailin ^{[1
]}

机构：

[1] Grad Univ Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China

来源：

NANOTECHNOLOGY | 2007年 / 18卷 / 39期

关键词：

D O I：

10.1088/0957-4484/18/39/395502

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

The tunnel junction of a gold nanogap was fabricated electrochemically for a molecular sensing device in solution. The tunnel junction was sensitive enough to detect the variation of a potential barrier within the nanogap, such as the chemical adsorption of molecules. By monitoring the variation of the tunneling current, which represents the change of a potential barrier due to molecular adsorption, the molecules could be detected.

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页数：6

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共 43 条

[1]

Scanning tunneling spectroscopy investigation of self-assembled plastocyanin mutants onto gold substrates under controlled environment [J].

Andolfi, L ;

Canters, GW ;

Verbeet, MP ;

Cannistraro, S .

BIOPHYSICAL CHEMISTRY, 2004, 107 (02) :107-116

[2]

Enzyme-coated carbon nanotubes as single-molecule biosensors [J].

Besteman, K ;

Lee, JO ;

Wiertz, FGM ;

Heering, HA ;

Dekker, C .

NANO LETTERS, 2003, 3 (06) :727-730

[3]

Molecular adsorption onto metallic quantum wires [J].

Bogozi, A ;

Lam, O ;

He, HX ;

Li, CZ ;

Tao, NJ ;

Nagahara, LA ;

Amlani, I ;

Tsui, R .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (19) :4585-4590

[4]

Discrete tunneling current fluctuations in metal-water-metal tunnel junctions [J].

Boussaad, S ;

Xu, BQ ;

Nagahara, LA ;

Amlani, I ;

Schmickler, W ;

Tsui, R ;

Tao, NJ .

JOURNAL OF CHEMICAL PHYSICS, 2003, 118 (19) :8891-8897

[5]

Local density of states effects at the metal-molecule interfaces in amolecular device [J].

Boyen, HG ;

Ziemann, P ;

Wiedwald, U ;

Ivanova, V ;

Kolb, DM ;

Sakong, S ;

Gross, A ;

Romanyuk, A ;

Büttner, M ;

Oelhafen, P .

NATURE MATERIALS, 2006, 5 (05) :394-399

[6]

Nanowire-based molecular monolayer junctions: Synthesis, assembly, and electrical characterization [J].

Cai, LT ;

Skulason, H ;

Kushmerick, JG ;

Pollack, SK ;

Naciri, J ;

Shashidhar, R ;

Allara, DL ;

Mallouk, TE ;

Mayer, TS .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (09) :2827-2832

[7]

Interfacial scattering at electrochemically fabricated atom-scale junctions between thin gold film electrodes in a microfluidic channel [J].

Castle, PJ ;

Bohn, PW .

ANALYTICAL CHEMISTRY, 2005, 77 (01) :243-249

[8]

Electrochemical approach for fabricating nanogap electrodes with well controllable separation [J].

Chen, F ;

Qing, Q ;

Ren, L ;

Wu, ZY ;

Liu, ZF .

APPLIED PHYSICS LETTERS, 2005, 86 (12) :1-3

[9]

Reproducible measurement of single-molecule conductivity [J].

Cui, XD ;

Primak, A ;

Zarate, X ;

Tomfohr, J ;

Sankey, OF ;

Moore, AL ;

Moore, TA ;

Gust, D ;

Harris, G ;

Lindsay, SM .

SCIENCE, 2001, 294 (5542) :571-574

[10]

Fabrication of asymmetric electrode pairs with nanometer separation made of two distinct metals [J].

Deshmukh, MM ;

Prieto, AL ;

Gu, Q ;

Park, H .

NANO LETTERS, 2003, 3 (10) :1383-1385

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