Transistor-like Behavior of Single Metalloprotein Junctions

被引：95

作者：

Artes, Juan M. ^{[1
,2
]}

Diez-Perez, Ismael ^{[1
,2
]}

Gorostiza, Pau ^{[1
]}

机构：

[1] Inst Bioengn Catalonia IBEC, Barcelona 08028, Spain

[2] Univ Barcelona, Dept Phys Chem, E-08028 Barcelona, Spain

来源：

NANO LETTERS | 2012年 / 12卷 / 06期

关键词：

Redox protein; STM; molecular electronics; molecular junctions; electrochemical gate; azurin transistor; ELECTRON-TRANSFER; MOLECULAR JUNCTIONS; CONDUCTANCE; PROTEINS; MECHANISM; TRANSITION; SIGNATURES; TRANSPORT; AZURIN; RANGE;

D O I：

10.1021/nl2028969

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Single protein junctions consisting of azurin bridged between a gold substrate and the probe of an electrochemical tunneling microscope (ECSTM) have been obtained by two independent methods that allowed statistical analysis over a large number of measured junctions. Conductance measurements yield (7.3 +/- 1.5) x 10(-6)G(0) in agreement with reported estimates using other techniques. Redox gating of the protein with an on/off ratio of 20 was demonstrated and constitutes a proof-of-principle of a single redox protein field-effect transistor.

引用

页码：2679 / 2684

页数：6

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