Shewanella oneidensis MR-1 Bacterial Nanowires Exhibit p-Type, Tunable Electronic Behavior

Leung, Kar Man, Wanger, Greg, El-Naggar, Mohamed Y., Gorby, Yuri, Southam, Gordon, Lau, Woon Ming and Yang, Jun (2013) Shewanella oneidensis MR-1 Bacterial Nanowires Exhibit p-Type, Tunable Electronic Behavior. Nano Letters, 13 6: 2407-2411. doi:10.1021/nl400237p

Author Leung, Kar Man
Wanger, Greg
El-Naggar, Mohamed Y.
Gorby, Yuri
Southam, Gordon
Lau, Woon Ming
Yang, Jun
Title Shewanella oneidensis MR-1 Bacterial Nanowires Exhibit p-Type, Tunable Electronic Behavior
Journal name Nano Letters   Check publisher's open access policy
ISSN 1530-6984
Publication date 2013-06-01
Year available 2013
Sub-type Article (original research)
DOI 10.1021/nl400237p
Open Access Status
Volume 13
Issue 6
Start page 2407
End page 2411
Total pages 5
Place of publication Washington, DC United States
Publisher American Chemical Society
Language eng
Formatted abstract
The study of electrical transport in biomolecular materials is critical to our fundamental understanding of physiology and to the development of practical bioelectronics applications. In this study, we investigated the electronic transport characteristics of Shewanella oneidensis MR-1 nanowires by conducting-probe atomic force microscopy (CP-AFM) and by constructing field-effect transistors (FETs) based on individual S. oneidensis nanowires. Here we show that S. oneidensis nanowires exhibit p-type, tunable electronic behavior with a field-effect mobility on the order of 10-1 cm 2/(V s), comparable to devices based on synthetic organic semiconductors. This study opens up opportunities to use such bacterial nanowires as a new semiconducting biomaterial for making bioelectronics and to enhance the power output of microbial fuel cells through engineering the interfaces between metallic electrodes and bacterial nanowires.
Keyword Bacterial nanowire
Electron Transport
Microbial fuel cell
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID FA9550-10-1-0144
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Earth Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 48 times in Thomson Reuters Web of Science Article | Citations
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Created: Fri, 22 Nov 2013, 03:58:40 EST by Gordon Southam on behalf of School of Earth Sciences