Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12945
Title: Detection of bacteria with organic electrochemical transistors
Authors: He, RX
Zhang, M
Tan, F
Leung, PHM 
Zhao, XZ
Chan, HLW 
Yang, M 
Yan, F 
Issue Date: 2012
Publisher: Royal Society of Chemistry
Source: Journal of materials chemistry, 2012, v. 22, no. 41, p. 22072-22076 How to cite?
Journal: Journal of materials chemistry 
Abstract: Organic electrochemical transistors (OECTs) are successfully used for the detection of bacteria (E. coli O157:H7) in KCl electrolytes. The transfer characteristic of the OECT shifts to higher gate voltage after bacteria are captured on the active layer of the device, which can be attributed to the electrostatic interaction between the bacteria and the transistor. The OECT with a Pt gate electrode shows a voltage shift of up to 55 mV after the capture of bacteria. The influence of the ion concentration of the electrolyte on the device performance is also studied. It is expected that the organic transistors will find promising applications as disposable bacteria sensors.
URI: http://hdl.handle.net/10397/12945
ISSN: 0959-9428
EISSN: 1364-5501
DOI: 10.1039/c2jm33667g
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