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Sensors 2012, 12(3), 3449-3471; doi:10.3390/s120303449

New Trends in Impedimetric Biosensors for the Detection of Foodborne Pathogenic Bacteria

College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
* Author to whom correspondence should be addressed.
Received: 10 February 2012 / Revised: 23 February 2012 / Accepted: 23 February 2012 / Published: 12 March 2012
(This article belongs to the Special Issue Sensing at the Nano-Scale: Chemical and Bio-Sensing)
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The development of a rapid, sensitive, specific method for the foodborne pathogenic bacteria detection is of great importance to ensure food safety and security. In recent years impedimetric biosensors which integrate biological recognition technology and impedance have gained widespread application in the field of bacteria detection. This paper presents an overview on the progress and application of impedimetric biosensors for detection of foodborne pathogenic bacteria, particularly the new trends in the past few years, including the new specific bio-recognition elements such as bacteriophage and lectin, the use of nanomaterials and microfluidics techniques. The applications of these new materials or techniques have provided unprecedented opportunities for the development of high-performance impedance bacteria biosensors. The significant developments of impedimetric biosensors for bacteria detection in the last five years have been reviewed according to the classification of with or without specific bio-recognition element. In addition, some microfluidics systems, which were used in the construction of impedimetric biosensors to improve analytical performance, are introduced in this review.
Keywords: impedimetric biosensors; foodborne pathogenic bacteria; nanomaterials; microfluidics technique impedimetric biosensors; foodborne pathogenic bacteria; nanomaterials; microfluidics technique
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Wang, Y.; Ye, Z.; Ying, Y. New Trends in Impedimetric Biosensors for the Detection of Foodborne Pathogenic Bacteria. Sensors 2012, 12, 3449-3471.

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