Fluctuation-enhanced sensing of bacterium odors Academic Article

abstract

• The goal of this paper is to explore the possibility to detect and identify bacteria by sensing their odor via fluctuation-enhanced sensing with commercial Taguchi sensors. The fluctuations of the electrical resistance during exposure to different bacterial odors, Escherichia coli and anthrax-surrogate Bacillus subtilis, have been measured and analyzed. In the present study, the simplest method, the measurement and analysis of power density spectra was used. The sensors were run in the normal-heated and the sampling-and-hold working modes, respectively. The results indicate that Taguchi sensors used in these fluctuation-enhanced modes are effective tools of bacterium detection and identification even when they are utilizing only the power density spectrum of the stochastic sensor signal. 2009 Elsevier B.V. All rights reserved.

authors

• King, Maria
• Kish, Laszlo

published proceedings

• SENSORS AND ACTUATORS B-CHEMICAL

author list (cited authors)

• Chang, H., Kish, L. B., King, M. D., & Kwan, C.

citation count

• 14

complete list of authors

• Chang, Hung-Chih||Kish, Laszlo B||King, Maria D||Kwan, Chiman

publication date

• November 2009

publisher

• Elsevier  Publisher

published in

• Sensors and Actuators B: Chemical: international journal devoted to research and development of physical and chemical transducers  Journal

keywords

• Bio Sensing
• Fluctuation-enhanced Sensing
• Gas Sensors
• Odor Sensing
• Taguchi Sensors

Digital Object Identifier (DOI)

• 10.1016/j.snb.2009.04.005

start page

• 429

end page

• 434

volume

• 142

issue

• 2

URL

• http://dx.doi.org/10.1016/j.snb.2009.04.005