Identification of Bacteria by Patterns Generated from Odor Spectra

Details Identification of Bacteria by Patterns Generated from Odor Spectra Identification of Bacteria by Patterns Generated from Odor Spectra

2009-02-09

arxiv.org/abs/0902.1368v1

Sensors and Actuators B 142 (2009) pp. 429-434

Physics

General Physics

Continuation of paper arXiv:0901.3100

Scientific paper

We use the power density spectra obtained by fluctuation-enhanced sensing of bacterial odors (Escherichia coli and Anthrax-surrogate Bacillus subtilis) to generate new, highly distinguishable, types of patterns based on the average slope of the spectra in different frequency ranges. Such plots can be considered as "fingerprints" of bacterial odors. Three different ways of pattern generation are tested, including a simple binary version. The obtained patterns are simple enough to identify the situation by the naked eye without a pattern recognizer.

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