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Sensors 2014, 14(3), 5221-5238; doi:10.3390/s140305221

Olfaction-Inspired Sensing Using a Sensor System with Molecular Recognition and Optimal Classification Ability for Comprehensive Detection of Gases

Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
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Received: 21 January 2014 / Revised: 20 February 2014 / Accepted: 10 March 2014 / Published: 12 March 2014
(This article belongs to the Section Chemical Sensors)
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Abstract

In this study, we examined the comprehensive detection of numerous volatile molecules based on the olfactory information constructed by using olfaction-inspired sensor technology. The sensor system can simultaneously detect multiple odors by the separation and condensation ability of molecularly imprinted filtering adsorbents (MIFAs), where a MIP filter with a molecular sieve was deposited on a polydimethylsiloxane (PDMS) substrate. The adsorption properties of MIFAs were evaluated using the solid-phase microextraction (SPME) and gas chromatography-mass spectrometry (GC-MS). The results demonstrated that the system embedded with MIFAs possesses high sensitivity and specific selectivity. The digitization and comprehensive classification of odors were accomplished by using artificial odor maps constructed through this system. View Full-Text
Keywords: bio-inspired model; molecular recognition; molecular imprinting; odor material classification; odor map; odor clustering bio-inspired model; molecular recognition; molecular imprinting; odor material classification; odor map; odor clustering
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Imahashi, M.; Watanabe, M.; Jha, S.K.; Hayashi, K. Olfaction-Inspired Sensing Using a Sensor System with Molecular Recognition and Optimal Classification Ability for Comprehensive Detection of Gases. Sensors 2014, 14, 5221-5238.

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