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Volume 17
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10.3390/s17071606
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Article

Array of Chemosensitive Resistors with Composites of Gas Chromatography (GC) Materials and Carbon Black for Detection and Recognition of VOCs: A Basic Study

by
Bartosz Wyszynski
1,*,
Rui Yatabe
1,*,
Atsuo Nakao
2,
Masaya Nakatani
2,
Akio Oki
2,
Hiroaki Oka
2 and
Kiyoshi Toko
1
1
Research and Development Center for Taste and Odor Sensing, Nishi-ku, Motooka 744, Fukuoka 819-0395, Japan
2
Panasonic Automotive & Industrial Systems Company, Sensing Solutions Development Center, Kadomoa-shi, Oaza Kadoma 1006, Osaka 571-8501, Japan
*
Authors to whom correspondence should be addressed.
Sensors 2017, 17(7), 1606; https://doi.org/10.3390/s17071606
Submission received: 21 April 2017 / Revised: 29 June 2017 / Accepted: 5 July 2017 / Published: 11 July 2017
(This article belongs to the Special Issue Chemiresistive Sensors: Status and the Future)
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Abstract

Mimicking the biological olfaction, large odor-sensor arrays can be used to acquire a broad range of chemical information, with a potentially high degree of redundancy, to allow for enhanced control over the sensitivity and selectivity of artificial olfaction systems. The arrays should consist of the largest possible number of individual sensing elements while being miniaturized. Chemosensitive resistors are one of the sensing platforms that have a potential to satisfy these two conditions. In this work we test viability of fabricating a 16-element chemosensitive resistor array for detection and recognition of volatile organic compounds (VOCs). The sensors were fabricated using blends of carbon black and gas chromatography (GC) stationary-phase materials preselected based on their sorption properties. Blends of the selected GC materials with carbon black particles were subsequently coated over chemosensitive resistor devices and the resulting sensors/arrays evaluated in exposure experiments against vapors of pyrrole, benzenal, nonanal, and 2-phenethylamine at 150, 300, 450, and 900 ppb. Responses of the fabricated 16-element array were stable and differed for each individual odorant sample, proving the blends of GC materials with carbon black particles can be effectively used for fabrication of large odor-sensing arrays based on chemosensitive resistors. The obtained results suggest that the proposed sensing devices could be effective in discriminating odor/vapor samples at the sub-ppm level.
Keywords: odor sensor; chemical sensor; artificial olfaction; chemoresistance; sensor array; GC material; carbon black odor sensor; chemical sensor; artificial olfaction; chemoresistance; sensor array; GC material; carbon black

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MDPI and ACS Style

Wyszynski, B.; Yatabe, R.; Nakao, A.; Nakatani, M.; Oki, A.; Oka, H.; Toko, K. Array of Chemosensitive Resistors with Composites of Gas Chromatography (GC) Materials and Carbon Black for Detection and Recognition of VOCs: A Basic Study. Sensors 2017, 17, 1606. https://doi.org/10.3390/s17071606

AMA Style

Wyszynski B, Yatabe R, Nakao A, Nakatani M, Oki A, Oka H, Toko K. Array of Chemosensitive Resistors with Composites of Gas Chromatography (GC) Materials and Carbon Black for Detection and Recognition of VOCs: A Basic Study. Sensors. 2017; 17(7):1606. https://doi.org/10.3390/s17071606

Chicago/Turabian Style

Wyszynski, Bartosz, Rui Yatabe, Atsuo Nakao, Masaya Nakatani, Akio Oki, Hiroaki Oka, and Kiyoshi Toko. 2017. "Array of Chemosensitive Resistors with Composites of Gas Chromatography (GC) Materials and Carbon Black for Detection and Recognition of VOCs: A Basic Study" Sensors 17, no. 7: 1606. https://doi.org/10.3390/s17071606

APA Style

Wyszynski, B., Yatabe, R., Nakao, A., Nakatani, M., Oki, A., Oka, H., & Toko, K. (2017). Array of Chemosensitive Resistors with Composites of Gas Chromatography (GC) Materials and Carbon Black for Detection and Recognition of VOCs: A Basic Study. Sensors, 17(7), 1606. https://doi.org/10.3390/s17071606

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