Fish gelatin-based films for gas sensing

Inês Pimentel Moreira; Laura Sato; Cláudia Alves; Susana Palma; Ana Cecília Roque

doi:10.5220/0010206200320039

Fish gelatin-based films for gas sensing

Inês Pimentel Moreira, Laura Sato, Cláudia Alves, Susana Palma, Ana Cecília Roque

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Abstract

Electronic noses (e-noses) mimic the complex biological olfactory system, usually including an array of gas sensors to act as the olfactory receptors and a trained computer with signal-processing and pattern recognition tools as the brain. In this work, a new stimuli-responsive material is shown, consisting of self-assembled droplets of liquid crystal and ionic liquid stabilised within a fish gelatin matrix. These materials change their opto/electrical properties upon contact with volatile organic compounds (VOCs). By using an in-house developed e-nose, these new gas-sensing films yield characteristic optical signals for VOCs from different chemical classes. A support vector machine classifier was implemented based on 12 features of the signals. The results show that the films are excellent identifying hydrocarbon VOCs (toluene, heptane and hexane) (95% accuracy) but lower performance was found to other VOCs, resulting in an overall 60.4% accuracy. Even though they are not reusable, these sustainable gas-sensing films are stable throughout time and reproducible, opening several opportunities for future optoelectronic devices and artificial olfaction systems.

Original language	English
Title of host publication	BIODEVICES 2021 - 14th International Conference on Biomedical Electronics and Devices; Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021
Editors	Claudine Gehin, Bruno Wacogne, Ana Fred, Hugo Gamboa
Publisher	SciTePress - Science and Technology Publications
Pages	32-39
Number of pages	8
Volume	1
ISBN (Electronic)	9789897584909
DOIs	https://doi.org/10.5220/0010206200320039
Publication status	Published - 2021
Event	14th International Conference on Biomedical Electronics and Devices, BIODEVICES 2021 - Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021 - Virtual, Online Duration: 11 Feb 2021 → 13 Feb 2021

Conference

Conference	14th International Conference on Biomedical Electronics and Devices, BIODEVICES 2021 - Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021
City	Virtual, Online
Period	11/02/21 → 13/02/21

Keywords

Electronic nose
Fish gelatin
Gas-sensing
Ionic liquid
Liquid crystal
Volatile organic compounds

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10.5220/0010206200320039Licence: CC BY-NC-ND

Fish Gelatin-based Films for Gas SensingFinal published version, 4.9 MBLicence: CC BY-NC-ND

Cite this

Moreira, I. P., Sato, L., Alves, C., Palma, S., & Roque, A. C. (2021). Fish gelatin-based films for gas sensing. In C. Gehin, B. Wacogne, A. Fred, & H. Gamboa (Eds.), BIODEVICES 2021 - 14th International Conference on Biomedical Electronics and Devices; Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021 (Vol. 1, pp. 32-39). SciTePress - Science and Technology Publications. https://doi.org/10.5220/0010206200320039

Moreira, Inês Pimentel ; Sato, Laura ; Alves, Cláudia et al. / Fish gelatin-based films for gas sensing. BIODEVICES 2021 - 14th International Conference on Biomedical Electronics and Devices; Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021. editor / Claudine Gehin ; Bruno Wacogne ; Ana Fred ; Hugo Gamboa. Vol. 1 SciTePress - Science and Technology Publications, 2021. pp. 32-39

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abstract = "Electronic noses (e-noses) mimic the complex biological olfactory system, usually including an array of gas sensors to act as the olfactory receptors and a trained computer with signal-processing and pattern recognition tools as the brain. In this work, a new stimuli-responsive material is shown, consisting of self-assembled droplets of liquid crystal and ionic liquid stabilised within a fish gelatin matrix. These materials change their opto/electrical properties upon contact with volatile organic compounds (VOCs). By using an in-house developed e-nose, these new gas-sensing films yield characteristic optical signals for VOCs from different chemical classes. A support vector machine classifier was implemented based on 12 features of the signals. The results show that the films are excellent identifying hydrocarbon VOCs (toluene, heptane and hexane) (95% accuracy) but lower performance was found to other VOCs, resulting in an overall 60.4% accuracy. Even though they are not reusable, these sustainable gas-sensing films are stable throughout time and reproducible, opening several opportunities for future optoelectronic devices and artificial olfaction systems.",

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Moreira, IP , Sato, L , Alves, C , Palma, S & Roque, AC 2021, Fish gelatin-based films for gas sensing. in C Gehin, B Wacogne, A Fred & H Gamboa (eds), BIODEVICES 2021 - 14th International Conference on Biomedical Electronics and Devices; Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021. vol. 1, SciTePress - Science and Technology Publications, pp. 32-39, 14th International Conference on Biomedical Electronics and Devices, BIODEVICES 2021 - Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021, Virtual, Online, 11/02/21. https://doi.org/10.5220/0010206200320039

Fish gelatin-based films for gas sensing. / Moreira, Inês Pimentel ; Sato, Laura ; Alves, Cláudia et al.
BIODEVICES 2021 - 14th International Conference on Biomedical Electronics and Devices; Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021. ed. / Claudine Gehin; Bruno Wacogne; Ana Fred; Hugo Gamboa. Vol. 1 SciTePress - Science and Technology Publications, 2021. p. 32-39.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Fish gelatin-based films for gas sensing

AU - Moreira, Inês Pimentel

AU - Sato, Laura

AU - Alves, Cláudia

AU - Palma, Susana

AU - Roque, Ana Cecília

N1 - info:eu-repo/grantAgreement/EC/H2020/639123/EU# UID/Multi/04378/2020

PY - 2021

Y1 - 2021

N2 - Electronic noses (e-noses) mimic the complex biological olfactory system, usually including an array of gas sensors to act as the olfactory receptors and a trained computer with signal-processing and pattern recognition tools as the brain. In this work, a new stimuli-responsive material is shown, consisting of self-assembled droplets of liquid crystal and ionic liquid stabilised within a fish gelatin matrix. These materials change their opto/electrical properties upon contact with volatile organic compounds (VOCs). By using an in-house developed e-nose, these new gas-sensing films yield characteristic optical signals for VOCs from different chemical classes. A support vector machine classifier was implemented based on 12 features of the signals. The results show that the films are excellent identifying hydrocarbon VOCs (toluene, heptane and hexane) (95% accuracy) but lower performance was found to other VOCs, resulting in an overall 60.4% accuracy. Even though they are not reusable, these sustainable gas-sensing films are stable throughout time and reproducible, opening several opportunities for future optoelectronic devices and artificial olfaction systems.

AB - Electronic noses (e-noses) mimic the complex biological olfactory system, usually including an array of gas sensors to act as the olfactory receptors and a trained computer with signal-processing and pattern recognition tools as the brain. In this work, a new stimuli-responsive material is shown, consisting of self-assembled droplets of liquid crystal and ionic liquid stabilised within a fish gelatin matrix. These materials change their opto/electrical properties upon contact with volatile organic compounds (VOCs). By using an in-house developed e-nose, these new gas-sensing films yield characteristic optical signals for VOCs from different chemical classes. A support vector machine classifier was implemented based on 12 features of the signals. The results show that the films are excellent identifying hydrocarbon VOCs (toluene, heptane and hexane) (95% accuracy) but lower performance was found to other VOCs, resulting in an overall 60.4% accuracy. Even though they are not reusable, these sustainable gas-sensing films are stable throughout time and reproducible, opening several opportunities for future optoelectronic devices and artificial olfaction systems.

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KW - Gas-sensing

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KW - Liquid crystal

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BT - BIODEVICES 2021 - 14th International Conference on Biomedical Electronics and Devices; Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021

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A2 - Gamboa, Hugo

PB - SciTePress - Science and Technology Publications

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Moreira IP , Sato L , Alves C , Palma S , Roque AC. Fish gelatin-based films for gas sensing. In Gehin C, Wacogne B, Fred A, Gamboa H, editors, BIODEVICES 2021 - 14th International Conference on Biomedical Electronics and Devices; Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021. Vol. 1. SciTePress - Science and Technology Publications. 2021. p. 32-39 doi: 10.5220/0010206200320039

Fish gelatin-based films for gas sensing

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