Fish Gelatin-based Films for Gas Sensing

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

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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Paper Citation


in Harvard Style

Moreira I., Sato L., Alves C., Palma S. and Roque A. (2021). Fish Gelatin-based Films for Gas Sensing.In Proceedings of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES, ISBN 978-989-758-490-9, pages 32-39. DOI: 10.5220/0010206200320039


in Bibtex Style

@conference{biodevices21,
author={Inês Moreira and Laura Sato and Cláudia Alves and Susana Palma and Ana Roque},
title={Fish Gelatin-based Films for Gas Sensing},
booktitle={Proceedings of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES,},
year={2021},
pages={32-39},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010206200320039},
isbn={978-989-758-490-9},
}


in EndNote Style

TY - CONF

JO - Proceedings of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES,
TI - Fish Gelatin-based Films for Gas Sensing
SN - 978-989-758-490-9
AU - Moreira I.
AU - Sato L.
AU - Alves C.
AU - Palma S.
AU - Roque A.
PY - 2021
SP - 32
EP - 39
DO - 10.5220/0010206200320039