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Fish gelatin-based films for gas sensing

2021Documento de conferência Acesso aberto
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dc.contributor.authorMoreira, Inês Pimentel
dc.contributor.authorSato, Laura
dc.contributor.authorAlves, Cláudia
dc.contributor.authorPalma, Susana
dc.contributor.authorRoque, Ana Cecília
dc.contributor.institutionUCIBIO - Applied Molecular Biosciences Unit
dc.contributor.institutionDQ - Departamento de Química
dc.date.accessioned2022-07-06T22:15:26Z
dc.date.available2022-07-06T22:15:26Z
dc.date.issued2021
dc.descriptionUID/Multi/04378/2020
dc.description.abstractElectronic 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.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent8
dc.format.extent5132912
dc.identifier.doi10.5220/0010206200320039
dc.identifier.isbn9789897584909
dc.identifier.otherPURE: 36734066
dc.identifier.otherPURE UUID: a9054964-b37e-4d45-a2a1-03365b4ce911
dc.identifier.otherScopus: 85103826522
dc.identifier.otherWOS: 000664115200002
dc.identifier.otherORCID: /0000-0002-1851-8110/work/113944947
dc.identifier.urihttp://hdl.handle.net/10362/141468
dc.identifier.urlhttps://www.scopus.com/pages/publications/85103826522
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSciTePress - Science and Technology Publications
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/639123/EU
dc.relationSCENT: Hybrid Gels for Rapid Microbial Detection
dc.subjectElectronic nose
dc.subjectFish gelatin
dc.subjectGas-sensing
dc.subjectIonic liquid
dc.subjectLiquid crystal
dc.subjectVolatile organic compounds
dc.subjectBiomedical Engineering
dc.subjectElectrical and Electronic Engineering
dc.titleFish gelatin-based films for gas sensingen
dc.typeconference object
degois.publication.firstPage32
degois.publication.lastPage39
degois.publication.titleBIODEVICES 2021 - 14th International Conference on Biomedical Electronics and Devices; Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021
degois.publication.title14th International Conference on Biomedical Electronics and Devices, BIODEVICES 2021 - Part of the 14th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2021
degois.publication.volume1
dspace.entity.typePublication
oaire.awardNumber639123
oaire.awardTitleSCENT: Hybrid Gels for Rapid Microbial Detection
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/639123/EU
oaire.fundingStreamH2020
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccess
relation.isProjectOfPublicationbfeee009-c776-416d-938d-a470ba963858
relation.isProjectOfPublication.latestForDiscoverybfeee009-c776-416d-938d-a470ba963858

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