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Tackling Humidity with Designer Ionic Liquid-Based Gas Sensing Soft Materials

2022Journal article Open access
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dc.contributor.authorEsteves, C.
dc.contributor.authorPalma, S.I.C.J.
dc.contributor.authorCosta, H.M.A.
dc.contributor.authorAlves, C.
dc.contributor.authorSantos, G.M.C.
dc.contributor.authorRamou, E.
dc.contributor.authorCarvalho, A.L.
dc.contributor.authorDelgado Alves, Vitor
dc.contributor.authorRoque, A.C.A.
dc.date.accessioned2022-02-04T16:17:59Z
dc.date.available2022-02-04T16:17:59Z
dc.date.issued2022
dc.descriptionResearch Articlept_PT
dc.description.abstractRelative humidity is simultaneously a sensing target and a contaminant in gas and volatile organic compound (VOC) sensing systems, where strategies to control humidity interference are required. An unmet challenge is the creation of gas-sensitive materials where the response to humidity is controlled by the material itself. Here, humidity effects are controlled through the design of gelatin formulations in ionic liquids without and with liquid crystals as electrical and optical sensors, respectively. In this design, the anions [DCA]− and [Cl]− of room temperature ionic liquids from the 1-butyl-3-methylimidazolium family tailor the response to humidity and, subsequently, sensing of VOCs in dry and humid conditions. Due to the combined effect of the materials formulations and sensing mechanisms, changing the anion from [DCA]− to the much more hygroscopic [Cl]−, leads to stronger electrical responses and much weaker optical responses to humidity. Thus, either humidity sensors or humidity-tolerant VOC sensors that do not require sample preconditioning or signal processing to correct humidity impact are obtained. With the wide spread of 3D- and 4D-printing and intelligent devices, the monitoring and tuning of humidity in sustainable biobased materials offers excellent opportunities in e-nose sensing arrays and wearable devices compatible with operation at room conditionspt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAdv. Mater. 2022, 2107205pt_PT
dc.identifier.doi10.1002/adma.202107205pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/23391
dc.language.isoengpt_PT
dc.publisherWiley-VCHpt_PT
dc.relationSCENT-ERC-2014-STG-639123, 2015–2022pt_PT
dc.relationApplied Molecular Biosciences Unit
dc.relationApplied Molecular Biosciences Unit
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjecthumiditypt_PT
dc.subjectsensing mechanismspt_PT
dc.titleTackling Humidity with Designer Ionic Liquid-Based Gas Sensing Soft Materialspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleApplied Molecular Biosciences Unit
oaire.awardTitleApplied Molecular Biosciences Unit
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04378%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04378%2F2020/PT
oaire.citation.titleAdvanced Materialspt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameDelgado Alves
person.givenNameVitor
person.identifier1916677
person.identifier.ciencia-id2E1E-6918-4DB3
person.identifier.orcid0000-0002-4117-5582
person.identifier.scopus-author-id24536716000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscovery8d1a8489-8789-4569-89e2-0bade23dd945
relation.isProjectOfPublicationae38cc55-a200-4d0c-8c45-ec3fcb87b03e
relation.isProjectOfPublication5d9bae41-3108-4dac-b589-fbd8b25249a2
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