Competitive Bidirectional Response in Bi-Polymeric Mechanochromic Cantilevers Toward Color Imaging-Based VOC Discrimination

The detection of VOCs is essential for environmental monitoring, industrial safety, and medical diagnostics applications. Developing VOC sensors that intrinsically generate multidimensional responses has become especially relevant, as it can significantly reduce reliance on complex multisensor array...

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Detalhes bibliográficos
Autores: Pujol-Vila, Ferran, Casas-Aguilera, Enric, Alvarez, Mar
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/413419
Acesso em linha:http://hdl.handle.net/10261/413419
https://api.elsevier.com/content/abstract/scopus_id/105018506172
Access Level:acceso abierto
Palavra-chave:Bi-polymeric cantilevers
Bidirectional bending
Color imaging
Differential swelling
Mechanochromic sensors
VOC discrimination
VOC sensing
http://metadata.un.org/sdg/9
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
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spelling Competitive Bidirectional Response in Bi-Polymeric Mechanochromic Cantilevers Toward Color Imaging-Based VOC DiscriminationPujol-Vila, FerranCasas-Aguilera, EnricAlvarez, MarBi-polymeric cantileversBidirectional bendingColor imagingDifferential swellingMechanochromic sensorsVOC discriminationVOC sensinghttp://metadata.un.org/sdg/9Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovationThe detection of VOCs is essential for environmental monitoring, industrial safety, and medical diagnostics applications. Developing VOC sensors that intrinsically generate multidimensional responses has become especially relevant, as it can significantly reduce reliance on complex multisensor arrays for effective VOC discrimination. Herein, bi-polymeric mechanochromic cantilevers composed of polydimethylsiloxane (PDMS) and off-stoichiometry thiol-ene-epoxy (OSTE+) intrinsically generate competitive bidirectional response patterns is demonstrated through material-specific interactions with VOCs. Differential swelling between the two polymers induces a competitive bidirectional bending response and corresponding color changes, with three characteristic response modes related to the Hansen solubility parameters (HSPs) of the VOCs: OSTE+-driven bending for VOCs with low dispersion and moderate-to-high hydrogen-bonding and polarity parameters, PDMS-mediated bending for those with moderate-to-high dispersion and low-to-moderate hydrogen-bonding and polarity, and mixed bending for VOCs with intermediate HSPs. By leveraging these combined swelling dynamics, the bi-polymeric mechanochromic cantilevers enable solubility-reporting, sensitive, color-imaging-based VOC detection using a single sensor type and detection mode.The authors acknowledge the financial support from grant TED2021-132486B-I00 funded by MCIN/AEI /10.13039/501100011033 and by Eu-ropean Union NextGenerationEU/ PRTR. The IMB-CNM is supported by grant CEX2023-001397-M funded by MCIN/AEI /10.13039/501100011033. This work has made use of the Spanish ICTS Network MICRONANOFABS partially supported by MCIN.Peer reviewedWiley-VCHMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)European CommissionPujol-Vila, Ferran [0000-0002-6811-2426]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/413419https://api.elsevier.com/content/abstract/scopus_id/105018506172reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MCIN/TED2021- 132486B-I00/info:eu-repo/grantAgreement/AEI/CEX2023-001397-M/The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1002/adom.202502088https://doi.org/10.1002/adom.202502088Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4134192026-05-22T06:33:51Z
dc.title.none.fl_str_mv Competitive Bidirectional Response in Bi-Polymeric Mechanochromic Cantilevers Toward Color Imaging-Based VOC Discrimination
title Competitive Bidirectional Response in Bi-Polymeric Mechanochromic Cantilevers Toward Color Imaging-Based VOC Discrimination
spellingShingle Competitive Bidirectional Response in Bi-Polymeric Mechanochromic Cantilevers Toward Color Imaging-Based VOC Discrimination
Pujol-Vila, Ferran
Bi-polymeric cantilevers
Bidirectional bending
Color imaging
Differential swelling
Mechanochromic sensors
VOC discrimination
VOC sensing
http://metadata.un.org/sdg/9
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
title_short Competitive Bidirectional Response in Bi-Polymeric Mechanochromic Cantilevers Toward Color Imaging-Based VOC Discrimination
title_full Competitive Bidirectional Response in Bi-Polymeric Mechanochromic Cantilevers Toward Color Imaging-Based VOC Discrimination
title_fullStr Competitive Bidirectional Response in Bi-Polymeric Mechanochromic Cantilevers Toward Color Imaging-Based VOC Discrimination
title_full_unstemmed Competitive Bidirectional Response in Bi-Polymeric Mechanochromic Cantilevers Toward Color Imaging-Based VOC Discrimination
title_sort Competitive Bidirectional Response in Bi-Polymeric Mechanochromic Cantilevers Toward Color Imaging-Based VOC Discrimination
dc.creator.none.fl_str_mv Pujol-Vila, Ferran
Casas-Aguilera, Enric
Alvarez, Mar
author Pujol-Vila, Ferran
author_facet Pujol-Vila, Ferran
Casas-Aguilera, Enric
Alvarez, Mar
author_role author
author2 Casas-Aguilera, Enric
Alvarez, Mar
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
European Commission
Pujol-Vila, Ferran [0000-0002-6811-2426]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Bi-polymeric cantilevers
Bidirectional bending
Color imaging
Differential swelling
Mechanochromic sensors
VOC discrimination
VOC sensing
http://metadata.un.org/sdg/9
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
topic Bi-polymeric cantilevers
Bidirectional bending
Color imaging
Differential swelling
Mechanochromic sensors
VOC discrimination
VOC sensing
http://metadata.un.org/sdg/9
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
description The detection of VOCs is essential for environmental monitoring, industrial safety, and medical diagnostics applications. Developing VOC sensors that intrinsically generate multidimensional responses has become especially relevant, as it can significantly reduce reliance on complex multisensor arrays for effective VOC discrimination. Herein, bi-polymeric mechanochromic cantilevers composed of polydimethylsiloxane (PDMS) and off-stoichiometry thiol-ene-epoxy (OSTE+) intrinsically generate competitive bidirectional response patterns is demonstrated through material-specific interactions with VOCs. Differential swelling between the two polymers induces a competitive bidirectional bending response and corresponding color changes, with three characteristic response modes related to the Hansen solubility parameters (HSPs) of the VOCs: OSTE+-driven bending for VOCs with low dispersion and moderate-to-high hydrogen-bonding and polarity parameters, PDMS-mediated bending for those with moderate-to-high dispersion and low-to-moderate hydrogen-bonding and polarity, and mixed bending for VOCs with intermediate HSPs. By leveraging these combined swelling dynamics, the bi-polymeric mechanochromic cantilevers enable solubility-reporting, sensitive, color-imaging-based VOC detection using a single sensor type and detection mode.
publishDate 2025
dc.date.none.fl_str_mv 2025
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/413419
https://api.elsevier.com/content/abstract/scopus_id/105018506172
url http://hdl.handle.net/10261/413419
https://api.elsevier.com/content/abstract/scopus_id/105018506172
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MCIN/TED2021- 132486B-I00/
info:eu-repo/grantAgreement/AEI/CEX2023-001397-M/
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1002/adom.202502088
https://doi.org/10.1002/adom.202502088

dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.publisher.none.fl_str_mv Wiley-VCH
publisher.none.fl_str_mv Wiley-VCH
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
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