Halochromic textiles for real-time sensing of hazardous chemicals and personal protection
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/85557 |
Resumo: | Chemical protective clothing (CPC) has become mandatory when performing various tasks to ensure user protection and prevent chemicals from contacting the skin and causing severe injuries. In addition to protection, there is a need to develop a simple mechanism that can be attached to CPC and be capable of detecting and alerting the user to the presence of harmful chemical agents. In this study, a double-sensor strategy was investigated, using six different pH indicators stamped on cotton and polyester knits to detect acidic and alkaline substances, both liquid and gaseous. Functionalized knits underwent microscopic characterization, air permeability and contact angle evaluation. All samples exhibited hydrophobic behavior (contact angle > 90◦ ) and air permeability values above 2400 L/min/cm2/bar, with the best condition demonstrating a contact angle of 123◦ and an air permeability of 2412.5 L/min/cm2/bar when the sensor methyl orange and bromocresol purple (MO:BP) was stamped on polyester. The performed tests proved the functionality of the sensors and showed a visible response of all knits when contacting with different chemicals (acids and bases). Polyester functionalized with MO:BP showed the greatest potential, due to its preeminent color change. Herein, the fiber coating process was optimized, enabling the industrial application of the sensors via a stamping method, an alternative to other time- and resource-consuming techniques. |
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Halochromic textiles for real-time sensing of hazardous chemicals and personal protectionDefense materialsPersonal protectionChemical protective clothing (CPC)Halochromic textilesHazardous chemicalspH indicatorsScience & TechnologyChemical protective clothing (CPC) has become mandatory when performing various tasks to ensure user protection and prevent chemicals from contacting the skin and causing severe injuries. In addition to protection, there is a need to develop a simple mechanism that can be attached to CPC and be capable of detecting and alerting the user to the presence of harmful chemical agents. In this study, a double-sensor strategy was investigated, using six different pH indicators stamped on cotton and polyester knits to detect acidic and alkaline substances, both liquid and gaseous. Functionalized knits underwent microscopic characterization, air permeability and contact angle evaluation. All samples exhibited hydrophobic behavior (contact angle > 90◦ ) and air permeability values above 2400 L/min/cm2/bar, with the best condition demonstrating a contact angle of 123◦ and an air permeability of 2412.5 L/min/cm2/bar when the sensor methyl orange and bromocresol purple (MO:BP) was stamped on polyester. The performed tests proved the functionality of the sensors and showed a visible response of all knits when contacting with different chemicals (acids and bases). Polyester functionalized with MO:BP showed the greatest potential, due to its preeminent color change. Herein, the fiber coating process was optimized, enabling the industrial application of the sensors via a stamping method, an alternative to other time- and resource-consuming techniques.The authors would like to express appreciation for the support of the sponsors of the individual project n° POCI-01-0247-FEDER-045240 entitled “Vestuário de proteção ativa contra agentes químicos e biológicos com base em nanotecnologia”.Multidisciplinary Digital Publishing InstituteUniversidade do MinhoLeite, LilianaPais, Vânia NascimentoSilva, CristinaBoticas, Inês MartinsBessa, JoãoCunha, FernandoRelvas, CátiaFerreira, NoelFangueiro, Raúl2023-04-072023-04-07T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/85557engLeite, L.; Pais, V.; Silva, C.; Boticas, I.; Bessa, J.; Cunha, F.; Relvas, C.; Ferreira, N.; Fangueiro, R. Halochromic Textiles for Real-Time Sensing of Hazardous Chemicals and Personal Protection. Materials 2023, 16, 2938. https://doi.org/10.3390/ma160829381996-194410.3390/ma16082938https://www.mdpi.com/1996-1944/16/8/2938info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-23T01:31:48Zoai:repositorium.sdum.uminho.pt:1822/85557Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:22:09.003749Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Halochromic textiles for real-time sensing of hazardous chemicals and personal protection |
title |
Halochromic textiles for real-time sensing of hazardous chemicals and personal protection |
spellingShingle |
Halochromic textiles for real-time sensing of hazardous chemicals and personal protection Leite, Liliana Defense materials Personal protection Chemical protective clothing (CPC) Halochromic textiles Hazardous chemicals pH indicators Science & Technology |
title_short |
Halochromic textiles for real-time sensing of hazardous chemicals and personal protection |
title_full |
Halochromic textiles for real-time sensing of hazardous chemicals and personal protection |
title_fullStr |
Halochromic textiles for real-time sensing of hazardous chemicals and personal protection |
title_full_unstemmed |
Halochromic textiles for real-time sensing of hazardous chemicals and personal protection |
title_sort |
Halochromic textiles for real-time sensing of hazardous chemicals and personal protection |
author |
Leite, Liliana |
author_facet |
Leite, Liliana Pais, Vânia Nascimento Silva, Cristina Boticas, Inês Martins Bessa, João Cunha, Fernando Relvas, Cátia Ferreira, Noel Fangueiro, Raúl |
author_role |
author |
author2 |
Pais, Vânia Nascimento Silva, Cristina Boticas, Inês Martins Bessa, João Cunha, Fernando Relvas, Cátia Ferreira, Noel Fangueiro, Raúl |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Leite, Liliana Pais, Vânia Nascimento Silva, Cristina Boticas, Inês Martins Bessa, João Cunha, Fernando Relvas, Cátia Ferreira, Noel Fangueiro, Raúl |
dc.subject.por.fl_str_mv |
Defense materials Personal protection Chemical protective clothing (CPC) Halochromic textiles Hazardous chemicals pH indicators Science & Technology |
topic |
Defense materials Personal protection Chemical protective clothing (CPC) Halochromic textiles Hazardous chemicals pH indicators Science & Technology |
description |
Chemical protective clothing (CPC) has become mandatory when performing various tasks to ensure user protection and prevent chemicals from contacting the skin and causing severe injuries. In addition to protection, there is a need to develop a simple mechanism that can be attached to CPC and be capable of detecting and alerting the user to the presence of harmful chemical agents. In this study, a double-sensor strategy was investigated, using six different pH indicators stamped on cotton and polyester knits to detect acidic and alkaline substances, both liquid and gaseous. Functionalized knits underwent microscopic characterization, air permeability and contact angle evaluation. All samples exhibited hydrophobic behavior (contact angle > 90◦ ) and air permeability values above 2400 L/min/cm2/bar, with the best condition demonstrating a contact angle of 123◦ and an air permeability of 2412.5 L/min/cm2/bar when the sensor methyl orange and bromocresol purple (MO:BP) was stamped on polyester. The performed tests proved the functionality of the sensors and showed a visible response of all knits when contacting with different chemicals (acids and bases). Polyester functionalized with MO:BP showed the greatest potential, due to its preeminent color change. Herein, the fiber coating process was optimized, enabling the industrial application of the sensors via a stamping method, an alternative to other time- and resource-consuming techniques. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-04-07 2023-04-07T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/1822/85557 |
url |
https://hdl.handle.net/1822/85557 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Leite, L.; Pais, V.; Silva, C.; Boticas, I.; Bessa, J.; Cunha, F.; Relvas, C.; Ferreira, N.; Fangueiro, R. Halochromic Textiles for Real-Time Sensing of Hazardous Chemicals and Personal Protection. Materials 2023, 16, 2938. https://doi.org/10.3390/ma16082938 1996-1944 10.3390/ma16082938 https://www.mdpi.com/1996-1944/16/8/2938 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799132691104268288 |