Unencapsulated and washable two-dimensional material electronic-textile for NO2 sensing in ambient air.

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cam.depositDate2022-07-13
cam.issuedOnline2022-07-19
cam.orpheus.successWed Aug 03 09:46:03 BST 2022 - This item is covered by RRS with an embargo. The item is now published and embargo has been lifted.
datacite.issupplementedby.urlhttps://doi.org/10.17863/CAM.85441
dc.contributor.authorOluwasanya, Pelumi W
dc.contributor.authorCarey, Tian
dc.contributor.authorSamad, Yarjan Abdul
dc.contributor.authorOcchipinti, Luigi G
dc.contributor.orcidOcchipinti, Luigi [0000-0002-9067-2534]
dc.date.accessioned2022-07-14T23:30:22Z
dc.date.available2022-07-14T23:30:22Z
dc.date.issued2022-07-19
dc.date.updated2022-07-13T08:54:53Z
dc.description.abstractMaterials adopted in electronic gas sensors, such as chemiresistive-based NO2 sensors, for integration in clothing fail to survive standard wash cycles due to the combined effect of aggressive chemicals in washing liquids and mechanical abrasion. Device failure can be mitigated by using encapsulation materials, which, however, reduces the sensor performance in terms of sensitivity, selectivity, and therefore utility. A highly sensitive NO2 electronic textile (e-textile) sensor was fabricated on Nylon fabric, which is resistant to standard washing cycles, by coating Graphene Oxide (GO), and GO/Molybdenum disulfide (GO/MoS2) and carrying out in situ reduction of the GO to Reduced Graphene Oxide (RGO). The GO/MoS2 e-textile was selective to NO2 and showed sensitivity to 20 ppb NO2 in dry air (0.05%/ppb) and 100 ppb NO2 in humid air (60% RH) with a limit of detection (LOD) of ~ 7.3 ppb. The selectivity and low LOD is achieved with the sensor operating at ambient temperatures (~ 20 °C). The sensor maintained its functionality after undergoing 100 cycles of standardised washing with no encapsulation. The relationship between temperature, humidity and sensor response was investigated. The e-textile sensor was embedded with a microcontroller system, enabling wireless transmission of the measurement data to a mobile phone. These results show the potential for integrating air quality sensors on washable clothing for high spatial resolution (< 25 cm2)-on-body personal exposure monitoring.
dc.identifier.doi10.17863/CAM.86530
dc.identifier.eissn2045-2322
dc.identifier.issn2045-2322
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/339120
dc.publisherNature Publishing Group
dc.publisher.departmentDepartment of Engineering
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject34 Chemical Sciences
dc.subject40 Engineering
dc.subject46 Information and Computing Sciences
dc.subject4009 Electronics, Sensors and Digital Hardware
dc.subject4605 Data Management and Data Science
dc.subject4016 Materials Engineering
dc.titleUnencapsulated and washable two-dimensional material electronic-textile for NO2 sensing in ambient air.
dc.typeArticle
dcterms.dateAccepted2022-07-12
prism.publicationNameSci Rep
pubs.funder-project-idEuropean Commission Horizon 2020 (H2020) Research Infrastructures (RI) (685758)
pubs.funder-project-idTechnology Strategy Board (103543)
pubs.funder-project-idEuropean Commission Horizon 2020 (H2020) Future and Emerging Technologies (FET) (881603)
pubs.licence-display-nameApollo Repository Deposit Licence Agreement
pubs.licence-identifierapollo-deposit-licence-2-1
rioxxterms.typeJournal Article/Review
rioxxterms.versionAM
rioxxterms.versionofrecord10.1038/s41598-022-16617-1
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