A skin-conformal and breathable humidity sensor for emotional mode recognition and non-contact human-machine interface

Abstract Noncontact humidity sensor overcomes the limitations of its contact sensing counterparts, including mechanical wear and cross infection, which becomes a promising candidate in healthcare and human-machine interface application. However, current humidity sensors still suffer the ubiquitous i...

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Main Authors: Tongkuai Li, Tingting Zhao, Hao Zhang, Li Yuan, Congcong Cheng, Junshuai Dai, Longwei Xue, Jixing Zhou, Hai Liu, Luqiao Yin, Jianhua Zhang
Format: Article
Language:English
Published: Nature Portfolio 2024-01-01
Series:npj Flexible Electronics
Online Access:https://doi.org/10.1038/s41528-023-00290-z
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author Tongkuai Li
Tingting Zhao
Hao Zhang
Li Yuan
Congcong Cheng
Junshuai Dai
Longwei Xue
Jixing Zhou
Hai Liu
Luqiao Yin
Jianhua Zhang
author_facet Tongkuai Li
Tingting Zhao
Hao Zhang
Li Yuan
Congcong Cheng
Junshuai Dai
Longwei Xue
Jixing Zhou
Hai Liu
Luqiao Yin
Jianhua Zhang
author_sort Tongkuai Li
collection DOAJ
description Abstract Noncontact humidity sensor overcomes the limitations of its contact sensing counterparts, including mechanical wear and cross infection, which becomes a promising candidate in healthcare and human-machine interface application. However, current humidity sensors still suffer the ubiquitous issue of uncomfortable wear and skin irritation hindering the long-term use. In this study, we report a skin-conformal and breathable humidity sensor assembled by anchoring MXenes-based composite into electrospun elastomer nanofibers coated with a patterned electrode. This composite is highly sensitive to the water molecules due to its large specific surface area and abundant water-absorbing hydroxyl groups, while the elastomeric nanofibers provide an ultrathin, highly flexible, and permeable substrate to support the functional materials and electrodes. This sensor presents not only excellent air permeability (0.078 g cm−2 d−1), high sensitivity (S = 704), and fast response/recovery (0.9 s/0.9 s), but also high skin conformability and biocompatibility. Furthermore, this humidity sensor is confirmed to realize the recognition of motional states and emotional modes, which provides a way for the advanced noncontact human-machine interface.
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spelling doaj.art-a42de9b802ca4b46baf2bf084610b4bf2024-01-07T12:53:37ZengNature Portfolionpj Flexible Electronics2397-46212024-01-01811910.1038/s41528-023-00290-zA skin-conformal and breathable humidity sensor for emotional mode recognition and non-contact human-machine interfaceTongkuai Li0Tingting Zhao1Hao Zhang2Li Yuan3Congcong Cheng4Junshuai Dai5Longwei Xue6Jixing Zhou7Hai Liu8Luqiao Yin9Jianhua Zhang10Key Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai UniversityKey Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai UniversityKey Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai UniversityKey Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai UniversityKey Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai UniversityKey Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai UniversityKey Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai UniversityKey Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai UniversityKey Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai UniversityKey Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai UniversityKey Laboratory of Advanced Display and System Application, Ministry of Education, Shanghai UniversityAbstract Noncontact humidity sensor overcomes the limitations of its contact sensing counterparts, including mechanical wear and cross infection, which becomes a promising candidate in healthcare and human-machine interface application. However, current humidity sensors still suffer the ubiquitous issue of uncomfortable wear and skin irritation hindering the long-term use. In this study, we report a skin-conformal and breathable humidity sensor assembled by anchoring MXenes-based composite into electrospun elastomer nanofibers coated with a patterned electrode. This composite is highly sensitive to the water molecules due to its large specific surface area and abundant water-absorbing hydroxyl groups, while the elastomeric nanofibers provide an ultrathin, highly flexible, and permeable substrate to support the functional materials and electrodes. This sensor presents not only excellent air permeability (0.078 g cm−2 d−1), high sensitivity (S = 704), and fast response/recovery (0.9 s/0.9 s), but also high skin conformability and biocompatibility. Furthermore, this humidity sensor is confirmed to realize the recognition of motional states and emotional modes, which provides a way for the advanced noncontact human-machine interface.https://doi.org/10.1038/s41528-023-00290-z
spellingShingle Tongkuai Li
Tingting Zhao
Hao Zhang
Li Yuan
Congcong Cheng
Junshuai Dai
Longwei Xue
Jixing Zhou
Hai Liu
Luqiao Yin
Jianhua Zhang
A skin-conformal and breathable humidity sensor for emotional mode recognition and non-contact human-machine interface
npj Flexible Electronics
title A skin-conformal and breathable humidity sensor for emotional mode recognition and non-contact human-machine interface
title_full A skin-conformal and breathable humidity sensor for emotional mode recognition and non-contact human-machine interface
title_fullStr A skin-conformal and breathable humidity sensor for emotional mode recognition and non-contact human-machine interface
title_full_unstemmed A skin-conformal and breathable humidity sensor for emotional mode recognition and non-contact human-machine interface
title_short A skin-conformal and breathable humidity sensor for emotional mode recognition and non-contact human-machine interface
title_sort skin conformal and breathable humidity sensor for emotional mode recognition and non contact human machine interface
url https://doi.org/10.1038/s41528-023-00290-z
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