Hierarchically Microstructure-Bioinspired Flexible Piezoresistive Bioelectronics

The naturally microstructure-bioinspired piezoresistive sensor for human–machine interaction and human health monitoring represents an attractive opportunity for wearable bioelectronics. However, due to the trade-off between sensitivity and linear detection range, obtaining piezoresistive sensors wi...

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Published in:	ACS nano Vol. 15; no. 7; pp. 11555 - 11563
Main Authors:	Yang, Tao, Deng, Weili, Chu, Xiang, Wang, Xiao, Hu, Yeting, Fan, Xi, Song, Jia, Gao, Yuyu, Zhang, Binbin, Tian, Guo, Xiong, Da, Zhong, Shen, Tang, Lihua, Hu, Yonghe, Yang, Weiqing
Format:	Journal Article
Language:	English
Published:	United States American Chemical Society 27.07.2021
Subjects:	Humans Movement Nanofibers - chemistry Skin Wearable Electronic Devices flexible piezoresistive sensor PVDF/ PANI core-shell nanofibers human health monitoring bioinspired micostructure hierarchical structure
ISSN:	1936-0851, 1936-086X, 1936-086X
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Abstract	The naturally microstructure-bioinspired piezoresistive sensor for human–machine interaction and human health monitoring represents an attractive opportunity for wearable bioelectronics. However, due to the trade-off between sensitivity and linear detection range, obtaining piezoresistive sensors with both a wide pressure monitoring range and a high sensitivity is still a great challenge. Herein, we design a hierarchically microstructure-bioinspired flexible piezoresistive sensor consisting of a hierarchical polyaniline/polyvinylidene fluoride nanofiber (HPPNF) film sandwiched between two interlocking electrodes with microdome structure. Ascribed to the substantially enlarged 3D deformation rates, these bioelectronics exhibit an ultrahigh sensitivity of 53 kPa–1, a pressure detection range from 58.4 to 960 Pa, a fast response time of 38 ms, and excellent cycle stability over 50 000 cycles. Furthermore, this conformally skin-adhered sensor successfully demonstrates the monitoring of human physiological signals and movement states, such as wrist pulse, throat activity, spinal posture, and gait recognition. Evidently, this hierarchically microstructure-bioinspired and amplified sensitivity piezoresistive sensor provides a promising strategy for the rapid development of next-generation wearable bioelectronics.
AbstractList	The naturally microstructure-bioinspired piezoresistive sensor for human-machine interaction and human health monitoring represents an attractive opportunity for wearable bioelectronics. However, due to the trade-off between sensitivity and linear detection range, obtaining piezoresistive sensors with both a wide pressure monitoring range and a high sensitivity is still a great challenge. Herein, we design a hierarchically microstructure-bioinspired flexible piezoresistive sensor consisting of a hierarchical polyaniline/polyvinylidene fluoride nanofiber (HPPNF) film sandwiched between two interlocking electrodes with microdome structure. Ascribed to the substantially enlarged 3D deformation rates, these bioelectronics exhibit an ultrahigh sensitivity of 53 kPa , a pressure detection range from 58.4 to 960 Pa, a fast response time of 38 ms, and excellent cycle stability over 50 000 cycles. Furthermore, this conformally skin-adhered sensor successfully demonstrates the monitoring of human physiological signals and movement states, such as wrist pulse, throat activity, spinal posture, and gait recognition. Evidently, this hierarchically microstructure-bioinspired and amplified sensitivity piezoresistive sensor provides a promising strategy for the rapid development of next-generation wearable bioelectronics. The naturally microstructure-bioinspired piezoresistive sensor for human-machine interaction and human health monitoring represents an attractive opportunity for wearable bioelectronics. However, due to the trade-off between sensitivity and linear detection range, obtaining piezoresistive sensors with both a wide pressure monitoring range and a high sensitivity is still a great challenge. Herein, we design a hierarchically microstructure-bioinspired flexible piezoresistive sensor consisting of a hierarchical polyaniline/polyvinylidene fluoride nanofiber (HPPNF) film sandwiched between two interlocking electrodes with microdome structure. Ascribed to the substantially enlarged 3D deformation rates, these bioelectronics exhibit an ultrahigh sensitivity of 53 kPa-1, a pressure detection range from 58.4 to 960 Pa, a fast response time of 38 ms, and excellent cycle stability over 50 000 cycles. Furthermore, this conformally skin-adhered sensor successfully demonstrates the monitoring of human physiological signals and movement states, such as wrist pulse, throat activity, spinal posture, and gait recognition. Evidently, this hierarchically microstructure-bioinspired and amplified sensitivity piezoresistive sensor provides a promising strategy for the rapid development of next-generation wearable bioelectronics.The naturally microstructure-bioinspired piezoresistive sensor for human-machine interaction and human health monitoring represents an attractive opportunity for wearable bioelectronics. However, due to the trade-off between sensitivity and linear detection range, obtaining piezoresistive sensors with both a wide pressure monitoring range and a high sensitivity is still a great challenge. Herein, we design a hierarchically microstructure-bioinspired flexible piezoresistive sensor consisting of a hierarchical polyaniline/polyvinylidene fluoride nanofiber (HPPNF) film sandwiched between two interlocking electrodes with microdome structure. Ascribed to the substantially enlarged 3D deformation rates, these bioelectronics exhibit an ultrahigh sensitivity of 53 kPa-1, a pressure detection range from 58.4 to 960 Pa, a fast response time of 38 ms, and excellent cycle stability over 50 000 cycles. Furthermore, this conformally skin-adhered sensor successfully demonstrates the monitoring of human physiological signals and movement states, such as wrist pulse, throat activity, spinal posture, and gait recognition. Evidently, this hierarchically microstructure-bioinspired and amplified sensitivity piezoresistive sensor provides a promising strategy for the rapid development of next-generation wearable bioelectronics. The naturally microstructure-bioinspired piezoresistive sensor for human–machine interaction and human health monitoring represents an attractive opportunity for wearable bioelectronics. However, due to the trade-off between sensitivity and linear detection range, obtaining piezoresistive sensors with both a wide pressure monitoring range and a high sensitivity is still a great challenge. Herein, we design a hierarchically microstructure-bioinspired flexible piezoresistive sensor consisting of a hierarchical polyaniline/polyvinylidene fluoride nanofiber (HPPNF) film sandwiched between two interlocking electrodes with microdome structure. Ascribed to the substantially enlarged 3D deformation rates, these bioelectronics exhibit an ultrahigh sensitivity of 53 kPa–1, a pressure detection range from 58.4 to 960 Pa, a fast response time of 38 ms, and excellent cycle stability over 50 000 cycles. Furthermore, this conformally skin-adhered sensor successfully demonstrates the monitoring of human physiological signals and movement states, such as wrist pulse, throat activity, spinal posture, and gait recognition. Evidently, this hierarchically microstructure-bioinspired and amplified sensitivity piezoresistive sensor provides a promising strategy for the rapid development of next-generation wearable bioelectronics.
Author	Chu, Xiang Xiong, Da Gao, Yuyu Yang, Tao Fan, Xi Song, Jia Zhong, Shen Deng, Weili Zhang, Binbin Tang, Lihua Hu, Yeting Hu, Yonghe Tian, Guo Yang, Weiqing Wang, Xiao
AuthorAffiliation	Department of Pharmacy Department of Mechanical Engineering Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering State Key Laboratory of Traction Power Southwest Jiaotong University
AuthorAffiliation_xml	– name: State Key Laboratory of Traction Power – name: Department of Pharmacy – name: Department of Mechanical Engineering – name: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – name: Southwest Jiaotong University
Author_xml	– sequence: 1 givenname: Tao surname: Yang fullname: Yang, Tao organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 2 givenname: Weili orcidid: 0000-0003-1427-534X surname: Deng fullname: Deng, Weili email: weili1812@swjtu.edu.cn organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 3 givenname: Xiang surname: Chu fullname: Chu, Xiang organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 4 givenname: Xiao surname: Wang fullname: Wang, Xiao organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 5 givenname: Yeting surname: Hu fullname: Hu, Yeting organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 6 givenname: Xi surname: Fan fullname: Fan, Xi organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 7 givenname: Jia surname: Song fullname: Song, Jia organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 8 givenname: Yuyu surname: Gao fullname: Gao, Yuyu organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 9 givenname: Binbin surname: Zhang fullname: Zhang, Binbin organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 10 givenname: Guo surname: Tian fullname: Tian, Guo organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 11 givenname: Da surname: Xiong fullname: Xiong, Da organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 12 givenname: Shen surname: Zhong fullname: Zhong, Shen organization: Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering – sequence: 13 givenname: Lihua surname: Tang fullname: Tang, Lihua organization: Department of Mechanical Engineering – sequence: 14 givenname: Yonghe surname: Hu fullname: Hu, Yonghe email: huyonghezyy@163.com organization: Department of Pharmacy – sequence: 15 givenname: Weiqing orcidid: 0000-0001-8828-9862 surname: Yang fullname: Yang, Weiqing email: wqyang@swjtu.edu.cn organization: Southwest Jiaotong University
BackLink	https://www.ncbi.nlm.nih.gov/pubmed/34128640$$D View this record in MEDLINE/PubMed
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Keywords	flexible piezoresistive sensor PVDF/ PANI core-shell nanofibers human health monitoring bioinspired micostructure hierarchical structure
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Snippet	The naturally microstructure-bioinspired piezoresistive sensor for human–machine interaction and human health monitoring represents an attractive opportunity... The naturally microstructure-bioinspired piezoresistive sensor for human-machine interaction and human health monitoring represents an attractive opportunity...
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SubjectTerms	Humans Movement Nanofibers - chemistry Skin Wearable Electronic Devices
Title	Hierarchically Microstructure-Bioinspired Flexible Piezoresistive Bioelectronics
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