Stretchable anisotropic piezoelectric sensors with modulus engineering for monitoring multiaxial joint motion
Real-time tracking of human joint motion is crucial for gesture and posture monitoring, requiring wearable sensors capable of detecting anisotropic signals through form-changing capabilities. Herein, we introduce an anisotropic piezoelectric sensor (APS) developed via modulus engineering of stretcha...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525005404 |
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| author | Asad Nauman Jun-Chan Choi Jae-Won Lee Young-Min Cho Min-Seok Kim Bilal ud din Khan Dong Yeol Hyeon HakSu Jang Kwi-Il Park Hak-Rin Kim |
| author_facet | Asad Nauman Jun-Chan Choi Jae-Won Lee Young-Min Cho Min-Seok Kim Bilal ud din Khan Dong Yeol Hyeon HakSu Jang Kwi-Il Park Hak-Rin Kim |
| author_sort | Asad Nauman |
| collection | DOAJ |
| description | Real-time tracking of human joint motion is crucial for gesture and posture monitoring, requiring wearable sensors capable of detecting anisotropic signals through form-changing capabilities. Herein, we introduce an anisotropic piezoelectric sensor (APS) developed via modulus engineering of stretchable heterogeneous materials. The APS integrates high-modulus active-line patterns with a low-modulus inactive matrix, utilizing Poisson’s effect to generate directional anisotropic outputs based on strain variations in active regions. Single-electrode APS devices exhibited varied signal polarities in response to bending directions induced by joint movements, thereby enhancing sensing diversity. Remarkably, these devices demonstrated up to a 21-fold variation in output for identical strain across different tensile axis, indicating excellent anisotropic sensitivity. Additionally, an orthogonally stacked APS (s-APS) enabled the detection of eight distinct motion types with a single device, providing consistent feedback during joint deformation and highlighting its potential as a versatile wearable sensor for gesture and posture monitoring across diverse applications. |
| format | Article |
| id | doaj-art-e0e499b000814c6e94853aea1ef466b9 |
| institution | DOAJ |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-e0e499b000814c6e94853aea1ef466b92025-08-20T03:11:25ZengElsevierMaterials & Design0264-12752025-06-0125411412010.1016/j.matdes.2025.114120Stretchable anisotropic piezoelectric sensors with modulus engineering for monitoring multiaxial joint motionAsad Nauman0Jun-Chan Choi1Jae-Won Lee2Young-Min Cho3Min-Seok Kim4Bilal ud din Khan5Dong Yeol Hyeon6HakSu Jang7Kwi-Il Park8Hak-Rin Kim9School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USASchool of Electrical Engineering, Korea University, Seoul 02841, Republic of KoreaSchool of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of KoreaSchool of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of KoreaSchool of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of KoreaSchool of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of KoreaDepartment of Materials Science and Metallurgical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; Innovative Semiconductor Education and Research Center for Future Mobility, Kyungpook National University, Daegu 41566, Republic of KoreaDepartment of Materials Science and Metallurgical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; Innovative Semiconductor Education and Research Center for Future Mobility, Kyungpook National University, Daegu 41566, Republic of KoreaDepartment of Materials Science and Metallurgical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; Innovative Semiconductor Education and Research Center for Future Mobility, Kyungpook National University, Daegu 41566, Republic of KoreaSchool of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; School of Electronics Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; Corresponding author at: School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.Real-time tracking of human joint motion is crucial for gesture and posture monitoring, requiring wearable sensors capable of detecting anisotropic signals through form-changing capabilities. Herein, we introduce an anisotropic piezoelectric sensor (APS) developed via modulus engineering of stretchable heterogeneous materials. The APS integrates high-modulus active-line patterns with a low-modulus inactive matrix, utilizing Poisson’s effect to generate directional anisotropic outputs based on strain variations in active regions. Single-electrode APS devices exhibited varied signal polarities in response to bending directions induced by joint movements, thereby enhancing sensing diversity. Remarkably, these devices demonstrated up to a 21-fold variation in output for identical strain across different tensile axis, indicating excellent anisotropic sensitivity. Additionally, an orthogonally stacked APS (s-APS) enabled the detection of eight distinct motion types with a single device, providing consistent feedback during joint deformation and highlighting its potential as a versatile wearable sensor for gesture and posture monitoring across diverse applications.http://www.sciencedirect.com/science/article/pii/S0264127525005404Anisotropic piezoelectric sensorModulus engineeringMultiaxial sensitivityJoint motion monitoring |
| spellingShingle | Asad Nauman Jun-Chan Choi Jae-Won Lee Young-Min Cho Min-Seok Kim Bilal ud din Khan Dong Yeol Hyeon HakSu Jang Kwi-Il Park Hak-Rin Kim Stretchable anisotropic piezoelectric sensors with modulus engineering for monitoring multiaxial joint motion Materials & Design Anisotropic piezoelectric sensor Modulus engineering Multiaxial sensitivity Joint motion monitoring |
| title | Stretchable anisotropic piezoelectric sensors with modulus engineering for monitoring multiaxial joint motion |
| title_full | Stretchable anisotropic piezoelectric sensors with modulus engineering for monitoring multiaxial joint motion |
| title_fullStr | Stretchable anisotropic piezoelectric sensors with modulus engineering for monitoring multiaxial joint motion |
| title_full_unstemmed | Stretchable anisotropic piezoelectric sensors with modulus engineering for monitoring multiaxial joint motion |
| title_short | Stretchable anisotropic piezoelectric sensors with modulus engineering for monitoring multiaxial joint motion |
| title_sort | stretchable anisotropic piezoelectric sensors with modulus engineering for monitoring multiaxial joint motion |
| topic | Anisotropic piezoelectric sensor Modulus engineering Multiaxial sensitivity Joint motion monitoring |
| url | http://www.sciencedirect.com/science/article/pii/S0264127525005404 |
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