Flexible Strain-Sensitive Silicone-CNT Sensor for Human Motion Detection
This article describes the manufacturing technology of biocompatible flexible strain-sensitive sensor based on Ecoflex silicone and multi-walled carbon nanotubes (MWCNT). The sensor demonstrates resistive behavior. Structural, electrical, and mechanical characteristics are compared. It is shown that...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Bioengineering |
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| Online Access: | https://www.mdpi.com/2306-5354/9/1/36 |
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| author | Natalia A. Demidenko Artem V. Kuksin Victoria V. Molodykh Evgeny S. Pyankov Levan P. Ichkitidze Victoria A. Zaborova Alexandr A. Tsymbal Svetlana A. Tkachenko Hassan Shafaei Ekaterina Diachkova Alexander Yu. Gerasimenko |
| author_facet | Natalia A. Demidenko Artem V. Kuksin Victoria V. Molodykh Evgeny S. Pyankov Levan P. Ichkitidze Victoria A. Zaborova Alexandr A. Tsymbal Svetlana A. Tkachenko Hassan Shafaei Ekaterina Diachkova Alexander Yu. Gerasimenko |
| author_sort | Natalia A. Demidenko |
| collection | DOAJ |
| description | This article describes the manufacturing technology of biocompatible flexible strain-sensitive sensor based on Ecoflex silicone and multi-walled carbon nanotubes (MWCNT). The sensor demonstrates resistive behavior. Structural, electrical, and mechanical characteristics are compared. It is shown that laser radiation significantly reduces the resistance of the material. Through laser radiation, electrically conductive networks of MWCNT are formed in a silicone matrix. The developed sensor demonstrates highly sensitive characteristics: gauge factor at 100% elongation −4.9, gauge factor at 90° bending −0.9%/deg, stretchability up to 725%, tensile strength 0.7 MPa, modulus of elasticity at 100% 46 kPa, and the temperature coefficient of resistance in the range of 30–40 °C is −2 × 10<sup>−3</sup>. There is a linear sensor response (with 1 ms response time) with a low hysteresis of ≤3%. An electronic unit for reading and processing sensor signals based on the ATXMEGA8E5-AU microcontroller has been developed. The unit was set to operate the sensor in the range of electrical resistance 5–150 kOhm. The Bluetooth module made it possible to transfer the received data to a personal computer. Currently, in the field of wearable technologies and health monitoring, a vital need is the development of flexible sensors attached to the human body to track various indicators. By integrating the sensor with the joints of the human hand, effective movement sensing has been demonstrated. |
| first_indexed | 2024-03-10T01:54:44Z |
| format | Article |
| id | doaj.art-226a1bcd1a8b417ca00bcafb5fd7bff1 |
| institution | Directory Open Access Journal |
| issn | 2306-5354 |
| language | English |
| last_indexed | 2024-03-10T01:54:44Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Bioengineering |
| spelling | doaj.art-226a1bcd1a8b417ca00bcafb5fd7bff12023-11-23T12:59:25ZengMDPI AGBioengineering2306-53542022-01-01913610.3390/bioengineering9010036Flexible Strain-Sensitive Silicone-CNT Sensor for Human Motion DetectionNatalia A. Demidenko0Artem V. Kuksin1Victoria V. Molodykh2Evgeny S. Pyankov3Levan P. Ichkitidze4Victoria A. Zaborova5Alexandr A. Tsymbal6Svetlana A. Tkachenko7Hassan Shafaei8Ekaterina Diachkova9Alexander Yu. Gerasimenko10Institute of Biomedical Systems, National Research University of Electronic Technology, 124498 Moscow, RussiaInstitute of Biomedical Systems, National Research University of Electronic Technology, 124498 Moscow, RussiaInstitute of Biomedical Systems, National Research University of Electronic Technology, 124498 Moscow, RussiaInstitute of Biomedical Systems, National Research University of Electronic Technology, 124498 Moscow, RussiaInstitute of Biomedical Systems, National Research University of Electronic Technology, 124498 Moscow, RussiaInstitute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, RussiaDepartment of Pathophysiology, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, RussiaDepartment of Physical Rehabilitation Massage and Health-Improving Physical Culture, Russian State University of Physical Education, Sport, Youth and Tourism (SCOLIPE), 105122 Moscow, RussiaDepartment of Physical Rehabilitation Massage and Health-Improving Physical Culture, Russian State University of Physical Education, Sport, Youth and Tourism (SCOLIPE), 105122 Moscow, RussiaDepartment of Oral Surgery, Borovskiy Institute of Dentistry, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, RussiaInstitute of Biomedical Systems, National Research University of Electronic Technology, 124498 Moscow, RussiaThis article describes the manufacturing technology of biocompatible flexible strain-sensitive sensor based on Ecoflex silicone and multi-walled carbon nanotubes (MWCNT). The sensor demonstrates resistive behavior. Structural, electrical, and mechanical characteristics are compared. It is shown that laser radiation significantly reduces the resistance of the material. Through laser radiation, electrically conductive networks of MWCNT are formed in a silicone matrix. The developed sensor demonstrates highly sensitive characteristics: gauge factor at 100% elongation −4.9, gauge factor at 90° bending −0.9%/deg, stretchability up to 725%, tensile strength 0.7 MPa, modulus of elasticity at 100% 46 kPa, and the temperature coefficient of resistance in the range of 30–40 °C is −2 × 10<sup>−3</sup>. There is a linear sensor response (with 1 ms response time) with a low hysteresis of ≤3%. An electronic unit for reading and processing sensor signals based on the ATXMEGA8E5-AU microcontroller has been developed. The unit was set to operate the sensor in the range of electrical resistance 5–150 kOhm. The Bluetooth module made it possible to transfer the received data to a personal computer. Currently, in the field of wearable technologies and health monitoring, a vital need is the development of flexible sensors attached to the human body to track various indicators. By integrating the sensor with the joints of the human hand, effective movement sensing has been demonstrated.https://www.mdpi.com/2306-5354/9/1/36nanocompositesstrain sensorscarbon nanotubeslaser radiationCNT networksflexible bioelectronics |
| spellingShingle | Natalia A. Demidenko Artem V. Kuksin Victoria V. Molodykh Evgeny S. Pyankov Levan P. Ichkitidze Victoria A. Zaborova Alexandr A. Tsymbal Svetlana A. Tkachenko Hassan Shafaei Ekaterina Diachkova Alexander Yu. Gerasimenko Flexible Strain-Sensitive Silicone-CNT Sensor for Human Motion Detection Bioengineering nanocomposites strain sensors carbon nanotubes laser radiation CNT networks flexible bioelectronics |
| title | Flexible Strain-Sensitive Silicone-CNT Sensor for Human Motion Detection |
| title_full | Flexible Strain-Sensitive Silicone-CNT Sensor for Human Motion Detection |
| title_fullStr | Flexible Strain-Sensitive Silicone-CNT Sensor for Human Motion Detection |
| title_full_unstemmed | Flexible Strain-Sensitive Silicone-CNT Sensor for Human Motion Detection |
| title_short | Flexible Strain-Sensitive Silicone-CNT Sensor for Human Motion Detection |
| title_sort | flexible strain sensitive silicone cnt sensor for human motion detection |
| topic | nanocomposites strain sensors carbon nanotubes laser radiation CNT networks flexible bioelectronics |
| url | https://www.mdpi.com/2306-5354/9/1/36 |
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