Wearable Pressure Sensor Using Porous Natural Polymer Hydrogel Elastomers with High Sensitivity over a Wide Sensing Range
Wearable pressure sensors capable of quantifying full-range human dynamic motionare are pivotal in wearable electronics and human activity monitoring. Since wearable pressure sensors directly or indirectly contact skin, selecting flexible soft and skin-friendly materials is important. Wearable press...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-06-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/15/12/2736 |
| _version_ | 1797592928573456384 |
|---|---|
| author | Fan Xiao Shunyu Jin Wan Zhang Yingxin Zhang Hang Zhou Yuan Huang |
| author_facet | Fan Xiao Shunyu Jin Wan Zhang Yingxin Zhang Hang Zhou Yuan Huang |
| author_sort | Fan Xiao |
| collection | DOAJ |
| description | Wearable pressure sensors capable of quantifying full-range human dynamic motionare are pivotal in wearable electronics and human activity monitoring. Since wearable pressure sensors directly or indirectly contact skin, selecting flexible soft and skin-friendly materials is important. Wearable pressure sensors with natural polymer-based hydrogels are extensively explored to enable safe contact with skin. Despite recent advances, most natural polymer-based hydrogel sensors suffer from low sensitivity at high-pressure ranges. Here, by using commercially available rosin particles as sacrificial templates, a cost-effective wide-range porous locust bean gum-based hydrogel pressure sensor is constructed. Due to the three-dimensional macroporous structure of the hydrogel, the constructed sensor exhibits high sensitivities (12.7, 5.0, and 3.2 kPa<sup>−1</sup> under 0.1–20, 20–50, and 50–100 kPa) under a wide range of pressure. The sensor also offers a fast response time (263 ms) and good durability over 500 loading/unloading cycles. In addition, the sensor is successfully applied for monitoring human dynamic motion. This work provides a low-cost and easy fabrication strategy for fabricating high-performance natural polymer-based hydrogel piezoresistive sensors with a wide response range and high sensitivity. |
| first_indexed | 2024-03-11T02:01:11Z |
| format | Article |
| id | doaj.art-90b8618131114a589fa2cf593aecb12a |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T02:01:11Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-90b8618131114a589fa2cf593aecb12a2023-11-18T12:14:01ZengMDPI AGPolymers2073-43602023-06-011512273610.3390/polym15122736Wearable Pressure Sensor Using Porous Natural Polymer Hydrogel Elastomers with High Sensitivity over a Wide Sensing RangeFan Xiao0Shunyu Jin1Wan Zhang2Yingxin Zhang3Hang Zhou4Yuan Huang5School of Microelectronics Science and Technology, Sun Yat-Sen University, Guangzhou 510275, ChinaHefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, ChinaSchool of Microelectronics Science and Technology, Sun Yat-Sen University, Guangzhou 510275, ChinaSchool of Microelectronics Science and Technology, Sun Yat-Sen University, Guangzhou 510275, ChinaSchool of Electronic and Computer Engineering, Peking University Shenzhen Graduate School, Shenzhen 518055, ChinaSchool of Microelectronics Science and Technology, Sun Yat-Sen University, Guangzhou 510275, ChinaWearable pressure sensors capable of quantifying full-range human dynamic motionare are pivotal in wearable electronics and human activity monitoring. Since wearable pressure sensors directly or indirectly contact skin, selecting flexible soft and skin-friendly materials is important. Wearable pressure sensors with natural polymer-based hydrogels are extensively explored to enable safe contact with skin. Despite recent advances, most natural polymer-based hydrogel sensors suffer from low sensitivity at high-pressure ranges. Here, by using commercially available rosin particles as sacrificial templates, a cost-effective wide-range porous locust bean gum-based hydrogel pressure sensor is constructed. Due to the three-dimensional macroporous structure of the hydrogel, the constructed sensor exhibits high sensitivities (12.7, 5.0, and 3.2 kPa<sup>−1</sup> under 0.1–20, 20–50, and 50–100 kPa) under a wide range of pressure. The sensor also offers a fast response time (263 ms) and good durability over 500 loading/unloading cycles. In addition, the sensor is successfully applied for monitoring human dynamic motion. This work provides a low-cost and easy fabrication strategy for fabricating high-performance natural polymer-based hydrogel piezoresistive sensors with a wide response range and high sensitivity.https://www.mdpi.com/2073-4360/15/12/2736pressure sensorporous hydrogelsnatural polymer |
| spellingShingle | Fan Xiao Shunyu Jin Wan Zhang Yingxin Zhang Hang Zhou Yuan Huang Wearable Pressure Sensor Using Porous Natural Polymer Hydrogel Elastomers with High Sensitivity over a Wide Sensing Range Polymers pressure sensor porous hydrogels natural polymer |
| title | Wearable Pressure Sensor Using Porous Natural Polymer Hydrogel Elastomers with High Sensitivity over a Wide Sensing Range |
| title_full | Wearable Pressure Sensor Using Porous Natural Polymer Hydrogel Elastomers with High Sensitivity over a Wide Sensing Range |
| title_fullStr | Wearable Pressure Sensor Using Porous Natural Polymer Hydrogel Elastomers with High Sensitivity over a Wide Sensing Range |
| title_full_unstemmed | Wearable Pressure Sensor Using Porous Natural Polymer Hydrogel Elastomers with High Sensitivity over a Wide Sensing Range |
| title_short | Wearable Pressure Sensor Using Porous Natural Polymer Hydrogel Elastomers with High Sensitivity over a Wide Sensing Range |
| title_sort | wearable pressure sensor using porous natural polymer hydrogel elastomers with high sensitivity over a wide sensing range |
| topic | pressure sensor porous hydrogels natural polymer |
| url | https://www.mdpi.com/2073-4360/15/12/2736 |
| work_keys_str_mv | AT fanxiao wearablepressuresensorusingporousnaturalpolymerhydrogelelastomerswithhighsensitivityoverawidesensingrange AT shunyujin wearablepressuresensorusingporousnaturalpolymerhydrogelelastomerswithhighsensitivityoverawidesensingrange AT wanzhang wearablepressuresensorusingporousnaturalpolymerhydrogelelastomerswithhighsensitivityoverawidesensingrange AT yingxinzhang wearablepressuresensorusingporousnaturalpolymerhydrogelelastomerswithhighsensitivityoverawidesensingrange AT hangzhou wearablepressuresensorusingporousnaturalpolymerhydrogelelastomerswithhighsensitivityoverawidesensingrange AT yuanhuang wearablepressuresensorusingporousnaturalpolymerhydrogelelastomerswithhighsensitivityoverawidesensingrange |