Biomimetic epidermal sensors assembled from polydopamine-modified reduced graphene oxide/polyvinyl alcohol hydrogels for the real-time monitoring of human motions
文献类型：期刊论文
| 作者 | Zhang, Hua; Ren, Penggang; Yang, Fan; Chen, Jing; Wang, Chenxu; Zhoub, Yang; Fu, Jun |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY B
 |
| 出版日期 | 2020 |
| 卷号 | 8期号:46页码:10549-10558 |
| 关键词 | STRAIN SENSORS CONDUCTIVE HYDROGELS OXIDE HYDROGELS SELF-ADHESIVE PRESSURE TOUGH SOFT |
| 英文摘要 | Conductive hydrogel-based epidermal strain sensors can generate repeatable electrical changes upon mechanical deformations for indication of the skin's physiological condition. However, this remains challenging for many conductive hydrogel sensors due to biomechanical mismatch with skin tissues and an unstable resistance variation response, resulting in non-conformable deformations with the epidermis and dermis, and consequently generating inaccurate monitoring of human movements. Herein, a conductive hydrogel that highly matches the skin is fabricated from dynamically hydrogen-bonded nanocrystallites of polydopamine-modified reduced graphene oxide (PDA-rGO) nanosheets composited with polyvinyl alcohol, namely the PDA-rGO/PVA hydrogel. PDA-rGO provides a large number of dynamic hydrogen-bonding interactions in the hydrogel, resulting in a skin-matching modulus (78 kPa) and stretchability. Moreover, the resultant hydrogel possesses excellent cytocompatibility and conductivity (0.87 S m(-1)), high sensitivity (gauge factor of compression: 20) at low strain and outstanding linearity at high strain as well as a stable resistance variation response. These desirable properties enable the application of the PDA-rGO/PVA hydrogel as a skin-friendly wearable sensor for real-time and accurate detection of both large-scale joint movements and tiny physiological signals, including the bending and relaxing of fingers, the wrist, elbow and knee joints, and wrist pulse and swallowing. Moreover, this hydrogel is integrated into a 2D sensor array that monitors strains or pressures in two dimensions, which is promising for electronic skin, biosensors, human-machine interfaces, and wearable electronic devices. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22377]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2020专题_期刊论文 2021专题_期刊论文 |
| 作者单位 | 1.Fu, J (corresponding author), Sun Yat Sen Univ, Sch Mat Sci & Engn, Guangzhou 510275, Peoples R China. 2.Ren, PG (corresponding author), Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhang, Hua,Ren, Penggang,Yang, Fan,et al. Biomimetic epidermal sensors assembled from polydopamine-modified reduced graphene oxide/polyvinyl alcohol hydrogels for the real-time monitoring of human motions[J]. JOURNAL OF MATERIALS CHEMISTRY B,2020,8(46):10549-10558. |
| APA | Zhang, Hua.,Ren, Penggang.,Yang, Fan.,Chen, Jing.,Wang, Chenxu.,...&Fu, Jun.(2020).Biomimetic epidermal sensors assembled from polydopamine-modified reduced graphene oxide/polyvinyl alcohol hydrogels for the real-time monitoring of human motions.JOURNAL OF MATERIALS CHEMISTRY B,8(46),10549-10558. |
| MLA | Zhang, Hua,et al."Biomimetic epidermal sensors assembled from polydopamine-modified reduced graphene oxide/polyvinyl alcohol hydrogels for the real-time monitoring of human motions".JOURNAL OF MATERIALS CHEMISTRY B 8.46(2020):10549-10558. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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