The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.
Freezing-Tolerant, Highly Sensitive Strain and Pressure Sensors Assembled from Ionic Conductive Hydrogels with Dynamic Cross-Links
Abstract
Conductive hydrogels have attracted intensive attention for versatile functions in flexible electronics because of their unique combination of mechanical flexibility and conductivity. However, hydrogels containing plenty of water inevitably freeze at subzero temperature, leading to invalid electronics with failed mechanical advantages and negligible conductivity. Moreover, the inferior elasticity and fatigue resistance of hydrogels result in unstable sensing performance and poor reusability of hydrogel-based electronics. Herein, a freezing-tolerant, high-sensitive, durable strain and pressure sensor was constructed from an ionic conductive chitosan–poly(acrylamide- co -acrylic acid) double-network [CS–P(AM- co -AA) DN] hydrogel with dual-dynamic cross-links (chitosan physical network and ionic coordination [CO 2 LFe III ]), which was feasibly fabricated by soaking the CS–P(AM- co -AA) composite hydrogel in FeCl 3 solution. The ions immobilized in dynamic cross-links exerted crucial effects on improving mechanics [prominent tensile performance, supercompressibility, extraordinary elasticity, fast self-recovery capacity, and remarkable fatigue resistance (1000 cycles)]; meanwhile, the free ions in the hydrogel rendered the hydrogel excellent conductivity and strong freezing tolerance concurrently. The sensor assembled from the DN hydrogel exhibited cycling stability and good durability in detecting pressure, various deformations (elongation, compression, and bend), and human motions even at a low temperature (−20 °C). Notably, the sensitivity on detecting strain and pressure at both room and subzero temperature was superior than most of the reported organohydrogel and hydrogel sensors. Thus, we believe that this work will provide a platform for construction and application of high-sensitive strain and pressure hydrogel sensors with cycling stability and good durability in a wide temperature range.
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Cites
Why are double network hydrogels so tough?
Gong, J. P. (2010) · Soft Matter · doi:10.1039/b924290b · Cited by 2,328
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Highly Stretchable, Elastic, and Ionic Conductive Hydrogel for Artificial Soft Electronics
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Cited by
Li, S.-N., Yu, Z.-R., Guo, B.-F., Guo, K.-Y., Li, Y., Gong, L.-X., Zhao, L., Bae, J., & Tang, L.-C. (2021) · Nano Energy · doi:10.1016/j.nanoen.2021.106502 · Cited by 341
Conductive polymer based hydrogels and their application in wearable sensors: a review
Liu, D., Huyan, C., Wang, Z., Guo, Z., Zhang, X., Torun, H., Mulvihill, D., Xu, B. B., & Chen, F. (2023) · Materials Horizons · doi:10.1039/d3mh00056g · Cited by 282
Tissue adhesive hydrogel bioelectronics
Li, S., Cong, Y., & Fu, J. (2021) · Journal of Materials Chemistry B · doi:10.1039/d1tb00523e · Cited by 257
Wu, Z., Wang, H., Ding, Q., Tao, K., Shi, W., Liu, C., Chen, J., & Wu, J. (2023) · Advanced Functional Materials · doi:10.1002/adfm.202300046 · Cited by 162
Zeng, S., Zhang, J., Zu, G., & Huang, J. (2021) · Carbohydrate Polymers · doi:10.1016/j.carbpol.2021.118198 · Cited by 148
Metadata
- Authors
- Liu, H., Wang, X., Cao, Y., Yang, Y., Yang, Y., Gao, Y., Ma, Z., Wang, J., Wang, W., & Wu, D.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2020-05-18
- Volume
- 12
- Issue
- 22
- Pages
- 25334-25344
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W3026312221
- Cited by
- 300
- References
- 49
- FWCI
- 13.27
- Type
- journal article
- Language
- en
- Open access
- closed
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- Liu, H., Wang, X., Cao, Y., Yang, Y., Yang, Y., Gao, Y., Ma, Z., Wang, J., Wang, W., & Wu, D. (2020). Freezing-Tolerant, Highly Sensitive Strain and Pressure Sensors Assembled from Ionic Conductive Hydrogels with Dynamic Cross-Links. ACS Applied Materials & Interfaces. https://doi.org/10.1021/acsami.0c06067
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