The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
Highly transparent, stretchable, and rapid self-healing polyvinyl alcohol/cellulose nanofibril hydrogel sensors for sensitive pressure sensing and human motion detection
Open accessAbstract
Abstract Wearable sensors have emerged as favored novel devices for human healthcare. Current sensors, however, suffer from low sensitivity, non-transparency, and lack of self-healing ability. In this study, we synthesized a polyvinyl alcohol/cellulose nanofibril (PVA/CNF) hydrogel with dual-crosslinked networks for highly transparent, stretchable, and self-healing pressure and strain sensors. The hydrogel contains dynamic borate bonds, metal–carboxylate coordination bonds, and hydrogen bonds, all of which contribute to the hydrogel’s superior dimensional stability, mechanical strength and flexibility, and spontaneous self-healing ability as compared to traditional PVA hydrogels. The developed hydrogel has a moderate modulus of 11.2 kPa, and a high elongation rate of 1900%. It spontaneously self-heals within 15 s upon contact without any external stimuli, has a high transmittance of over 90%, and has excellent compatibility with human fibroblasts. The capacitive sensor developed based on the PVA/CNF hydrogel has high sensitivity to very subtle pressure changes, such as small water droplets. When used as a strain sensor, it was capable of detecting and monitoring various human motions such as finger, knee, elbow, and head movements, breathing, and gentle tapping. The developed hydrogel and sensors not only show great potential in electronic skin, personal healthcare, and wearable devices, but may also inspire the development of transparent, intelligent skin-like sensors.
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Cited by
Ye, Y., Zhang, Y., Chen, Y., Han, X., & Jiang, F. (2020) · Advanced Functional Materials · doi:10.1002/adfm.202003430 · Cited by 826
Nanocomposite hydrogel-based strain and pressure sensors: a review
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Zhao, L., Ren, Z., Liu, X., Ling, Q., Li, Z., & Gu, H. (2021) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.1c01343 · Cited by 394
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Metadata
- Authors
- Jing, X., Li, H., Mi, H.-Y., Liu, Y.-J., Feng, P.-Y., Tan, Y.-M., & Turng, L.-S.
- Venue
- Sensors and Actuators B: Chemical
- Publisher
- Elsevier BV
- Published
- 2019-09
- Volume
- 295
- Pages
- 159-167
- ISSN
- 0925-4005 (ISSN-L)
- OpenAlex
- W2945816329
- Cited by
- 296
- References
- 13
- FWCI
- 11.61
- Type
- journal article
- Language
- en
- Open access
- green
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- Jing, X., Li, H., Mi, H.-Y., Liu, Y.-J., Feng, P.-Y., Tan, Y.-M., & Turng, L.-S. (2019). Highly transparent, stretchable, and rapid self-healing polyvinyl alcohol/cellulose nanofibril hydrogel sensors for sensitive pressure sensing and human motion detection. Sensors and Actuators B: Chemical. https://doi.org/10.1016/j.snb.2019.05.082
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