The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.
Highly Stretchable and Biocompatible Strain Sensors Based on Mussel-Inspired Super-Adhesive Self-Healing Hydrogels for Human Motion Monitoring
Abstract
Integrating multifunctionality such as adhesiveness, stretchability, and self-healing ability on a single hydrogel has been a challenge and is a highly desired development for various applications including electronic skin, wound dressings, and wearable devices. In this study, a novel hydrogel was synthesized by incorporating polydopamine-coated talc (PDA-talc) nanoflakes into a polyacrylamide (PAM) hydrogel inspired by the natural mussel adhesive mechanism. Dopamine molecules were intercalated into talc and oxidized, which enhanced the dispersion of talc and preserved catechol groups in the hydrogel. The resulting dopamine-talc-PAM (DTPAM) hydrogel showed a remarkable stretchability, with over 1000% extension and a recovery rate over 99%. It also displayed strong adhesiveness to various substrates, including human skin, and the adhesion strength surpassed that of commercial double-sided tape and glue sticks, even as the hydrogel dehydrated over time. Moreover, the DTPAM hydrogel could rapidly self-heal and regain its mechanical properties without needing any external stimuli. It showed excellent biocompatibility and improved cell affinity to human fibroblasts compared to the PAM hydrogel. When used as a strain sensor, the DTPAM hydrogel showed high sensitivity, with a gauge factor of 0.693 at 1000% strain, and was capable of monitoring various human motions such as the bending of a finger, knee, or elbow and taking a deep breath. Therefore, this hydrogel displays favorable attributes and is highly suitable for use in human-friendly biological devices.
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Cites
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Highly Stretchable Piezoresistive Graphene–Nanocellulose Nanopaper for Strain Sensors
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Cited by
Bio-Integrated Wearable Systems: A Comprehensive Review
Ray, T. R., Choi, J., Bandodkar, A. J., Krishnan, S., Gutruf, P., Tian, L., Ghaffari, R., & Rogers, J. A. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00573 · Cited by 1,350
End-to-end design of wearable sensors
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Highly Stretchable, Adhesive, Biocompatible, and Antibacterial Hydrogel Dressings for Wound Healing
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Recent advances in wet adhesives: Adhesion mechanism, design principle and applications
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Metadata
- Authors
- Jing, X., Mi, H.-Y., Lin, Y.-J., Enriquez, E., Peng, X.-F., & Turng, L.-S.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-06-04
- Volume
- 10
- Issue
- 24
- Pages
- 20897-20909
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2806259909
- Cited by
- 492
- References
- 11
- FWCI
- 22.37
- Type
- journal article
- Language
- en
- Open access
- closed
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- Jing, X., Mi, H.-Y., Lin, Y.-J., Enriquez, E., Peng, X.-F., & Turng, L.-S. (2018). Highly Stretchable and Biocompatible Strain Sensors Based on Mussel-Inspired Super-Adhesive Self-Healing Hydrogels for Human Motion Monitoring. ACS Applied Materials & Interfaces. https://doi.org/10.1021/acsami.8b06475
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