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Tough Al-alginate/Poly(N-isopropylacrylamide) Hydrogel with Tunable LCST for Soft Robotics
Abstract
Tough Al-alginate/poly(N-isopropylacrylamide) (PNIPAM) hydrogel has been synthesized by introducing an interpenetrating network with hybrid physically cross-linked alginate and chemically cross-linked PNIPAM. Varying the concentration of AlCl3 regulates the mechanical properties of the tough hydrogel and tunes its lower critical solution temperature (LCST) as well. The tough Al-alginate/PNIPAM exhibits 6.3 ± 0.3 MPa of compressive stress and 9.95 of uniaxial stretch. Tunability of LCST is also achieved in a wide range within 22.5-32 °C. A bending beam actuator and a four-arm gripper made of bilayer (Na-alginate/PNIPAM)/(Al-alginate/PNIPAM) hydrogel as prototype of all-hydrogel soft robotics are demonstrated. A finite element (FE) simulation model is developed to simulate the deformation of the soft robotics. The FE simulation not only reproduces the deformation process of performed experiments but also predicts more complicated devices that can be explored in the future. This work broadens the application of temperature-responsive PNIPAM-based hydrogels.
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Cited by
Functional and Biomimetic Materials for Engineering of the Three-Dimensional Cell Microenvironment
Huang, G., Li, F., Zhao, X., Ma, Y., Li, Y., Lin, M., Jin, G., Lu, T. J., Genin, G. M., & Xu, F. (2017) · Chemical Reviews · doi:10.1021/acs.chemrev.7b00094 · Cited by 825
Zhao, B., Ni, Y., Chen, K., Lin, Z., Jia, Z., & Qiu, H. (2023) · Progress in Organic Coatings · doi:10.1016/j.porgcoat.2023.107518 · Cited by 28
Metadata
- Authors
- Zheng, W. J., An, N., Yang, J. H., Zhou, J., & Chen, Y. M.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-01-16
- Volume
- 7
- Issue
- 3
- Pages
- 1758-1764
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2315517127
- Cited by
- 433
- References
- 0
- FWCI
- 29.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zheng, W. J., An, N., Yang, J. H., Zhou, J., & Chen, Y. M. (2015). Tough Al-alginate/Poly(N-isopropylacrylamide) Hydrogel with Tunable LCST for Soft Robotics. ACS Applied Materials & Interfaces. https://doi.org/10.1021/am507339r
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