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Cited by 518

The DOI matches its Crossref record; 57 of the 57 references it cites were found in a registry or an index.

Nanocellulose-Mediated Electroconductive Self-Healing Hydrogels with High Strength, Plasticity, Viscoelasticity, Stretchability, and Biocompatibility toward Multifunctional Applications

Ding, Qinqin, Xu, Xinwu, Yue, Yiying, Mei, Changtong, Huang, Chaobo, Jiang, Shaohua, Wu, Qinglin, Han, Jingquan·2018·ACS Applied Materials & Interfaces
DOI 10.1021/acsami.8b09656
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Abstract

Conducting polymer hydrogels (CPHs) have emerged as a fascinating class of smart soft matters important for various advanced applications. However, achieving the synergistic characteristics of conductivity, self-healing ability, biocompatibility, viscoelasticity, and high mechanical performance still remains a critical challenge. Here, we develop for the first time a type of multifunctional hybrid CPHs based on a viscoelastic polyvinyl alcohol (PVA)–borax (PB) gel matrix and nanostructured CNFs–PPy (cellulose nanofibers–polypyrrole) complexes that synergizes the biotemplate role of CNFs and the conductive nature of PPy. The CNF–PPy complexes are synthesized through in situ oxidative polymerization of pyrrole on the surface of CNF templates, which are further well-dispersed into the PB matrix to synthesize homogeneous CNF–PPy/PB hybrid hydrogels. The CNF–PPy complexes not only tangle with PVA chains though hydrogen bonds, but also form reversibly cross-linked complexes with borate ions. The multi-complexation between each component leads to the formation of a hierarchical three-dimensional network. The CNF–PPy/PB-3 hydrogel prepared by 2.0 wt % of PVA, 0.4 wt % of borax, and CNF–PPy complexes with a mass ratio of 3.75/1 exhibits the highest viscoelasticity and mechanical strength. Because of a combined reinforcing and conductive network inside the hydrogel, its maximum storage modulus (∼0.1 MPa) and nominal compression stress (∼22 MPa) are 60 and 2240 times higher than those of pure CNF/PB hydrogel, respectively. The CNF–PPy/PB-3 electrode with a conductivity of 3.65 ± 0.08 S m –1 has a maximum specific capacitance of 236.9 F g –1, and its specific capacitance degradation is less than 14% after 1500 cycles. The CNF–PPy/PB hybrid hydrogels also demonstrate attractive characteristics, including high water content (∼94%), low density (∼1.2 g cm –3 ), excellent biocompatibility, plasticity, pH sensitivity, and rapid self-healing ability without additional external stimuli. Taken together, the combination of such unique properties endows the newly developed CPHs with potential applications in flexible bioelectronics and provides a practical platform to design multifunctional smart soft materials.

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Metadata

Authors
Ding, Q., Xu, X., Yue, Y., Mei, C., Huang, C., Jiang, S., Wu, Q., & Han, J.
Venue
ACS Applied Materials & Interfaces
Publisher
American Chemical Society (ACS)
Published
2018-07-25
Volume
10
Issue
33
Pages
27987-28002
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
DOI
10.1021/acsami.8b09656
OpenAlex
W2884185584
Cited by
518
References
57
FWCI
21.89
Type
journal article
Language
en
Open access
closed

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