Highly sensitive and high strength hydrogel sensors with interpenetrating network structure for strain-stimulus detection

Zhang, Xiaomin; Chen, Shuo; Ding, Ziyang; Chen, Mei

doi:10.1016/j.sna.2023.114388

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…Currently, a wide range of conductive hydrogels has been developed displaying diverse conducting mechanisms, such as conducting polymers, [15][16][17] ionic compounds [18][19][20] and metal nanomaterials. 21 Among them, ionic conductive hydrogels are especially attractive because of their facile preparation a Key Laboratory for Biobased Materials and Energy of Ministry of Education, technology, high conductivity and low cost.…”

Section: Introductionmentioning

confidence: 99%

Facile and fast preparation of stretchable, self-adhesive, moisturizing, antifreezing and conductive tough hydrogel for wearable strain sensors

Chao,

Li,

Wang

et al. 2024

J. Mater. Chem. C

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Section: Introductionmentioning

confidence: 99%

Facile and fast preparation of stretchable, self-adhesive, moisturizing, antifreezing and conductive tough hydrogel for wearable strain sensors

Chao,

Li,

Wang

et al. 2024

J. Mater. Chem. C

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“…Hydrogels with unique 3D cross-linked network can exhibit excellent mechanical properties, endowing them with promising applications in various fields including biomedicine, flexible electronics, and soft robots. [1][2][3][4] Nevertheless, traditional hydrogels are fragile to withstand large deformations due to the lack of effective energy dissipation mechanisms, resulting in a poor mechanical performance. Hydrogels with high mechanical properties have gradually become a hot research topic.…”

Section: Introductionmentioning

confidence: 99%

Study on the mechanical properties of hydrogels enhanced by acryloyl‐functionalized polyethyleneimine cross‐links

Lv,

Cao,

et al. 2024

J of Applied Polymer Sci

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Appropriate mechanical properties is one of the prerequisites for the applications of hydrogels, where cross‐linker is a crucial component in manipulating such mechanical property. Herein, acryloyl‐functionalized polyethyleneimine (APEI) was innovatively used as novel functional cross‐links to optimize the mechanical properties of polyacrylamide (PAM) hydrogels. APEI cross‐links were synthesized by simply adding acryloyl chloride into polyethyleneimine in aqueous solution. The chemical structures of APEI were confirmed by Fourier transform infrared and nuclear magnetic resonance spectra. APEI possessed massive highly acryloyl functional groups that can serve as multifunctional cross‐linking centers for the polymerization of monomers via covalent bonding interactions. These covalent bonds are favorable for constructing a firm 3D cross‐linked networks for hydrogels to withstand deformations, endowing hydrogels with the improved mechanical properties. The tensile strength with an elongation at break for the hydrogels can reach 234 kPa and 18.4‐fold, respectively. In addition, even the hydrogels can bear cyclic mechanical loads and deformations for 50 cycles at 5‐fold stain, indicating a good fatigue resistance. The deformability of APEI cross‐links clusters under stretching was responsible for the stretchability of PAM/APEI hydrogels. This work provides a simple strategy to enhance the mechanical properties of hydrogels via the development of novel APEI chemical cross‐linker.

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Effects of Enteromorpha prolifera sulfated polysaccharide and aluminium ion addition on the multifunctional property of conductive hydrogel for wearable strain sensing

Cai,

Gao,

et al. 2024

International Journal of Biological Macromolecules

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Highly sensitive and high strength hydrogel sensors with interpenetrating network structure for strain-stimulus detection

Cited by 4 publications

References 33 publications

Facile and fast preparation of stretchable, self-adhesive, moisturizing, antifreezing and conductive tough hydrogel for wearable strain sensors

Facile and fast preparation of stretchable, self-adhesive, moisturizing, antifreezing and conductive tough hydrogel for wearable strain sensors

Study on the mechanical properties of hydrogels enhanced by acryloyl‐functionalized polyethyleneimine cross‐links

Effects of Enteromorpha prolifera sulfated polysaccharide and aluminium ion addition on the multifunctional property of conductive hydrogel for wearable strain sensing

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