Nanocellulose and multi-walled carbon nanotubes reinforced polyacrylamide/sodium alginate conductive hydrogel as flexible sensor

Feng, Chao; Cai, Lifan; Zhu, Guiyou; Chen, Lehui; Xie, Xinxin; Guo, Jianwei

doi:10.1016/j.jcis.2024.08.067

Journal of Colloid and Interface Science

2025

DOI: 10.1016/j.jcis.2024.08.067

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Nanocellulose and multi-walled carbon nanotubes reinforced polyacrylamide/sodium alginate conductive hydrogel as flexible sensor

Chao Feng,

Lifan Cai,

Guiyou Zhu

et al.

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Cited by 6 publications

References 41 publications

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Double network hydrogel confined MXene/Liquid metal by dynamic hydrogen bond for high-performance wearable sensors

Lou,

Wang,

Peng

et al. 2024

Chemical Engineering Journal

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Double network hydrogel confined MXene/Liquid metal by dynamic hydrogen bond for high-performance wearable sensors

Lou,

Wang,

Peng

et al. 2024

Chemical Engineering Journal

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Sodium alginate based piezoelectric hydrogel for promoting healing of infected wounds at movable parts

Chen,

Zou,

Zhang

et al. 2025

International Journal of Biological Macromolecules

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Conductive Hydrogel with Ta₄C₃T_X MXene to Detect Human Movement

Wu,

Yu,

Zhou

et al. 2024

ACS Appl. Nano Mater.

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Nanocomposite hydrogels with exceptional mechanical properties and sensing performance are ideal for flexible sensors designed to detect human movements and monitor human health. In this study, a composite hydrogel was prepared through in situ polymerization using a combination of poly(methacrylic acid-coacrylamide) (P(MAA-co-AAM)), poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS), and Ta 4 C 3 T X MXene. The resulting P(MAA-co-AAM)/PEDOT/PSS/Ta 4 C 3 T X hydrogel features a porous network structure closely cross-linked with hydrogen bonds, providing superior mechanical properties such as high elastic modulus, compressive strength, and low hysteresis ratio. The compressive strength of the hydrogel reaches 386.80 kPa, significantly surpassing that of pure P(MAA-co-AAM) hydrogels and other hydrogels. The piezoresistive sensor developed with this hydrogel demonstrates outstanding pressure sensing capabilities: a sensitivity of 0.44 kPa −1 , a low detection limit of 38.63 Pa, a rapid response time of 44 ms, and a recovery time of 58 ms. Notably, the sensor can sustain over 1000 sensing cycles with remarkable stability and weather resistance. It can accurately detect human body movements, such as joint movements, and even recognize subtle facial microexpressions. Furthermore, the sensor can wirelessly monitor robotic movements through a Bluetooth system and accompanying software. This mechanically robust hydrogel holds significant promise for applications in pressure sensors, human-machine interaction, and portable wearable devices.

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Nanocellulose and multi-walled carbon nanotubes reinforced polyacrylamide/sodium alginate conductive hydrogel as flexible sensor

Cited by 6 publications

References 41 publications

Double network hydrogel confined MXene/Liquid metal by dynamic hydrogen bond for high-performance wearable sensors

Double network hydrogel confined MXene/Liquid metal by dynamic hydrogen bond for high-performance wearable sensors

Sodium alginate based piezoelectric hydrogel for promoting healing of infected wounds at movable parts

Conductive Hydrogel with Ta₄C₃T_X MXene to Detect Human Movement

Contact Info

Product

Resources

About

Nanocellulose and multi-walled carbon nanotubes reinforced polyacrylamide/sodium alginate conductive hydrogel as flexible sensor

Cited by 6 publications

References 41 publications

Double network hydrogel confined MXene/Liquid metal by dynamic hydrogen bond for high-performance wearable sensors

Double network hydrogel confined MXene/Liquid metal by dynamic hydrogen bond for high-performance wearable sensors

Sodium alginate based piezoelectric hydrogel for promoting healing of infected wounds at movable parts

Conductive Hydrogel with Ta4C3TX MXene to Detect Human Movement

Contact Info

Product

Resources

About

Conductive Hydrogel with Ta₄C₃T_X MXene to Detect Human Movement