Issue 38, 2024

Toward next-generation wearable sensors based on MXene hydrogels

Abstract

With the rapid advancement of electronic and information technologies, such as artificial intelligence, medical monitoring, virtual reality, and human–machine interaction, flexible wearable sensors have gained increasing importance for future smart life. Hydrogel materials have garnered widespread attention in the realm of wearable sensors due to their three-dimensional biomimetic structure, flexibility, biocompatibility, and other advantageous properties. However, current hydrogel sensors suffer from issues such as low conductivity, mechanical degradation, and water loss. By introducing two-dimensional transition metal carbides and nitrides, so-called MXenes, to hydrogels, the MXene hydrogels are expected to show high electrical conductivity and excellent mechanical strength. Here in this manuscript, the design principles of MXene hydrogels are discussed in detail, together with strategies for enhancing the hydrogels' electrical and mechanical properties toward next-generation wearable sensors. Challenges and potential applications, especially in strain sensors, pressure sensors, temperature sensors, biosensors, humidity sensors, etc., are provided. This work is expected to provide insightful instructions for designing advanced hydrogel sensors.

Graphical abstract: Toward next-generation wearable sensors based on MXene hydrogels

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Article information

Article type
Review Article
Submitted
18 jul 2024
Accepted
19 aug 2024
First published
22 aug 2024

J. Mater. Chem. A, 2024,12, 25622-25642

Toward next-generation wearable sensors based on MXene hydrogels

Q. He, C. Zhao, H. Chen, T. Wu, C. Zeng, Y. Chen and C. Zhang, J. Mater. Chem. A, 2024, 12, 25622 DOI: 10.1039/D4TA04996A

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