Issue 37, 2022

Transparent stretchable hydrogel sensors: materials, design and applications

Abstract

Flexible sensors have great potential for human motion sensing, medical monitoring, electronic skin and display devices. Flexible hydrogel sensors with transparent characteristics have a good visual effect, which can be used for “invisible” devices and visual optical monitoring, as well as to improve the aesthetics of devices for daily usage, etc. However, there are no systematic reviews on the working principle, characteristics and application prospects of transparent stretchable hydrogel sensors. In this review, we summarize recent advances in wearable strain sensors, pressure sensors, temperature sensors, humidity sensors and gas sensors based on transparent stretchable hydrogels, emphasizing materials, designs and applications. We also discuss the combinations and applications of sensors with emerging technologies such as wearable devices, artificial intelligence, human–computer interaction and 3D printing. Finally, this review presents a brief summary, challenges, and perspectives of transparent stretchable hydrogel sensors.

Graphical abstract: Transparent stretchable hydrogel sensors: materials, design and applications

Article information

Article type
Review Article
Submitted
18 mar 2022
Accepted
16 apr 2022
First published
22 apr 2022

J. Mater. Chem. C, 2022,10, 13351-13371

Transparent stretchable hydrogel sensors: materials, design and applications

Y. Liu, L. Wang, Y. Mi, S. Zhao, S. Qi, M. Sun, B. Peng, Q. Xu, Y. Niu and Y. Zhou, J. Mater. Chem. C, 2022, 10, 13351 DOI: 10.1039/D2TC01104B

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