Issue 26, 2023

Multifunctional small biomolecules as key building blocks in the development of hydrogel-based strain sensors

Abstract

Hydrogels are three-dimensional polymer networks that are considered a promising option for developing strain sensors due to their stretchability, mechanical robustness, and high water content. These attributes make hydrogel-based sensors suitable for various applications, such as wearable electronics, human–machine interfaces, health monitoring, and soft robotics. Small biomolecules, which are biologically derived and possess attributes such as renewability, eco-friendliness, and multifunctionality, have been consistently explored for use in hydrogel-based strain sensors to improve their multifunctional properties and strain-sensing performance. This review offers a comprehensive overview of incorporating small biomolecules in developing hydrogel-based strain sensors, with a focus on enhancing their multifunctional properties and strain-sensing performance. Firstly, the representative applications and strain-sensing mechanisms of hydrogel-based strain sensors are introduced. Subsequently, the status of the functional properties of the hydrogels and the performance indicators of their strain-sensing abilities are outlined. Finally, multifunctional small biomolecules are described, followed by a comprehensive discussion concerning recent developments regarding their role in enhancing various functional properties and the performance of hydrogel-based strain sensors. Furthermore, the latest trends and perspectives on the future of hydrogel-based strain sensors are also reported.

Graphical abstract: Multifunctional small biomolecules as key building blocks in the development of hydrogel-based strain sensors

Article information

Article type
Review Article
Submitted
17 mar 2023
Accepted
16 mai 2023
First published
17 mai 2023

J. Mater. Chem. A, 2023,11, 13844-13875

Multifunctional small biomolecules as key building blocks in the development of hydrogel-based strain sensors

S. F. A. Zaidi, A. Saeed, J. H. Heo and J. H. Lee, J. Mater. Chem. A, 2023, 11, 13844 DOI: 10.1039/D3TA01627G

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