Issue 54, 2021

Towards conductive hydrogels in e-skins: a review on rational design and recent developments

Abstract

Over the past decades, electronic skins (e-skins) have attracted significant attention owing to their feasibility of applications in health monitoring, motion detection, and entertainment. As a class of soft materials, conductive hydrogels feature biocompatibility, stretchability, adhesiveness, and self-healing properties, making them one of the most important candidates for high-performance e-skins. However, profound challenges remain for achieving the combination of superior mechanical strength and conductivity of conductive hydrogels simultaneously without sacrificing their multifunctionalities. Herein, a framework for rational designs to fabricate conductive hydrogels are proposed, including the fundamental strategies of copolymerization, doping, and self-assembly. In addition, we provide a comprehensive analysis of their merits and demerits when the conductive hydrogels are fabricated in different ways. Furthermore, the recent progress and future perspective for conductive hydrogels in terms of electronic skins are highlighted.

Graphical abstract: Towards conductive hydrogels in e-skins: a review on rational design and recent developments

Article information

Article type
Review Article
Submitted
13 6 2021
Accepted
24 9 2021
First published
18 10 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2021,11, 33835-33848

Towards conductive hydrogels in e-skins: a review on rational design and recent developments

C. Li, RSC Adv., 2021, 11, 33835 DOI: 10.1039/D1RA04573C

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