Abstract The transition of wearable electronics from rigid components to skin‐interfaced systems has driven the search for materials that mimic the mechanical compliance of biological tissues. While hydrogels offer tissue‐like softness, their inevitable dehydration limits long‐term stability and functionality. Eutectogels, formed by immobilizing deep eutectic solvents (DESs) within polymer networks, have emerged as a robust alternative that overcomes these volatility issues while retaining intrinsic ionic conductivity and biocompatibility. This review provides a comprehensive roadmap of the eutectogel platform, starting from the fundamental chemistry of DESs to the design strategies for crosslinked polymer architectures. We analyze how specific fabrication methods tailor critical properties such as environmental tolerance, interfacial adhesion, and mechanical resilience. These material attributes enable a diverse range of applications, including high‐sensitivity strain sensing, electrophysiological monitoring, and advanced human‐machine interfaces. Beyond current capabilities, we critically examine the translational challenges facing the field, particularly the trade‐off between ionic conductivity and structural integrity. The discussion extends to emerging opportunities that will define the next generation of eutectogels, specifically the integration of artificial intelligence for data‐driven material discovery and signal interpretation, the adoption of three‐dimensional printing for customized manufacturing, and the development of fully recyclable networks to ensure life‐cycle sustainability.
Zhou et al. (Thu,) studied this question.
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