articleAdvanced Functional MaterialsMar 2, 2023BRONZE OA

Highly Oxidation‐Resistant and Self‐Healable MXene‐Based Hydrogels for Wearable Strain Sensor

ACAri ChaeGMG. MuraliSLSeul‐Yi LeeJGJeonghwan GwakSJSeon Joon Kim

Korea Advanced Institute of Science and Technology · Korea Institute of Science and Technology · +2 more institutions

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Abstract

Abstract Very recently, MXene‐based wearable hydrogels have emerged as promising candidates for epidermal sensors due to their tissue‐like softness and unique electrical and mechanical properties. However, it remains a challenge to achieve MXene‐based hydrogels with reliable sensing performance and prolonged service life, because MXene inevitably oxidizes in water‐containing system of the hydrogels. Herein, catechol‐functionalized poly(vinyl alcohol) (PVA‐CA)‐based hydrogels is proposed to inhibit the oxidation of MXene, leading to rapid self‐healing and superior strain sensing behaviors. Sufficient interaction of hydrophobic catechol groups with the MXene surface reduces the oxidation‐accessible sites in the…

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217
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Authors

14

Topics & keywords

Topics
Keywords
  • Self-healing hydrogels
  • Materials science
  • Vinyl alcohol
  • Wearable computer
  • Self-healing
  • Nanotechnology
  • Wearable technology
  • Catechol
UN Sustainable Development Goals
  • Clean water and sanitation
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