articleAdvanced Functional MaterialsMar 31, 2022Closed access

Stretchable Triboelectric Self‐Powered Sweat Sensor Fabricated from Self‐Healing Nanocellulose Hydrogels

Guangxi University

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Abstract

Abstract Though visualizing perspiration constituents is crucial for physiological evaluation, inadequate material healing and unreliable power supply methods restrict its applications. Herein, a fully flexible self‐powered sweat sensor is fabricated from a cellulose‐based conductive hydrogel to address these issues. The hydrogel electrode is composed of a cellulose nanocomposite polymerized in situ with polyaniline and cross‐linked with polyvinyl alcohol/borax. The cellulose nanocomposites furnish the sweat sensor with tensile and electrical self‐healing efficiencies exceeding 95% within 10 s, a stretchability of 1530%, and conductivity of 0.6 S m −1 . The sweat sensor quantitatively analyzes Na + , K + , and…

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361
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Authors

8

Topics & keywords

Keywords
  • Materials science
  • Perspiration
  • Nanocellulose
  • Triboelectric effect
  • Self-healing hydrogels
  • Self-healing
  • Nanotechnology
  • Composite material
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