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Multimode Visualization of Electronic Skin from Bioinspired Colorimetric Sensor.

Jingxuan Xu1, Chaoyi Ban1, Fei Xiu1

  • 1Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.

ACS Applied Materials & Interfaces
|June 17, 2021
PubMed
Summary

This study introduces a novel stretchable electronic skin that changes color to visualize multiple stimuli. This bioinspired biosensor offers advanced capabilities for sensing pressure, strain, voltage, and temperature simultaneously.

Keywords:
colorimetricelectronic skinmultimodesensorvisualization

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Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Sensors and Actuators

Background:

  • Bioskins can detect external stimuli like mechanical or temperature changes and convert them into visual signals.
  • Integrating simultaneous detection of multiple complex stimuli with visualization in a single biosensor remains a significant challenge.

Purpose of the Study:

  • To develop an all-solution-processed, bioinspired, stretchable electronic skin with interactive color changes.
  • To achieve simultaneous detection of multiple complex external stimuli in a single biosensor device.

Main Methods:

  • Fabrication of a novel bioinspired stretchable electronic skin using an all-solution process.
  • Integration of four-mode sensing capabilities (pressure, strain, voltage, temperature) with visual feedback.
  • Demonstration of color changes (brown to green to yellow) corresponding to stimulus intensity.

Main Results:

  • The fabricated biosensor exhibited sensitive responses to pressure, strain, voltage, and temperature.
  • Interactive color changes served as a visualization method for detected stimuli.
  • The e-skin successfully demonstrated simultaneous sensing of multiple complex stimuli.

Conclusions:

  • The developed electronic skin offers a promising solution for integrated sensing and visualization.
  • Potential applications include military defense, healthcare monitoring, and advanced smart bionic skin technologies.