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Related Experiment Video

Updated: May 24, 2025

Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management
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3D Integrated Physicochemical-Sensing Electronic Skin.

Peilong Li1, Yunfan Li1, Xiao Chen1

  • 1School of Power and Mechanical Engineering, Wuhan University, Wuhan, Hubei, 430072, China.

Small (Weinheim an Der Bergstrasse, Germany)
|March 3, 2025
PubMed
Summary

A novel three-dimensional integrated physicochemical-sensing electronic skin (e-skin) offers enhanced multifunctionality and miniaturization. This advanced e-skin integrates pressure and glucose sensing, bridging the gap between electronic and natural skin for healthcare applications.

Keywords:
3D integratedE‐skinmulti‐functionalpressure sensingsweat detection

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Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Sensor Technology

Background:

  • Integrating physical and chemical sensing is crucial for advancing electronic skin (e-skin) capabilities.
  • Current 2D integration methods limit e-skin multifunctionality and miniaturization.

Purpose of the Study:

  • To develop a three-dimensional integrated physicochemical-sensing e-skin (TDPSES) for enhanced performance.
  • To overcome the limitations of 2D integration in e-skin development.

Main Methods:

  • Fabrication of TDPSES using a 3D superposition of piezoresistive sensing, biochemical sensing electrodes, and microfluidics.
  • Characterization of pressure sensing performance (sensitivity, stability).
  • Evaluation of glucose sensing in sweat (sensitivity, detection limit).

Main Results:

  • TDPSES achieved ultra-high sensitivity (208.6 kPa⁻¹) for pressure sensing with excellent stability (8000 cycles).
  • Glucose sensing demonstrated a sensitivity of 3.925 µA mm⁻¹ and a detection limit of 29.1 µm.
  • The device exhibited intelligent fluid-driving characteristics and monitored physiological signals like sweat, pulse, and voice.

Conclusions:

  • TDPSES offers a novel approach for creating miniaturized, multifunctional e-skin.
  • The developed e-skin effectively bridges the performance gap between electronic and natural skin.
  • TDPSES shows significant potential for advanced healthcare monitoring applications.