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Nerve-Inspired Optical Waveguide Stretchable Sensor Fusing Wireless Transmission and AI Enabling Smart

Tianliang Li1, Qian'ao Wang1, Zichun Cao1

  • 1School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan, Hubei, 430070, China.

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This study introduces a comfortable, stretchable optical waveguide sensor for monitoring muscle movement. This innovation enables advanced tele-healthcare for neurological disease diagnosis and rehabilitation.

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Wearable Technology

Background:

  • Flexible strain monitoring aids neurological disease diagnosis and rehabilitation.
  • Challenges include balancing sensitivity, stretchability, comfort, and integrating diagnosis/treatment.
  • Tele-healthcare systems require advanced wearable sensors.

Purpose of the Study:

  • To develop a novel hydrogel-based optical waveguide stretchable (HOWS) sensor.
  • To enhance comfort and portability for tele-healthcare applications.
  • To integrate sensing, wireless transmission, and AI for neurological disease assessment.

Main Methods:

  • Fabrication of a HOWS sensor with a double network structure for high stretchability and sensitivity.
  • Embedding the HOWS sensor in a bionic fabric using warp and weft knitting for enhanced comfort.
  • Integration with a circuit board for wireless signal transmission and a convolutional neural network (CNN) for AI-based disease assessment.

Main Results:

  • The HOWS sensor achieved high stretchability (up to 600% strain) and sensitivity (0.685 mV %⁻¹).
  • The bionic fabric enhanced wearing comfort.
  • A functional tele-healthcare system was demonstrated, integrating sensing, wireless transmission, and AI.

Conclusions:

  • The developed HOWS sensor offers a promising solution for flexible strain monitoring.
  • The smart tele-healthcare system shows potential for early warning and rehabilitation monitoring of neurological diseases.
  • This technology can significantly improve daily portability and patient care.