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Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management
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NIR-Induced Power-Effective Smart Bandage for Wound Infection Monitoring and Accelerated Healing.

Hongting Ma1, ChengZe Qiu2, Jinhui Bao3

  • 1Central Hospital of Dalian University of Technology, School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, China.

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|May 12, 2025
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Summary

This study introduces a smart flexible bandage with integrated sensing and therapy for chronic wound healing. The wearable bandage monitors biomarkers and uses photothermal effects to accelerate healing, offering a power-efficient solution.

Keywords:
Flexible SensorPhotothermal HealingWound Care ManagementWound Infection Monitor

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Nanotechnology

Background:

  • Traditional bandages lack integrated sensing and therapeutic capabilities, often using wires that compromise comfort.
  • Chronic wound healing requires effective physiological monitoring and targeted treatment, which current solutions do not adequately provide.
  • The soft-hard interface in conventional smart bandages limits wearer comfort and practicality.

Purpose of the Study:

  • To design and develop a biocompatible smart flexible bandage with integrated sensing and photothermal therapeutic functions.
  • To overcome the limitations of wired components in current advanced bandages by creating a fully integrated system.
  • To demonstrate the efficacy of the smart bandage in monitoring wound biomarkers and accelerating chronic wound healing.

Main Methods:

  • Fabrication of a reduced graphene oxide/polyacrylamide hydrogel (rGO/PAM Gel) therapeutic dressing.
  • Integration of an Au/rGO modified biosensor for biomarker detection.
  • Utilizing the photothermal capability of rGO/PAM Gel under near-infrared (NIR) irradiation for therapeutic effects.
  • Conducting in situ animal studies to evaluate monitoring and therapeutic performance.

Main Results:

  • The rGO/PAM Gel dressing exhibited significant photothermal capability, increasing local temperature under NIR irradiation.
  • The integrated biosensor demonstrated high sensing performance for wound exudate biomarkers, such as uric acid.
  • In situ animal studies confirmed the smart bandage's ability to effectively monitor biomarkers and accelerate wound healing.
  • The developed bandage achieved maximum light energy efficiency for accelerated healing.

Conclusions:

  • The developed smart flexible bandage offers an integrated, comfortable, and power-efficient approach for chronic wound care.
  • This technology enables simultaneous physiological monitoring and accelerated therapeutic intervention, improving clinical wound management.
  • The wearable biosensor and photothermal therapy combination presents a promising advancement in smart wound healing solutions.