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Correction: Kang et al. Fluid Flow to Electricity: Capturing Flow-Induced Vibrations with Micro-Electromechanical-System-Based Piezoelectric Energy Harvester. <i>Micromachines</i> 2024, <i>15</i>, 581.

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A Composite Microfiber for Biodegradable Stretchable Electronics.

Adeela Hanif1, Gargi Ghosh1, Montri Meeseepong2

  • 1School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Kyunggi-do, Korea.

Micromachines
|September 28, 2021
PubMed
Summary
This summary is machine-generated.

Researchers developed a new biodegradable composite microfiber using poly(glycerol sebacate) (PGS) and polyvinyl alcohol (PVA). This material advances environmentally friendly stretchable electronics for transient applications.

Keywords:
biodegradablemicrofiberpoly(glycerol sebacate)poly(vinyl alcohol)stretchable electronicstransient electronics

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Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Environmental Science

Background:

  • Biodegradable electronics offer environmental benefits but often lack conformality for wearable and implantable devices.
  • Existing flexible biodegradable materials present limitations in device integration and performance.
  • There is a need for advanced materials enabling transient, high-performance, and environmentally friendly electronic systems.

Purpose of the Study:

  • To develop a biodegradable, biocompatible, and stretchable composite microfiber for transient electronic applications.
  • To overcome the processing and mechanical limitations of pure poly(glycerol sebacate) (PGS) using polyvinyl alcohol (PVA).
  • To demonstrate the potential of this composite material in a functional strain sensor.

Main Methods:

  • Fabrication of a composite microfiber using poly(glycerol sebacate) (PGS) and polyvinyl alcohol (PVA).
  • Incorporation of gold nanoparticles (AuNPs) into the composite microfiber to create a strain sensor.
  • Testing the sensor's response to cyclic and dynamic stretching (up to 30% strain).
  • Evaluating the sensor's ability to detect physiological strains in human movements.

Main Results:

  • The composite microfiber exhibited enhanced processability, formability, and mechanical strength compared to pure PGS.
  • The AuNP-incorporated microfiber strain sensor demonstrated a stable current response under various stretching conditions.
  • The sensor successfully monitored strain associated with finger, knee, and esophageal movements.
  • The material proved to be biodegradable and biocompatible, suitable for transient applications.

Conclusions:

  • The composite microfiber of PGS and PVA is a promising material for developing transient and environmentally friendly stretchable electronics.
  • This material overcomes the limitations of pure PGS, enabling better device fabrication and performance.
  • The developed strain sensor highlights the potential of these materials for wearable and implantable health monitoring devices with a reduced environmental impact.