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Related Experiment Video

Updated: Jul 2, 2026

An Additive Manufacturing Technique for the Facile and Rapid Fabrication of Hydrogel-based Micromachines with Magnetically Responsive Components
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Hydrogel for light delivery in biomedical applications.

Pek Yin Michelle Yew1,2, Pei Lin Chee1, Qianyu Lin3

  • 1Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, 627833, Singapore.

Bioactive Materials
|May 1, 2024
PubMed
Summary

Hydrogel optical waveguides offer biocompatible alternatives to silica for biomedical applications. This review explores their designs, applications like contact lenses and biosensors, and future clinical potential.

Keywords:
BiocompatibilityFlexibilityOptical fibresPhotodynamic therapyTransparent hydrogels

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Area of Science:

  • Biomaterials Science
  • Optoelectronics
  • Biomedical Engineering

Background:

  • Traditional silica-based optical waveguides lack biocompatibility and suitable mechanical properties for biomedical use.
  • Biocompatible hydrogels with optical transparency and flexibility are needed for in-body applications.

Purpose of the Study:

  • To review hydrogel-based optical waveguides derived from natural and synthetic sources.
  • To highlight advancements in hydrogel optical waveguide technology for healthcare.

Main Methods:

  • Review of existing literature on hydrogel-based optical waveguides.
  • Analysis of different hydrogel material designs and their optical properties.
  • Exploration of applications in light-emitting contact lenses, implantable optical fibers, and biosensing.

Main Results:

  • Hydrogel optical waveguides demonstrate potential for various biomedical applications.
  • Key developments include light-emitting contact lenses, implantable optical fibers, and biosensing systems.
  • Luminating and fluorescent hydrogel materials are also discussed.

Conclusions:

  • Hydrogel optical waveguides present a promising biocompatible alternative to traditional materials.
  • Further research and development are needed to overcome challenges for clinical translation.
  • Future perspectives focus on achieving widespread clinical applications in healthcare.