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3D Printed Sugar-Sensing Hydrogels.

Danielle Bruen1,2, Colm Delaney3, Johnson Chung2

  • 1Insight Centre for Data Analytics, National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland.

Macromolecular Rapid Communications
|February 25, 2020
PubMed
Summary
This summary is machine-generated.

This study introduces 3D-printed hydrogels for detecting sugars. Boronic acid-functionalized hydrogels show fluorescence changes in response to glucose and fructose, enabling practical sugar sensing.

Keywords:
3D printingboronic acidfluorescenceglucosehydrogels

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Area of Science:

  • Biomaterials Science
  • Analytical Chemistry
  • Chemical Engineering

Background:

  • Boronic acids (BAs) reversibly bind diols like sugars.
  • Boronic acid-sugar interactions can be monitored via fluorescence in solution.
  • Translating solution-based sensing to practical applications requires new methodologies.

Purpose of the Study:

  • To develop the first 3D-printed hydrogels for sugar sensing.
  • To integrate boronic acid-fluorophore pairs into a printable hydrogel matrix.
  • To create a practical, solid-state platform for sugar detection.

Main Methods:

  • Fabrication of hydrogels using gelatin methacrylamide (GelMA) and boronic acid-functionalized monomers.
  • Optimization of monomeric cocktails for extrusion 3D printing.
  • Characterization of hydrogel structure and fluorescence response to varying sugar concentrations.

Main Results:

  • Successfully 3D printed structured, porous hydrogels.
  • Demonstrated measurable and reproducible linear fluorescence response to glucose and fructose.
  • Sensing capabilities were effective up to 100 mM concentrations.

Conclusions:

  • Presented the first example of 3D-printed sugar-sensing hydrogels.
  • Established a viable method for creating solid-state, fluorescent sugar sensors.
  • This technology offers a promising platform for practical sugar detection applications.