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Related Experiment Video

Updated: Jun 15, 2026

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning
12:07

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Published on: April 16, 2018

Conductive, physiologically responsive hydrogels.

Jin-Oh You1, Debra T Auguste

  • 1School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.

Langmuir : the ACS Journal of Surfaces and Colloids
|March 5, 2010
PubMed
Summary
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We developed pH-responsive hydrogels with gold nanoparticles that change electrical conductivity. This material can help assess disease pathology by detecting pH shifts in the body.

Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Medical Diagnostics

Background:

  • Molecular sensing and electrical conductivity are crucial for disease pathology assessment.
  • Developing intelligent materials that respond to physiological changes is a key area of research.

Purpose of the Study:

  • To create pH-responsive hydrogels integrated with gold nanoparticles.
  • To demonstrate reversible conductivity changes in response to physiological pH shifts.

Main Methods:

  • Synthesized gold nanoparticles homogeneously within hydrogel matrices.
  • Investigated the volumetric swelling of hydrogels in response to pH changes from 7.4 to 5.5.
  • Fabricated micropatterned arrays to create conductive conduits.

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Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture
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Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture

Published on: July 10, 2013

Related Experiment Videos

Last Updated: Jun 15, 2026

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning
12:07

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Published on: April 16, 2018

Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture
10:49

Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture

Published on: July 10, 2013

Main Results:

  • The hybrid hydrogels exhibited reversible changes in electrical conductivity.
  • pH-induced volumetric swelling modulated the material's conductivity.
  • Micropatterned arrays facilitated the creation of tunable conductive pathways.

Conclusions:

  • pH-responsive hydrogels with gold nanoparticles offer a novel platform for electrical biosensing.
  • These materials can be utilized for disease pathology assessment by detecting physiological pH variations.
  • The tunable conductivity and conductive conduit formation present opportunities for advanced diagnostic tools.