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Related Experiment Video

Updated: Jun 3, 2026

Microwave-assisted Functionalization of Poly(ethylene glycol) and On-resin Peptides for Use in Chain Polymerizations and Hydrogel Formation
15:33

Microwave-assisted Functionalization of Poly(ethylene glycol) and On-resin Peptides for Use in Chain Polymerizations and Hydrogel Formation

Published on: October 29, 2013

Multivalent, biodegradable polyglycerol hydrogels.

Dirk Steinhilber1, Rainer Haag, Adam L Sisson

  • 1Institute for Chemistry and Biochemistry, Free University Berlin, Berlin, Germany.

The International Journal of Artificial Organs
|March 5, 2011
PubMed
Summary
This summary is machine-generated.

Researchers developed disulfide crosslinked polyglycerol hydrogels. These novel hydrogels degrade in reducing environments, enabling controlled release of encapsulated substances like fluorescent dyes.

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Area of Science:

  • Polymer Chemistry
  • Biomaterials Science
  • Materials Engineering

Background:

  • Polyglycerol hydrogels offer potential as biomaterials.
  • Disulfide crosslinking enables environmentally responsive properties.
  • Controlled release systems are crucial for drug delivery and tissue engineering.

Purpose of the Study:

  • To synthesize disulfide crosslinked polyglycerol hydrogels.
  • To investigate the degradation behavior of these hydrogels in reducing environments.
  • To evaluate the potential for controlled release of encapsulated substances.

Main Methods:

  • Ring-opening crosslinking polymerization of glycerol and polyethylene glycol-based polyepoxides with Na2S2.
  • Acid-catalyzed hydrolysis for creating multivalent hydrogels.
  • Encapsulation of a near-infrared fluorescent dye within the hydrogel network.

Main Results:

  • Successful synthesis of disulfide crosslinked polyglycerol hydrogels.
  • Demonstrated complete degradation of hydrogels in reducing environments.
  • Observed controlled release of the encapsulated fluorescent dye.

Conclusions:

  • Disulfide crosslinked polyglycerol hydrogels are stimuli-responsive materials.
  • These hydrogels exhibit tunable degradation properties.
  • The developed hydrogels show promise as scaffolds for the controlled release of bioactive substances.