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May 10, 2026Angewandte Chemie

Visualization and Photo‐Programming of Chain Entanglements in Hydrogel Networks by Disulfide Exchange

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Authors

YSY W SunHSHui ShangZJZhenyi Jiang

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Overview

Randomized trial visualizes chain entanglements in hydrogel networks, indicating a new method for topological control.

Key Points

  • The aim is to encode and visualize chain entanglements within hydrogel networks using disulfide bonds and topological rearrangements.
  • Introduced photo-responsive disulfide bonds in a lamellar hydrogel framework.
  • Used controlled dehydration and UV-triggered disulfide exchange to fix topological constraints.
  • Patterned spatial distribution through photomask patterning and analyzed color shifts and lamellar spacing.
  • Changes in lamellar spacing and color shifts were successfully mapped in two dimensions.
  • pH stimulation facilitated three-dimensional shape morphing of patterned hydrogel regions.
  • The findings establish a relationship between microscopic constraints and macroscopic optical and mechanical responses.

Cite This Study

Sun et al. (2026) studied this question.

synapsesocial.com/papers/6a002126c8f74e3340f9c064https://doi.org/10.1002/ange.4598991
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