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September 10, 2025Advanced ScienceOpen Access

Dual‐Wavelength Responsive Hydrogel Glue with Visible‐Light Bonding and UV‐Triggered Debonding via Ortho‐Nitrobenzyl Cleavage

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Authors

HWHuaming WangNanjing University of Aeronautics and AstronauticsXSXianyan ShenUniversity of PittsburghCDChangling DuBinzhou University

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Overview

Dual-wavelength hydrogel demonstrates effective adhesion in biomedical applications, suggesting precise control over bonding and debonding.

Key Points

  • The dual-wavelength hydrogel achieves a strong adhesion of approximately 200 kPa, enabling effective bonding for use in biomedical devices.
  • Using visible light polymerization and UV-triggered debonding, the system allows independent control over adhesion, with rapid detachment of fourfold reduction in strength within 90 seconds.
  • Employing camphorquinone as a photoinitiator, this hydrogel integrates photopolymerization and photodegradation for advanced adhesive applications.
  • Rheological assessments show that UV exposure significantly reduces the hydrogel's storage modulus and crosslinking density, indicating structural failure.

Cite This Study

Wang et al. (2025) studied this question.

synapsesocial.com/papers/68c1ad5c54b1d3bfb60e556ahttps://doi.org/10.1002/advs.202507809
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