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December 9, 2025ACS Applied Materials & Interfaces

A Hydration-Entropy Lubrication Coupling Strategy for Superhydrophilicity and Ultralow Friction of Hydrogel Coatings

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Authors

SLSiming LiXSXiaohui SongYLYuchen Lu

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Overview

Engineering hydrogel coatings reveals superhydrophilicity and ultralow friction, suggesting improved biocompatibility and sustainability for biomedical applications.

Key Points

  • To develop hydrogel coatings that achieve superhydrophilicity and ultralow friction for biomedical surfaces.
  • Engineered hydrogel coatings based on a hydration-entropy lubrication coupling strategy.
  • Tuned polymerization kinetics in an oxygen-rich environment to rapidly form coatings.
  • Tested hydrogels for friction and water contact angle measurements.
  • Achieved ultralow friction of 0.008, significantly lower than regular hydrogels.
  • Demonstrated static contact angle of 7.9°, indicating superhydrophilicity.
  • Ensured coating integrity and function at pressures of approximately 0.25 MPa for over 60 days.

Cite This Study

Li et al. (2025) studied this question.

synapsesocial.com/papers/69401efa2d562116f28f98a9https://doi.org/10.1021/acsami.5c21090
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