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Coral-Inspired Polyrotaxane Dynamic Antifouling Membrane Simultaneously Enhances Flux and Antifouling Performance

  • 0School of Textiles Engineering, Henan University of Engineering, Zhengzhou 450007, P. R.China.
Biomacromolecules +

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September 25, 2025

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September 25, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

Researchers developed a novel polyrotaxane membrane inspired by coral. This dynamic membrane exhibits enhanced antifouling properties and high flux, offering a new strategy for membrane technology.

Area Of Science

  • Materials Science
  • Biomimetic Engineering
  • Membrane Technology

Background

  • Soft corals possess natural self-cleaning abilities.
  • Existing membranes suffer from fouling, reducing efficiency.
  • Dynamic structures can potentially improve membrane performance.

Purpose Of The Study

  • To design a novel polyrotaxane-based membrane (EVOH-PR) mimicking soft coral's self-cleaning mechanism.
  • To enhance membrane flux and antifouling performance using sliding ring structures.
  • To investigate the dynamic antifouling mechanism enabled by molecular motion.

Main Methods

  • Synthesized polyrotaxane (EVOH-PR) using click chemistry.
  • Employed molecular dynamics simulations to study membrane behavior and antifouling mechanisms.
  • Conducted flux and stability tests to evaluate membrane performance.

Main Results

  • The EVOH-PR membrane demonstrated a high flux recovery rate (95.1%) and low flux decline (7.54%).
  • Achieved a maximum flux of 720 L/(m²·h).
  • Exhibited stable hydrophilicity and separation efficiency across multiple cycles.

Conclusions

  • The sliding-ring structure effectively induces hydration layers and steric hindrance for dynamic antifouling.
  • The coral-inspired molecular motion provides a proactive antifouling strategy.
  • EVOH-PR membranes offer a promising solution for improved membrane performance and longevity.

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