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Related Experiment Video

Updated: May 5, 2026

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications
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Robust Flexible Superhydrophobic Film with Skin-Inspired Gradient Design.

Zhijie Zhang1,2, Zhihong Zhao3, Xixi Liu1

  • 1Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, China.

Advanced Materials (Deerfield Beach, Fla.)
|August 29, 2025
PubMed
Summary

This study introduces a flexible, robust superhydrophobic material inspired by skin. The novel design enhances durability against abrasion and environmental factors, enabling advanced applications in various technologies.

Keywords:
flexible superhydrophobic filmrobustnessskin‐inspired gradient design

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Area of Science:

  • Materials Science
  • Surface Chemistry
  • Nanotechnology

Background:

  • Flexible superhydrophobic materials are crucial for applications like separation, thermal management, anti-icing, and wearable electronics due to their adaptability.
  • However, existing materials often suffer from fragility and poor abrasion resistance, limiting their practical use.

Purpose of the Study:

  • To develop a flexible and robust superhydrophobic material with enhanced durability.
  • To investigate a skin-inspired gradient design for improved material properties.

Main Methods:

  • A skin-inspired gradient design was employed, utilizing pressure, electrostatic forces, and capillary forces to engulf nanoparticles in a polymer matrix.
  • The resulting freestanding film was subjected to rigorous testing for flexibility, superhydrophobicity, abrasion resistance, UV aging, and salt spray corrosion.

Main Results:

  • The developed superhydrophobic film demonstrated exceptional flexibility and durability, withstanding 70% strain, over 5000 bending/stretching cycles, 400 Taber abrasion cycles, 1500 hours of UV aging, and 40 days of salt spray corrosion.
  • The material exhibited high-performance anti-icing properties, with a significant delay in ice formation and low ice adhesion strength, maintaining performance over multiple cycles.
  • The film also showed skin-like breathability and sensing capabilities, suitable for underwater electronics.

Conclusions:

  • The proposed skin-inspired gradient strategy successfully creates freestanding, flexible, and robust superhydrophobic materials.
  • This approach offers a promising new direction for engineering durable superhydrophobic surfaces for diverse technological applications.