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Related Experiment Video

Updated: May 7, 2026

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

Published on: August 28, 2015

A Supraparticle-Based Approach to Robust Biomimetic Superhydrophobic Coatings.

Umair Sultan¹, Teresa Walter¹, Christian Wachter¹

¹Institute of Interfaces and Particle Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstrasse 4, 91058, Erlangen, Germany.

Small (Weinheim an Der Bergstrasse, Germany)

|September 5, 2025

Summary

This study introduces a fluorine-free method to create durable superhydrophobic coatings using supraparticles. This scalable technique mimics the lotus leaf

Keywords:

biomimetic repellent coatings robustness superhydrophobic supraparticles

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Last Updated: May 7, 2026

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

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Published on: August 28, 2015

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

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Published on: August 15, 2018

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Published on: February 11, 2020

Area of Science:

Materials Science
Surface Chemistry
Nanotechnology

Background:

Repellent surfaces resist biofouling, ice, and corrosion by minimizing water adhesion.
Lotus leaf-inspired hierarchical micro/nanostructuring is key to superhydrophobicity.
Existing methods often use harmful fluorinated compounds or lack durability.

Purpose of the Study:

Develop a fluorine-free, scalable, and robust method for superhydrophobic coatings.
Utilize supraparticles as building blocks for hierarchical surface roughness.
Mimic the lotus leaf's water-repellent properties.

Main Methods:

Fabrication of supraparticles via spray drying.
Introduction of hydrophobicity using alkyl-silanes.
Spray coating of supraparticles onto a polymeric primer layer.

Main Results:

Demonstrated hierarchical surface roughness mimicking the lotus leaf.
Quantified superhydrophobic performance using contact angles and roll-off angles.
Showcased enhanced robustness through binder addition and primer selection.

Conclusions:

The supraparticle approach offers a simple, scalable, and versatile strategy.
Achieved durable superhydrophobic coatings without problematic fluorinated compounds.
This method enables robust, lotus leaf-inspired surfaces for various applications.