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Updated: May 20, 2026

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications
Published on: August 28, 2015
Wettability influences cell behavior on superhydrophobic surfaces with different topographies
Bianca N Lourenço1, Giulia Marchioli, Welong Song
13B's Research Group-Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, AvePark, Taipas, Guimarães, Portugal.
Cell behavior on biomaterials is primarily dictated by surface wettability, not topography or polymer type. Superhydrophobic surfaces hinder cell proliferation despite allowing adhesion, highlighting wettability
Area of Science:
- Biomaterials Science
- Surface Chemistry
- Cell Biology
Background:
- Surface wettability and topography critically influence cell behavior on biomaterials.
- Limited research exists on cell responses to surfaces with extreme wettability combined with topography.
Purpose of the Study:
- To investigate if cell behavior on superhydrophobic surfaces is affected by surface topography and polymer type.
- To compare cell responses on smooth versus rough superhydrophobic surfaces made from different polymers.
Main Methods:
- Fabrication of biomimetic superhydrophobic rough surfaces (polystyrene, poly(L-lactic acid)) using a phase-separation method.
- Quantification of total protein adsorption (bovine serum albumin).
- Assessment of cell attachment and proliferation using mouse osteoblastic MC3T3-E1 cells and primary bovine articular chondrocytes.
Main Results:
- Rough superhydrophobic surfaces showed reduced protein adsorption compared to smooth surfaces.
- Cells attached to superhydrophobic surfaces but exhibited inhibited proliferation.
- Cells attached and proliferated better on smooth surfaces compared to rough ones.
Conclusions:
- Surface wettability is the dominant factor influencing cell behavior on biomaterials.
- Superhydrophobic surfaces, despite allowing cell adhesion, inhibit proliferation.
- Neither polymer type nor the specific topography of superhydrophobic surfaces significantly altered cell behavior compared to wettability.
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