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Related Experiment Video

Updated: May 28, 2026

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications
09:22

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

Published on: August 28, 2015

Superhydrophobic poly(L-lactic acid) surface as potential bacterial colonization substrate.

Cláudia Sousa1, Diana Rodrigues, Rosário Oliveira

  • 1Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal. jazeredo@deb.uminho.pt.

AMB Express
|October 25, 2011
PubMed
Summary

Superhydrophobic poly(L-lactic acid) (PLLA) surfaces support bacterial colonization, with higher Staphylococcus aureus numbers on rough superhydrophobic (SH) PLLA than smooth hydrophobic (H) PLLA. Pseudomonas aeruginosa formed biofilms on SH PLLA surfaces.

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High-throughput Identification of Bacteria Repellent Polymers for Medical Devices
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High-throughput Identification of Bacteria Repellent Polymers for Medical Devices

Published on: November 5, 2016

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Last Updated: May 28, 2026

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications
09:22

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

Published on: August 28, 2015

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices
10:43

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices

Published on: November 5, 2016

Area of Science:

  • Materials Science
  • Biotechnology
  • Surface Chemistry

Background:

  • Superhydrophobic surfaces are gaining interest for their unique properties.
  • Poly(L-lactic acid) (PLLA) can be fabricated into superhydrophobic surfaces using cost-effective methods.
  • Understanding bacterial interactions with these surfaces is crucial for applications.

Purpose of the Study:

  • To assess bacterial colonization on superhydrophobic (SH) and hydrophobic (H) PLLA surfaces.
  • To compare the colonization of Staphylococcus aureus and Pseudomonas aeruginosa on these surfaces.
  • To evaluate the potential of SH PLLA for biotechnology applications.

Main Methods:

  • Fabrication of rough superhydrophobic (SH) PLLA and smooth hydrophobic (H) PLLA surfaces.
  • Inoculation of surfaces with Staphylococcus aureus and Pseudomonas aeruginosa.
  • Quantification of bacterial colonization using colony-forming units.
  • Visualization of bacterial-surface interactions using scanning electron microscopy.

Main Results:

  • Both bacterial strains colonized both SH and H PLLA surfaces.
  • Significantly higher numbers of Staphylococcus aureus were found on SH PLLA compared to H PLLA.
  • Pseudomonas aeruginosa formed biofilms on SH PLLA surfaces, indicated by extracellular matrix production.
  • Bacterial removal via the lotus effect was less efficient on SH PLLA than H PLLA.

Conclusions:

  • SH PLLA surfaces support bacterial colonization and biofilm formation.
  • These superhydrophobic surfaces show potential for biotechnology applications.
  • Surface properties influence bacterial adhesion and biofilm development.