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Related Experiment Video

Updated: May 7, 2026

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold
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Published on: October 23, 2015

Template-assisted electrohydrodynamic atomization of polycaprolactone for orthopedic patterning applications.

Anouska Nithyanandan1, Suntharavathanan Mahalingam, Jie Huang

  • 1Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom.

Materials Science & Engineering. C, Materials for Biological Applications
|October 8, 2013
PubMed
Summary

This study introduces a new method for depositing biodegradable polycaprolactone (PCL) patterns using template-assisted electrohydrodynamic atomization (TAEA). This technique offers precise control over pattern geometry and mechanical properties for advanced material applications.

Keywords:
ElectrosprayingOrthopedicsPatterningPolymerTemplate-assisted

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Published on: January 4, 2011

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Tri-layered Electrospinning to Mimic Native Arterial Architecture using Polycaprolactone, Elastin, and Collagen: A Preliminary Study

Published on: January 4, 2011

Area of Science:

  • Materials Science
  • Polymer Science
  • Surface Engineering

Background:

  • Biodegradable polymers like polycaprolactone (PCL) are crucial for biomedical and environmental applications.
  • Precise deposition of polymer patterns is essential for fabricating advanced functional materials.
  • Existing techniques often lack control over morphology and mechanical properties.

Purpose of the Study:

  • To develop a novel method for depositing biodegradable polycaprolactone (PCL) polymer patterns on metallic substrates.
  • To investigate the influence of process parameters on pattern geometry, morphology, and mechanical properties.
  • To achieve well-defined, repeatable polymer patterns with controlled thickness and hardness.

Main Methods:

  • Utilized template-assisted electrohydrodynamic atomization (TAEA) for polymer deposition.
  • Systematically varied PCL concentration (2-15 wt.%) and flow rate (1-25 μl min⁻¹).
  • Employed optical microscopy, scanning electron microscopy, profilometry, and nanoindentation for characterization.

Main Results:

  • Achieved precise control over pattern geometry and thickness by adjusting spraying time.
  • Optimal hexagonal patterns (~34 μm thickness) were obtained using 5 wt.% PCL in DMAC at specific TAEA parameters.
  • Nanoindentation revealed hardness of 1.6 MPa and effective elastic modulus of ~12 MPa at a loading rate of 0.1 μN/s, with hardness decreasing at higher rates.

Conclusions:

  • Template-assisted electrohydrodynamic atomization (TAEA) is a viable technique for fabricating well-defined biodegradable PCL patterns.
  • Process parameters significantly influence the structural and mechanical characteristics of the deposited patterns.
  • The developed method enables controlled fabrication of polymer patterns with tunable mechanical properties.