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Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape
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Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

Published on: January 8, 2014

Highly porous core-shell polymeric fiber network.

Muhammad Gulfam1, Jong Min Lee, Ji-eun Kim

  • 1Department of Bionano Engineering, Hanyang University, Ansan, 426-791 Korea.

Langmuir : the ACS Journal of Surfaces and Colloids
|July 8, 2011
PubMed
Summary
This summary is machine-generated.

Researchers created porous core-shell nanofibers using electrospinning for tissue engineering. These novel fiber networks demonstrate controlled pore formation and enhanced surface area, supporting diverse cell types for biological applications.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Cell Biology

Background:

  • Core-shell nanofibers are crucial for tissue engineering and cell biology.
  • Controlling pore formation in these structures is key for optimizing their function.
  • Existing methods may not offer sufficient control over nanofiber architecture.

Purpose of the Study:

  • To fabricate porous core-shell fiber networks with controlled pore formation.
  • To investigate the influence of phase separation and solvent evaporation on pore characteristics.
  • To evaluate the suitability of these networks as a matrix for cell culture.

Main Methods:

  • Utilized an electrospinning system with a water-immersed collector.
  • Synthesized core-shell nanofibers using polycaprolactone (PCL) and gelatin.
  • Analyzed nanofiber size, pore shape, and surface area through quantitative methods.

Main Results:

  • Nanofiber size increased with higher polycaprolactone (PCL) concentrations.
  • PCL fibers exhibited elongated pores, while gelatin-PCL core-shell fibers showed circular pores.
  • Porous nanofibers possessed larger surface areas compared to nonporous counterparts due to controlled phase separation and solvent evaporation.

Conclusions:

  • The developed electrospinning technique effectively creates porous core-shell fiber networks with tunable pore structures.
  • The porous core-shell fiber networks support the culture of various cell types, including embryonic stem cells, cancer cells, and fibroblasts.
  • These engineered porous nanofibers represent a promising platform for advanced tissue engineering and broader biological applications.