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Related Experiment Video

Updated: Feb 23, 2026

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Sustained releasing sponge-like 3D scaffolds for bone tissue engineering applications.

Vidya N Chamundeswari1, Lui Yuan Siang1, Yon Jin Chuah2

  • 1School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.

Biomedical Materials (Bristol, England)
|September 13, 2017
PubMed
Summary

This study developed a novel 3D electrospun scaffold for tissue engineering. The scaffold supports cell growth and sustained drug release, showing promise for bone tissue regeneration.

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Tissue Engineering

Background:

  • Traditional 2D scaffolds have limitations in mimicking native tissue structures and can cause pore blockage.
  • Three-dimensional (3D) scaffolds are crucial for effective tissue engineering, with electrospinning being a key fabrication technique.

Purpose of the Study:

  • To develop a modified one-step electrospinning process for fabricating a 3D scaffold with interconnected pores.
  • To evaluate the potential of a dexamethasone (Dex)-loaded 3D scaffold for bone tissue engineering applications.

Main Methods:

  • A blend of poly (L-lactide)/polycaprolactone/poly (ethylene oxide) was used in a modified one-step electrospinning process.
  • The resulting 3D scaffold's pore structure, mechanical viability, and cell penetration depth were assessed.
  • Dexamethasone (Dex) was incorporated for sustained drug release studies.
  • Mesenchymal stem cells were used to evaluate the scaffold's potential for upregulating osteogenic genes.

Main Results:

  • A mechanically viable, sponge-like 3D scaffold with highly interconnected pores was successfully fabricated.
  • The scaffold exhibited large pores and enabled cell penetration exceeding 500 μm.
  • Sustained release of loaded dexamethasone (Dex) was achieved.
  • The Dex-loaded 3D scaffold demonstrated potential for upregulating osteogenic genes in mesenchymal stem cells.

Conclusions:

  • The developed 3D electrospun scaffold offers a promising platform for bone tissue engineering due to its unique morphology and controlled drug release.
  • The scaffold's interconnected porous structure and ability to support cell infiltration make it suitable for regenerative medicine applications.
  • Further tailoring of this scaffold could extend its utility to other tissue engineering fields beyond bone regeneration.