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Electrospinning Fibrous Polymer Scaffolds for Tissue Engineering and Cell Culture

Electrospinning Fibrous Polymer Scaffolds for Tissue Engineering and Cell Culture

Published on: October 21, 2009

A unique device for controlled electrospinning.

S B Mitchell¹, J E Sanders

¹Department of Bioengineering, University of Washington, Seattle, Washington 98195, USA.

Journal of Biomedical Materials Research. Part A

|April 11, 2006

Summary

A novel electrospinning system allows precise control over fibro-porous scaffold manufacturing for tissue engineering. Collection surface properties, not voltage or temperature, proved most critical for controlling fiber diameter and spacing.

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Area of Science:

Biomaterials Engineering
Tissue Engineering
Polymer Science

Background:

Controlled fabrication of fibro-porous scaffolds is crucial for tissue engineering.
Existing electrospinning methods offer limited control over scaffold architecture.
Optimizing fiber diameter and inter-fiber spacing is key for cell interaction and tissue regeneration.

Purpose of the Study:

To develop a closed-loop controlled electrospinning system for precise scaffold fabrication.
To investigate the sensitivity of mesh architecture to various manufacturing parameters.
To achieve scaffolds with well-controlled fiber diameters and inter-fiber spacing for biomedical applications.

Main Methods:

A custom electrospinning system with an independent collection surface was designed and built.

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Published on: December 23, 2017

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Key manufacturing parameters were manipulated and analyzed: electrode distance, nozzle-to-collection distance, voltage, temperature, collection surface dielectric strength, and area.

Morphological analysis was performed on fabricated thermoplastic polyurethane meshes.

Main Results:

All tested parameters significantly influenced fiber diameter and inter-fiber spacing.
Collection surface dielectric strength and area were more dominant factors than voltage or temperature.
The system produced thermoplastic polyurethane meshes with fiber diameters of 5–18 µm (variability <1.8%) and inter-fiber spacing of 4–90 µm (variability <20.2%).

Conclusions:

The developed electrospinning system offers enhanced control over scaffold architecture.
Collection surface characteristics play a critical role in electrospinning outcomes, contrary to some existing literature.
This technology holds significant potential for creating customized scaffolds for diverse biomedical applications.