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Spiral formation at the microscale by μ-pyro-electrospinning
1Institute of Applied Sciences & Intelligent Systems of the National Council of Research (CNR-ISASI), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy. simonetta.grilli@cnr.it.
Soft Matter
|June 1, 2016
Summary
Researchers created microscale spiral fibers using μ-pyro-electrospinning, controlling instabilities to form regular patterns. Polymer concentration is key for reliable spirals, useful for cochlea regeneration scaffolds.
Area of Science:
- Materials Science
- Biotechnology
- Nanotechnology
Background:
- Spiral geometries are prevalent in nature, seen in snail shells and the cochlea.
- These natural and technological spiral structures offer unique properties for various applications.
Purpose of the Study:
- To demonstrate μ-pyro-electrospinning for controlled fabrication of microscale spiral fibers.
- To investigate the influence of polymer concentration on spiral formation.
- To assess the potential of these regular spiral templates for biomedical applications, specifically cochlea regeneration.
Main Methods:
- Utilizing μ-pyro-electrospinning to induce and control whipping instabilities.
- Fabricating spiral fibers with diameters down to 300 nm directly onto a support.
- Systematically varying polymer concentration to optimize spiral morphology and regularity.
- Investigating cellular response to the fabricated spiral microstructures.
Main Results:
- Successfully produced microscale spiral fibers with high regularity using μ-pyro-electrospinning.
- Identified polymer concentration as a critical factor for generating reliable and elongated spirals.
- Demonstrated the potential of these regular spiral templates for guiding cell behavior.
Conclusions:
- μ-pyro-electrospinning offers precise control over fiber morphology, enabling the creation of regular microscale spirals.
- Optimized polymer concentration is essential for reproducible spiral fiber fabrication.
- These engineered spiral scaffolds show promise for advanced tissue engineering, particularly for regenerating the complex structure of the cochlea.
