Insoluble synthetic polypeptide mats from aqueous solution by electrospinning

Area of Science:

• Biomaterials Science
• Polymer Chemistry
• Nanotechnology

Background:

• Developing water-insoluble synthetic polypeptide nanofiber mats is crucial for various biomedical applications.
• Previous methods often relied on animal-derived peptides or hazardous organic solvents.

Discussion:

• Electrospinning of poly(L-ornithine) (PLO) from aqueous solutions yielded fibers at concentrations above 20% w/v.
• Optimizing applied voltage and needle-to-collector distance was essential for successful nanofiber formation.
• Cross-linking with glutaraldehyde (GTA) vapor imparted water insolubility to the resulting nanofiber mats.

Key Insights:

• Successful synthesis of water-insoluble PLO nanofiber mats via aqueous electrospinning.
• Demonstrated control over fiber diameter and mat morphology through process parameter optimization.
• Achieved water insolubility without animal-derived materials or organic solvents.

Outlook:

• Potential applications in tissue engineering, drug delivery, and regenerative medicine.
• Further research could explore variations in polypeptide composition and cross-linking agents.
• This approach offers a greener and more sustainable route for synthetic biomaterial fabrication.