AC electrospray biomaterials synthesis

Area of Science:

• Biomaterials Science
• Nanotechnology
• Biomedical Engineering

Background:

• Biomaterial fabrication methods often face challenges with speed, safety, and preserving the integrity of encapsulated substances.
• Developing advanced materials for tissue engineering and drug delivery requires precise control over particle and fiber characteristics.

Purpose of the Study:

• To introduce a rapid, safe, and viable fabrication method for biomaterials using high-frequency AC electrospraying.
• To explore the potential of this method for creating polymeric nanoparticles, drug-loaded microcapsules, and biodegradable fibers for biomedical applications.

Main Methods:

• Utilizing high-frequency alternating current (AC) electrospraying for biomaterial synthesis.
• Fabricating polymeric nanoparticles, micron-sized biodegradable polymer shells for drug encapsulation, and 1-micrometer biodegradable fibers with tunable pore sizes.

Main Results:

• Demonstrated successful synthesis of monodispersed nanoparticles and micron-sized polymer shells.
• Produced biodegradable fibers with adjustable pore sizes suitable for bioscaffolding.
• Observed that the absence of charge in ejected drops and fibers prevents protein/DNA denaturation and compound ionization.

Conclusions:

• High-frequency AC electrospraying is a versatile and effective technique for fabricating advanced biomaterials.
• The method's charge-neutral output is advantageous for pulmonary drug delivery, encapsulation, and preserving sensitive biomolecules.
• The fabricated materials show significant potential for tissue/orthopaedic engineering and wound care therapy.