Flexible, Biodegradable, and Wireless Magnetoelectric Paper for Simple In Situ Personalization of Bioelectric...

Area of Science:

• Biomedical Engineering
• Materials Science
• Neuroscience

Background:

• Bioelectronic implants offer a pharmaceutical alternative for electrotherapy.
• Personalizing implants for specific patient needs remains a significant challenge.
• Key requirements include flexibility, biocompatibility, biodegradability, and wireless stimulation.

Purpose of the Study:

• To introduce a flexible, biodegradable bioelectronic paper for personalized bioelectronic implants.
• To demonstrate wireless electrical stimulation and control of cell microstructural orientation.
• To showcase the platform's scalability and customizability for various 3D structures.

Main Methods:

• Fabrication of a bioelectronic paper integrating magnetoelectric nanoparticles (MENs) within biodegradable nanofibers (NFs).
• Utilizing paper crafting techniques (cutting, folding) for 3D structure creation.
• In vitro testing of wireless electrical stimulation on neuron-like PC12 cells.

Main Results:

• Demonstrated effective wireless electrical stimulation via external magnetic fields.
• Showcased enhanced neuronal differentiation and controlled microstructural orientation of PC12 cells.
• Confirmed scalability, design flexibility, and rapid customizability through 3D macrostructure fabrication.

Conclusions:

• The developed bioelectronic paper offers a simple and rapid method for personalizing temporary bioelectronic implants.
• This platform enables minimally invasive wireless stimulation therapies.
• The material's properties support customized treatment in diverse clinical scenarios.