Design, Fabrication, and Implantation of Invasive Microelectrode Arrays as in vivo Brain Machine Interfaces: A...

Area of Science:

• Neuroscience
• Biomedical Engineering
• Materials Science

Background:

• Microelectrode Arrays (MEAs) are essential tools for high-resolution neural recordings and stimulations.
• Decades of research have yielded diverse MEA types (microwire, silicon, flexible) utilizing advanced materials and manufacturing.
• The development of flexible MEAs presents new surgical implantation challenges.

Purpose of the Study:

• To review design considerations and manufacturing processes for invasive MEAs.
• To evaluate challenges and solutions for surgical implantation of MEAs into the brain.
• To identify research gaps and propose future directions in invasive MEA development.

Main Methods:

• Literature review of MEA design, manufacturing, and implantation strategies.
• Engineering perspective analysis of state-of-the-art MEA technologies.
• Evaluation of surgical implantation techniques and associated challenges.

Main Results:

• Various invasive MEA designs and manufacturing techniques have been developed.
• Successful strategies for overcoming surgical implantation challenges have been identified.
• Key research gaps in MEA design, manufacturing, and implantation are highlighted.

Conclusions:

• Invasive MEAs are vital for understanding brain function via in vivo brain-machine interfaces.
• Advances in materials and manufacturing have improved MEA capabilities.
• Future research should focus on design, manufacturing, and implantation to enhance MEA technology.