Graphene-based neural electrodes: from materials and device fabrication to properties

Area of Science:

• Bioelectronics
• Neuroscience
• Materials Science

Background:

• Neural electrodes are crucial for electrophysiological communication between neurons and electronic devices.
• Applications include neuroscientific research, neural prosthetics, and neuromodulation.
• Graphene and its derivatives are emerging as promising materials in bioelectronics.

Purpose of the Study:

• To review and summarize existing research on graphene and graphene-related material-based electrochemical neural electrodes.
• To provide an overview of diverse fabrication approaches and their motivations.
• To identify strategies for future improvements in graphene-based neural electrode technology.

Main Methods:

• Comparative summary of key studies on graphene-based neural electrodes.
• Analysis of diverse fabrication approaches and material properties.
• Review of in vivo and in vitro applications.

Main Results:

• Graphene-based electrodes exhibit fatigue-resistant flexibility, high electrical conductivity, and optical transparency.
• These electrodes offer increased specific surface area and superior electrochemical durability.
• Advanced surface functionalization properties enhance their suitability for neural applications.

Conclusions:

• Graphene-based neural electrodes present significant advantages over traditional materials.
• Their properties make them ideal for advanced neuroscientific research and neural prosthetics.
• Further research can optimize fabrication and functionalization for enhanced in vivo performance.