Related Experiment Video
Updated: Dec 30, 2025
07:13
Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing
Published on: October 20, 2021
3.8K
Biointegrated and Wirelessly Powered Implantable Brain Devices: A Review
IEEE Transactions on Biomedical Circuits and Systems
|January 17, 2020
Summary
Developing chronic in vivo neural implants requires overcoming mechanical and physical mismatches. Future devices need biocompatibility, wireless power, and flexible electronics for long-term neural interfacing.
Area of Science:
- Neural Engineering
- Biomedical Devices
- Neuroscience
Background:
- Neural interfacing devices record neural activity (local field potentials, action potentials).
- Conventional neural implants face challenges with chronic in vivo implantation due to tissue incompatibility.
Purpose of the Study:
- To review biocompatibility and design approaches for biointegrated, wirelessly powered implantable neural devices.
- To outline challenges in developing next-generation implantable neural devices for long-term neural interfacing in animals.
Main Methods:
- Review of existing literature on biocompatibility and design strategies.
- Analysis of mechanical and physical properties of neural implants versus brain tissue.
Main Results:
- Mechanical/physical differences between implants and brain tissue cause inflammation and glial scarring, reducing recording/stimulation quality.
- Rigid, tethered devices cause tissue damage and hinder natural animal behavior, limiting chronic measurements.
Conclusions:
- Fully implantable neural devices require biocompatibility, wireless power/data, biointegration with flexible electronics, and chronic recording capabilities.
- Addressing these challenges is crucial for advancing long-term neural interfacing technologies.
