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Related Experiment Video

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A Wireless, Bidirectional Interface for In Vivo Recording and Stimulation of Neural Activity in Freely Behaving Rats

A Wireless, Bidirectional Interface for In Vivo Recording and Stimulation of Neural Activity in Freely Behaving Rats

Published on: November 7, 2017

Wireless Recording in the Peripheral Nervous System with Ultrasonic Neural Dust.

Dongjin Seo¹, Ryan M Neely², Konlin Shen¹

¹Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, Berkeley, CA 94720, USA.

|August 7, 2016

Summary

Researchers developed neural dust, a wireless ultrasonic system for bioelectronic medicine. This scalable technology powers and communicates with tiny implanted devices, offering a new way to record nerve signals.

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Last Updated: Mar 16, 2026

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Published on: November 4, 2013

Area of Science:

Bioelectronic Medicine
Neuroscience
Biomedical Engineering

Background:

Current bioelectronic medicine interfaces face challenges with wires and scalability for small nerves.
Existing technologies lack high spatial resolution for recording nerve activity.

Purpose of the Study:

To introduce neural dust, a wireless ultrasonic backscatter system.
To demonstrate a scalable solution for powering and communicating with implanted bioelectronics.

Main Methods:

Utilized ultrasound for powering mm-scale devices in tissue.
Employed passive, battery-less ultrasonic backscatter for communication.
Recorded electromyogram (EMG) and electroneurogram (ENG) signals in anesthetized rats.

Main Results:

Ultrasound effectively delivered power to implanted devices.
High-fidelity EMG and ENG signal transmission was achieved wirelessly.
Demonstrated the potential of mm-scale, wireless bioelectronic interfaces.

Conclusions:

Neural dust offers a scalable, wireless solution for interfacing with peripheral nerves and muscles.
The technology advances bioelectronic medicine by enabling high-resolution neural recording.
This system holds promise for future bioelectronics-based therapies.