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Updated: Jun 15, 2026

Large-scale Recording of Neurons by Movable Silicon Probes in Behaving Rodents

Large-scale Recording of Neurons by Movable Silicon Probes in Behaving Rodents

Published on: March 4, 2012

Magnetically Guided Flexible Bioelectronic Probe for Single-Cell Recordings in Multi-Scale Biosystems.

Ju-Young Kim^1,2, Heehun Kim^1,2, Moo Hyun Kim²

¹Graduate Program of Nano Biomedical Engineering (NanoBME), Advanced Science Institute, Yonsei University, Seoul, 03722, Republic of Korea.

Advanced Materials (Deerfield Beach, Fla.)

|October 21, 2025

Summary

This summary is machine-generated.

Researchers developed a magnetically guided neural-interfacing probe (Mag-N-Probe) for precise, remote control of bioelectronic systems. This innovation allows for adaptive neural interfacing in complex environments, enhancing cellular monitoring and modulation.

Keywords:

magnetic actuation magnetic nanoparticles neural interfacing organoid electrophysiology soft bioelectronics

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Area of Science:

Bioelectronic systems
Neuroscience
Biomedical engineering

Background:

Current bioelectronic systems lack active positioning, limiting adaptability in complex biological environments.
Static interfaces hinder precise cellular monitoring and modulation for neuroscience and biomedical applications.

Purpose of the Study:

To introduce a flexible, magnetically actuated bioelectronic system for precise remote motion control.
To enable adaptive neural interfacing for improved cellular activity monitoring and modulation.

Main Methods:

Development of Mag-N-Probe (Magnetically guided Neural-interfacing Probe) using a pliable mesh framework with ferromagnetic nanoparticles.
Utilizing torque- and gradient force-driven magnetic actuation for controlled navigation in confined spaces.
Integration with flexible bioelectronics for real-time motion control with sub-micrometer precision.

Main Results:

Achieved centimeter-scale navigation and sub-micrometer precision for remote motion control.
Demonstrated repeated targeting of individual neurons for compartment-specific electrophysiological recordings.
Enabled conformal integration with brain organoids for reliable, multi-channel signal acquisition.

Conclusions:

Mag-N-Probe offers a versatile and scalable solution for adaptive neural interfacing.
The system supports both single-cell studies and 3D tissue environments, advancing in vitro research.
Presents promising prospects for minimally invasive in vivo neural interfacing applications.