相关实验视频

Updated: May 2, 2026

Gold Nanorod-assisted Optical Stimulation of Neuronal Cells

Gold Nanorod-assisted Optical Stimulation of Neuronal Cells

Published on: April 27, 2015

在磁电膜表面上无线非共振刺激神经元

Asli Aydin^1,2, Ali Jahanshahi^2,3, Pouria Esmaeili-Dokht¹

¹Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany.

Science advances

|October 17, 2025

概括

这项研究引入了毫米级磁电 (ME) 膜,用于无线神经刺激,由低频磁场提供动力. 这种方法为治疗神经系统疾病提供了一个有希望的,最少的侵入性技术.

科学领域:

生物医学工程生物医学工程
神经科学是一个神经科学.
材料科学材料科学材料科学

背景情况:

无线神经接口对于神经疾病的微创治疗至关重要.
磁力驱动系统对于深度大脑刺激是有效的,但由于高频场而面临安全问题.
现有的方法需要高频电磁场,这限制了安全实施.

研究的目的:

展示毫米级磁电 (ME) 片作为无线神经刺激的直接神经接口.
在非共振模式 (10 Hz) 中研究由静态磁场和交替磁场驱动的ME膜.
为了探索一种新的,更安全的无线神经刺激技术.

主要方法:

在低频磁场下研究了ME膜的电潜趋势.
在实验室中利用初级神经元的成像来证明神经刺激.
通过电容式充电注入机制检查的神经刺激.
分析了电极化方向对神经元-ME接口的影响.

主要成果:

通过使用由低频 (10 Hz) 磁场驱动的ME膜成功证明了无线神经刺激.
展示了用于神经激活的电容式充电注入机制.
确定了电极化方向作为直接神经元-ME接口的关键设计参数.
验证了基于薄膜的神经刺激的ME非共振电源模式.

结论:

毫米尺度磁电膜为微创无线神经刺激提供了一个有前途的平台.
使用低频磁场的非共振电源为高频系统提供了更安全的替代方案.
这项技术有可能推进神经系统疾病的治疗.

更多相关视频

External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures

External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures

Published on: May 7, 2017

Author Spotlight: Low-Cost Electroencephalographic Recording System Combined with a Millimeter-Sized Coil to Transcranially Stimulate the Mouse Brain In Vivo

Author Spotlight: Low-Cost Electroencephalographic Recording System Combined with a Millimeter-Sized Coil to Transcranially Stimulate the Mouse Brain In Vivo

Published on: May 26, 2023

相关概念视频

Atomic Nuclei: Nuclear Relaxation Processes

Atomic Nuclei: Nuclear Relaxation Processes

In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis, the precessing magnetic moments are randomly oriented around the z-axis.

Magnetic Field Due To A Thin Straight Wire

Magnetic Field Due To A Thin Straight Wire

Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.

Magnetic Force

Magnetic Force

In addition to the electric forces between electric charges, moving electric charges exert magnetic forces on each other. A magnetic field is created by a moving charge or a group of moving charges known as the electric current. A magnetic force is experienced by a second current or moving charge in response to this magnetic field. Fundamentally, interactions between moving electrons in the atoms of two bodies produce magnetic forces between them.
The magnetic force acting on a moving charge...