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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...

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Updated: Jun 25, 2026

Remote Magnetic Actuation of Micrometric Probes for in situ 3D Mapping of Bacterial Biofilm Physical Properties

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Magnetic bio-hybrid micro actuators.

David Quashie^1,2, Prateek Benhal^1,2, Zhi Chen³

¹Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Tallahassee, Florida, USA, 32310. jali@eng.famu.fsu.edu.

|March 9, 2022

Summary

This summary is machine-generated.

Magnetic bio-hybrid actuators, integrating biological components with synthetic materials, offer precise control for nanoscale applications. These devices show promise for self-repair and replication, advancing microfabrication and localization technologies.

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Area of Science:

Biomedical Engineering
Nanotechnology
Robotics

Background:

Growing research in wireless devices operating at cellular and subcellular scales.
Bio-hybrid actuators integrate biological components with synthetic materials.
Magnetic manipulation is a common control method due to precise field generation.

Purpose of the Study:

To review the theory and mechanisms of magnetic actuation for bio-hybrid devices.
To classify bio-hybrid actuators based on their organic components.
To discuss current limitations and future potential of these actuators.

Main Methods:

Review of existing literature on magnetic bio-hybrid actuators.
Analysis of magnetic actuation principles and their application.
Classification of bio-hybrid actuators by biological components.

Main Results:

Magnetic bio-hybrid actuators address challenges in small-scale fabrication, control, and localization.
These devices exhibit high efficiency, potential for self-repair, and self-replication.
Magnetically driven forces offer advantages like long-range transmission, high control, and biological safety.

Conclusions:

Magnetic bio-hybrid actuators present significant advantages over other small-scale actuators.
Future work involves coupling cells with magnetic materials for multi-functional actuators.
Further research is needed to overcome current limitations and fully realize their potential.