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Updated: Jun 13, 2025

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

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Published on: May 2, 2014

Magnetic Torque-Driven All-Terrain Microrobots.

Qiong Wang¹, Zhuhua Zhang¹, Yuhua Wu¹

¹State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.

Small (Weinheim an Der Bergstrasse, Germany)

|September 10, 2024

Summary

This summary is machine-generated.

This study presents a magnetic torque-driven all-terrain multiped microrobot (MTMR) capable of diverse locomotion. The versatile microrobot navigates challenging terrains and confined spaces for medical applications.

Keywords:

all‐terrain magnetic torque microrobots multimodal locomotion rotate

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Area of Science:

Robotics
Biomedical Engineering
Materials Science

Background:

Conventional microrobots face limitations in adaptability and operational challenges in variable environments.
All-terrain microrobots offer superior maneuverability in complex medical environments.

Purpose of the Study:

To introduce a novel magnetic torque-driven all-terrain multiped microrobot (MTMR).
To demonstrate the MTMR's adaptability and versatility in diverse terrains and confined spaces for medical applications.

Main Methods:

Utilized magnetic torque-driven actuation.
Coupled structural symmetries with rotating and oscillating magnetic fields to achieve multiple locomotion modes (rolling, tumbling, walking, jumping).
Evaluated navigation capabilities on various terrains and in confined spaces.

Main Results:

The MTMR demonstrated multiple locomotion modes, including rolling, tumbling, walking, and jumping.
Successfully navigated steep slopes (up to 75°), gaps (2x body height), narrow slits (0.1 body length), and low tunnels (0.25 body length).
Showcased potential for minimally invasive procedures (hemostasis, thrombus removal) and in-situ sensing with parallel task implementation.

Conclusions:

The developed MTMR exhibits significant adaptability and versatility for interventional medicine.
Magnetic torque-driven microrobots offer a promising foundation for advanced medical applications.
The MTMR's capabilities support accurate cargo manipulation and real-time environmental monitoring.