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3D-printed microfluidic integrated magnetic robot for biofluid analysis.

Yunfan Li1, Peilong Li1, Jiajie Zhan1

  • 1School of Power and Mechanical Engineering, Wuhan University, Wuhan, Hubei, 430072, China.

Biosensors & Bioelectronics
|November 3, 2025
PubMed
Summary
This summary is machine-generated.

A 3D-printed magnetic robot autonomously processes biofluids using integrated microfluidics. This innovative device offers wireless control for tasks like drug delivery and diagnostics, advancing automated microfluidic systems.

Keywords:
3D printingBiofluid analysisMagnetic robotMicrofluidic

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Area of Science:

  • Biomedical Engineering
  • Microfluidics
  • Robotics

Background:

  • Conventional microfluidic systems face challenges in fabrication, fluid control, and automation.
  • There is a need for advanced platforms for autonomous biofluid processing in diagnostics and biosensing.

Purpose of the Study:

  • To develop a 3D-printed microfluidic integrated magnetic robot for autonomous biofluid processing.
  • To overcome limitations of existing microfluidic platforms through additive manufacturing and integrated functionalities.

Main Methods:

  • Utilized additive manufacturing (3D printing) to create a monolithic microfluidic device.
  • Integrated a unidirectional valve-channel, pump microcavity, and conductive magnetic diaphragm.
  • Employed magnetic actuation for locomotion and fluid pumping, with piezoresistive self-sensing capabilities.

Main Results:

  • Achieved magnetically actuated locomotion up to 2.45 mm/s and high-throughput fluid pumping (685 μL/min).
  • Demonstrated sensitive piezoresistive self-sensing (59.95 MPa⁻¹) for distinguishing operational status.
  • Successfully performed wireless drive-sensing tasks: self-assembly, fluid transport, drug delivery, and biofluid sampling.

Conclusions:

  • The 3D-printed magnetic robot enables autonomous, intelligent, and high-performance microfluidic biofluid analysis.
  • The device exhibits excellent biocompatibility, suggesting potential for in vivo applications.
  • This work represents a significant advancement in automated microfluidic systems for biosensing and diagnostics.