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Related Experiment Video

Updated: May 25, 2026

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System
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Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System

Published on: June 13, 2010

An integrated open-cavity system for magnetic bead separation and manipulation.

Faisal T Abu-Nimeh1, Fathi M Salem

  • 1Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA. asd1815@egr.msu.edu

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|January 19, 2012
PubMed
Summary

We developed a low-cost system to automate magnetic bead manipulation for biomedical assays. This integrated coil-array system enables precise control and separation of bio-materials.

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Area of Science:

  • Biomedical Engineering
  • Microfluidics
  • Nanotechnology

Background:

  • Superparamagnetic beads are essential tools in biomedical assays for manipulating bio-materials.
  • Existing methods for magnetic bead manipulation can be complex and costly.

Purpose of the Study:

  • To present a low-cost, integrated system for automated magnetic bead manipulation and separation.
  • To enable precise control of individual or multiple magnetic beads.

Main Methods:

  • Design and fabrication of an 8x8 coil-array using a bulk 0.5 μm process.
  • Development of a driver DC current source supporting 8 levels up to 1.5 mA.
  • Integration of coils (30 μm x 30 μm) for precise bead control.

Main Results:

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Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers
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Last Updated: May 25, 2026

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System
06:58

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System

Published on: June 13, 2010

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries
11:42

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries

Published on: January 28, 2018

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers
12:37

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Published on: September 4, 2015

  • Demonstration of automated manipulation and separation of magnetic beads.
  • System operates with a total power consumption of 9 mW.
  • The integrated system occupies a compact area of 248 μm x 248 μm.

Conclusions:

  • The developed system offers a cost-effective solution for automated magnetic bead handling in biomedical applications.
  • The precise control capabilities of the coil-array system can enhance various bio-assays.
  • This technology has the potential to streamline complex laboratory procedures.