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Related Experiment Video

Updated: Mar 4, 2026

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System
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Continuous Coagulation Monitoring in Human Blood Samples via Magnetic Particle Spectroscopy.

Maria-Josephina Buhné1, Justin Ackers2, Mandy Ahlborg2

  • 1Institute of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Luebeck, Germany.

International Journal of Nanomedicine
|March 3, 2026
PubMed
Summary
This summary is machine-generated.

Magnetic Particle Spectroscopy (MPS) can continuously monitor blood coagulation in real time using iron oxide nanoparticles. This pilot study demonstrates MPS

Keywords:
blood coagulationmagnetic particle imagingnanomedicinenanoparticles

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Medical Diagnostics

Background:

  • Magnetic Particle Imaging (MPI) is a radiation-free imaging technique utilizing iron oxide nanoparticles.
  • Magnetic Particle Spectroscopy (MPS), a non-imaging technique, offers sensitive analytics of magnetic nanoparticles.
  • Clinical applications of MPI are emerging with approved tracers like Resotran and human-scale scanners.

Purpose of the Study:

  • To investigate the potential of MPS for real-time monitoring of human blood coagulation.
  • To assess the feasibility of using MPS for continuous coagulation analysis.

Main Methods:

  • Blood samples from five volunteers were analyzed using a custom-built MPS system.
  • Resotran, a commercial MRI contrast agent, was added to blood samples.
  • Signal dynamics were monitored for 45 minutes under varying conditions, including anticoagulants and mechanical stress, with temperature control.

Main Results:

  • A time-dependent signal decrease was observed in Resotran-containing blood samples.
  • Anticoagulants (EDTA, Citrate, Heparin) influenced the signal decay rate.
  • Mechanical stress also induced signal decay, correlating MPS signal changes with blood coagulation.

Conclusions:

  • Continuous monitoring of human blood coagulation using MPS is feasible.
  • MPS offers a promising approach for real-time, bedside coagulation monitoring in clinical settings.