Magnetic Field Sensors

Magnetic Field Sensors Group

About

The “Magnetic Field Sensors” group is working on frequency mixing magnetic detection of nanoparticles for biosensing application, for instance magnetic immunoassays, and on low field nuclear magnetic resonance. The aim is to establish magnetic label-based immunoassays which employ the highly specific interaction between antigenes and antibodies in conjunction with magnetic nanoparticle markers for the detection and quantification of specific biomolecules.

Research Topics

In Magnetic Particle Sensing, the magnetic response of magnetic nanoparticles is measured by Frequency Mixing Magnetic Detection.

Magnetic Particle Actuation is achieved by applying a magnetic gradient field.

A Low Field Nuclear Magnetic Resonance setup has been realized for biological imaging.

Contact

Prof. Dr. Hans-Joachim Krause

IBI-3

Building 03.6 / Room 408

+49 2461/61-2955

E-Mail
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Magnetic Particle Sensing

In magnetic particle sensing , the magnetic field response of magnetic nanoparticles is measured by means of Frequency Mixing Magnetic Detection. Sum-frequency mixing components generated upon dual-frequency magnetic excitation are selectively demodulated for immunoassay applications.

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Magnetic Particle Actuation

Magnetic particle actuation is achieved by applying a magnetic gradient field. The particles are pulled towards the highest magnetic field. A magnetic actuation setup for microrheometry has been developed for measuring mechanical properties of living cells in magnetic tweezers mode or with magnetic twisting cytometry.

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Low Field Nuclear Magnetic Resonance

A Low Field Nuclear Magnetic Resonance setup with a liquid-nitrogen cooled SQUID detector has been realized for biological imaging. Magnetic Resonance Imaging at low field has been demonstrated.

Team Members

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Former Members (Alumni)
Recent Publications

Last Modified: 18.11.2022
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