Ultrasensitive Magnetic Field Sensors for Biomedical Applications.

Author: Murzin D1, Mapps DJ2, Levada K1, Belyaev V1, Omelyanchik A1, Panina L1,3, Rodionova V1
1Institute of Physics, Mathematics and Information Technology, Immanuel Kant Baltic Federal University, 236041 Kaliningrad, Russia.
2Faculty of Science and Engineering, University of Plymouth, PL4 8AA Plymouth, UK.
3National University of Science and Technology, MISiS, 119049 Moscow, Russia.
Conference/Journal: Sensors (Basel).
Date published: 2020 Mar 11
Other: Volume ID: 20 , Issue ID: 6 , Special Notes: doi: 10.3390/s20061569. , Word Count: 157

The development of magnetic field sensors for biomedical applications primarily focuses on equivalent magnetic noise reduction or overall design improvement in order to make them smaller and cheaper while keeping the required values of a limit of detection. One of the cutting-edge topics today is the use of magnetic field sensors for applications such as magnetocardiography, magnetotomography, magnetomyography, magnetoneurography, or their application in point-of-care devices. This introductory review focuses on modern magnetic field sensors suitable for biomedicine applications from a physical point of view and provides an overview of recent studies in this field. Types of magnetic field sensors include direct current superconducting quantum interference devices, search coil, fluxgate, magnetoelectric, giant magneto-impedance, anisotropic/giant/tunneling magnetoresistance, optically pumped, cavity optomechanical, Hall effect, magnetoelastic, spin wave interferometry, and those based on the behavior of nitrogen-vacancy centers in the atomic lattice of diamond.

KEYWORDS: biomagnetic fields; biosensors; diagnosis; magnetic field sensors; noninvasive medical procedures; therapeutic application

PMID: 32168981 DOI: 10.3390/s20061569