Abstract
Magnetic sensing is widely used in various modern bio-medical devices since many physiological functions (e.g., nerve impulses) generate electrical currents that create magnetic field [24]. Monitoring such signals by detecting magnetic field is less invasive and more reliable than implanting electrodes to sense the electronic signals. Generally, magnetic sensors can be utilized to detect the changes or disturbances of magnetic field, i.e., the strength and/or direction of magnetic flux. For example, magnetic sensors with high sensitivity have been widely used in heart disease monitor by detecting the bio-magnetic signals from heart (known as magnetocardiography, or MCG) [8]. The magnetic sensors in bio-medical applications are required to detect the low-field signals that are much lower than the Earth’s magnetic field ( < 0. 5 Oe) [17].
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Acknowledgments
This work is supported in part by NSF grants CNS-1253424 (CAREER) and ECCS-1202225.
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Chen, Y., Li, H., Sun, Z. (2014). Spintronic Memristor as Interface Between DNA and Solid State Devices. In: Tetzlaff, R. (eds) Memristors and Memristive Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9068-5_9
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