The progress of magnetic sensor applied in biomedicine: A review of non‐invasive techniques and sensors

Abstract

With the rapid development of sensing technology, it has attracted tremendous interests in the field of biomedicine because of its good biocompatibility, reliability, and safety. In comparison to other sensors, magnetic sensor has a broad application prospect in biomedical field due to its high sensitivity, small size, and intriguing non‐invasive detection property. The purpose of this review is to discuss the applications of magnetic sensors in the biomedical field. First, some widely used magnetic sensors are reviewed based on their working principle and characteristics. Then, the applications of magnetic sensors in biomedical field are introduced from the aspects of magnetic label‐based bioassays, detection of biological movement, and biology magnetism. Finally, the future development direction and prospect of magnetic sensors in biomedical field are prospected. This review will provide a general outlook for the applications of magnetic sensors in biomedicine.

Recent advances in magnetic nanoparticle-based microfluidic devices for the pretreatment of pathogenic bacteria

“…After bacteria–MNP complexes are separated from a sample solution, various devices, such as optical, electrochemical, and magnetoresistance sensors, can be employed to detect target bacteria [ 49 – 51 ]. Detailed detection methods have already been discussed in numerous review papers [ 52 – 55 ]. The most sensitive detection method employs optical probes, such as gold nanoparticles, fluorescent dyes, and quantum dots [ 37 , 56 , 57 ].…”

Magnetoimpedance Biosensors and Real-Time Healthcare Monitors: Progress, Opportunities, and Challenges

“…Since the turn of the 21st century, magnetic biosensor research has steadily grown year after year [ 1 , 2 , 3 , 4 , 5 , 6 ]. Magnetic phenomena such as the giant magneto-resistance effect, nuclear magnetic resonance, and superconducting quantum interference have often been proposed as the transducers of magnetic biosensors [ 2 , 7 , 8 ].…”

Traceability routes for magnetic measurements

“…Magnetic measurements are relatively common in academia and in industrial research and development, as they are widely employed for the measurement of magnetic fields and for the characterisation of the magnetic cores in sensors or electronics. In addition, they are used in applications such as earth observation [1,2], biomedicine [3,4,5] and health and safety requirements regarding exposure to electromagnetic fields [6,7,8] (The Electromagnetic Fields Directive 2013/35/EU). However, so far, the industrial and scientific communities have been unable to fully benefit from traceable and reliable measurement results because of limited access to suitable calibration facilities.…”