Magnetic biosensors: Modelling and simulation

Abstract

In the past few years, magnetoelectronics has emerged as a promising new platform technology in various biosensors for detection, identification, localisation and manipulation of a wide spectrum of biological, physical and chemical agents. The methods are based on the exposure of the magnetic field of a magnetically labelled biomolecule interacting with a complementary biomolecule bound to a magnetic field sensor. This Review presents various schemes of magnetic biosensor techniques from both simulation and modelling as well as analytical and numerical analysis points of view, and the performance variations under magnetic fields at steady and nonstationary states. This is followed by magnetic sensors modelling and simulations using advanced Multiphysics modelling software (e.g. Finite Element Method (FEM) etc.) and home-made developed tools. Furthermore, outlook and future directions of modelling and simulations of magnetic biosensors in different technologies and materials are critically discussed.

Design and Implementation of a 3D Printed Sensory Ball for Wireless Water Flow Monitoring

“…In this project, a spherical outer case is preferred to sense fluid mobility. The crux of the matter lies here: the outer case needs to be assembled as rigid as possible to keep the water out but at the same time, be able to reopen easily to make maintenance possible [10][11][12][13][14]. Here we seek to create another way of locking that is low-cost, standard, repeatable and tight.…”

Magnetic and Radar Sensing for Multimodal Remote Health Monitoring

“…It was reported in our previous work [13], that magnetometer and radar produced many of the most robust features when searching for optimal feature combinations by applying sequential forward selection (SFS) on the feature set including those extracted from all the inertial sensors and radar. Magnetometers are easily miniaturised and integrated in common wearable sensors and objects [14], [15]. They enable to measure small changes in the magnetic field induced by the presence of human personnel, from relatively large variations due to daily activities as in our work, to the very small variations induced by musculoskeletal and cerebral activity [16].…”

Air Quality Monitoring using Portable Multi-Sensory Module for Neurological Disease Prevention

“…They are expensive so cannot be widely used in everyday life. Compared with the traditional method, the system using sensors to monitor air quality is more efficient, simple in circuit design and has wide applicability [11][12][13][14][15].…”