Design and simulation of magnetic nanoparticles detector based on the nonlinear magnetization

Abstract

Magnetic nanoparticles have been widely used in the field of biotechnology and medicine, which has a great importance to precise and quantitative detection. This paper introduces a magnetic nanoparticles detection device of low cost, high sensitivity and real-time, which is verified by simulation. When the diameter of the magnetic nanoparticles is in the range of 50nm ~ 200nm, the peak of the induced voltage is in the level of millivolt (0.3mV ~ 20mV), and the larger the diameter of the magnetic nanoparticles is, the greater the induced signal strength will be.