Progress on applications of magnetic nanoparticles in separation and detection

The applications of magnetic nanoparticles in biotechnology and environmental,and so on,has attracted considerable attention in recent years.The magnetic nanoparticles with suitable surface modification are capable of binding molecules selectively.Magnetic nanoparticles and the magnetic separations,magnetic detections have advantages of rapidity,convenience and high selectivity.In this review,the applications of magnetic nanoparticles in separation(including ion exchange and adsorbing organic compounds in water treatment,barrier separation,bioseparation,and so on) and detection(including water quality detection,bioassay,food safety detection) were reviewed.This paper have guiding significance for the construction of multifunctional magnetic nanoparticles and their applications in separation and detection.