2 - Separation and isolation of magnetic nanomaterials

Abstract

In recent years, there has been considerable attention in unique materials in the field of nanotechnology. Magnetic nanoparticles (MNPs) relate to the family of nanotechnology with an impression in areas of nanomedicine, biosensing, and analytical chemistry. MNPs that exhibit super magnetic and catalytic features have been extensively recognized as one of the greatest talented nanoagents used in various fields. Although many articles have been published to explain the synthesis of MNPs, a small number of useful methods are generally used for their separation and isolation. Because of their inapproachable physical and chemical features, MNPs are interesting applicants for biomedical usages and analytical isolations. In this chapter, we describe the isolation methods that have been primarily exploited for this aim. It is the usage of a practical magnetics flux or field gradients such as magnetic field-flow fractionation and high-gradient magnetic separation that allows isolations for MNPs. Extra methods have been discovered for employing particles in microfluidic channels or mesoporous membranes. Additional improvement of these methods and novel experimental techniques for isolation and examination of nanoparticles with magnetic features is essential to permit the valuable exploit of these, chiefly in the medical fields.