Surface Modification of Magnetic Nanoparticles and Their Applications

Dear Colleagues,  

In recent decades, magnetic nanoparticles have shown significant potential in many applications because of their unique physical and chemical properties. Their outstanding magnetic properties, in conjunction with facile synthesis and surface modification methods, lead to broadly successful applications of these functional nanoparticles. For example, homogeneous catalysts are usually immobilized with magnetic nanoparticles because of their simple separation for reuse, while magnetic heterostructures exhibit higher efficiency in heterogeneous catalysis. Moreover, these nanoparticles are employed in the magnetical separation of various pollutants. Magnetic nanoparticles are also widely used as contrast agents for magnetic resonance imaging, while their capability to generate heat under external alternating magnetic filed causes them to kill cancer cells in magnetic hyperthermia. In addition, magnetic iron oxide nanoparticles are used as an immunoadjuvant in cancer immunotherapy.

In this special issue, we focus on the surface chemistry of magnetic nanoparticles in order to produce functional magnetic systems and their successful validation in different fields. In particular, i) the development of novel synthetic routes for the production of various magnetic nanostructures with a tunable size, shape, and composition, ii) different surface modification approaches such as ligand exchange, polymer coating, and silica coating for as-synthesized nanoparticles to obtain nanoparticles with better colloidal stability and tunable surface chemistry, iii) further exploitation of desired conjugation strategies for specific applications, iv) the effect of surface chemistry on magnetic properties followed by their efficiency in the applications, and v) the successful applications of designed magnetic nanosystems in diverse fields such as bioimaging, biosensing, drug delivery, therapy, catalysis, and water purification are covered.

Dr. Pradip Das
Guest Editor

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