Magnetic Nanoparticles in Biomedical Applications

Abstract

Nanomedicine introduced various novel materials for the delivery of drugs as well as applications in CT scans and MRI, PET, and CT, where its legitimacy is directly proportional to its molecular signatures. Magnetic nanoparticles (MNPs) have now been believed to have magical properties, which have gained a wide interest present time and have impacted nanomedicine biosensing and analytical chemistry fields. The modification and functionalization of MNPs with various kinds of ligands of biomolecules have already been exploited. The application of magnetic particles can be easily observed in the microscopic manipulation of Nanosized and micro-objects. Manipulating these particles needs immense care, especially on their immunogenicity and biocompatibility, as these are applied in procedures covering from catalysis to delivery of drugs and healing. Appropriate layering and also particle coating with suitable agents can alleviate this hurdle. This chapter describes the general characteristics of MNPs, information regarding their physical and chemical designs, and various factors that are to be taken care of when dealing with the preparation of "MNPs" for biomedical applications. MNPs Find their profound use in theranostics platforms for diagnosis and as an 206interventional modality in disease management. Nanocomposites, such as magnetic liposomes, magnetic hydrogels, and magnetic dendrimers, have improved the premature burst release of loaded drugs and increased targeting efficacy. Even the most dreaded disease, cancer, could be fought by making use of the principles of 'Magnetic hyperthermia-assisted apoptosis and necrosis. These potent magnetically driven delivery systems can facilitate quick and versatile site-specific delivery of biotherapeutic interventions, which include therapeutic viruses, cell-based therapies, and nucleic acid and protein delivery. Many stringent maladies could be grappled with the synergistic effect of localized magnetic hyperthermia and can pinpoint targeted drug delivery to diseased sites, entitling it as a cutting-edge technology.