Magnetic drug delivery is a novel approach to delivery drug using engineered ’smart’ micro carriers which appears to overcome a number of limitations facing current methods of delivering medicines. These microcarriers include magnetic microspheres, magnetic liposomes, magnetic nanoparticles, magnetic resealed erythrocytes, magnetic emulsion etc. This review paper will summarize about mechanism of magnetic targeted drug delivery, magnetic carriers, benefits and drawbacks of magnetic targeting, characterization and application of magnetism in targeted drug delivery and some other field. They offer high potential for numerous biomedical applications, such as cell separation, automated DNA extraction, gene targeting, drug delivery, MRI and hyperthermia.
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