A Review on Magnetic Micro/Nanoparticles

Abstract

This review focuses on the recent advances in the preparation and application of magnetic micro/nanoparticles specially it covers (a) methods of preparation (such as by co precipitation, pyrolysis, hydrothermal, solvent thermal, sol-gel, micro-emulsion, sonochemical methods, and (b) application such as hyperthermic therapy, magnetic gene therapy, magnetic hyperthermia, diagnosis of cancer cells, magnetic separation, magnetorelaxometry, test of prothrombin time for leukemia, solid phase extraction, atherosclerosis imaging, nanomagnetic molecular sensing. KEYWORDS:This review focuses on the recent advances in the preparation.

Magnetic Nanomaterials for Magnetically-Aided Drug Delivery and Hyperthermia

“…There are numerous methods known to synthesize magnetic nanoparticles, such as mechanical milling [44], co-precipitation [45], nanoreactor/microemulsion techniques [45,46], sonochemical processing [45,46], sol-gel methods [47], flow injection [43], electrochemical production [48], supercritical fluid techniques [49,50], thermal decomposition [13][14][15][16]22,[51][52][53][54][55], hydrothermal routes [45], microwave techniques [56], spray pyrolysis [45], laser pyrolysis [45], flame spray pyrolysis [45], gas phase synthesis [45], arc discharge [57], oxidation [58,59], and microbial methods etc. [43,45,60]. Figure 1 shows a typical plot of resulting nanoparticle size distribution p(n) as a function of nucleation rate J(t) and reaction time (t) minus time of maximal nucleation (t m ), divided by the half-life time of the nucleation burst [61].…”