“…or with inorganic materials (silica, 42,43 metals, 44 metal oxides or suldes 45 ) are the most common in order to obtain soluble MNPs. Other techniques for the preparation of soluble or insoluble MNPs include coprecipitation, 46 synthesis in reverse micelles, 47 sonolysis, 48 electrochemical deposition, 49 mechanochemical dispersion, 50 solution plasma 51 and sol-gel processes, 52 arc discharge, 53 spray 54 and laser 55 pyrolysis, ow injection synthesis, 56 thermal decomposition, 57 hydrothermal, 58,59 microwave 60 and microwave solvothermal, 61 combustion synthesis, 62 high-temperature annealing 63 and other high temperature syntheses, 64 micro- 65 and nanoreactors such as protein cages, 66 vesicles, 67 and microemulsions. 68 In terms of the advantages and disadvantages for preparing iron oxide nanoparticles (IONPs), regarding their size and morphology control, thermal decomposition by the hydrothermal synthetic route seems to be the optimal method.…”