Table 4.

Practical aspects of coprecipitation, thermal decomposition and microemulsion synthesis methods for the obtainment of iron oxide nanoparticles.

Method	Difficulty	Conditions of Environment	Reaction Temperature (°C)	Reaction Time	Size Distribuion	Control of Shape	Yield
Coprecipitation	Simple	With or without oxygen-fee atmosphere	20–90	Minutes or hours	Relatively restricted	Medium	Very high
Theramal decomposition	Complex	Inert environment	100–320	Hours or days	Very restricted	Very high	Very high
Microemulsion	Complex	Normal conditions	20–50	Hours	Relatively restricted	High	Low