Table 1.

Different synthetic methods and the characteristics of the products obtained.

Method	Size	Morphology	Magnetization (Emu/g)	Ligand	Surface Groups Used	Supplier	Photos	Reference
Co-precipitation	30–1000 nm	Roughly spherical	-	Dextran	−OH	Miltenyi biotec (MACS)	(A)	[34,35]
	100 nm	Irregular shape	-	BSA	−NH2−COOH	Veridex Ferrofluid™	(B)	[29]
	1.0/2.8/4.5 μm	Spherical	10.8–23.5	Polymer	−NH2	InvitrogenTM Dynal	(C)	[36]
Thermal decomposition	20.3 ± 1.5 nm	Spherical	85.8	PEG	−COOH	N/A	(D)	[37]
	30 nm	Spherical	-	ABC triblock copolymer	−COOH	N/A	(E)	[38]
Solvothermal	80 nm	Spherical nanocluster	80	leukocyte membrane	Hydro-phobic inter-action	N/A	(F)	[39]
	100–300 nm	Spherical nanocluster	58.48	Silica	−OH	AMO LIFESCIENCE Inc., Korea	(G)	[40]
Microemulsion	10 nm	Spherical	33.2	Oleyla-mine	−NH2	N/A	(H)	[41]

Picture (C) reprinted with permission from [36]; Picture (D) reprinted with permission from [37]; Picture (E) reprinted with permission from [38]; Picture (F) reprinted with permission from [39]; Picture (G) reprinted with permission from [40]; Picture (H) reprinted with permission from [41].