One-Step Method for Preparation of Magnetic Nanoparticles Coated with Chitosan

Table 2

Results of magnetic characterization of nanoparticles obtained at 50^°C without chitosan and with different chitosan concentrations.

Chitosan content in reaction mixture (w/v %)	Magnetization at 20 kOe (emu/g)	Remnant magnetization (emu/g)	Coercivity (Oe)
0	70.13 ± 0.01	2.33 ± 1.32	26.85 ± 13.62
0.125	66.35 ± 2.10	2.29 ± 0.41	27.09 ± 4.24
0.250	61.57 ± 5.04	4.61 ± 2.03	64.39 ± 41.98
0.500	45.07 ± 3.73	3.10 ± 0.29	40.91 ± 0.49