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The 2-theta angle values and crystallite sizes of iron oxide NPs coated with surface PEG and chitosan. The average crystallite sizes of magnetite NPs with different coatings were calculated according to Scherrer’s equation.
| Samples | 2-Theta Angle Values | Crystallite Size | ||||
|---|---|---|---|---|---|---|
| Fe3O4@PEG | 30.30° | 35.66° | 43.29° | 57.17° | 62.81° | 25.30 nm |
| Fe3O4@Chitosan | 30.37° | 35.74° | 43.45° | 57.5° | 62.83° | 25.10 nm |
