Highly water-soluble nanocrystal powders of magnetite and maghemite coated with gluconic acid: Preparation, structure characterization, and surface coordination.

@article{Wei2011HighlyWN,
  title={Highly water-soluble nanocrystal powders of magnetite and maghemite coated with gluconic acid: Preparation, structure characterization, and surface coordination.},
  author={Xiucheng Wei and Zhiwei Wei and Liping Zhang and Yingqi Liu and Deyan He},
  journal={Journal of colloid and interface science},
  year={2011},
  volume={354 1},
  pages={76-81}
}
A simple method was developed to prepare highly water-soluble nanocrystal powders of magnetic iron oxides with different oxidation degree from magnetite (Fe(3)O(4)) to maghemite (γ-Fe(2)O(3)) coated with gluconic acid (GLA). X-ray diffraction and transmission electron microscopy measurements show that the products have a narrow size distribution, and the cores are inverse spinel iron oxides and completely crystallized. Vibrating sample magnetometry measurements reveal that all the samples… CONTINUE READING