Fast synthesis of dopamine-coated Fe3O4 nanoparticles through ligand-exchange method

A fast approach was described for the synthesis of water-dispersible monodisperse dopamine-coated Fe3O4 nanoparticles (DA-Fe3O4) with uniform size and shape via ligand-exchange of oleic acid on Fe3O4 using only 2min. The prepared DA-Fe3O4 nanoparticles were characterized by transmission electron mic...

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Bibliographic Details
Published in:Chinese chemical letters 2012-09, Vol.23 (9), p.1099-1102
Main Authors: An, Peng, Zuo, Fang, Wu, Yuan Peng, Zhang, Jun Hua, Zheng, Zhao Hui, Ding, Xiao Bin, Peng, Yu Xing
Format: Article
Language:English
Subjects:
Dopamine
Fe3O4
Ligand-exchange
Magnetic nanoparticles
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Summary:A fast approach was described for the synthesis of water-dispersible monodisperse dopamine-coated Fe3O4 nanoparticles (DA-Fe3O4) with uniform size and shape via ligand-exchange of oleic acid on Fe3O4 using only 2min. The prepared DA-Fe3O4 nanoparticles were characterized by transmission electron microscopy, Fourier transform infrared spectrometry, and vibrating sample magnetometer. The results indicated that the resulting DA-Fe3O4 nanoparticles had an average diameter of about 19.2nm. The magnetic saturation value of the prepared DA-Fe3O4 nanoparticles was determined to be 72.87emu/g, which indicating a well-established superparamagnetic property.
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2012.06.039