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Issue 3, 2012
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2, 2′-(phenylazanediyl) diacetic acid modified Fe3O4@PEI for selective removal of cadmium ions from blood

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Abstract

A water-dispersible and supermagnetic nanocomposite (PAD-PEG-Fe3O4@PEI) has been successfully synthesized using polyethylenimine (PEI, Mol MW = 10000) coated supermagnetic Fe3O4–NH2 which was modified with 2, 2′-(phenylazanediyl) diacetic acid (PAD) through the bridge of poly(ethylene glycol) (PEG, Mol MW = 2000). The average particle size of PAD-PEG-Fe3O4@PEI was determined by TEM, and was about 50 nm. From magnetic hysteresis cycles for PAD-PEG-Fe3O4@PEI at room temperature, the saturation magnetization (Ms) was shown to be 58.14 emu g−1. Inductively coupled plasma spectrometry (ICP) analysis showed that the designed magnetic nanocomposite can remove 98% and 80% of Cd2+ from water and blood, respectively.

Graphical abstract: 2, 2′-(phenylazanediyl) diacetic acid modified Fe3O4@PEI for selective removal of cadmium ions from blood

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Supplementary files

Article information


Submitted
11 Oct 2011
Accepted
04 Dec 2011
First published
21 Dec 2011

Nanoscale, 2012,4, 733-736
Article type
Communication

2, 2′-(phenylazanediyl) diacetic acid modified Fe3O4@PEI for selective removal of cadmium ions from blood

J. Jin, F. Yang, F. Zhang, W. Hu, S. Sun and J. Ma, Nanoscale, 2012, 4, 733
DOI: 10.1039/C2NR11481J

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