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Barick KC, Aslam M, Prasad PV, et al. Nanoscale assembly of amine functionalized colloidal iron oxide. J Magn Magn Mater. 2009;321(10):1529-1532doi: 10.1016/j.jmmm.2009.02.080.
Barick, K. C., Aslam, M., Prasad, P. V., Dravid, V. P., & Bahadur, D. (2009). Nanoscale assembly of amine functionalized colloidal iron oxide. Journal of magnetism and magnetic materials, 321(10), 1529-1532. https://doi.org/10.1016/j.jmmm.2009.02.080
Barick, K C, et al. "Nanoscale assembly of amine functionalized colloidal iron oxide." Journal of magnetism and magnetic materials vol. 321,10 (2009): 1529-1532. doi: https://doi.org/10.1016/j.jmmm.2009.02.080
Barick KC, Aslam M, Prasad PV, Dravid VP, Bahadur D. Nanoscale assembly of amine functionalized colloidal iron oxide. J Magn Magn Mater. 2009 May;321(10):1529-1532. doi: 10.1016/j.jmmm.2009.02.080. PMID: 20160860; PMCID: PMC2673011.
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J Magn Magn Mater. 2009 May;321(10):1529-1532. doi: 10.1016/j.jmmm.2009.02.080.

Nanoscale assembly of amine functionalized colloidal iron oxide.

Journal of magnetism and magnetic materials

K C Barick, M Aslam, Pottumarthi V Prasad, Vinayak P Dravid, Dhirendra Bahadur

Affiliations

  1. Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai 400076, India.

PMID: 20160860 PMCID: PMC2673011 DOI: 10.1016/j.jmmm.2009.02.080

Abstract

We demonstrate a single-step facile approach for highly water stable assembly of amine-functionalized Fe(3)O(4) nanoparticles using thermal decomposition of Fe-chloride precursors in ethylene glycol medium in the presence of ethylenediamine. The average size of nanoassemblies is 40±1 nm, wherein the individual nanoparticles are about 6 nm. Amine functionalized properties are evident from FTIR, thermal and elemental analysis. The saturation magnetization and spin-echo r(2) of the nanoassemblies were measured to be 64.3 emu/g and 314.6 mM(-1)s(-1), respectively. The higher value of relaxivity ratio (r(2)/r(1)=143) indicates that nanoassemblies are a promising high efficiency T2 contrast agent platform.

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