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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/1145

Title: Nanoscale assembly of amine-functionalized colloidal iron oxide
Authors: BARICK, KC
ASLAM, M
PRASAD, PV
DRAVID, VP
BAHADUR, D
Keywords: magnetic nanoparticles
contrast agents
mri
spheres
Issue Date: 2009
Publisher: ELSEVIER SCIENCE BV
Citation: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,321(10)1529-1532
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 perpendicular to 1 nm, wherein the individual nanoparticles are about 6nm. Amine-functionalized properties are evident from Fourier transform infrared spectrometer (FTIR), thermal and elemental analyses. The saturation magnetization and spin-echo r(2) of the nanoassemblies were measured to be 64.3emu/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. & 2009 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jmmm.2009.02.080
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14662
http://hdl.handle.net/100/1145
ISSN: 0304-8853
Appears in Collections:Proceedings papers

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