A sonochemical approach to the direct surface functionalization of superparamagnetic iron oxide nanoparticles with (3-aminopropyl)triethoxysilane

Sodipo, Bashiru Kayode and Abdul Aziz, Azlan (2014) A sonochemical approach to the direct surface functionalization of superparamagnetic iron oxide nanoparticles with (3-aminopropyl)triethoxysilane. Journal of Nanotechnology, 2014 (5). pp. 1472-1476. ISSN 1687-9503

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Abstract

We report a sonochemical method of functionalizing superparamagnetic iron oxide nanoparticles (SPION) with (3-aminopropyl)triethoxysilane (APTES). Mechanical stirring, localized hot spots and other unique conditions generated by an acoustic cavitation (sonochemical) process were found to induce a rapid silanization reaction between SPION and APTES. FTIR, XPS and XRD measurements were used to demonstrate the grafting of APTES on SPION. Compared to what was reported in literature, the results showed that the silanization reaction time was greatly minimized. More importantly, the product displayed superparamagnetic behaviour at room temperature with a more than 20% higher saturation magnetization.

Item Type:	Article
Subjects:	R Medicine > R Medicine (General) > R735-854 Medical education. Medical schools. Research
Divisions:	Institut Penyelidikan Perubatan Molekul (Institute for Research in Molecular Medicine INFORMM) > Article
Depositing User:	Mr Noorazilan Noordin
Date Deposited:	03 Jan 2018 04:54
Last Modified:	03 Jan 2018 04:54
URI:	http://eprints.usm.my/id/eprint/38196

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