Record Details

<strong>Functionalization of Fe3O4 nanoparticles</strong>

Online Publishing @ NISCAIR

View Archive Info
 
 
Field Value
 
Authentication Code dc
 
Title Statement <strong>Functionalization of Fe3O4 nanoparticles</strong>
 
Added Entry - Uncontrolled Name Kale, Sonali Kiran; Pimpri Chinchwad College of Engineering, Nigdi, Pune-411 044
 
Uncontrolled Index Term Fe3O4 nanoparticles ;Monodispersity; Silica coating
 
Summary, etc. Magnetic iron oxide (Fe<sub>3</sub>O<sub>4</sub>) nanoparticles are used as ferrofluids and in biomedical field as diagnostic and therapeutic tools, contrast agents in magnetic resonance imaging, drug delivery to tumor cells, cancer treatment by hyperthermia. These applications usually require uniform, chemically stable and monodispersed particles in liquid media. As a result of anisotropic dipolar attraction, nanoparticles of iron oxide aggregate into large clusters which may lead to the failure of their properties. Surface modification is often required to prevent such aggregation of nanoparticles. It has been already proved that aggregation can be avoided by surface modification of Fe<sub>3</sub>O<sub>4</sub> nanoparticles using silica. The present work seeks the preparation and characterizations of monodispersed magnetic nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) as well as silica coating. Fe<sub>3</sub>O<sub>4</sub> nanoparticles have been synthesized using thermal decomposition route. The reaction involves high temperature (230 °C) heating of iron acetylacetonate Fe(acac)<sub>3</sub> in the presence of reducing agent and surfactant. Structural characterizations and surface chemistry of nanoparticles have been analyzed using X-ray diffraction, transmission electron microscopy and Fourier transform infrared spectroscopy. Further work has been extended by coating as prepared Fe<sub>3</sub>O<sub>4</sub> nanoparticles with silica. It reveals from microscopic analysis that each silica sphere contains several monodisperse Fe<sub>3</sub>O<sub>4</sub> NP.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2018-09-17 10:40:25
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJPAP/article/view/15729
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 56, ##issue.no## 9 (2018): Indian Journal of Pure & Applied Physics
 
Language Note en
 
Terms Governing Use and Reproduction Note Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India © 2015. The Council of Scientific &amp; Industrial Research, New Delhi.