Direct synthesis of partially ordered tetragonally structured FePt nanoparticles by polyol method for biomedical application

International Journal of Nano Dimension

مقاله 9، دوره 2، Issue 1، آبان 2011، صفحه 61-65   

نوع مقاله: Reasearch Paper

شناسه دیجیتال (DOI): 10.7508/ijnd.2011.01.008

نویسندگان

J. Majeed¹؛ F. Syed¹؛ O. D. Jayakumar¹؛ C. Sudakar²؛ P. S. V. Mocherla²؛ M. S. R. Rao²؛ A. K. Tyagi^{* 1}

¹Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India-400085.

²Department of Physics, Indian Institute of Technology, Chennai, India- 600036.

چکیده

We report the direct soft chemical synthesis and characterization of a family of face centered cubic (fcc) and partially ordered face centered tetragonal (fct) FePt nanoparticles (NPs) suitable for biomedical applications. Both fcc and partially ordered fct-FePt NPs are synthesized by employing a simple polyol method. By using polyvinyl pyrolidone (PVP) as a stabilizer in various ratios during synthesis, fcc-FePt NPs have been converted into partially ordered fct-FePt NPs at low temperature (300^˚C) . The advantages of this process are its simplicity, the short reaction time, easy preparation and dispersibility of the NPs in aqueous media.

کلیدواژه‌ها

FePt؛ Nanopartcles؛ Ferromagnetism؛ DC magnetization؛ Transmission electron microscopy