Synthesis of Polymer-coated Magnetic Nanoparticles (original) (raw)
2005, T. Dey, C. J. O’Connor (2005). Synthesis of Polymer-coated Magnetic Nanoparticles. Proc. NSTI Nanotech. 2, 13-16.
ATRP (atom transfer radical polymerization) approach was employed to synthesis polymer-coated magnetite nanoparticles with an average diameter of 7.1 nm and of narrow size distribution, followed by various characterization techniques like Transmission Electron Microscopy (TEM), Ultraviolet-Visible spectroscopy (UV-vis), Fourier Transform Infrared spectroscopy (FTIR) and Atomic Force Microscopy (AFM). The challenge was to obtain a thin shell and particles in an unagglomerated state. Several factors like presence/choice of solvent, monomer-to-initiator concentration and structure of initiator were found to play a key role in this study. Attempts have been made to tailor the polymer shells by end-functionalization. This work has an enormous biomedical application potential.
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