Nanomedicine is defined as the monitoring, repair, construction, and control of human biological systems at the
molecular level using engineered nanodevices and nanostructures.
Polyacrylonitrile (PAN) solution containing the iron oxide precursor iron (III) was electrospun and thermally treated
to produce electrically conducting, magnetic carbon nanofiber mats with hierarchical pore structures. This paper
discusses the synthesis of magnetite (Fe3O4) nanoparticles with mean crystallite size of 10 nm with polyacrylonitrile
(PAN) as the protecting agent, creating nanofiber.
The morphology and material properties of the resulting multifunctional nanofiber including the surface area were
examined using various characterization techniques. Optical microscopy images show that uniform fibers were
produced with a fiber diameter of ~600 nm, and this uniform fiber morphology is maintained after graphitization
with a fiber diameter of ~330 nm. X-ray diffraction (XRD) studies reveal the size of Fe3O4 crystals. A combination
of XRD and electron microscopy experiments reveals the formation of pores with graphitic nanoparticles in the walls
as well as the formation of magnetite nanoparticles distributed throughout the fibers.
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