Abstract
Fe 3O 4 magnetic nanoparticles were prepared by the aqueous co-precipitation of FeCl 3·6H 2O and FeC1 2·4H 2O with addition of ammonium hydroxide. The conditions for the preparation of Fe 3O 4 magnetic nanoparticles were optimized, and Fe 3O 4 magnetic nanoparticles obtained were characterized systematically by means of transmission electron microscope (TEM), dynamic laser scattering analyzer (DLS) and X-ray diffraction (XRD). The results revealed that the magnetic nanoparticles were cubic shaped and dispersive, with narrow size distribution and average diameter of 11.4 nm. It was found that the homogeneous variation of pH value in the solution via the control on the dropping rate of aqueous ammonia played a critical role in size distribution. The magnetic response of the product in the magnetic field was also analyzed and evaluated carefully. A 32.6 mT magnetic field which is produced by four ferromagnets was found to be sufficient to excite the dipole moments of 0.05 g Fe 3O 4 powder 2 cm far away from the ferromagnets. In conclusion, the Fe 3O 4 magnetic nanoparticles with excellent properties were competent for the magnetic carriers of targeted-drug in future application.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
