Iron oxide versus Fe 55Pt 45/Fe 3O 4: Improved magnetic properties of core/shell nanoparticles for biomedical applications

IEEE Transactions on Magnetics

Volumn 44, Issue 11 PART 2, 2008, Pages 4448-4451

  Varanda, L C ^a   Imaizumi, M ^b   Santos, F J ^b   Jafelicci, M ^b  

^a UNIVERSITY OF SÃO PAULO   (Brazil)

^b SÃO PAULO STATE UNIVERSITY UNESP   (Brazil)

Author keywords

Biomedical applications; Dextran coating; Iron oxide FePt core shell structure; Magnetic nanoparticles

Indexed keywords

ANNEALING; BINARY ALLOYS; COERCIVE FORCE; DEXTRAN; IRON ALLOYS; MAGNETIC NANOPARTICLES; MAGNETIZATION; MEDICAL APPLICATIONS; PLATINUM ALLOYS; SHELLS (STRUCTURES); SYNTHESIS (CHEMICAL);

BIOMEDICAL APPLICATIONS; CORE SHELL STRUCTURE; CORE/SHELL NANOPARTICLES; DEXTRAN COATING; MODIFIED POLYOL PROCESS; NANOPARTICLE SURFACE; NANOPARTICLE TOXICITY; SEED-MEDIATED GROWTH METHODS;

IRON OXIDES;

EID: 77955170640     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2008.2002250     Document Type: Article

References (17)

1. A. H. Lu, E. L. Salabas, F. Schüth, and A. R. Abadia, "Magnetic nanoparticles: Synthesis, protection, functionalization, and application", Angew. Chem. Int. Edit., vol. 46, pp. 1222-1244, 2007.
2. P. Tartaj, M. P. Morales, T. Gonzaléz-Carreño, S. Veintemillas-Verdaguer, and C. J. Serna, "Advances in magnetic nanoparticles for biotechnology applications", J. Magn. Magn. Mater., vol. 290, pp. 28-34, 2005.
3. A. K. Gupta and M. Gupta, "Synthesis and surface engineering of iron oxide nanoparticles for biomedical applications", Biomaterials, vol. 26, no. 18, pp. 3995-4021, 2005.
4. Y. P. Bao and K. M. Krishnan, "Preparation of functionalized and gold-coated cobalt nanocrystals for biomedical applications", J. Magn. Magn. Mater., vol. 293, no. 1, pp. 15-19, 2005.
5. A. K. Gupta and S. Wells, "Surface-modified superparamagnetic nanoparticles for drug delivery: Preparation, characterization, and cytotoxicity studies", IEEE Trans. Nanobiosci., vol. 3, no. 1, pp. 66-73, 2004.
6. Y. Zhang, N. Kohler, and M. Zhang, "Surface modification of superparamagnetic magnetite nanoparticles and their intracellular uptake", Biomaterials, vol. 23, no. 7, pp. 1553-1561, 2002.
7. 3O nanoparticles", NanoLett., vol. 4, no. 1, pp. 187-190, 2004.
8. L. C. Varanda and M. Jafelicci, "Self-assembled FePt nanocrystals with large coercivity: Reduction of the fcc-to-L1 ordering temperature", J. Amer. Chem. Soc, vol. 128, no. 34, pp. 11062-11066, 2006.
9. E. I. Santiago, L. C. Varanda, and H. M. Villullas, "Carbon- supported Pt-Co catalyst prepared by a modified polyol process as cathodes for PEM fuel cells", J. Phys. Chem. C, vol. 111, no. 7, pp. 3146-3151, 2007.
10. M. C. Bautista, O. Bomati-Miguel, M. P. Morales, C. J. Serna, and S. Veintemillas-Verdaguer, "Surface characterisation of dextran-coated iron oxide nanoparticles prepared by laser pyrolysis and coprecipitation", J. Magn. Magn. Mater., vol. 293, no. 1, pp. 20-27, 2005.
11. 15 ferromagnetic nanocrystals", J. Appl. Phys., vol. 101, pp. 1239181-1239185, 2007.
12. C. Liu, X. Wu, T. Klemmer, N. Sukla, and D. Weller, "Reduction of sintering during annealing of FePt nanoparticles coated with iron oxide", Chem. Mater., vol. 17, pp. 620-525, 2005.
13. S. Akiyama and Y. Tsunoda, "Magnon and magnetic structure of FePt alloys", J. Magn. Magn. Mater., vol. 310, pp. 1844-1846, 2007.
14. S. Sun, C. B. Murray, D. Weller, L. Folks, and A. Moser, "Monodispersed FePt nanoparticles and ferromagnetic FePt nanocrystal superlattices", Science, vol. 287, pp. 1989-1992, 2000.
15. K. E. Elkins, T. S. Vedantam, J. P. Liu, H. Zeng, S. Sun, Y. Ding, and Z. L. Wang, "Ultrafine FePt nanoparticles prepared by the chemical reduction method", Nano Lett., vol. 3, no. 12, pp. 1647-1649, 2003.
16. H. Zeng, J. Li, J. P. Liu, Z. L. Wang, and S. Sun, "Exchange-coupled nanocomposite magnets by nanoparticle self-assembly", Nature, vol. 420, pp. 395-398, 2002.
17. S. Sun, E. E. Fullerton, D. Weller, and C. B. Murray, "Compositionally controlled FePt nanoparticles materials", IEEE Trans. Magn., vol. 37, no. 4, pp. 1239-1243, 2001.