Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-27T01:57:35.519Z Has data issue: false hasContentIssue false
  • English
  • Français

A Comparative Study of Characteristics of Ferrogels Prepared using Coated and Uncoated Fe3O4 Nanoparticles

Published online by Cambridge University Press:  31 January 2011

Kamlesh J. Suthar ,
Muralidhar K. Ghantasala ,
Derrick C. Mancini  and
Jan Ilavsky
Kamlesh J. Suthar
Affiliation:
[email protected]@anl.gov, Western Michigan University, Mechanical and Aeronuatical Engineering, Kalamazoo, Michigan, United States
Muralidhar K. Ghantasala
Affiliation:
[email protected], Western Michigan University, Mechanical and Aeronuatical Engineering, Kalamazoo, Michigan, United States
Derrick C. Mancini
Affiliation:
[email protected], Argonne National Laboratory, Center for Nanoscale Materials, Argonne, Illinois, United States
Jan Ilavsky
Affiliation:
[email protected], Argonne National Laboratory, Advanced Photon Source, Argonne, Illinois, United States
Get access

Abstract

This paper presents the results of our analysis of ferrogels prepared using uncoated and polyvinylpyrrolidone (PVP)-coated magnetite (Fe3O4) nanoparticles. The N-isopropylacrylamide (NIPAM) based hydrogel is used with 15-25 nm Fe3O4 nanoparticles different concentrations in the range 1.25 -14%. These samples were analyzed using ultra small angle x-ray scattering (USAXS), Transmission Electron Microscopy (TEM), and Direct-Current Superconducting Quantum Interference Devices (DC-SQUID) magnetometry. Samples prepared with polyvinylpyrrolidone (PVP) coated nanoparticles showed a better single particle distribution compared to uncoated samples. USAXS data indicated that the gels prepared using uncoated nanoparticles have a large two particle agglomerations. In both cases, the volume fraction of the particles in the gel is linearly proportional to the initial particle concentrations. The DC-SQUID magnetometry analysis indicated that the magnetic moment of the gel samples prepared with uncoated particles is ∼ 2emu/g compared to ∼1.5emu/g of those having coated particles.

Keywords

polymertransmission electron microscopy (TEM)magnetic properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1234: Symposium QQ – Responsive Gels and Biopolymer Assemblies , 2009 , 1234-QQ08-09
Copyright
Copyright © Materials Research Society 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Ferrari, M., Nature Reviews Cancer, 5, 161–171 (2005).Google Scholar
2. Chatterjee, J., Haik, Y. and Chen, C. J., Journal of Applied Polymer Science, 91, 3337 (2004).Google Scholar
3. Ding, X. B., Sun, Z. H., Zhang, W. C., Peng, Y. X., Wan, G. X. and Jiang, Y. Y., Journal of Applied Polymer Science, 77, 2915–2920 (2000).Google Scholar
4. Pao, Y., Mechanics today 4, 209–305 (1978).Google Scholar
5. Chatterjee, J., Haik, Y. and Chen, C. Jen, Colloid & Polymer Science, 281, 892–896 (2003).Google Scholar
6. Liu, X., Kaminski, M., Riffle, J., Chen, H., Torno, M., Finck, M., Taylor, L. and Rosengart, A., Journal of Magnetism and Magnetic Materials, 311, 84–87 (2007).Google Scholar
7. Kato, N., Takizawa, Y. and Takahashi, F., Journal of Intelligent Material Systems and Structures, 8, 588 (1997).Google Scholar
8. Zrinyi, M., Barsi, L. and Büki, A., Polymer Gels and Networks, 5, 415–427 (1997).Google Scholar
9. Szabó, D., Czakó-Nagy, I., Zri'nyi, M. and Vértes, A., Journal of Colloid and Interface Science, 221, 166–172 (2000).Google Scholar
10. Filipcsei, A. S. I. C. M. Z. Genovéva, Macromolecular Symposia, 239, 130–137 (2006).Google Scholar
11. Suthar, K. J., Ghantasala, M. K., Mancini, D. C., Martin, L. and Ilavsky, J., International Journal of Advanced Manufacturing Systems, 11, 2008.Google Scholar
12. Suthar, K. J., Ghantasala, M. K., Mancini, D. C. and Ilavsky, J., in Behavior and Mechanics of Multifunctional Materials and Composites 2009 edited by Ounaies, Z. and Li, J. (SPIE, San Diego, CA, USA, 2009), Vol.7289.Google Scholar
13. Ilavsky, J., Allen, A. J., Long, G. G. and Jemian, P. R., Review of Scientific Instruments, 73, 1660–1662 (2002).Google Scholar
14. Ilavsky, J., Jemian, P., Allen, A. J. and Long, G. G., presented at the AIP Conference Proceedings, p510, 2004.Google Scholar
15. Ilavsky, J. and Jemian, P. R., Journal of Applied Crystallography 42, 347–353 (2009).Google Scholar