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Gold-coated iron nanoparticles for biomedical applications
Abstract
We describe the magnetic properties of gold-coated iron nanoparticles, and the effects of low pH and heat treatment. Acicular iron and spherical iron based nanoparticles were coated with a thin layer of gold. The morphology and magnetic properties of magnetic particles were examined using transmission electron microscopy and alternative gradient magnetometry. While the small spherical particles had relatively uniform layers coatings, the larger acicular particles had many gold clusters decorating the surface. The original acicular iron nanoparticles had a specific magnetic moment of 145 emu/g and a coercivity of 1664 Oe. Corrosion tests showed good corrosion resistance for gold-coated commercial iron particles even in a 1.0×10−3 M HCl solution at 80 °C for 12 h, compared with uncoated particles.
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Cited by
Laurent, S., Forge, D., Port, M., Roch, A., Robic, C., Vander Elst, L., & Muller, R. N. (2008) · Chemical Reviews · doi:10.1021/cr068445e · Cited by 6,852
Exchange bias in nanostructures
Nogués, J., Sort, J., Langlais, V., Skumryev, V., Suriñach, S., Muñoz, J. S., & Baró, M. D. (2005) · Physics Reports · doi:10.1016/j.physrep.2005.08.004 · Cited by 1,925
Biological applications of magnetic nanoparticles
Colombo, M., Carregal-Romero, S., Casula, M. F., Gutiérrez, L., Morales, M. P., Böhm, I. B., Heverhagen, J. T., Prosperi, D., & Parak, W. J. (2012) · Chemical Society Reviews · doi:10.1039/c2cs15337h · Cited by 1,315
Biological consequences of nanoscale energy deposition near irradiated heavy atom nanoparticles
McMahon, S. J., Hyland, W. B., Muir, M. F., Coulter, J. A., Jain, S., Butterworth, K. T., Schettino, G., Dickson, G. R., Hounsell, A. R., O'Sullivan, J. M., et al. (2011) · Scientific Reports · doi:10.1038/srep00018 · Cited by 429
Wagener, P., Jakobi, J., Rehbock, C., Chakravadhanula, V. S. K., Thede, C., Wiedwald, U., Bartsch, M., Kienle, L., & Barcikowski, S. (2016) · Scientific Reports · doi:10.1038/srep23352 · Cited by 150
Metadata
- Authors
- Chen, M., Yamamuro, S., Farrell, D., & Majetich, S. A.
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 2003-05-15
- Volume
- 93
- Issue
- 10
- Pages
- 7551-7553
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W1976602662
- Cited by
- 238
- References
- 0
- FWCI
- 7.94
- Type
- journal article
- Language
- en
- Open access
- closed
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- Chen, M., Yamamuro, S., Farrell, D., & Majetich, S. A. (2003). Gold-coated iron nanoparticles for biomedical applications. Journal of Applied Physics. https://doi.org/10.1063/1.1555312
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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