Sequential synthesis of core-shell nanoparticles using reverse micelles
US6773823B2 · kind B2 · utility
27Cited by
11References
30Claims
0Family size
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Key dates
| Filing date | Apr 9, 2001 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Jan 2, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
By utilizing the sequential synthesis afforded reverse micelles, nanocomposite materials can be synthesized which have a diamagnetic core surrounded by a thin shell of ferromagnetic material passivated with a second shell of a diamagnet. Using gold as the diamagnetic material and iron as the ferromagnetic material, nanocomposites can be synthesized where there is a thin layer of the magnetic material, which is passivated and protected from oxidation. In this case, all of the spins of the magnetic layer lie within the surface of the particle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.